Tmkt Ben Phu Xuan Phuoc Khanh

7/23/2019 Tmkt Ben Phu Xuan Phuoc Khanh

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CNG VNG THY NI A THNH PHHCH MINH BN TU 100 KHCHCNG TRNH XY DNG BN PH XUN-PHC KHNH TP 1 - THUYT MINH

CNG TY CPHN U T XY DNG DCH VNAM VIT Trang 1

MC LC

CHNG I. TNG QUAN CHUNG ______________________________________ 6

I.1. Cn c php l_____________________________________________________ 6

I.2. Tng quan chung ___________________________________________________ 7

I.3. Mc tiu_________________________________________________________ 10

I.4. S cn thit phi u t xy dng _____________________________________ 10

I.5. Quy m cng trnh _________________________________________________ 11

I.6. Ch u t _______________________________________________________ 13

I.7. T vn thit k____________________________________________________ 13

I.8. Ngun vn u t__________________________________________________ 13

I.9. Ngun ti liu s dng v cc tiu chun, quy phm s dng nghin cu______ 13

I.10. Phn cpcng trnh _______________________________________________ 14

CHNG II. IU KINT NHIN KHU VC XYDNG_______________ 15

II.1. iu kin a hnh_________________________________________________ 15

II.2. iu kin a cht_________________________________________________ 15

II.3. iu kin kh tng, thy hi vn ____________________________________ 18

CHNG III. THIT KCNG TRNH _________________________________ 23

III.1. Gii php quy hoch mt bng ______________________________________ 23

III.2. Xc nh cc thng s thit k_______________________________________ 31III.3. xut gii php kt cu __________________________________________ 37

CHNG IV. TNH TONKIM TRA CC HNG MC CNG TRNH _____ 41

IV.1. Tnh ton kim tra hng mc cu dn_________________________________ 41

IV.2. Tnh ton kim tra hng mc cu tu _________________________________ 63

CHNG V. CH DN KTHUT_____________________________________ 68

V.1. Yu cu chung ___________________________________________________ 68

V.2. Quy nh vt liu _________________________________________________ 69

CHNG VI. TRNH T V BIN PHP THICNG _____________________ 75VI.1. Trnh t bin php thi cng ch o __________________________________ 75

VI.2. Chng ch cht lng _____________________________________________ 76

VI.3. Tiu chun thi cng v nghim thu___________________________________ 76

CHNG VII. CNG TCVN HNH, BO TR CNG TRNH ___________ 78

VII.1. Cng tc kim tra________________________________________________ 78

VII.2. Trnh t cng tc vn hnh v bo tr cng trnh ________________________ 79

VII.3. Cng tc vn hnh bo tr b phn kt cu cng trnh ____________________ 79

CHNG VIII. BO V MI TRNG, AN TON LAO NG V PHNGCHNG CHY N___________________________________________________ 80


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VIII.1. Bo v mi trng ______________________________________________ 80

VIII.2. An ton lao ng v phng chng chy n ___________________________ 80

CHNG IX. D TON CHI PH ______________________________________ 81

IX.1. C s xc nh___________________________________________________ 81

IX.2. D ton chi ph __________________________________________________ 81CHNG X. KT LUN V KIN NGH________________________________ 84

X.1. Kt lun_________________________________________________________ 84

X.2. Kin ngh _______________________________________________________ 85


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DANH MC BNG

Bng I-1: Danh mc cc quy chun, tiu chun c p dng (khung tiu chun)........................... 13

Bng I-2: Phn cp cng trnh ca d n........................................................................................... 14

Bng II-1: Bng ch tiu cl cc lp t.......................................................................................... 16

Bng II-2: Bng ch tiu cl cc lp t (tip)................................................................................. 17

Bng II-1: Cc gi tr ca nhit khng kh (0C) theo cc thng Trm Tn Sn Nht (1937 1987)............................................................................................................................................................. 18

Bng II-2: Tc gi trung bnh thng Trm Tn Sn Nht (1952 1985)...................................... 18

Bng II-3: c trng thng k ng tn sut mc nc ln nht Nh B....................................... 19

Bng II-4: Gi tr ng tn sut mc nc ln nht Nh B........................................................... 20

Bng II-5:c trng ng tn sut mc nc tht nht Nh B..................................................... 21

Bng II-6: Gi tr c trng tn sut mc nc thp nht trm Nh B............................................ 21

Bng II-7: Tm tt cc thng s thy vn c trng .......................................................................... 22

Bng III-1: Cao y bn (H cao Hn Du)............................................................................. 24

Bng III-2: T s Chiu su/Mn nc tu......................................................................................... 26

Bng III-3: Kt qu chun tc lung tu............................................................................................. 27

Bng III-4: Bng ta khng ch mt bng bn.............................................................................. 30

Bng III-5: Thng s tu thit k........................................................................................................ 31

Bng III-6: Trng lng bn thn cc hng mc khc....................................................................... 32

Bng III-7: Trng lng bn thn cc................................................................................................ 32

Bng III-8 : Kt qu tnh ton ti trng do gi v dng chy tc dng ln tu, iu kin khai thc -Tu 100 khch ..................................................................................................................................... 34

Bng III-9 : Kt qu tnh ton ti trng do gi v dng chy tc dng ln tu, iu kin gi bo - Tu100 khch ............................................................................................................................................ 34

Bng III-10 : Kt qu phn phi lc neo tu 100 khchKhai thc ................................................. 35

Bng III-11 : Kt qu phn phi lc neo tu 100 khch Gi bo .................................................... 35

Bng III-12: Vn tc cp tutnh ton ............................................................................................... 36

Bng IV-1: Ti trng, k hiu ti trng trong phn tch kt cu......................................................... 44

Bng IV-2: Bng t hp ti trng tnh ton........................................................................................ 45

Bng IV-3: Quy nh v vt liu s dng trong phn tch kt cu...................................................... 47

Bng IV-4: Chiu di un v cng l xo u cc cu dn............................................................. 48

Bng IV-5: c trng tit din cc phn t cu dn.......................................................................... 48

Bng IV-6. Tng hp ni lc cc BTCT45x45cm Cu dn.............................................................. 49

Bng IV-7. Tng hp ni lc dm ngang Cu dn.......................................................................... 49

Bng IV-8. Tng hp ni lc dm dc Cu dn............................................................................... 49

Bng IV-9. Tng hp ni lc bn sn Cu dn................................................................................ 50

Bng IV-10. Tng hp tnh chuyn v nt Cu dn.......................................................................... 50


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Bng IV-11. Kt qu tnh ton kim tra ct thp dm ngang, dm dc Cu dn............................. 55

Bng IV-12. Kt qu tnh ton kim tra ct thp bn sn Cu dn.................................................. 56

Bng IV-13. Kt qu tnh ton kim tra ct thp cc 45x45cm Khai thc ....................................... 57

Bng IV-14. Kt qu tnh ton kim tra ct thp cc 45x45cm Cu lp.......................................... 58

Bng IV-15. B tr ct thp cho cc cu kin...................................................................................... 59

Bng IV-16. T s chiu di nhp / chiu cao hu hiu....................................................................... 60

Bng IV-17. Bng tnh ton t s chiu di nhp / chiu cao hu hiu............................................... 60

Bng IV-18: H s an ton cho kh nng chu ti ca cc................................................................. 61

Bng IV-19: Kt qu kim tra sc chu ti ca cc theo t nn........................................................ 62

Bng IV-20: Ti trng do gi v dng chy tc dng ln phao thp Khai thc............................... 63

Bng IV-21: Ti trng do gi v dng chy tc dng ln phao thp Gi bo ................................. 63

Bng V-1: c trng cc b tng ng sut trc............................................................................... 69

Bng V-2: Thnh phn ha hc thp ch to cc ng....................................................................... 70

Bng V-3: Thnh phn ha hc thp tm v thp thanh mi cc...................................................... 70

Bng V-4: Tiu chun th nghim thn m........................................................................................ 71

Bng IX-1: Bng tng hp d ton kinh ph xy dng cng trnh...................................................... 82


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DANH MC HNH

Hnh I-1: Quy hoch h thng giao thng thnh ph H Ch Minh..................................................... 8

Hnh I-2: S tuyn ng thy ni thnh ph H Ch Minh..................................................... 10

Hnh I-3: V tr xy dng cng trnh bn Ph Xun - Phc Khnh............................................. 11

Hnh I-4: nh hin trng v tr xy dng bn Ph Xun - Phc Khnh....................................... 12

Hnh II-1: ng tn sut mc nc ln nht trm nh b (1988-2006) .......................................... 20

Hnh II-2: Mc nc thp nht ti trm Nh b ng vi cc tn sut............................................... 21

Hnh III-1: Cc thnh phn ca chiu rng lung.............................................................................. 25

Hnh III-2: M rng lung ti on cong........................................................................................... 27

Hnh III-3: Mt bng quy hoch bn Ph Xun Phc Khnh 100 khch .................................. 30

Hnh III-4. S phn phi lc neo tu.............................................................................................. 35

Hnh III-5. Mt trc kt cu bn Ph Xun - Phc Khnh........................................................ 38

Hnh III-6. Kt cu cu dn 1 -Bn Ph Xun Phc Khnh............................................................ 39

Hnh III-7. Kt cu nh ch -Bn Ph Xun - Phc Khnh........................................................ 39

Hnh IV-1. Phng php m phng s thc sang s tnh ton................................................. 41

Hnh IV-2. Xc nh v tr ngm gi nh............................................................................................ 42

Hnh IV-3. M hnh tnh ton kt cu cu dn.................................................................................... 47
http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473http://e/0.01%20VO%20TRA%20MY%20WORKS/39.%20BEN%20KHACH%20SG/Bao%20cao%20FS/TM/TM%2025.12.2013/TMKT%20BEN%20PHU%20XUAN%20PHUOC%20KHANH.doc%23_Toc376962473


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CNG TY CPHN U T XY DNGDCH VNAM VIT

S: /13/BCKTKT

CNG HO X HI CHNGHA VIT NAM

c lp - Tdo - Hnh phc

O

TP.HCM, ngy thng nm 201

CNG TRNH XY DNG BNPH XUN - PHC KHNH

CHNG I.TNG QUAN CHUNG

I.1.Cn c php l

Cn cLut Xy dng; Nghnh s: 12/2009/N-CP ngy 12/02/2009 ca Chnhphvqun l dn u t xy dng cng trnh;

Ngh nh 83/2009/N-CP ngy 15/10/2009 ca Chnh ph v sa i, b sung

mt siu Nghnh 12/2009/N-CP;

Nghnh s: 15/2013/N-CP ngy 6/2/2013 ca Chnh phvqun l cht lngcng trnh xy dng;

Thng t s: 10/2013/TT-BXD ngy 25/7/2013 ca BXy dng vphn cp ccloi cng trnh xy dng phc v cng tc qun l cht lng cng trnh xy dngtheo quy nh ti iu 6 ngh nh s 15/2013/N-CP;

Quyt nh s126/2007/Q-UBND ngy 20/10/2007 ca y ban Nhn dn Thnh

phban hnh Quy nh vqun l thc hin cc dn u t sdng vn ngnsch nh nc thnh phHCh Minh;

Quyt nh s 150/2004/Q-UBND ngy 9/6/2004 ca y ban Nhn dn Thnhphvvic ban hnh quy nh qun l, sdng hnh lang trn bsng, knh, rch

thuc a bn Tp. HCh Minh;

Quyt nh 957/Q-BXD ngy 29/9/2009 ca BXy dng vcng bnh mcchi ph qun l dn v t vn u t xy dng cng trnh;

Cng vn s9427/SXD-QLKTXD, ngy 05 thng 12 nm 2011 ca SXy dngthnh phHCh Minh vvic hng dn iu chnh dton xy dng cng trnhtrn a bn thnh phHCh Minh;

Quyt nh s150/Q-UB ngy 09/6/2004 ca y ban nhn dn Thnh phvbanhnh quy nh vQun l, sdng hnh lang trn bsng, knh, rch thuc a

bn Thnh ph


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Cng vn 13952/SGTVT-KH ngy 15/10/2013 vvic btr vn thc hin u txy dng cc cu tu, nh chbn trn cc tuyn du lch ng thy;

Vn bn s14808/SGTVT-KH ngy 18/11/2013, vvic cho thc hin mt s

nhim v, khoch cp bch cui nm 2013 ca sGiao thng Vn ti TP.HCM;

Cng vn 14813/SGTVT-KH ngy 18/11/2013 v vic trin khai thc hin cc

cng trnh cu tu, nh ch, bn trn cc tuyn du lch ng thy nm 2013.

I.2.Tng quan chung

I.2.1.Tng quan chung

Thnh phHCh Minh c 1 vtr a l chin lc quan trng, ttrung tm Thnh

phc thkt ni vi tt c4 hng ng - Ty - Nam - Bc, c thlin kt trc tip

vi tt ccc vng kinh ttrng im ca khu vc.Thnh phHCh Minh c tng chiu di khong 1000km sng, knh, rch c chcnng ng thy ni a v hng hi. Hthng ng thy ni a trn a bn Thnh

phdo 03 n vqun l, bao gm:

- Cc tuyn ng thy ni a quc gia: c 16 tuyn vi tng chiu di l 252km(danh mc cthkm theo Quyt nh s970/2009/Q-BGTVT ngy 15/4/2009ca Btrng BGiao thng vn ti) do Cc ng thy ni a Vit Nam qun

l;

- Tuyn Hng hi: c 07 tuyn hng hi vi tng chiu di 146.8km do Cng vhng hi TPHCM qun l;

- Cc tuyn ng thy ni a a phng: c 87 tuyn vi tng chiu di l574,1km (danh mc c th km theo Quyt nh s 66/2009/Q-UBND ngy14/9/2009 ca y ban nhn dn Thnh ph) do SGiao thng vn ti qun l;

- Hot ng du lch ng thy ca Thnh phtrong nhng nm qua t c

nhng kt qunht nh, lng hnh khch gia tng qua mi nm, nht l tuyn

tm trung Bn Bch ng - CChi Tuy nhin, spht trin cha tng xngvi li thv tim nng hin c, do nhiu nguyn nhn, trong c yu tvc

shtng nh hthng bn tu, cu cng, trm dng chn dc tuyn. Hthngcu tu, nh ch, bn u trn cc tuyn thiu vslng, hn chvcht lng,

hu ht u cha t tiu chun du lch lm km hm s pht trin du lchng thy ca Thnh ph. Cng tc qun l chuyn ngnh v lnh vc ngthy ni a c phn theo cp qun l: c quan trc thuc Trung ng qun l

v cp php cc cng bn thy ni a nm trn tuyn ng thy quc gia (Sng

Si Gn, Sng ng Nai); SGiao thng vn ti chqun l v cp php cng,


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bn thy ni a nm trn tuyn lung hng hi v ng thy ni a aphng;

- Cng trnh xy dng bn Ph Xun - Phc Khnh l mt trong cc cng trnh

thuc hthng cng trnh xy dng cu tu, nh ch, bn u phc vdu lch trna bn thnh phHCh Minh.

Hnh I-1: Quy hoch hthng giao thng thnh phHCh Minh

I.2.2.Cc tuyn khai thc du lch

Qua phi hp lm vic vi SVn ha, Ththao v Du lch, SQuy hoch - Kin

trc, cc qun/huyn lin quan v cc doanh nghip kinh doanh vn chuyn du lch

thy ni a ly kin tng hp cc xut, SGiao thng vn ti thng nht vi cctuyn khai thc du lch ng thy trn a bn Thnh phtheo cc tuyn nh sau:

1. Tuyn tm ngn: cly vn chuyn


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+ Hnh trnh 2: Xut pht tBn Bch ng (sng SG) Rch Bn Ngh

Rch ng LnRch aRch Thy Tiu.

1.2 Tuyn Bn Bch ng - Thanh a Bnh Qui (qua a bn qun Bnh

Thnh, qun 2): c 05 vtr bn.+ Hnh trnh trn sng Si Gn: Xut pht t Bn Bch ng KDL Tn

Cng Khu Lng bit thTho in Khu du lch Bnh Qui 1, 2CLB di

nc Thanh a.

2. Tuyn tm trung: cly vn chuyn 70km.

-


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+ Hnh trnh: Xut pht t nh

ng bng sng Cu Long: tuyn du lch ng sng ny s c quy hoch pht

trin u t giai on sau nm 2015.

Hnh I-2: S tuyn ng thy ni thnh phHCh Minh

I.3.Mc tiu

Bn Ph Xun - Phc Khnh l mt cng trnh thuc hthng cng trnh phc vpht trin du lch ng thy ca Thnh ph. Gp phn p

--

tri

ch. H

Gp phn thit lp cc tuyn khai thc du lch vn ti bng ng thy nhm phttrin v p ng vi nhng thay i kinh t - x hi Thnh ph. H tr gp phngim ti cho vn ti ng btrong tnh trng qu ti hin nay, cng nh to bc t

ph pht trin du lch bng ng thy.

I.4.S cn thit phi u t xy dng

Vi li thkhong 1.000 km sng, knh, rch c chc nng ng thy ni a v

hng hi, TP HCM c mt v tr chin lc trong pht trin du lch ng thy. T


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trung tm thnh phc thkt ni vi tt c4 hng ng - Ty - Nam - Bc v linkt trc tip vi tt ccc vng kinh ttrng im ca khu vc.

Theo nh gi ca S Giao thng Vn ti TP HCM, trong nhng nm qua, lngkhch gia tng mi nm trong hot ng du lch ng thy, nht l tuyn c c lytrung nh Bn Bch ng - CChi Tuy nhin, spht trin ca ngnh du lch nyvn cha tng xng vi li thv tim nng hin c bi hthng cu tu, nh ch,

bn u trn cc tuyn thiu, km cht lng cha t tiu chun du lch.

Vi mc tiu n nm 2020, du lch ng sng s l sn phm ch lc ca thnhph. Do vy vic u t xy mi, nng cp hthng cu tu, nh chv bn dctheo cc tuyn thy ni a trong thnh phnhm khai thc ti a tim nng du lchng thy l vic ht sc cn thit v cp bch. Cng trnh xy dng bn PhXun - Phc Khnh l mt trong s nhng cng trnh c u t xy dng gp

phn hon thnh mc tiu pht trin du lch ng thy ca Thnh phHCh Minh.

I.5.Quy m cng trnh

gp phn pht trin Thnh ph l mt trung tm th du lch ln xng tm cnc, SGiao thng vn ti xy dng trin khai xy dng c shtng phc vphttrin du lch ng thyCng trnh xy dng bn Ph Xun - Phc Khnh viquy m nh sau:

Vtr:Bn thuc khu vc huyn Nh B, nm bn bphi sng Nh B. V tr xydng bn gn vi ph bnh khnh cch ph Bnh Khnh vpha thng lu khong

200m.

Hnh I-3: Vtr xy dng cng trnh bn Ph Xun -Phc Khnh

VTR BN PH XUN -

PHC KHNH


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Hin trng:Hin ti khu vc tip cn c bn ngang sng, khu vc bn trn tipgip vi bsng c nh chmi lp tn.

Tip cn im n:gim thi gian tham quan cc im du lch ti huyn Cn Gi,du khch c vn chuyn bng ng bn Ph Xun. Ty khch bt utham quan cc im du lch: C snui yn Phi Long - X Tam Thn Hip, Vm St,m Di

Quy m: Xy dng 01 cu tu cho tu 100 khch cng hthng nh ch, cu dn vcc cng trnh phtrkhai thc khc.

Hnh I-4:nh hin trng vtr xy dng bn Ph Xun -Phc Khnh


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I.6.Ch u t

Chu t dn: Cng vng thy Ni a thnh phHCh Minh.

I.7.T vn thit k

T vn thit k: Cng ty Cphn u t Xy dng Dch vNam Vit.

I.8.Ngun vn u t

Sdng ngun vn ngn sch.

I.9.Ngun ti liu s dng v cc tiu chun, quy phm s dng nghin cu

I.9.1.Ngun ti liu s dng

Ti liu kho st a hnh t l1/5.00 phc v lp Bo co kinh tk thut cng

trnh bn Ph Xun - Phc Khnh do Cng ty Cphn u t Xy dng DchvNam Vit thc hin thng 11/2013.

Ti liu kho st a cht phc vlp Bo co kinh tkthut cng trnh Ph XunPhc Khnh do Cng ty Cphn u t Xy dng Dch vNam Vit thc hinthng 11/2013.

Cc ti liu khc lin quan nh s tuyn giao thng thy ni a TP.H ChMinh, Bo co s3 vu t xy dng cu tu, nh ch, bn phc vdu lch,Bo co quy m bn v cc ti liu c lin quan khc do chu t cung cp.

I.9.2.Danh mc cc quy chun, tiu chun c p dng (khung tiu chun)Bng I-1: Danh mc cc quy chun, tiu chun c p dng (khung tiu chun)

STT Tn Quy phm, quy trnh, tiu chun M hiu PVAD

1 Quy chun xy dng Vit NamQuynh

chung

2 Btuyn tp TCXD Vit Nam -

3 Tiu chun thit kcng trnh bn cng bin 22TCN 207-92Thit

k

4 Tiu chun thit kcng trnh bn cng sng 22TCN 205-97Thit

k

5 Tiu chun thit kcng trnh bn cng sng 22TCN 219-95 -

6 Quy trnh thit kcng nghcng bin - -

7 Nn cng trnh thy cngtiu chun thit k TCVN 4253-1986 -

8Ti trng & tc ng do sng & do tu ln cng

trnh thy

22TCN 222-95 -

9 Ti trng & tc ng - Tiu chun thit k TCVN 2737-1995 -


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STT Tn Quy phm, quy trnh, tiu chun M hiu PVAD

10 Mng cc - tiu chun thit k TCXD 205-1998 -

11 Kt cu b tng & BTCT thy cng TCVN 4116:1985 -

12 Kt cu b tng ct thp - tiu chun thit k TCVN 5574-2012 -

13Kt cu BT & BTCT: Yu cu bo vchng nmn trong mi trng bin TCVN 9346:2012 -

14Chng n mn trong xy dng, kt cu BT &BTCT

TCVN 3993-1985 -

15 TCTK nn p trn t yu TCVN 262-2000 -

16Kt cu b tng & BTCT ton khi - Quy phmthi cng & nghim thu.

TCVN 4453-1995Thi

cng

17 Kt cu b tng & BTCT lp ghp - Quy phmthi cng & nghim thu

TCVN 4452-1987 -

18 Kt cu thp - Tiu chun thit k TCVN 5575:2012 -

19 Th nghim cc hin trng TCXD 88 - 1982 -

20ng & p cc - Tiu chun thi cng & nghimthu

TCVN 9394: 2012 -

I.10.Phn cp cng trnh

Cp cng trnh ca cc hng mc thuc d n c xc nh theo Thng t s:10/2013/TT-BXD ngy 25/7/2013 ca BXy dng vphn cp cc loi cng trnh

xy dng phc v cng tcqun l cht lng cng trnh xy dng theo quy nh tiiu 6 ngh nh s 15/2013/N-CP.

Bng I-2: Phn cp cng trnh ca dn

STT Tn cng trnh VtrQuy m n

tuCp cng

trnh

1Bn Ph Xun - PhcKhnh Huyn Nh B 100 khch II


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CHNG II.IU KIN T NHIN KHU VC XY DNG

II.1.iu kin a hnh

Cn chs kho st a hnh tl1/500 do Cng ty Cphn u t Xy dng DchvNam Vit lp thng 11/2013, cao mt t tnhin ca phn di nc thay i

trong khong t-0.30m n8.30m. Khu vc trn bcao mt t tnhin thay i

trong khong +1.50m n +1.84m.

II.2.iu kin a cht

Cn chs kho st a cht cng trnh do Cng ty Cphn u t Xy dng Dch

vNam Vit lp thng 11/2013, a tng khu vc xy dng cng trnh bao gm cc

lp t: Lp 1:Bn st mu xm xanh, xen kp nhng lp ct ht mn, trng thi chy n

do chy, cao y lp t -21.4m;

Lp 2: Cct pha, ht mn n trung, mu nu vng, kt cu cht va, cao y

t su -24.2m. SPT t N = 21 ba;

Lp 3: St mu nu, xm xanh, xm vng, xen kp nhng lp ct mng ht mn.

trng thi do mm n do cng. Cao y t su -40.8m;

Lp 4: Ct pha ht mn n trung, trn ln t sn si thch anh, mu xm xanh, kt

cu cht, cao y t su -42.6m. SPT t N = 39 ba;

Lp 5: St, mu nu vng nu , xm xanh, trng thi cng, SPT t N = 44 ba.


16/85



Bng II-1: Bng chtiu c l cc lp t


17/85



Bng II-2: Bng chtiu c l cc lp t (tip)


18/85



II.3.iu kin kh tng, thy hi vn

Khu vc xy dng cng trnh nm trong a bn TP. HCh Minh c thng k, tng

hp ti trm quan trc kh tng Tn Sn Nht (cch khong 20 km). Theo s liu

quan trc ca trm ny cho thy:

II.3.1.Lng ma

Trong nm c 2 ma, ma ma v ma kh. Trung bnh ma kh t thng 11 nm

trc n thng 4 nm sau, ma ma thng 5 n thng 10. Lng ma trung bnh

nm l 1,908.3mm/nm. Nm c lng ma ln nht 2,550.9mm (1917) v nm c

lng ma nhnht 1,391.4mm (1958). Lng ma thng t100300mm/thng). Cc

thng ma kh, lng ma rt nhtvi mm n di 50mm/thng.

II.3.2.Nhit khng khNhit khng trung bnh nhiu nm l 27.20C, nhit cc i quan trc c l

38.00C (thng 4/1959) v nhit khng kh cc tiu quan trc c l 14.70C (thng

12/1975). Nhit trung bnh thng trong nhiu nm dao ng trong khong t25.60C

n 28.90C.

Bng II-3: Cc gi trca nhit khng kh (0C) theo cc thng Trm Tn Sn Nht

(1937 1987)

c Trng Thng

I II III IV V VI VII VIII IX X XI XII

Trung bnh

Cc i

Nm

Cc tiu

Nm

25.6

31.2

1941

21.0

1937

26.6

33.4

1938

22.4

1970

27.9

34.7

1980

22.8

1975

28.9

38.0

1959

24.0

1951

28.6

37.8

1957

25.2

1972

27.6

31.9

1959

24.7

1952

27.3

31.0

1980

24.5

1950

27.2

30.8

1980

24.3

1939

27.0

30.9

1950

24.1

1974

26.8

31.2

1976

23.8

1950

26.4

31.2

1980

22.7

1963

25.8

30.9

1976

21.2

1973

II.3.3.Gi

Trong ma kh gi c hng c trng l hng Bc, ng Bc, trong ma ma

hng gi cho l TyTy Nam. Tc gi trung bnh nhiu nm l 2.8m/s, tc

vmax = 40m/s.

Bng II-4: Tc gi trung bnh thng Trm Tn Sn Nht (1952 1985)

Thng C


19/85



I II III IV V VI VII VIII IX X XI XII nm

2.4 2.9 3.3 3.3 2.7 3.0 3.2 3.5 2.8 2.3 2.2 2.2 2.8

II.3.4.Bo

Theo s liu thng k nhiu nm, bo ti khu vc TP. HCh Minh rt t v thngkhng ln, nu c chtp trung xut hin vo thng 10, thng 11 vi vn tc gi di

20m/s.

II.3.5. m khng kh

Trong nm m tng i trung bnh cc thng ma ma cao hn ma kh.

Thng 5 n thng 11 m tng i trung bnh t8086%, trong thng 9 c m cao nht l 86 %.

Thng 12 n thng 4 nm sau, m tng i trung bnh t7178%, trong thng

2, thng 3 thp nht l 71%.

m ti cao trung bnh ca cc thng u t trn 90%, ring cc thng ma ma t9196%. m ti thp trung bnh t4364%.

m trung bnh nhiu nm ca khng kh vo khong 83%, m tng i trung

bnh thng thay i trong khong t69% n 84% m cc i l 100% v cc tiul 62%. Cc gitrca m khng kh thng quan trc c vo cc thng cui ma

kh (thng 2 - thng 3), v gi trcc i ca m khng kh thng xy ra vo ccthng gia ma ma (thng 8 - thng 9).

II.3.6.iu kin thy vn

Ti liu mc nc tnh ton ti da theo s liu trm thy vn gn nht l trm Nh

B. Da theo s liu thng t nm 1988 n nm 2006 ca trm Nh B tin hnh v

ng tn sut v kt qu c trng tn sut c trnh by bng v hnh v di

y.

BngII-5:c trng thng k ng tn sut mc nc ln nht Nh B

c trng thng k Gi tr n v

Gi trtrung bnh 138.42 cm

Hsphn tn CV 0.07

Hsthin lch CS 0.68


20/85



FFC 2008 NghiemTienLam

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

195

0.01 0.1 1 10 20 30 40 50 60 70 80 90 99 99.9 99.99

NG TN SUT MC NC LN NHT TRM NH B (1988-2006)

MCNC,H(m)

Tn sut, P(%)

S liu thc oTB=138.42, Cv=0.06, Cs=0.68

Hmax

TB=138.42, Cv=0.07, Cs=0.68

FFC 2008

Hnh II-1:ng tn sut mc nc ln nht trm nh b (1988-2006)

BngII-6: Gi tr ng tn sut mc nc ln nht Nh B

Th t Tn sutP(%)

Z(cm)

Thi gian lp li (nm)

1 0.01 191.07 10000.000

2 0.10 179.25 1000.000

3 0.20 175.53 500.000

5 0.50 170.46 200.000

6 1.00 166.48 100.000

7 1.50 164.07 66.667

8 2.00 162.33 50.000

9 5.00 156.48 20.000

10 10.00 151.65 10.000

11 20.00 146.26 5.000

12 50.00 137.25 2.000

13 90.00 126.51 1.111

14 95.00 124.05 1.053

15 99.99 114.25 1.000


21/85



FFC 2008 NghiemTi en Lam

-2.9

-2.8

-2.7

-2.6

-2.5

-2.4

-2.3

-2.2

-2.1

-2

-1.9

-1.8

-1.7

0.01 0.1 1 10 20 30 40 50 60 70 80 90 99 99.9 99.99

NG TN SUT MC NC MIN TRM NH B (1988-2006)

Mcnc,

Z(m)

Tn sut, P(%)

Zmin nm Nh BTB=-2.43, Cv=-0.06, Cs=-0.39

TB=-2.43, Cv=-0.06, Cs=0.39

FFC 2008Hnh II-2:Mc nc thp nht ti trm Nh b ng vi cc tn sut

BngII-7:c trng ng tn sut mc nc tht nht Nh Bc trng thng k Gi tr n v

Gi tr trung bnh -2.43 m

H s phn tn CV -0.06

H s thin lch CS 0.39

BngII-8: Gi tr c trng tn sut mc nc thp nht trm Nh B

Th t Tn sut P(%) Z m Thi gian lp li (nm)1 0.01 -1.76 10000.000

2 0.10 -1.90 1000.000

3 0.20 -1.94 500.000

5 0.50 -2.00 200.000

6 1.00 -2.05 100.000

7 1.50 -2.08 66.667

8 2.00 -2.10 50.000


22/85



Th t Tn sut P(%) Z m Thi gian lp li (nm)

9 5.00 -2.17 20.000

10 10.00 -2.24 10.000

11 20.00 -2.31 5.00012 25.00 -2.34 4.000

13 50.00 -2.44 2.000

14 90.00 -2.61 1.111

15 95.00 -2.65 1.053

16 99.99 -2.86 1.000

Mc nc thit k c xc nh theo 22TCN207-92 Cng trnh bn cng bin

Tiu chun thit k tng ng cng trnh cp II:+ Mc nc cao thit k tn sut P = 5%:H5%= + 1.56m (cao Hn Du)

+ Mc nc thp thit k tn sut P = 99%: H99%= - 2.82m (cao Hn Du)

II.3.7.Ch dng chy

Chdng chy trn knh chu nh hng bi dng triu, vn tc dng chy sdng

tnh ton: Theo phng dc 2.0m/s; Theo phng ngang 0.5m/s.

II.3.8.Sng

Khu vc xy dng nm su trong ni a khng c sng tnhin m chyu sng to

ra do tu bin hnh trnh trn sng. Do , bqua tc ng ca sng ln cng trnh.

BngII-9: Tm tt cc thng s thy vn c trng

Ch tiu Gi tr

Nhit trun bnh nm 27c

m khn kh trun bnh 79,5%

Ln ma trun bnh 1098 mm

Ln ma nm ln nht c th t 22,4 mm

Lng bc hi trung bnh/ ngy 3,7 mm

S i nn trun bnh / n 6,3 i

Hng gi ch yu Ty Nam


23/85



CHNG III.THIT K CNG TRNH

III.1.Gii php quy hoch mt bng

III.1.1.i tu khai thc

Quy m vi tu khch khai thc ti cc cng do chu t cung cp, vi cc thng

skthut:

Bn Ph Xun - Phc Khnh: Quy m tu 100 khch

STT Loi tuLng gin nc

M (Tn)

Chiu di

L(m)

Chiu rng

B (m)

Chiu cao

mn (m)

Mn nc

T (m)

1 100 khch 101 27 7.95 2.30 1.10

III.1.2.Xc nh cc thng s c bn ca bn

III.1.2.1Cao trnh nh bn

Theo kin ngh ca s GTVT TP. H Ch Minh tt c cc hng mc bn khch s

dng dng bn phao ni bng phao ni bng thp. Bn giao ng ln xung theo mc

nc v vy vic xc nh cao nh bn l khng cn thit.

Cao mt cu dn v nh chc xc nh theo Tiu chun thit k cng trnh bn

cng bin22TCN207-92.

CT= MNCTK + 1m = +1.56 + 1 = + 2.56 (m) (h cao Hn Du)

Chn cao trnh nh cu dn v nh ch CT = +2.60m (h cao Hn Du)

III.1.2.2

Cao trnh y bn

Cao y bn c xc nh:

CB = MNTTK - Hc

Trong :

Hc: su thit kc tnh nh sau: Hc= Hct+ Z4Hct: su chy tu c tnh nh sau:

Hct= T + Z1+ Z2+ Z3+ Z0

T: Mn nc tu tnh ton, m.

Z0: Dphng cho snghing lch ca tu, m.

Z1: Dphng chy tu ti thiu, m.

Z2: Dphng cho sng, m.

Z3: Dphng vvn tc, m.Z4: Dphng cho sa bi, m.


24/85



Kt qutnh ton cho nh sau:

BngIII-1: Cao y bn (Hcao Hn Du)

Tuc trngtnh ton

MNTTKChiu su dphng

(m)

Chiu caotrc bn

(m)

Cao y bn

(m)

(khch)T

(m)B

(m)(m) Z0 Z1 Z2 Z3 Z4 H0 CTB

100 1.1 7.95 -2.82 0.14 0.04 0.05 0 0.4 1.729 -4.60

III.1.2.3Cc kch thc c bn ca bn

Chiu di bn, chiu rng bn c ly bng kch thc phao ni bng thp:

- Chiu di bn: 24.0m

- Chiu rng bn: 3.0m

III.1.2.4Lung v vng quay tu

a, Chun tc lung:

Lung tu c xc nh theo 22TCN-2005 Tiu chun ngnh - Hng dn thit klung tu ng thy ni a.

Brng lung tu:

Tnh ton chiu rng lung chy tu yu cu trn cc sng, ca sng v h, c xemxt da trn cc yu tsau y:

- Chiu rng di hot ng c bn ca tu thit k;

- Tc tu;

- Gi ngang;

- Dng chy ngang;

- Dng chy dc;

- Sng;

- Phao tiu bo hiu;

- Vt liu y lung;

- Chiu su lung;

- Loi hng;

- Khong cch tu trnh nhau;

- Khong cch n b;

Chiu rng lung tu mt ln WOLPc xc nh nh sau:


25/85



BCGBCR

n

i

iMOLP WWWWW1

Chiu rng lung tu hai ln WTLP c xc nh nh sau:

PBCGBCR

n

ni

iMTLP WWWWWW 22

Trong :

- WM: Chiu rng di hot ng c bn (vt chy tu)

- Wi: Chiu rng gia tng yu cu do cc nh hng ca cc yu tnh ktrn.

- WBCR, WBCG: Khong cch lu d ln lt n bbn phi (phao mu )v bbn tri (phao mu xanh) ca lung tu

- WP: Khong cch an ton gia hai tu

Hnh III-1: Cc thnh phn ca chiu rng lung

Chiu su lung tu:

Chiu su lung c tnh tmc nc thp thit k.Khi thit k cn xem xt tho mn ch s chiu su Froude nh hn 0.7(Fnh< 0.7) i vi trng ti tu thng.

gh

VFnh

Trong :

- V: L tc tu trong nc, m/s;

- G: Gia tc trng trng, m/s2;

- H: Chiu su nc tnh (khng bnhiu ng), m.


26/85



Vi cc chschiu su Froude nh, cng sut yu cu duy tr tc tu stngnhanh. Do , vi cc tc tu trong khong t 2m/s n 4m/s, chiu su tng ngkhng nn nhhn t0.8 m n 3.3m.

Trn cc mt ct tuyn lung tu sng v ca sng, chiu su khng nn nhhn 1,2

ln mn nc ln nht ca tu thit k. Tuy nhin, cc mt ct rng ni c sng giln n 0,5m v 1,0m th hsny phi ly l 1.3. Khi c sng cao hn th cn khost thm c tnh ri ro tu mc cn. Tiu ch chiu su ny cng p dng cho vnghv hcha nc.

Trn cc knh chy tu nhn to, chiu su ca mt ct lung hai ln cn ly t nhtbng 1,4 ln mn cht ti ti a ca tu thit k. i vi mt ct lung hai ln hn chv mt ct lung mt ln, hsny khng nn nhhn 1.3.

Bt klc no cng phi bo m chiu su chy tu. Do , chiu su duy tu v chiusu trong cc quy nh kthut cho cng tc no vt nn bng hoc ln hn chiu su

tuyn lung trnh by trn, tuthuc vo mc sa bi dkin v tn sut novt dkin.

Tsgia chiu su v mn nc tu m ttrn c tm lc trongBng III-2:

BngIII-2: T s Chiu su/Mn nc tu

Cc on sng v casng

Knh chy tu nhn to

TsChiu su/ Mnnc

C che

chn

C sng(0.5 1.0)

m

Mt ctlung hai

ln

Mt ctlung hai

ln hn ch

Mt ctlung mt

ln

1.2 1.3 1.4 1.3 1.3

Bn knh cong lung tu:

Bn knh cong R ca tim tuyn lung chy tu c xc nh nh sau:

R 6L cho cc tuyn lung vi mt ct lung hai ln;

R 4L cho cc tuyn lung vi mt ct lung hai ln hn chv mt ct lungmt ln.

Trong : L l chiu di tiu chun ca tu thit k.

Nu vic thc hin cc yu cu thit kny dn ti kinh ph qu cao, c th ly bnknh cong nhhn i vi cc tuyn lung hai ln hn chv lung mt ln, nhng

bn knh khng nn nhhn 3 ln chiu di tiu chun ca tu thit k.

Khi R < 10L v gc cong ln hn 300, phi tnh chiu rng gia tng cho di chytu: b= CL

2/R. Gi trC nn ly nh sau:

+ C = 0.5 i vi tu khng ti, v

+ C = 0.25 i vi tu cht y ti.


27/85



Cn c chiu rng gia tng ti cao y trn cc tuyn lung thin nhin v ti caoy sng tu thit ktrn cc knh chy tu nhn to.

Chiu rng gia tng khng nn nh hn 2 ln b trn cc mt ct lung hai ln vkhng nn nhhn b trn cc mt ct lung mt ln.

Khi gc cong nhhn 30o, chiu rng gia tng cho lung c thgim i mt hs/30.

Khi R 10L, chiu rng lung tu ti on cong khng nn ly nhhn chiu rngca cc on lung thng lin k.

Phi mrng on cong vpha bli ca ng cong. Khi vtr on cong yu cukhc i, th c thmrng on cong vchai bn hoc chmrng on cong v

pha blm ca on cong.

Schuyn tip gia chiu rng trn mt ct on lung thng v chiu rng trn oncong cn mrng dn dn vi mt gc c tg = 1/20.

Hnh III-2:M rng lung ti on cong

Kt qutnh ton chun tc lung tu c thhin trong sau:

BngIII-3: Kt qu chun tc lung tu

TT Thng s tnh ton K hiu Cngthc

Tu 100khch

n v

1 Chiu di tu L 27.00 m

2 Chiu rng tu B 7.95 m

3 Mn nc y ti T 1.10 m

4 Chiu rng di hot ng c bn WM 1.3B 10.34 m

5 Chiu rng gia tng yu cu Wi 7.95 m

6 + Gi ngang thnh hnh W1 0.4B 3.18 m


28/85



TT Thng s tnh ton K hiuCngthc

Tu 100khch

n v

7 + Dng chy ngang thnh hnh W2 0.1B 0.795 m

8 + Dng chy dc thnh hnh W3 0.1B 0.795 m

9+ Chiu cao HS v chiu di

sng c nghaW4 0 0 m

10 + Phao tiu bo hiu W5 0.1B 0.80 m

11 + B mt y lung W6 0.1B 0.80 m

12 + Chiu su lung tu W7 0.2B 1.59 m

13 + Mc nguy him hng ha W8 0 0 m

14 Khong cch lu d n b WBCR, WBCG 0.3B 2.39 m

15 Khong cch an ton gia 2 tu WP 1B 7.95 m

16 Chiu rng lung tu 2 ln 50 m

17 Chiu rng lung tu 1 ln 29 m

18 Kim tra h s Fnh


29/85



Cn cmt bng hin trng v tr khu vc lp dn; cn ckt qukho st ahnh, a cht, kho st thc a do Cng ty Cphn u t Xy dng Dch v

Nam Vit thc hin kt hp cc ti liu do Chu t cung cp;

Cn cchc nng, nhim vv kt qutnh ton quy m ca cc hng mc cng

trnh thuc dn.Vic nghin cu thit kquy hoch tng mt bng cng phi t c cc mc tiusau:

Nghin cu btr mt bng hp l, ph hp vi tng thquy hoch chung hthngcng thy ni a trn ton thnh phv khu vc. Cc hng mc u t xy dngcn tun thvi quy hoch chung, va m bo tnh c lp trong xy dng, vam bo tnh lin hon trong vn hnh khai thc nhm hnh thnh h thng cngkhch chuyn dng phc vvn ti hnh khch v du lch;

m bo tnh thun li v an ton cho hnh khch ln xung tu thuyn; m boan ton cho tu b ra vo neo u khu vc cng cng nh cc phng tin thylu thng trn tuyn lung; Tun thquy nh an ton hng hi ca Vit Nam vquc t;

Ti u ha yu tkinh t, kthut nhm gim mc u t xy dng; Gim thiukhi lng no vt, hn chti a tc ng cng bc n hnh thi vn ng bhin hu;

Gii php quy hoch mt bng bn ng bvi gii php thit b cng ngh lachn tng ng; m bo tnh an ton cho con ngi, thit bcng nh cc iu

kin vmi sinh, mi trng, an ton phng chy cha chy;Qui hoch xy dng cc hng mc cng trnh phi ph hp vi qui m cng trongtng giai on, m bo tnh lin tc trong sut qu trnh pht trin cng; giai ontip theo l ktha ca giai on trc, m bo va khai thc, va tip tc xydng m khng nh hng ln nhau.

III.1.3.2Gii php quy hoch mt bng cc hng mc cng trnh

Bn thuc khu vc huyn Nh B, nm bn bphi sng Nh B. Vtr xy dng bn

gn vi ph bnh khnh cc ph Bnh Khnh vpha thng lu khong 200m. Bn cquy m cho tu 100 khch, c b tr song song vi tuyn bsng. Chiu di bn

24.0m, rng 3.0m, kt ni vi bbng 01 on cu dn v v cu la triu:

- Cu dn: Di 20m, rng 2.5m, c btr vung gc vi tuyn ng b.

- Cu la triu: Cu la triu bng thp di 10m, rng 1.2m.

Nh ch15x5m c btr trn b.


30/85



Hnh III-3: Mt bng quy hoch bn Ph XunPhc Khnh100 khch

BngIII-4:Bng ta khng ch mt bng bn

Hng mc Tn imTa (VN-2000)

X Y

Nh ch

NC1 1,180,645.635 610,968.738

NC2 1,180,649.022 610,965.061

NC3 1,180,656.667 610,978.902

NC4 1,180,660.054 610,981.173

Cu dn

CD1 1,180,661.376 610,981.173CD2 1,180,662.724 610,979.698

CD3 1,180,676.139 610,994.666

CD4 1,180,677.488 610,993.190

Phao niBP1 1,180,685.582 611,003.945

BP2 1,180,701.774 610,986.230

Khu nc

KN1 1,180,677.802 611,008.010

KN2 1,180,705.126 610,978.116

KN3 1,180,680.016 611,010.034KN4 1,180,707.340 610,980.140


31/85



Hng mc Tn imTa (VN-2000)

X Y

KN5 1,180,691.769 611,029.921

KN6 1,180,728.200 610,990.062

KN7 1,180,703.923 611,041.030KN8 1,180,740.355 611,001.172

KN9 1,180,725.876 611,044.161

KN10 1,180,745.441 611,022.756

KN11 1,180,762.782 611,077.894

KN12 1,180,782.347 611,056.489

III.2.Xc nh cc thng s thit k

III.2.1.iu kin t nhin khi khai thc- Mc nc cao thit ktn sut P = 5%:H5%= + 1.56m (cao Hn Du);

- Mc nc thp thit ktn sut P = 99%: H99%= - 2.82m (cao Hn Du);

- Vn tc dng chy: Theo phng dc 2.0m/s ; Theo phng ngang 0.5m/s;

- Vn tc gi khai thc: 15.0m/s;

- Vn tc gi trong bo: 30.0m/s.

III.2.2.Thng s tu thit k

i vi thng stu thit k, sdng cc thng stu thit kdo chu tcung cp:

BngIII-5: Thng s tu thit k

STT Loi tuLng gin

ncM (Tn)

Chiu diL(m)

ChiurngB (m)

Chiu caomn (m)

Mn ncT (m)

1 100 khch 101 27 7.95 1.10 2.3

(Thng s tu do Chu t cung cp, sdng thng s tu tng ng hoc ln

hn).III.2.3.Ti trng thit k

III.2.3.1Ti trng bn thn kt cu

Trng lng bn thn kt cu b tng ct thp (khng k trng lng cc) do phnmm phn tch kt cu ttnh bng cch khai bo gi trtrng lng bn thn b tng

24.5 kN/m3vo phn c trng vt liu.

Trng lng bn thn ca cc hng mc khc c lit k trong bng sau:


32/85



BngIII-6: Trng lng bn thn cc hng mc khc

Hng mcTrng lng bn thn

Ti tp trung (kN)Ti phn b(kN/m -

kN/m2)

m tu cao su chD 0.670 -Bch neo 10T 0.250 -

Lan can thp - 0.500

III.2.3.2

Trng lng bn thn cc

Trng lng bn thn c tnh ton tcc thnh phn sau:

- Trng lng cc;

- Trng lng b tng u cc;

- Trng lng cc sinh vt bm trn cc;

- Lc y ni ca nc.

BngIII-7: Trng lng bn thn cc

Vtr CcChiu di

(m)Trng lng (kN)

Cu dn Cc BTCT45x45cm 38 118.58

III.2.3.3

Hot ti tnh ton cu dn v sn nh chTi trng tc dng ln cu dn v sn nh ch c xc nh theo Ti trng v tcngTiu chun thit kTCVN 2737-1995. Vi gi trquy vti trng phn butrn mt sn 4.0kN/m2.

III.2.3.4

Ti trng do mi trng

Ti trng do mi trng tc dng ln cng trnh bao gm ti dng chy, ti gi v tinhit gy ra.

Ti do dng chy:- Vn tc dng chy theo phng dc: V = 2.0m/s;

- Vn tc dng chy theo phng ngang: v = 0.5m/s.

Ti do gi tc dng ln cng trnh:

Vn tc gi ln nht dng trong tnh ton nh sau:

- Vn tc gi thit ktrong iu kin khai thc l 15m/s;

- Vn tc gi thit ktrong iu kin gi bo l 30m/s.

Ti do nhit :


33/85



Trong tnh ton thit k chn bin thay i nhit l 100C i vi s thay inhit mt cch ng u trn ton b kt cu bn; bin 5 0C i vi s chnhlch nhit gia b mt v y kt cu bn.

III.2.3.5

Ti trng do tu

Ti trng do tu bao gm ti neo v ti va tu.

a. Ti neo tu:

Ti neo tu c tnh ton theo 22TCN222-95, vi cc iu kin sau:

- Vn tc gi trong iu kin khai thc: V = 15 m/s

- Vn tc gi trong iu kin khai gi bo: V = 30 m/s

- V vn tc dng chy dc: Vd= 1.0 m/s.

- Vn tc dng chy ngang: Vn= 0.5 m/s. Ti trng do gi:

Lc do gi theo phng ngang Wq(T) v phng dc Wn(T):

Wq= 7,5 x 10-5x Aqx Vq

2x

Wn= 7,5 x 10-5x Anx Vn

2x

Trong :

Vq, Vn- Vn tc gi theo hng ngang v hng dc ca Tu, m/s

Aq, An- Din tch chn gi theo phng ngang v phng dc Tu, m2

- Hsly theo bng 26.

Kt qutnh ton xem bng III-1, III-2.

Ti trng do dng chy:

Lc do dng chy theo phng ngang Q (T) v phng dc N (T):

Q = 0,06 x Atx Vt2

N = 0,06 x Alx Vl2

Trong :

Vt, Vl - Vn tc dng chy theo phng vung gc v song song mnTu, m/s.

At, Al- Din tch cn nc theo phng ngang v dc Tu, m2

Vn tc dng chy theo phng ngang V=0.5m/s, theo phng dc V=2.0m/s.


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Kt qutnh ton trong iu kin khai thc:

BngIII-8 :Kt qu tnh ton ti trng do gi v dng chy tc dng ln tu, iukin khai thc - Tu 100 khch

Tnh ton ti trng do gi v dng chytc ng ln tu trong iu kin khai

thc

Phng ngang (q) Phng dc (n)

ykhch

Khngkhch

ykhch

Khngkhch

Hs 0.50 0.50 0.90 0.90

Hsq/ n 0.06 0.10 0.95 1.20

Vn tc gi (m/s) 13.00 13.00 13.00 13.00

Din tch chn gi Aq / An (m2) 43.74 72.90 60.04 75.84

Lc do gi Wq/Wn (KN) 2.72 4.53 4.47 5.65

Vn tc dng chy (m/s) 0.50 0.50 2.00 2.00

Hss 0.80 0.80 0.80 0.80Din tch chn nc At/Al (m2) 29.70 21.60 7.00 5.09

Lc do dng chy Qw/Nw (KN) 4.38 3.19 16.51 12.01

Tng cng (KN) 7.10 7.72 20.99 17.66

Kt qutnh ton trong iu kin gi bo:

BngIII-9 :Kt qu tnh ton ti trng do gi v dng chy tc dng ln tu, iukin gi bo - Tu 100 khch

Tnh ton ti trng do gi v dng chytc ng ln tu trong iu kin khaithc

Phng ngang (q) Phng dc(n)

ykhch

Khngkhch

ykhch

Khngkhch

Hs 0.50 0.50 0.90 0.90

Hsq/ n 0.06 0.10 0.95 1.20

Vn tc gi (m/s) 22.00 22.00 22.00 22.00

Din tch chn gi Aq / An (m2) 43.74 72.90 60.04 75.84

Lc do gi Wq/Wn (KN) 7.79 12.98 12.82 16.19

Vn tc dng chy (m/s) 0.50 0.50 2.00 2.00

Hss 0.80 0.80 0.80 0.80

Din tch chn nc At/Al (m2) 29.70 21.60 7.00 5.09

Lc do dng chy Qw/Nw (KN) 4.38 3.19 16.51 12.01

Tng cng (KN) 12.17 16.17 29.33 28.20

Phn phi lc neo:

Cc thnh phn ca lc neo tc ng ln bn c phn phi da theo gc ca dy neokhc nhau trn mt bng v mt ng.

S lng im neo tnh ton:


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- Neo ngang2 im neo.

- Neo dc1 im neo.

Trn c sphn tch trn, tng lc ngang Qtotphn phi ln mi bch neo nh sau:

Lc tc ng ln mt bch neo:

cossinn

QS tot

Trong :

n - Slng bch neo ng thi chu lc

, - Gc nghing ca dy neo trn mt bng v theo phng ng

Hnh chiu ca lc S ln cc phng vung gc, song song vi mp bn v thng

ng ln lt l:

n

QSq tot

coscosSSn

sinSSv

Kt quphn phi lc neo tu c thhin trong cc bng sau:

iu kin khai thc:

BngIII-10 : Kt qu phn phi lc neo tu 100 khchKhai thc

Trng titu

Lcngang

Gc nghing dyneo

Lc neo tc dng ln cng trnh

100 khch Qtot(KN) () () S (KN) Sq (KN) Sn (KN) Sv (KN)

1 20.985 60 30 22.384 16.788 9.693 11.192

2 20.985 70 30 15.472 12.591 4.583 7.736

3 20.985 20 30 21.255 6.296 17.297 10.627

iu kin gi bo:

BngIII-11 : Kt qu phn phi lc neo tu 100 khchGi bo

Trng titu

Lcngang

Gc nghing dyneo

Lc neo tc dng ln cng trnh

100 khch Qtot(KN) () () S (KN) Sq (KN) Sn (KN) Sv (KN)

1 29.326 60 30 31.281 23.461 13.545 15.641

2 29.326 70 30 21.622 17.596 6.404 10.811

3 29.326 20 30 29.703 8.798 24.172 14.851

Hnh III-4. S phnphi lc neo tu


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La chn bch neo:

Tcc kt qutnh ton lc neo, ta la chn bch neo BIG T 10T.

b. Ti va tu:

Ti va tu c tnh ton theo 22TCN222-95, vi cc iu kin nh bng sau:BngIII-12: Vn tc cp tu tnh ton

STT Trng Ti (DWT/T)Lng gin nc

M (Tn)Vn tc cp tu

(m/s)

1 100 Khch 101 0.30

Lc va tu tc dng ln trva c tnh ton cho tu 50 khch. Cc lc va ny cxc nh tnng lng va tu v nng lng hp thca loi m sdng, ti trng

va tu sc tnh ton theo 22 TCN 222-95 Ti trng v tc ng ln cng trnhthy.

Nng lng va tu:

Nng lng va tu c tnh theo cng thc sau:

g2

DvE

2

q(T.m)

Trong :

- Hsng nng, tra theo bng 30 ca tiu chun.

D - Lng gin nc (T).

v - Vn tc cp tu theo phng vung gc (m/s).

Kt qutnh ton va tu:

Kt qutnh ton thhin trong bng sau:

T vn:

CNG TY CPHN U TXY DNG DCH VNAM VIT

Cng trnh:CNG TRNH XY DNG BN PHXUNPHC KHNH

Chu t: CNG VT NI A TP.HCM

Hng mc: CU TU 100 KHCH

Ti liu tnh ton Tiu chun thit k22TCN222-95

Sliu tnh ton: Tu 100 khch n v

Trng lng tu " DWT " = 100 Khch T

Lng gin nc " M" = 101 T

Chiu di tng cng ca tu " Loa" = 27.00 m

Chiu di gia 2 on vung gc " Lbp" = 24.50 m

Brng tu " B" = 7.95 mMn nc " df" = 1.10 m


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T vn:

CNG TY CPHN U TXY DNG DCH VNAM VIT

Cng trnh:CNG TRNH XY DNG BN PHXUNPHC KHNH

Chu t: CNG VT NI A TP.HCM

Hng mc: CU TU 100 KHCH

Vn tc cp tu "V"= 0.3 m/sHs, theo bng 30-22TCN222-95 ""= 1.6

ng nng cp tu "Eq" = 0.741 T.m

La chn m tu:

Loi m tu la chn = m cao su chD

Nng lng hp th"Ed"= 1.25 T.m

Chiu cao m "H"= 0.25 m

Chiu di m "L"= 1.0 m

bin dng thit k= 52.50%%

Phn lc vung gc vi mp bn "Ry" = 8.56 T

Phn lc song song vi mp bn "Rx" = 1.71 T

III.2.4.H s an ton

Hsan ton sdng trong tnh ton sc chu ti ca cc theo cng t nn c

ly bng 1.4 cho cc chu nn v cc chu nh.

III.2.5.iu kin m rng vt nt

Chiu rng vt nt cho php trong cu kin b tng ct thp chu un l 0.08mm.

III.3. xut gii php kt cu

III.3.1.Cu tu

Cu tu bn Ph Xun - Phc Khnh c thit kc thtip nhn tu 100 khch,s dng kt cu dng phao thp LxBxT = 24.0x3.0x1.5m. Phao c cc thng s kthut sau:

- Chiu di ln nht: Lmax= 24.10 m

- Chiu di thit k: Ltk= 24.00 m- Chiu rng ln nht: Lmax= 3.10 m

- Chiu rng thit k: Ltk= 3.00 m

- Chiu cao thnh phao thp: D = 1.50 m

- Mn nc phao thp: T = 0.80 m

Bn c neo gibng 04 cm cc ng BTCT dng lc D500mm, T=90mm, di40m (mi cm 02 cc) v c kt ni vi cu dn bng thang la triu di 10.0 mrng 1.2 m. Trn mt bn v cu la triu c s dng mt sn thp gn dy 5mm

chng trt.m tu sdng l loi m cao su chD.


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Du thuyen

TRANG THAI BEN KHI THUY TRIEU XUONG THAP

Hnh III-5.Mt trc kt cu bn Ph Xun -Phc Khnh

III.3.2.Cu dn

Cu dn 1 di 20.0m rng 2.5m sdng kt cu dng hdm bn trn nn cc BTCT450x450mm di 38m.

Nn cc:Tng scc BTCT 450x450mm sdng l 10 cc, ton bcc cng thng ng. Bc cc theo phng ngang 1.10m; theo phng dc 4.50m.

Hdm: Hthng dm bao gm dm ngang, dm dc bng b tng ct thp, btng 1x2 c cng nn mu hnh lp phng 28 ngy tui l 30MPa.

- Dm ngang: Tng sdm ngang l 05 dm, c kch thc BxH = 500x700mm,bc dm 4.50m.

- Dm dc: Tng sdm dc trn mt phn on l 02 dm, c kch thc BxH= 500x700mm,bc dm 1.10m.

Bn sn:Bn sn bng b tng ct thp, b tng 1x2 cng nn muhnh lp phng 28 ngy tui l 30MPa. Chiu dy sn b tng ct thp l250mm c thi cng ti ch.

Trchng va tri:Gm 03 tr, mi trgm 02 cc ng BTCTUST D500mm,di 40m, hai cc c lin kt vi nhau bng thp hnh I200. ng dc theothang la triu v bn phao thp, khong cch gia cc trl 4.0m.


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A B

3 4 51 2

Hnh III-6.Kt cu cu dn 1- Bn Ph Xun Phc Khnh

(Chi tit kt cu sn nh chxem bn v)

III.3.3.Nh ch

Nh chdi 15.0m rng 5.0m sdng kt cu khung thp lp mi tn. Tng gchcao 1m dy 110mm, mi c lp bng tn gingi mu thm.

(Chi tit kt cu Nh chxem bn v)

+2.00

+2.60

+3.60

12345

+2.00

+2.60

+3.60

Hnh III-7.Kt cu nh ch -Bn Ph Xun -Phc Khnh

III.3.4.Thit k no vt

III.3.4.1Phm vi v cao no vt

Phm vi no vt ca bn c xc nh bao gm:

- Khu vc vng quay tu v khu nc trc bn : c no vt ti cao -4.60m

(ND);


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- Khu vc phao thp: m bo phao khng b nghing lch trong iu kinmc nc thp, khu vc t phao thp sc no vt ti cao -4.60m (ND),m bo cho phao trng thi ni trong nc kctrong trng hp mc ncthp thit k-2.82m (ND).

III.3.4.2Mi dc no vt

Cn cvo a cht khu vc xy dng cng trnh, chn hsmi dc no vt m = 10i vi tuyn lung v vng quay tu; Mi dc gm bn chn m = 5.

III.3.4.3

Phng php xc nh Khi lng no vt

Phng php tnh khi lng no vt trong hs ny c kin nghsdng phngphp trung bnh mt ct ngang. Nguyn l tnh ton nh sau:

T din tch no vt tng mt ct v khong cch gia cc mt ct, tnh c khi

lng no vt gia 2 mt ct theo cng thc:

11

12

iiii

ii BSS

V

Trong :

Vii+1: khi lng no vt gia hai mt ct th i v th i+1.

Si: din tch no vt ca mt ct ngang th i.

Si+1: din tch no vt ca mt ct ngang th i +1.

Bii+1: khong cch gia hai mt ct th i v th i+1.

Khi lng no vt tng cng l tng tt ccc khi lng gia cc mt ct.

Tsliu bnh a hnh khu vc no vt, phm vi no vt c thit ktrn mtbng, cao trnh y v mi dc no vt c tnh ton la chn tnh c dintch no vt cho tng mt ct ngang.

III.3.4.4Khi lng no vt

Tng khi lng no vt: 17,412 m3

III.3.4.5

Sai s no vt

Khi lng no vt trn chl dkin, cha bao gm cc sai sno vt. n v thicng phi m bo no vt lung tu, khu nc trc bn v vng quay tun cao t yu cu nh trong hs thit k.

III.3.4.6

Quy hoch v tr t ct no vt

Nh thu st no vt ti vtr c c quan qun l quy nh.


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CHNG IV.TNH TON KIMTRA CC HNG MCCNG TRNH

IV.1.Tnh ton kim tra hng mc cu dn

IV.1.1.Phng php phn tch kt cu

IV.1.1.1

Gii thiu

S dngphn mm Sap 2000 xc nh ni lc trong kt cu. Kt cu bn c m

phng bng m hnh 3D s dng cc phn t thanh, tm v, solid mphng dm,

cc, iv bn mt cu.

Kt cu bn c phn tch thng qua m hnh 3 chiu gm cc phn t thanh, phn t

solid, phn t tm v m phngc ton b h thng dm, bn, i trn nn cc,chu tc dng ca t hp cc lc thng ng v lc ngang. Nn cc c nh ngha l

phn t thanh c mt u lin kt ngm cng vo h thng dm tr, u cn li c

gn lin kt ngm trt. nh hng ca t nn di mi cc v chiu di cc c

nh ngha bng lin kt l xo theo phng thng ng mi cc.

Vic m phng v phn tch kt cu c thc hin bng phn mm SAP 2000 phin

bn 12.1.

Ni lc ca mi cu kin xut ra t phn mm SAP c kim tra, tnh ton vi ccgi tr ln nht c th chc chn rng cc gi tr ny khng vt qu cc gii hn

cho php. Trong tnh ton kim tra bn, cc ph hoi cc b cng c tin hnh tnh

ton kim tra.

IV.1.1.2

Cc thng s m phng nn cc

Phng php m phng s thc sang s tnh ton phn tch kt cu cho tronghnhdi y:

Hnh IV-1. Phng php m phng s thc sang s tnh ton

S tnh ton chiu di chu un Luca cc c th hin trong hnh sau:


42/85



Hnh IV-2. Xc nh v tr ngm gi nh

* Chiu di chu un ca cc

Do cc ngm trong t do chiu di tnh ton LU ca cc sc xc nh theoTCVN 205:1998 - Tiu chun thit kmng cc.

Trong :

L0- chiu di tdo ca cc, m.

bd - hs, 1/m,

K - hsphthuc loi t, T/m4

bc- brng tnh ton ca cc, bc= 1.5d+0.5m.

Eb- modun n hi ca cc, T/m2

I - momen qun tnh ca cc, m4 44 .2DD64

I

D - ng knh ngoi ca cc tit din trn, m.

- Chiu dy thnh cc tit din trn, m.

IV.1.1.3 cng l xo theo phng trc cc

cng l xo theo phng trc cc c gn cho tng cc ti v tr ngm gi nhnhm m phng cng ca phn chiu di cc nm bn di im ngm gi nh.

cng l xo theo phng trc cc c tnh theo cng thc sau:

L

EAK

pp

V

Trong :

AP: Din tch mt ct ngang ca cc (m).

EP: M un n hi ca vt liu cc (kN/m).

L : Khong cch gia im ngm gi nh v mi cc.


43/85



IV.1.1.4Phn mm phn tch kt

Phn mm SAP2000 c s dng phn tch kt cu. Kt qu xut ra t phn mm

bao gm cc thnh phn sau:

Chuyn v nt:U1 Chuyn v ngang theo phng trc 1 ca phn t

U2 Chuyn v ngang theo phng trc 2 ca phn t

U3 Chuyn v ngang theo phng trc 3 ca phn t

R1 Chuyn v xoay quanh trc 1 ca phn t



Kt qu xut ra bao gm: chuyn v nt, phn lc gi, ni lc ca cc phn t.

n v tnh:

ng sut: [kN/m2]

Lc dc trc: [kN]

Lc ct: [kN]

Moment: [kN.m]

Ni lc ca phn t thanh:P Lc dc trc(kN)

P0 Lc ko

V2 Lc ct trong mt phng1-2 (kN)

V3 Lc ct trong mt phng1-3 (kN)

T Momen xon (kN.m)

M2 Momen un quanh trc 2 ca phn t (kN.m)

M3 Momen un quanh trc 3 ca phn t (kN.m)

Ni lc ca phn t tm v:

F11, F22 Lc ct tm(kN)

F12 Lc ct tm(kN)

M11, M22 Momen un(kN.m)


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M12 Momen xon(kN.m)

V13, V23 Lc ct(kN)

IV.1.1.5Ti trng v k hiu ti trng

K hiu cc ti trng tc dng ln bn c thhin trong bng sau.

BngIV-1: Ti trng, k hiu ti trng trong phn tch kt cu

STT Trng hp ti K hiu

1 TNH TI

Trng lng bn thn SW

2

HOT TI

Hot ti phn bu trn mt sn

+, Hot ti cht y mt sn CG1

+, Hot ti cht mt na mt n CG2

+, Hot ti cht cch nhp theo phng ngang CG3

+, Hot ti cht cch nhp theo phng dc CG4

3

TI TRNG DO MI TRNG

Ti trng do dng chy

+, Ti trng tc ng do dng chy theo phng ngang CLL

+, Ti trng tc ng do dng chy theo phng dc CLT

Ti trng do gi

+, Ti trng tc ng do gi theo phng ngang WLT

+, Ti trng tc ng do gi theo phng dc WLL

Ti trng do thay i nhit

+, Nhit tng v trn mt ln hn bn di +TM

+, Nhit gim v trn mt nhhn bn di -TM


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IV.1.1.6T hp ti trng tnh ton

BngIV-2:Bng t hp ti trng tnh ton

T hpTnh ti Hot ti phn b trn mt cu

Ti trng do mi trng

Dng chy gi Nhit

SW CG1 CG2 CG3 CG4 CLL CLT WLL WLT +TM -TM

Combo1 1.000 0.900 0.900 0.900Combo2 1.000 0.900 0.900 0.900 0.900

Combo3 1.000 0.900 0.900 0.900 0.900

Combo4 1.000 0.900 0.900 0.900 0.900

Combo5 1.000 0.900 0.900 0.900 0.900

Combo6 1.000 0.900 0.900 0.900

Combo7 1.000 0.900 0.900 0.900 0.900

Combo8 1.000 0.900 0.900 0.900 0.900

Combo9 1.000 0.900 0.900 0.900 0.900

Combo10 1.000 0.900 0.900 0.900 0.900

Combo11 1.000 0.900 0.900 0.900Combo12 1.000 0.900 0.900 0.900 0.900

Combo13 1.000 0.900 0.900 0.900 0.900

Combo14 1.000 0.900 0.900 0.900 0.900

Combo15 1.000 0.900 0.900 0.900 0.900

Combo16 1.000 0.900 0.900 0.900


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T hpTnh ti Hot ti phn b trn mt cu

Ti trng do mi trng

Dng chy gi Nhit

SW CG1 CG2 CG3 CG4 CLL CLT WLL WLT +TM -TM

Combo17 1.000 0.900 0.900 0.900 0.900

Combo18 1.000 0.900 0.900 0.900 0.900

Combo19 1.000 0.900 0.900 0.900 0.900

Combo20 1.000 0.900 0.900 0.900 0.900


47/85



IV.1.1.7Quy nh v vt liu

Cc quy nh vvt liu sdng cho phn tch kt cu cho trong bng sau:

BngIV-3: Quy nh v vt liu s dng trong phn tch kt cu

Vt liu n v B tng M300M un n hi kN/m2 2.90E+07

Trng lng ring kN/m3 24.5

HsPoisson 0.20

Hsgin nnhit 1.1E-05

- i vi cc do lm vic trong mi trng c mc nc thay i v chu stcng ln ca mi trng, v vy b tng sdng cho cc loi M300.

- B tng sdng cho hthng dm bn loi M300.

IV.1.1.8

Phn tch kt cu

a.M hnh tnh ton:

M hnh tnh ton cu chnh bn than c thhin trong hnh sau:

Hnh IV-3. M hnh tnh ton kt cu cu dn


48/85



b.

Cc thng stnh ton:

Chiu di chu un v cng l xo u cc:

BngIV-4: Chiu di un v cng l xo u cc cu dn

Hngmc

Hngcc

Loi cc Chiudi cc(m)

Chiudi tdo(m)

Chiu diun Lu(m)

cng lxo Kv(kN/m)

Cudn

1 45x45cm 38 8.50 11.60 880,670.25

2 45x45cm 38 8.35 11.45 865,025.30

3 45x45cm 38 8.30 11.30 855,505.10

4 45x45cm 38 8.20 11.20 830,060.40

5 45x45cm 38 8.10 11.10 820,450.70

c trng tit din phn t:

Cc c trng vtit din ca cc phn ttrong m hnh tnh ton cho trong bng sau:

BngIV-5:c trng tit din cc phn t cu dn

Tit din Cc thng s

Hthng dm

Loi dm: Dm ngang

Tn dm: D.NGANG

Kch thc:

Chiu rng: b = 500 mmChiu cao: h = 700 mmDin tch: A = 3.500E+05 mm2Momen qun tnh tit din: Ix= 1.429E+10 mm

4

Iy= 7.292E+09 mm4

Loi dm: Dm dcTn dm: D.DOC

Kch thc:Chiu rng: b = 500 mmChiu cao: h = 700 mmDin tch: A = 3.500E+05 mm2Momen qun tnh tit din: Ix= 1.429E+10 mm4

Iy= 7.292E+09 mm4

Nn cc

Cc BTCT 45x45cmTn cc: 45x45cm

Kch thc:Chiu rng: b = 450 mmChiu cao: h = 450 mmDin tch: A = 2.025E+05 mm2Momen qun tnh tit din: I

x= 3.417E+09 mm4

Iy= 3.417E+09 mm4


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Tit din Cc thng s

Bn sn

Bn mt cu dy 250 mmTn bn: BAN

Chiu dy: t = 250 mm

c.Kt qutnh ton:

BngIV-6. Tng hp ni lc ccBTCT45x45cmCu dn

Frame Station OutputCase P V2 V3 M2 M3

Text m Text KN KN KN KN-m KN-mPmax 42 0.00 COMBO-04 -57.75 -2.52 0.49 1.72 -13.72

Pmin 28 0.00 COMBO-03 -214.87 4.33 0.43 2.14 22.27

V2max 26 0.00 COMBO-05 -210.86 7.60 -0.60 -3.02 28.66V2min 39 0.00 COMBO-02 -69.00 -8.48 -0.47 -2.38 -34.92

V3max 32 0.00 COMBO-03 -178.10 4.11 3.67 8.13 20.91

V3min 25 0.00 COMBO-05 -176.45 -0.18 -8.29 -33.93 -0.91

M2max 23 10.82 COMBO-05 -165.74 0.09 -8.01 29.08 -0.50M2min 21 0.00 COMBO-05 -165.26 0.30 -7.74 -34.08 1.72

M3max 38 10.84 COMBO-02 -69.32 -8.19 -0.23 1.19 30.05

M3min 37 0.00 COMBO-02 -69.58 -5.72 -0.03 -0.28 -35.06

BngIV-7. Tng hp ni lc dm ngangCu dn

Frame Station OutputCase P V2 V3 M2 M3Text m Text KN KN KN KN-m KN-m

Pmax 463 0.00 COMBO-04 2.05 9.59 -0.31 0.12 -0.70

Pmin 443 0.00 COMBO-02 -24.89 4.34 -1.11 -4.49 23.49

V2max 442 1.20 COMBO-06 -15.80 69.07 0.75 -0.95 -8.34

V2min 456 0.00 COMBO-02 -14.22 -61.81 0.37 0.34 2.31

V3max 466 0.00 COMBO-02 -13.81 41.28 3.34 -0.73 58.30

V3min 468 0.00 COMBO-02 -20.24 8.36 -4.79 -11.45 9.54

M2max 467 0.00 COMBO-05 -13.83 -15.39 2.39 7.05 -1.64

M2min 467 0.00 COMBO-02 -20.24 -4.79 -4.79 -16.23 11.33M3max 401 0.40 COMBO-02 -11.47 -0.30 -0.09 -0.09 79.53

M3min 429 1.00 COMBO-02 -23.52 44.98 0.46 -0.72 -48.90

BngIV-8. Tng hp ni lc dm dcCu dn


Text m Text KN KN KN KN-m KN-m

Pmax 513 0.00 COMBO-07 15.02 -11.63 -0.06 -0.62 23.99

Pmin 512 0.00 COMBO-04 -25.98 -40.43 2.16 2.66 -41.17

V2max 478 1.40 COMBO-06 2.42 74.10 1.26 -1.35 -53.68

V2min 500 0.00 COMBO-08 0.23 -72.69 -0.89 -0.90 -43.07V3max 503 0.00 COMBO-02 -12.25 -59.13 4.77 6.13 -43.51


50/85




Text m Text KN KN KN KN-m KN-m

V3min 473 0.00 COMBO-07 -0.74 11.08 -2.37 0.18 -0.61

M2max 503 0.00 COMBO-02 -12.25 -59.13 4.77 6.13 -43.51

M2min 473 1.10 COMBO-02 -0.86 22.91 2.79 -3.59 -17.95

M3max 501 1.40 COMBO-08 -0.17 1.44 -0.01 0.33 60.85

M3min 481 1.40 COMBO-06 5.88 69.76 1.07 -1.09 -62.37

BngIV-9. Tng hp ni lc bn snCu dn

Area AreaElem ShellType M11 M22 Vmax

Text Text Text KN/m Degrees KN/m

M1max 121 21 COMBO-05 15.45 12.17 0.93

M1min 166 66 COMBO-02 -17.23 -7.14 17.61

M2max 181 81 COMBO-02 -5.19 16.83 19.13

M2min 169 69 COMBO-04 -12.44 -12.45 22.49

Vmax 208 108 COMBO-06 -12.67 -8.78 28.94

BngIV-10. Tng hp tnh chuyn vntCu dn

Joint OutputCase U1 U2 U3 R1 R2 R3

Text Text m m m Radians Radians Radians

UXmax 31 COMBO-08 0.0148 0.0051 -0.0003 0.0000 0.0002 -0.0001

UXmin 31 COMBO-06 -0.0139 -0.0048 -0.0003 0.0000 0.0000 0.0001

UYmax 31 COMBO-02 0.0030 0.0168 -0.0004 -0.0001 0.0001 -0.0002UYmin 31 COMBO-06 -0.0030 -0.0165 -0.0002 0.0001 0.0001 0.0002

UZmax 31 COMBO-01 0.0030 0.0163 -0.0001 -0.0001 0.0001 -0.0002

UZmin 31 COMBO-04 -0.0030 -0.0161 -0.0003 0.0001 0.0001 0.0002

RXmax 35 COMBO-02 -0.0035 -0.0151 -0.0003 0.0001 0.0000 0.0002RXmin 33 COMBO-01 0.0040 0.0152 -0.0003 -0.0001 0.0000 -0.0002

RYmax 31 COMBO-04 0.0136 0.0051 -0.0003 0.0000 0.0001 -0.0001

RYmin 53 COMBO-07 -0.0130 -0.0027 -0.0002 0.0000 -0.0001 0.0001RZmax 53 COMBO-07 -0.0023 -0.0080 -0.0002 0.0000 -0.0001 0.0001

RZmin 53 COMBO-02 0.0023 0.0082 -0.0002 -0.0001 0.0000 -0.0001

IV.1.2.Tnh ton ni lc cc trong trng hp cu lp

IV.1.2.1Kim tra cc trong trng hp vn chuyn

m bo iu kin chu lc tt nht khi vn chuyn th vtr mc cu c btrsao cho tr smomen dng ln nht bng tr smomen m ln nht. Tiu kinny ta xc nh c:

a = 0,207L (m)

Ma= 0,043qL2

(kN.m)Vi: LChiu di cc, m.


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qTi trng phn bu do trng lng bn thn cc, kN/m

IV.1.2.2

Kim tra cc trong trng hp treo cc ln gi ba

Khi cc c chiu di L > 8m cn btr them mc cu th3, khi thi cng treo ccln gi ba Tiu kin ny ta xc nh c:

b = 0,294L (m)

Mb= 0,086qL2 (kN.m)

Vi: LChiu di cc, m.

qTi trng phn bu do trng lng bn thn cc, KN/m

IV.1.3.Thit k b tng ct thp hng mc cu dn

Tkt qu tnh ton ni lc ca cc cu kin c trnh by trong mc trn, ta tinhnh tnh ton kt cu b tng ct thp cho cc cu kin. Trong tnh ton ny, ta tnhton cho hai nhm trng thi gii hn:


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- Theo Nhm I cc trng thi gii hn (vmt khnng chu lc hoc khng cn sdng c). Vi Nhm ny, ni lc tnh ton c ly tbiu bao ni lc cacc trng hp ti v nhn vi cc hstheo quy nh ca 22 TCN 207-92.

- Theo Nhm II cc trng thi gii hn (vbin dng v chng nt). Vi Nhmny, ni lc tnh ton c ly tbiu bao ni lc ca cc trng hp ti c bnv nhn vi cc hstheo quy nh ca 22 TCN 207-92.

IV.1.3.1iu kin tnh ton

- Tnh ton cho trng thi gii hn I

Thp AII:

Ratt = Rac

tt = 2700 Kg/cm2

E = 2.1 x 106Kg/cm2

B tng mc 300:E = 2.9 x 105Kg/cm2

Rk= 10 Kg/cm2

Rnp = 135 Kg/cm2

- Tnh ton cho trng thi gii hn II

Thp AII:

Ratt = Rac

tt = 3000 Kg/cm2

E = 2.1 x 106

Kg/cm2

B tng mc 300:

E = 2.9 x 105Kg/cm2

Rk= 15 Kg/cm2

Rnp= 170 Kg/cm2

- Brng vt nt cho php: [at] = 0.08 (mm)

- Ni lc tnh ton ca cc cu kin B tng ct thp

* Ni lc tnh ton c kim tra theo trng thi gii hn th1 theo 22 TCN 207-92

- Ni lc tnh ton

SI = kn. nc. n. md. S

kn: hscp cng trnh, cng trnh cp III ly kn= 1.15

nc: hsthp ti trng ly nc= 1.0 vi thp c bn

nc=0,9 i vi thp c bit

n: hsvt ti, ly n = 1.25

md: hsphthuc iu kin lm vic, ly md= 0.9


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S: Ni lc qua tnh ton kt cu.

IV.1.3.2

Kim tra cu kin BTCT theo iu kingii hn I

Phng php tnh l chn trc hm lng ct thp, vi lng ct thp chn kimtra li khnng chu lc ca cu kin

- Kim tra hm lng ct thp

min< tt< max

Trong :

- min : hm lng ct thp nhnht ca ct thp, min=0,1%

- tt : hm lng ct thp thit k.

- tt : hm lng ct thp ln nht,

a

no

R

Rmax

- Kim tra iu kin khnng chu lc.

Mttmax < Mgh

)ah(FRbhARM 'o'a

'a

2ongh

Vi

)5.01(A oo

o: phthuc vo mc btng v cng ct thp o = 0.58.

IV.1.3.3

Thit k btct cho cc phn t thanh v tm bn

Kim tra khnng chu ct ca dm:

Trn c stnh ton ct thp dm tiu kin hnh thnh vt nt, tin hnh kim trali khnng chu lc ca dm vi hm lng ct thp tnh ton c trn, theo 2iu kin:

m bo btng khng bph hoi do ng sut nn chnh

iu kin 1:

03max ....25.0 hbRmQ nbtt

Trong :ttQmax : Lc ct tnh ton

mb3: Hsiu kin lm vic ly mb3 = 1.15 vi dm c H > 60cm

Rn: Cng chu nn ca b tng

b: Chiu rng dm

h0: Chiu cao vng lm vic ca ct thpKhng phi tnh ct thp ngang v xin khi thomn iu kin.


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iu kin 2: bbtt QmQ .

3max

Trong :

Qb- Lc ct ca b tng vng chu nn trong mt ct nghing.

Qb= k.Rk.b.ho.tg /1.2Vi: - k: hs, ly k = 0.5+2

- : Chiu cao tng i ca vng chu nn trong mt ct, =n

a

o

a

R

R

hb

F

.

- : gc gia mt ct nghing v trc dc cu kin, tg =

ohQ

M

.1

2

- Q, M: lc ct v m men un tng ng mt ct thng gc i qua im

cui mt ct nghing

Kim tra khnng chc thng ca bn:

Khnng chc thng ca bn sn c xc nh theo cng thc:

kn.nc.n.P < mb.Rp.btb.ho

Vi:

PLc p lm, T.

h0Chiu cao lm vic ca tit din, m.

Kim tra cu kin BTCT theo iu kin gii hn I I :

Cng thc tnh mrng vt nt ca cc cu kin b tng thy cng:

at k Cd a

Ea. . . . .( )7 4 100

Trong :

k: Hsi vi cu kin chu nn un lch tm, ly k=1, khi t ct thp nhiulp ly k=1.2

Cd: Hskhi tnh vi ti trng ngn hn ly Cd = 1, ti trng thng xuyn vti tm thi di hn ly Cd = 1.3

: Hs, vi thp gly = 1, thp trn ly = 1.4

a: ng sut trong ct thp chu ko (Kg/cm2)

Ea: Mduyn n hi ca thp (Kg/cm2).

: Hm lng ct thp ca mt ct

: ng knh thanh thp (mm).


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IV.1.3.4Kt qu tnh ton

BngIV-11.Kt qu tnh ton kim tra ct thp dm ngang, dm dcCu dn

H dm sn cu dnDm ngang Dm dc

Gi Bng Gi BngbB rng mt ct cu kin kim tra, (cm) 50 50 50 50

h - Chiu cao mt ct cu kin kim tra, (cm) 70 70 70 70

ho- Chiu cao tnh ton bn, (cm) 62.25 60.75 60.75 59.25

a - Chiu dy lp BT bo v ct thp, (cm) 6.50 8.00 8.00 9.50

M - M men tnh ton, (KG.cm) 632,661 1,028,978 806,975 787,300

- ng knh ct thp chu lc, (mm) 25 25 25 25

fa- Din tch ca mt thanh thp, (cm) 4.909 4.909 4.909 4.909

n1- S thanh thp lp th nht, (thanh) 5 5 5 5n2- S thanh thp lp th hai, (thanh) 0 0 0 0

Fa- Din tch thp ton b, (cm) 24.54 24.54 24.54 24.54

a1- Khong cch n lp th nht, (cm) 7.75 9.25 9.25 10.75

a2- Khong cch n lp th hai, (cm) 17.75 19.25 19.25 20.75

a0- Khong cch n trng tm ct thp, (cm) 7.75 9.25 9.25 10.75

- Hm lng ct thp, (%) 0.789 0.808 0.808 0.828

nh gi hm lng ct thp OK OK OK OKx - Chiu cao vng b tng chu nn, (cm) 7.36 7.36 7.36 7.36

nh gi chiu cao vng b tng chu nn OK OK OK OK

z - Cnh tay n, (cm) 58.57 57.07 57.07 55.57

a- ng sut trong ct thp, (kG/cm) 440.12 734.63 576.13 577.26

nh gi ng sut trong ct thp OK OK OK OKk - H s, i vi cu kin chu nn un lchtm

1.00 1.00 1.00 1.00

Cd- H s ty thuc vo loi ti trng tnh ton 1.30 1.30 1.30 1.30 - H s ty thuc vo loi thp s dng 1.00 1.00 1.00 1.00

at- B rng vt nt, (mm) 0.031 0.051 0.040 0.040

[at] - B rng vt nt cho php, (mm) 0.08 0.08 0.08 0.08

nh gi b rng vt nt cu kin OK OK OK OK

Kim tra kh nng chu ct Dm ngang Dm dc

Q - Lc ct tng ng mt ct thng gc 8935.931 9586.688

kn - H s cp cng trnh 1.15 1.15

nc- H s t hp ti trng 1.00 1.00


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H dm sn cu dnDm ngang Dm dc

Gi Bng Gi Bng

mb3- H s iu kin lm vic 1.20 1.20

nh gi kh nng chu ct theo iu kin 1 Tha mn Tha mn

Qb- Lc ct ca b tng vng chu nn 134856.076 120388.909

k - H s, ly k = 0,5+2 3.37 3.44

- Chiu cao tng i ca vng chu nn 1.43 1.47

tag( - Gc gia mt ct nghing v trc dc 0.94 0.84

nh gi kh nng chu ct theo iu kin 2 Tha mn Tha mn

BngIV-12.Kt qu tnh ton kim tra ct thp bn snCu dn

Bn sn nh chMomen M11 Momen M22

Gi Bng Gi BngbB rng mt ct cu kin kim tra, (cm) 100 100 100 100h - Chiu cao mt ct cu kin kim tra, (cm) 25 25 25 25

ho- Chiu cao tnh ton bn, (cm) 19.30 19.30 19.30 19.30

a - Chiu dy lp BT bo v ct thp, (cm) 5.00 5.00 5.00 5.00

Mmax- M men tnh ton, (KG.cm) 222962 199842 161116 217760

- ng knh ct thp chu lc, (mm) 14 14 14 14

fa- Din tch ca mt thanh thp, (cm) 1.539 1.539 1.539 1.539

n1- S thanh thp lp th nht, (thanh) 7 7 7 7

n2- S thanh thp lp th hai, (thanh) 0 0 0 0

Fa- Din tch thp ton b, (cm) 10.78 10.78 10.78 10.78

a1- Khong cch n lp th nht, (cm) 5.70 5.70 5.70 5.70

a2- Khong cch n lp th hai, (cm) 7.10 7.10 7.10 7.10

a0- Khong cch n trng tm ct thp, (cm) 5.70 5.70 5.70 5.70

- Hm lngct thp, (%) 0.558 0.558 0.558 0.56nh gi hm lng ct thp OK OK OK OKx - Chiu cao vng b tng chu nn, (cm) 1.62 1.62 1.62 1.62

nh gi chiu cao vng b tng chu nn OK OK OK OKz - Cnh tay n, (cm) 18.49 18.49 18.49 18.49

a- ng sut trong ct thp, (kG/cm) 1118.94 1002.91 808.57 1092.83

nh gi ng sut trong ct thp OK OK OK OKk - H s, i vi cu kin chu nn un lchtm

1.00 1.00 1.00 1.00

Cd- H s ty thuc vo loi ti trng tnhton

1.30 1.30 1.30 1.30

- H s ty thuc vo loi thp s dng 1.00 1.00 1.00 1.00

at- B rng vt nt, (mm) 0.062 0.056 0.045 0.061[at] - B rng vt nt cho php, (mm) 0.08 0.08 0.08 0.08


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Bn sn nh chMomen M11 Momen M22

Gi Bng Gi Bngnh gi b rng vt nt cu kin OK OK OK OKKim tra kh chc thng Bn sn cu dnP - Lc nn p lm (KN) 3744

- H s ty thuc vo b tng s dng 0.85

Um - gi tr trung bnh chu vi y trn v ydi, (cm)

60.63

nh gi kh nng chc thng bn OKKim tra kh nng chu ct Bn sn cu dnQ - Lc ct tng ng mt ct thng gc(KN)

3743.967

kn - H s cp cng trnh 1.15

nc- H s t hp ti trng 1.00

mb3- H s iu kin lm vic 1.20

nh gi kh nng chu ct theo iu kin 1 Tha mn

Qb- Lc ct ca b tng vng chu nn 35412.861

k - H s, ly k = 0,5+2 0.67 - Chiu cao tng i ca vng chu nn,(cm)

0.08

tag( - Gc gia mt ct nghing v trcdc

2.00


BngIV-13.Kt qu tnh ton kim tra ct thp cc 45x45cmKhai thc

CC BTCT 45x45CM Trng hp khai thc

bB rng mt ct cu kin kim tra, (cm) 45.00

h - Chiu cao mt ct cu kin kim tra, (cm) 45.00

ho- Chiu cao tnh ton bn, (cm) 37.20

a - Chiu dy lp BT bo v ct thp, (cm) 5.00

Mmax- M men tnh ton ln nht, (KG.cm) 453,596

- ng knh ct thp chu lc, (mm) 16fa- Din tch ca mt thanh thp, (cm) 2.011

n1- S thanh thp lp th nht, (thanh) 4

n2- S thanh thp lp th hai, (thanh) 2

Fa- Din tch thp ton b, (cm) 12.06

a1- Khong cch n lp th nht, (cm) 5.80

a2- Khong cch n lp th hai, (cm) 11.80

a0- Khong cch n trng tm ct thp, (cm) 7.80

- Hm lng ct thp, (%) 0.721nh gi hm lng ct thp OK


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CC BTCT 45x45CM Trng hp khai thc

x - Chiu cao vng b tng chu nn, (cm) 3.57nh gi chiu cao vng b tng chu nn OKz - Cnh tay n, (cm) 35.41

a- ng sut trong ct thp, (kG/cm) 1061.77

nh gi ng sut trong ct thp OKk - H s, i vi cu kin chu nn un lch tm 1.00

Cd- Hs ty thuc vo loi ti trng tnh ton 1.30

- H s ty thuc vo loi thp s dng 1.00

at- B rng vt nt, (mm) 0.060

[at] - B rng vt nt cho php, (mm) 0.08

nh gi b rng vt nt cu kin OK

Kim tra kh nng chu ct Cc 35x35cmQ - Lc ct tng ng mt ct thng gc 10.971



mb3- H s iu kin lm vic 1.20



k - H s, ly k = 0,5+2 2.902

- Chiu cao tng i ca vng chu nn 1.201tag( - Gc gia mt ct nghing v trc dc 0.002nh gi kh nng chu ct theo iu kin 2 OK

BngIV-14.Kt qu tnh ton kim tra ct thp cc 45x45cmCu lp

CC BTCT 45x45CM Trng hp cu lp

bB rng mt ct cu kin kim tra, (cm) 45.00h - Chiu cao mt ct cu kin kim tra, (cm) 45.00

ho- Chiu cao tnh ton bn, (cm) 36.75

a - Chiu dy lp BT bo v ct thp, (cm) 5.00L - Chiu di cc tnh ton, (m) 20.00qTi trng phn b u do trng lng bn thn cc, KN/m 4.87

Mmax- M men tnh ton ln nht, (KG.cm) 1,506,819

- ng knh ct thp chu lc, (mm) 25

fa- Din tch ca mt thanh thp, (cm) 4.909

n1- S thanh thp lp th nht, (thanh) 4

n2- S thanh thp lp th hai, (thanh) 2

Fa- Din tch thp ton b, (cm) 29.45a1- Khong cch n lp th nht, (cm) 6.25


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CC BTCT 45x45CM Trng hp cu lp

a2- Khong cch n lp th hai, (cm) 12.25

a0- Khong cch n trng tm ct thp, (cm) 8.25

- Hm lng ct thp, (%) 1.781nh gi hm lng ct thp OKx - Chiu cao vng b tng chu nn, (cm) 9.82nh gi chiu cao vng b tng chu nn OKz - Cnh tay n, (cm) 31.84

a- ng sut trong ct thp, (kG/cm) 1606.75

nh gi ng sut trong ct thp OKk - H s, i vi cu kin chu nn un lch tm 1.00

Cd- H s ty thuc vo loi ti trng tnh ton 1.30

- H s ty thuc vo loi thp s dng 1.00at- B rng vt nt, (mm) 0.077

[at] - B rng vt nt cho php, (mm) 0.08

nh gi b rng vt nt cu kin OKKim tra kh nng chu ct Cc 45x45cmQ - Lc ct tng ng mt ct thng gc 7728.774



mb3- H s iu kinlm vic 1.20nh gi kh nng chu ct theo iu kin 1 Tha mn


k - H s, ly k = 0,5+2 6.98 - Chiu cao tng i ca vng chu nn 3.24

tag( - Gc gia mt ct nghing v trc dc 0.32nh gi kh nng chu ct theo iu kin 2 OK

IV.1.3.5

Bng tng hp b tr ct thp

Phn btr ct thp cho cc cu kin c tm tt trong bng sau:BngIV-15.B tr ct thp cho cc cu kin

Hng mc Cu kinBtr ct thp

Ct thp di Ct thp trn Ct ai

Cu dn

Dm ngang

500x700Lp 1: 525 Lp 5: 525 10@200

Dm dc

500x700 Lp 1: 525 Lp 5: 525 10@200


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Hng mc Cu kinBtr ct thp

Ct thp di Ct thp trn Ct ai

Bn sn 250 14@150 14@150 -

IV.1.3.6

Kim sot vng

vng ca cu kin c kim tra nhm khng vt qu gi trcho php.

Theo BS 81101: 1997, i vi tit din chnht, khng cn kim tra vng cacc cu kin khi tschiu di nhp / chiu cao hu hiu ca tit din nhhn gi tr

cho trong bng sau:

BngIV-16. T s chiu di nhp / chiu cao hu hiu

Tnh trng lin kt Ts

Cng xn 7

Gi 20

Dm bn lin tc 26

Cc cu kin dm bn ca kt cu bn v cu dn c dng lin tc, do khng cnkim tra vng ca cc cu kin ny nu tschiu di nhp / chiu cao hu hiu

nhhn 26. Kt qutnh ton c trnh by trong bng sau:

BngIV-17.Bng tnh ton t s chiu di nhp / chiu cao hu hiu

Hng mc DmChiu di

nhp l (m)

Chiu cao

hu hiu d (m)

Hs

l/dKt lun

Cu dn

Dm ngang 1.10 0.623 1.77 Khngcn kim

tra vng

Dm dc 4.50 0.623 7.22

Bn cu dn 4.50 0.193 23.32

IV.1.4.Kim tra sc chu ti ca cc theo t nn

IV.1.4.1Sc chu ti nn

QTC= m.(mR.qp.Fa+u. mf.fi.li)

Trong :

Cc hsm, mR, mf c tra theo bng A.3.

m - Hsiu kin lm vic ca cc trong t, m = 1

mR& mf- Hsiu kin lm vic ca t ti mi cc v mt hng cc,

mR=1; mf =0.8


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fiMa st bn ca lp t thi mt bn thn cc (T/m2), theo bng A.2. i

vi lp gc fic xc nh theo cng thc: fi= . .quc (Trong l hs chit gim, ph thuc Qu(Williams & Pells), l h s hiu chnh ph thucvo vt nt trong khi ).

Fa- Din tch chng ca cc ln t (m2)

qp- Sc chu ti mi cc, qp= 0.75..( I.dp.Ak + . I.L.Bk)

IV.1.4.2Sc chu ti nh

QTC= m.u. mf.fi.li

Cc hsm = 0.8, mf= 1 tra theo bng 3

IV.1.4.3Sc chu ti tnh ton

Nn=S

TC

F

Q

FSHstin cy

IV.1.4.4

Kt qu tnh ton

Trong phn ny strnh by kt qutnh ton sc chu ti ca cc theo t nn v hsan ton da trn chiu di c lng ca cc.

BngIV-18:H s an ton cho kh nng chu ti ca cc

CcSc chu ti cc hn

(kN)Kt qutnhton nn/nh

(kN)

Hsan ton Chiudi cc

(m)Nn Nh Nn Nh

Cu dn 1371.912 795.820 -214.90 4.73 - 38

(Chiu di cc c quyt nh bi thc tthi cng ti cng trng).


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BngIV-19:Kt qu kim tra sc chu ti ca cc theo t nn

Tiu chun kim tra: TCXD205-1998 - Mng cc tiu chun thit k

STTCao

(m) su

(m)Lcc(m)

Lpt

H sm

H smR

H smf u (m)

Fa(m2)

qp(KN/m2)

H s ma st fi(KN/m2) li (m)

mR.qp.Fa(KN)

u. mf.fi.li(KN)

1 -1.40 0.00 3.30

Lp1

1.00 0.000 0.00 0.00

2 -5.40 4.00 7.30 1.00 5.768 4.00 23.07

3

Tmkt Ben Phu Xuan Phuoc Khanh

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Transcript of Tmkt Ben Phu Xuan Phuoc Khanh