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CC VN B TNG D NG LC- TNH NNG V PHM VI NG DNG


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Cc vn b tng d ng lc s dng cho cc cng trnh k bo v b ao, h, sng, bin, knh dn nc S dng phng php ng bng ba rung kt hp xi nc p lc cao, ba diezel kiu ng, ba rung va p, .v.v...

Cc vn b tng d ng lc s dng trong cc cng trnh tng chn t trn cc trc giao thng, nh cao tng, p ngn mn, quy ln bin, bn cng, .v.v...

Tnh nng

Cc vn b tng d ng lc l mt sn phm c c s dng rt ph bin trong nhng nm gn y. c thit k vi tit din c bit nn cc vn b tng d ng lc c nhng tnh nng u vit sau:

Cht lng c kim sot cht ch, ng u nh sn xut theo quy trnh cng ngh tin tin ca cng ty c phn s hu Thin Tn p dng tiu chun Nht Bn JIS A 5373.

Kh nng chng g v n mn cao p ng c yu cu k thut cho cc kt cu cng trnh trn bin v mi trng xm thc ha cht khc nghit.

Kh nng khng nn, khng un cao.

Kh nng chng nt, chng thm, ngn ct chy rt tt.

Thi cng h cc d dng v ph hp vi nhiu iu kin a cht khc nhau.

C gi tr thm m cao, rt ph hp cho vic chnh trang th, cnh quan ven sng, ven bin.

Phm vi p dng

Hin nay, cc gii php cng ngh trong xy dng lun lun c ci tin v pht trin. Vic s dng cc vn b tng ct thp d ng lc l mt ng dng cng ngh rt hin i ti Vit Nam. Vi nhng tnh nng u vit trn, cc vn b tng d ng lc c ng dng trong rt nhiu cc cng trnh xy dng: K bo v b h, sng, bin v cc cng trnh bn cng, cng trnh chnh tr, quy, p ngn mn, vch tng hm nh cao tng, .v.v. (minh ha bng mt s hnh nh thc t trn).

YU CU K THUT CHUNG CA CC VN B TNG D NG LC






Tiu chun p dngCc vn b tng d ng lc do Cng ty C phn S hu Thin Tn sn xut tha mn tiu chun Nht Bn: JIS A 5373 Precast Prestressed Concrete Products.Vt liu s dng sn xutCt liu:

Ct liu th: dm ph hp vi tiu chun ASTM C33 hoc tiu chun tng ng.Ct liu mn: Ct thin nhin, ct nghin hay kt hp gia ct thin nhin v ct nghin ph hp vi tiu chun ASTM C33 hoc tiu chun tng ng.

Xi mng: Xi mng Pooclng hn hp PCB 40 tr ln. Yu cu k thut ph hp vi tiu chun TCVN6260-2009 hoc tiu chun tng ng.Ph gia: Cc loi ph gia s dng c chng ch k thut c cc c quan qun l Nh nc cng nhn, ph hp tiu chun ASTM C494.Thp ng sut trc:

Ph hp vi tiu chun ASTM A416, JIS G3137.Ct thp thng: Ph hp vi tiu chun JIS G3112 hoc tng ng.

Cng b tng: Thit k: ti thiu 60Mpa mu tr 15x30 cm.Khi to d ng lc: ti thiu t 35Mpa.

Bo dng sn phm: B tng c bo dng n khi t cng quy nh.Chiu di cc: Cc c thit k c chiu di t 3m n 28mBn v mt ct in hnhM t hnh dng c bn ca cc vn BT DL qua mt ng, mt bng, mt ct ngang.

Nhn dng sn phmCc sn phm c ghi nhn nh di y:

Khi nim, nh nghaCc vn b tng d ng lc hay cn gi l c vn b tng d ng lc c s dng ct thp d ng lc.

BTCT : B tng ct thpJIS : Tiu chun cng nghip Nht BnASTM : Tiu chun M

Cp hngThng thng t mt n hai tun k t ngy xc nhn n t hng. Sn phm t tiu chun cht lng s c xut kho v giao cho khch hng.

Tn thng hiu

Loi cc (R: rung, : ng) chiu di cc

Tn cng trnh vit tt, ngy sn xutNDTDP 16 01 2013

SW500BR 15

Chiu cao

(H)

Chiu rng

(W)

L thi cng

u

Chiu di cc (L)

MT CT NGANG

Chiu rng

(W)

Chiu cao

(H)

Mc cu

dy (T)

Mi

CHU TRNH CH TO CC VN B TNG D NG LC






Cng cp d ng lcCp d ng lc trong cun c dui thng v ct thnh tng on theo chiu di nh sn. Tin hnh lun cp vo b cng. Vi ct thp thng c ct, un theo chi tit hnh dng, kch thc thit k.

Dng h b tngSau khi hon thnh cng tc b tng, sn phm c dng h bng phng php hi nc nng hoc dng m t nhin t cng yu cu.

Ct cp / Tho d vn khunQu trnh dng h hon tt khi b tng t n cng yu cu th thc hin ct cp. Vic ct cp phi tun th theo quy nh k thut. Sau , tin hnh tho d vn khun.

Bo dng / Lu khoSn phm sau khi tho vn khun c chuyn qua v tr hon thin, bo dng m t nhin. Sn phm t cht lng yu cu c nh s hiu, nhn mc ca nh my v chuyn ra v tr lu kho.

Ct thp / Vn khunSau qu trnh cng cp d ng lc, cng nhn c nh thp ai v thp dc theo bn v thit k. Sau khi kim tra hon thin khung ct thp mi lp t vn khun c nh theo bn v thit k.

Cng tc b tngHn hp b tng c ch to t h thng trm trn b tng t ng. T , b tng c nh lng v trc tip vo khun, m n khi t yu cu k thut.

2 3

54 6






KCH THC V C TRNG HNH HC SN PHM

Ghi ch:

- Abt : Din tch b tng trn mt mt ct ngang cc (cm2).- Atd : Din tch tit din ca mt ct ngang cc (cm2).- Yt : Khong cch t nh ti trng tm tit din (cm).- Yb : Khong cch t chn ti trng tm tit din (cm).- Lt : M men qun tnh ca tit din ngang cc (cm4).

S.L H t i e a b c d Abt(cm2) At (cm2) Yt (cm) Yb (cm) Lt (cm4)

1 SW 120 8 9.53 120 60 120 556 80 198 396 0 528 548 6 6 6514

2 SW 160 8 9.53 120 80 160 556 78 200 400 0 704 723 8 8 15336

3 SW 225 8 10.7 225 100 200 518.5 93.8 184.2 368.4 18.8 927 954 11.25 11.25 42780

4 SW 300 10 12.7 300 110 200 454 97 181 362 51 1123 1168 15 15 101168

5 SW 350 16 12.7 350 120 200 403 117.3 160.7 321.4 76.5 1314 1385 17.5 17.5 162756

6 SW 400A 16 12.7 400 120 200 370.3 130 148 296 92.9 1427 1543 20 20 240449

7 SW 400B 18 12.7 400 120 200 370.3 130 148 296 92.9 1427 1552 20 20 240449

8 SW 450A 18 12.7 450 120 200 321.2 155 123 246 110.6 1707 1787 22.5 22.5 341010

9 SW 450B 16 15.24 450 120 200 321.2 155 123 246 110.6 1707 1808 22.5 22.5 348089

10 SW 500B 20 15.24 500 120 200 334.9 140 138 276 110.6 1784 1910 25 25 468288

11 SW 600A 20 15.24 600 120 200 306 150 128 256 125 2136 2262 30 30 795348

12 SW 600B 24 15.24 600 120 200 306 150 128 256 125 2136 2288 30 30 797396

13 SW 740 20 15.24 740 160 300 328.4 150 128 256 113.8 2668 2794 37 37 1480428

14 SW 840 22 15.24 840 160 350 318 150 128 256 119 2968 3107 42 42 2125017

15 SW 940 24 15.24 940 160 450 355 160 118 236 100.5 3392 3544 47 47 2983488

16 SW 1110 28 15.24 1110 200 450 420 225 148 296 163 5150 5327 55 55 5663367

17 SW 1200 30 15.24 1200 200 450 408.6 225 148 296 168.7 5600 5789.7 60 60 7318551

KCH THC HNH HC ( mm ) C TRNG HNH HC TIT DIN TNH TONSTT

TN SN

PHM

1SW-120 R-NG SW-120 3M-7M 996 120 60 8 9.53 1.53 0.17

2SW-160 R-NG SW-160 4M-8M 996 160 80 8 9.53 2.04 0.22

3 SW 225 R-NG SW-225 5M-9M 996 225 100 8 11.1 4.28 0.30

4 SW 300 R-NG SW-300 6M-12M 996 300 110 10 12.7 9.58 0.34

5 SW 350B R-NG SW-350B 10M-15M 996 350 120 16 12.7 17.33 0.38

6 SW 400A R-NG SW-400A 10M-16M 996 400 120 16 12.7 20.39 0.42

7 SW 400B R-NG SW-400B 10M-16M 996 400 120 18 12.7 23.45 0.42

8 SW 450A R-NG SW-450A 12M-17M 996 450 120 18 12.7 27.52 0.48

9 SW 450B R-NG SW-450B 12M-17M 996 450 120 16 15.24 31.6 0.48

10 SW 500B R-NG SW-500B 13M-18M 996 500 120 20 15.24 40.77 0.49

11 SW 600A R-NG SW-600A 15M-21M 996 600 120 20 15.24 50.97 0.55

12 SW 600B R-NG SW-600B 15M-21M 996 600 120 24 15.24 60.14 0.55

13 SW 740 R-NG SW-740 16M-24M 996 740 160 20 15.24 60.40 0.69

14 SW 840 R-NG SW-840 17M-25M 996 840 160 22 15.24 77.10 0.74

15 SW 940 R-NG SW-940 17M-26M 996 940 160 24 15.24 93.30 0.80

16 SW 1110 R-NG SW-1110 17M-27M 1246 1100 200 28 15.24 136.00 1.08

17 SW 1200 R-NG SW-1200 17M-28M 1246 1200 200 30 15.24 158.00 1.15

STTTRNGLNG(T/m)

TN SN PHM DI(m)

RNG(mm)

CAO(mm)

DY(mm) S

LNGNG KNH

(mm)

MOMEN KHNG NT

(T.m)

CP D NG LC






THNG S K THUT CA CC VN B TNG D NG LC

Sn phm : Cc vn b tng d ng lc

Mc b tng : C60 MPA - Mu tr (15x30cm)

Tiu chun sn xut : Tiu chun Nht Bn - JIS A5373

Ghi ch: Kh nng chu lc ca cc c th cao hn theo yu cu ca d n.

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