Thi Cong Phan Than Nha Cao Tang Rev0

8/11/2019 Thi Cong Phan Than Nha Cao Tang Rev0

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HIGHRISE BUILDINGSTRUCTURE SUBJECT

by PHAM ANH DUNG


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NI DUNG CHUYN THI CNG NH CAO TNG

PHN 1. CC CNG TC CHUN BTRC KHI THI CNG

PHN 2. THI CNG KT CU NH CAO TNG

Chng 1. Thi cng mng v tng vy

Chng 2. Thi cng tng hm

Chng 3. Lpt vt t, thit b xy dng thi cng nh cao tng

PHN 3. HSE TRONG THI CNG NH CAO TNG


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PHN 1. CC CNG TC CHUN BTRC KHI THI CNG

1. B tr mt bng thi cng cng trnh (tham kho BP thi cng nhcao tng)2. Tr cc3. Bin php thi cng cng trnh.

Thuyt minh bin php v trnh tthi cng.Bn vbin php v trnh tthi cng.

Thuyt minh tnh ton.3. Chun b h s, lpt cc thit b vn phng v thi cngchunb thi cng.


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1. Chun b b tr mt bng thi cng cng trnh :

Nh thu trnh mt bng btr thi cng cng trnh c km theo s cpin

thi cng, cp thot nc. Mt bng thi cng phim bo vic lu thng hiuqutheo phng ngang v phngng, m bo an ton, vsinh, phngchng chy nv thun li cho thi cng.

Vic sdnginu ni, cp thot nc, lhng phi c stha thun

ca cquan qun l.

Cn kho st vnh giyvtnh trng cc cng trnh hin hu lin kkvphn ngm v phn ni.

Phi hp vi Ch u tv cquan Kimnh cng vi Ch u tkim tracc cng trnh ln cn, kho st hin trng trc khi khi cng theo Chthca BXy dng s07/2007/CT-BXD ngy 05/11/2007.

Bn giao cng trnh cho Nh thu vi miu t ycc hng mc hin trng.

Lp hng ro v panpo gii thiu cng trnh phi tun ththeo nguyn tc caThnh ph(hng ro cao trn 2.5m, chc chn v kn kht). Khi c lii cngcng li khng thtrnh nm trong phm vi thi cng, cn lmng giao thngan ton cho ngii li.


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1. Chun b b tr mt bng thi cng cng trnh (tip theo) :

Btr khu ra xe trnh gy bn chong phkhi lu thng khi cng trng

v c hthu nc, cht bn.

Tranh thnhng din tch va thi cng xonglm mt bng thi cng, giacng v kho bi.

2. Trcc : Ch u tc trch nhim xy dng mc trcc GPS chun trong giaionkho st thit k(thng thng t nht l 02 mc) ti cng trng. Cc mcny s c Nh thu trc khi thi cng phi hp vi Ch u t kim trachnh xc ca tamc.

Trc khi thi cng, Nh thu phi ccng trcc cho cng trnh, quan

trc ln, dch chuyn ca tng chnt trong sut qu trnh thi cng. Yucu Nh thu phi kim tra mc t nht 2 tun 1 ln. Nh thu c trch nhim bo vmc trcc trong sut qu trnh xy dng.

Tmc trcc chun, Nh thu sxy dng nhiu mc tm, li trc taddngoc cho cng trnh.

3. Bin php thi cng : Vnguyn tc, Nh thu phi c Bin php thi cng km theo Bn vBinPhp thi cngm tkhi cng tc thi cng phc tp.

Cc Bin php thi cng lin quann an ton thi cng phic tnh ton chitit vcn vc nng lc v chng nng thm tra. V dnhBin phpthi cng tng hm, tnh ton dn gio v cp pha v.v


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4. Chun b h s, lpt cc thit b vn phng v thi cngchunb thi cng.

Vn phng cng trng phi lunc chun b yhskho st, quantrc, kthut thi cng, catalogue vt t, cc thit bth nghim, thit bvn

phng thit yusdng bt klc no.

Cc my mc trc khi vo cng trng phi cygiy tkimnh an

ton. Ring cc thit bc lin quann kt cu xy dng nhcu thp, culeotrc khi thi cng phi c catalogue hng dn sdng, tnh ton khnng chu lc ca mng c thm tra thit ktrc khi lp dng vc cpchng chkimnh an ton bi cquan kimnh.


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TaiH

aS

treet

Sheung

Kok

Street

CastlePeakRoa

d

Phase 4

Section 7

Footbridge

siteentrance 2

Section 6

Section 1

Section 9

siteentrance 1

1 no of

sedimentation &waste watertreatment tank

Block 18Block 17Block 16

Block 15 Block 19

Block 14 Block 13

1 no of wheelwashing machine

Section 8

Section 10

Section2,3,4 & 5

5 nos. ofmaterial hoists

5 nos. of temporaryrefuse chutes

7 nos. of towercranes

30M

Jib

Tow

erCrane

operation area willbe locked

40M

Jib

Tow

erCrane

40M

Jib

Tow

erCrane

40M

Jib

Tow

erCrane

30M

Jib

Tow

erCrane

45M

Jib

40M

Jib

Tow

erCrane

7 nos. ofpassenger hoists

Site access route

Site Layout - Plant

Mt bng thi cng tt, bom thng thong v an ton trong thi cng


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Site office withworkers restroom

TaiH

aS

treet

Sheung

Kok

Street

CastlePeakRoa

d

Phase 4

Section 7

Footbridge

site entrance 2

Section 6

Section 9

Workerschanging room& toilet

site entrance 1

Block 18Block 17Block 16

Block 15 Block 19

Block 14 Block 13

Section 8

Section2,3,4 & 5

Security guard

Car park

Chemical waste

storage area

Curing room

DG store

Chemical materialstorage container

Site Layout - Facilities

Sub-contractor &HHs labour office

Section 10

Hip Hing

workers office

Subcontractoroffice

Section 1


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TaiH

aS

treet

Sheung

Kok

Street

CastlePeakRoa

d

Phase 4

Section 7

Footbridge

site entrance 2

Section 6

Section 1

Section 9

site entrance 1

Block 15 Block 19

Block 14 Block 13

Section 8

Section 10

Section2,3,4 & 5

Steel storage &

bending yard

Precast element

Material andequipment

storage area

Site Layout - Material

Block 17 Block 18Block 16


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Chng 1. Thi cng mng v tng vy (tham kho chuynMr.Hng).




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1. Thi cng bng bin php Bottom-Up

2. Thi cng bng bin php Top-Down

3. Cc lu khiot tng hm.

4. Mt s bin php lm kh h mng

5. Chng thmchotng hm


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HIGH RISE BUILDING SUBJECT by PHAM ANH DUNG

1. THI CNG BOTTOM-UP

L phng phpotn chiu sut mng, sau thi cng nh tphn mng ln mi.

L phng php c in : c p dng khi chiu suh o khng ln, thit b thi cngn gin (Hnh 1)

Hnh 3

m bo vch t khng b st l, ngi ta dngbin php givch h o theo cc bin php sauy:

1. ot theo dc tnhin : p dngi vit dnh,gc ma st trong ln, mt bng thi cng rng lnthicng (Hnh 2)

2. Dng vn c t thnh nhiu tng (khng chng) : h oc to thnh nhiu bc khi vn c khng di chng mt ln hoc khi h o qu su (Hnh 3).

b. Xy nha. o t

a. o t theo mi dct nhin

c. H o

o th

nh nhiu tngc c chn khng chng

Hnh 1

Hnh 2

Hnh 3


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4. ng cc tha cch nhau mt khong0,8-1,5m, onu th ghp vnn

. Cc ng thng l cc thp hnh(U hoc H) v chn vn g. c dngkhi hkhng su, p lct nh, khngc nc ngm chy mnh. G v ccsau khi thi cng c th thu hi sdng li.

5. ng vn cthp di dng cong-xon,p dng khi h o nng, c nc

ngm. Vn c thp s c thu hibng my nhcc hoc cu sau khi thicng xong tng hm.

C g tm

Cc thp

a. ng cc th

a,

o t n u ghp v n ti

C Rombas

C Terres - Rouges

C Beval

C Larssen

V n c thp

b. Vn c thp khng chng lmvic dng cng xn


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6. ng cc thp phun va b tng git. Cc thp sau khicngnchiu su thit k, onu ta tomt vm gia cc cc lun bngcch phun va b tng ln vch tto thnh nhng vm nh, c chnp vo cc cc gi t. Phng nnyc dng khit ri, khng c

nc ngm hay bn.

c. ng cc thp sau phun va b tng dng vm gi v ch t

Cc thp

7. Dng cc khoan nhi, khoan linnhau to thnh vch chng, sautin hnh o. Bin php ny pdng khi p lc t ln. Cngtrnh l nh xy chen cn bo vxung quanh khi b st ln. Vchchng c th tham gia chu lccng mng cng trnh nhng t khis dng n lm tng bao tnghm v khng c kh nng chngthm. Bin php thi cng ca nn gin.

t o t h n h v h c h n g td . D n g c c k h o a n n h i li n n h a u


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8. Gia cnn trc khi thi cng h o thchhp khi thi cngnhng vng ct. Yu cu

phi c mt bng thi cng rng v chiusu h o khng ln. Bng cch dngkhoan v bm cao p pht va xi mng vonnt xung quanh h o. Khi va ximng rn chc sto cho nnt c hsdnh C v gc ma st trong tng lnng

k. uim l phng php thi cngngin, gi thnh thp, to mt bng thi cngthng thong. Nhcim l kh xcnhchnh xc cc thng sca nn sau khi giac, tin tng thp v yu cu c mt

bng thi cng rnggia cvng c nguyctrt.

o

c bm xungVa XM-c t

Bm xi mng c t

Hnh 6 : Gia c h o trc khi o mng

Bm xi mng c t

9. Dng tng vy b tng trongt Tngtrongt bng b tng ton khi c chiudy t 0.6 1.2m hoc Tng b tng

c sn

o t

b)a)

c)


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10. Hshoring chng trc tip xung h o, thngl chng ln u cc khoan nhi hay cc Barettekhi h o rng, tnh hngn sthng thongtrong qu trnh thi cng tng hm.

11. Hshoring chng vng gicc vch i din khikhong cch gia chng l hp.

i mng

Vch chnt bng thp hnhhoc tng b tng ct thp

Hshoring

a2. Mt ct A-A. H ging chng

bng thp hnhCt chng

Tng bao

Thanh chng

Thanh ging

Dm

Tng bao

Ct chngbng thphnh

Dm

A

A


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12. Dung neo b tng ngm trong lngt khic php neo cho tng chnt l hcLarsen, tng vy, cc vy (c sng ca Ch u tcc cng trnh lncn hoc mt bng thi cng rng ri, phnneo thuc vphnt cng trnh, cho phpc nhiu s thng thong cho thi cng).

N cuim l to ra nhiu khng gian

cho thi cngo, onu sneo n. Tuy nhin gi thnh kh cao nn chpdng khi cn thit.

ang xy dngTng hm

hm

y tng

Neo

Mc nc ngm

Dy neo

t t nhin

Hnh 4b : Chng tng bao bng h neo ngm

Thit b thi cngot :

C th ot bng cgii hay thcng.Khi chiu su h o H 7m, c thdng myo mt gu, ng trn mtt mct lunchuyn tip tcc myo nh ct di ho.

Ngoi ra c thdng my o gu dy v myo gu ngom. i vi my o gu dy, chthch hp khiot ht yu, ht ri hoctc lm ti.


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1. Thi cng Bottom-Up

2. Thi cng Top-Down





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2. THI CNG TOP-DOWN :2.1 Bin php thi cng :

L phng phpot v thi cng ttrn xung.

Bc 1 : Thi cng tng trong t v cckhoan nhi trc. C thct ca tnghm cngc thi cng cng cc nhin ct mt nn. Ngoi ra c thdngthp hnh phng vo trong cc nhikhi thi cng cc nhi lm ct tmcho bin php thi cng Top-down.

Bc 2 : ngi ta tin hnhsn tng trt

ngang trn mtt tnhin hoc sntng hm 1 trc nu khnng chulc ca tng vyt yu cu. Tngtrt c t ln tng vy v cttng hm. Dng l m thang my,thang cun, thang b, ramp dc hoccha khong trng trn sn...lmov vn chuynt, thng gi, ly nh

sng..

Bc 3 : Khi b tng sn tng trt tcng, ta bt uot v sn thp hn.tn dng tin, ta c thvathi cng sn hm bn di va thicng sn cao hn.

e 1

c 1

S n t n g h m

T r o n g tT n g

C c n h i

G i a i o n 2 : s n t n g t r t

B t n g s n

e 1

e 2

c 2

c 1

G i a i o n 6 : b t n g t n g y +

i m n g b t n g s n t n g e 2

b t n g t n g e 1G i a i o n 4 : s n t n g n g m c 1

T n g t r o n g t

C c n h i

o

T n g

C c n h i

C c n h i

T r o n g tT n g

T r o n g t

b t n g c t t n g e 2G i a i o n 5 :

o t t n g h m c 2

G i a i o n 3 : o t t n g n g m c 1

v t n g t r o n g tG i a i o n 1 : T h i c n g c c n h i


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2.2 u vn hcim :

* uim:+ Va thi cng xung di, va thi cng ln trn to ra tinthi cng cng

trnh rt nhanh.+ To ra hchng vcht cbn vnnh cao.+ C thgim chi ph cho hshoring, dn gio chng, coffa do kt cu dm

sn chng trc tip ln trn mtt.

* Nhcim:+ B

tr thp

nh c

t t

ng h

m ph

c t

p.

+ Lin k t gia dm sn v ct tng kh thi cng.+ Thi cngt trong khng gian kn kh thc hin cgii ha vnh hng

n sc khe ngi laong.+ Phi lpt hthng thng gi v chiu sng nhn to


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2.3 Cc vn cn gii quyt trong thi cng tng hm bng bin php Top-Down :

a) Hkt ct tng hm : hct tmKing Post c phng vo cc khoannhi trong qu trnh thi cng cckhoan nhi. Ct thp hnh chH hoc 02 I

ghp li

Thp H40

Ct thpng nhi b tng

B t ng nhi t i ch

Thp n g

Ct btct thi cng cng lc vi cc khoan nhi

Cc nhi

Ct thp cc

Ct tm bng BTCT

Ct thp ct

Cc nhi

Ct


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b) Kt cu s n tng hm : Chn gii php sn khng dm (sn

nm) l c hiu qu hn c v k

thut cng nhkinh t do thi cngn gin, khng chim nhiu chiucao thng tng.

Thi cng sn tng hm la chntrong 02 bin php : 1. o tnghmsuhn cao sn 1.5m

dng h gin do v cp pha; 2. b tng lt mng hoc phun titrn mt nng i ac mt lp ncha xi mng, tri lp plastic bntrn trckhiri thp v btng trc tip l n lp nn g i ac.


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c. Thi cngot tng hm : i vi tng hm su 7m :dng myo nh0.5m3 odi tng hm v gu dy vnchuyn tipt ln xehocdng bng tit.


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HIGH RISE BUILDING SUBJECT by PHAM ANH Dung

d. Thi cng mi ni trong tng hm :

Mi ni gia sn, dm tng hm v tngbao :1. t thp chsn c cngthp

v tnh do cao SD 290 khi thi cngtng vy.

COT THEP TNG VAY

TNG VAY

SIKA-HYDROTITE (CJ-0725)

SIKASWELL-S2

414a250

REBARS OF DIAPHRAGM WALL

DIAPHRAGM WALL

XOP DAY 40MMSOFT MATERIAL 40MM THICK

DAM HAM 2B2FL BEAM

2. c blp xply thp chlinkt vi dm sn.


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Mi ni gia sn, dm tng hm v tng

bao :

2. Nu khngt sn thp chkhi thi cngtng vy, c thkhoan cy v ko ththpsn, dm vo trong tng vy. Tuy nhin

bin php ny tn km hn nhiu.1.Khoan to l

2.V sinh l

3. Ko th thp


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Mi ni gia ct thp hnh v dmsntng hm :

1. Ti vtr ct, ct thp dmc ko qua ct,slng phi >50% sthp bng dm.

2. Vi thp ct, ta phithp chcho phnct trn v ct di

Cot thep

Cot thepCot be tong cot thepDam be tong

Dam be tong

Lh

>=

15d

Lh

>=

15d

H

KHI THI CO NG GIAI OA N 2 DA Y 100PHAN BETONG SE C UC TA BO

4

0

THEP CH CUA COT

(NOI HAN VI THEP PHA DI)

500

CAT XA Y D NG DA Y 300

COPPHA

CA T XA Y D NG DA Y 100C TRA M ? 8~? 10L=2 M, 25 C A Y/1M2

15 0 150

DAM

THEP CH CUA COT

(NOI BUOC VI THEP PHA TREN)

15

ho?c

40

Mi ni gia ct b tng v dmsntng hm : khoan cy thp vo ct btct hoct sn

khi thi cng ct b tng

1


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1. Thi cng Bottom-Up

2. Thi cng Top-Down





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1.4 Mt s lu khiot : tham kho chuyn ot tnghm (Mr.Hng)


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Chng 2. Thi cng tng hm1. Thi cng Bottom-Up

2. Thi cng Top-Down



4.1 S dng rnh v h thu nc.

4.2 H nc ngm bng ging lc.

4.3 H nc ngm bng phng phpin thm.



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1.4.b H mc nc ngm bngging lc:

(1) Phm vi p dng :

i vi nnt nn lt ct, vntc dng chy t1-100m3/ngy.

(2) Miu t :t cc ging lc vt my bm

ht lin tc. Mc nc ngmc hthp cc b, nmcaothp hny mng t0.5-1.0m.

Bm

0,5 - 1,0m

Ging lc

Vng h mc nc ngm

Bm

Bm

Bm

GW T

Bm

Bm

0,5m

Bm

a. H thng ging nhiu cp

trc khi bm htGWT : Mc nc ngm

a. H thng ging 1 cp

Hnh 21. H mc nc ngm bng ging su


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(3) Cng thc miu t :- Lu lng nc chy vo h oc tnh gnng theo cng thc:

Trong:q - lu lng lc ca 1 m2 ho.(m3/m) phthuc vot (ct ht nhly q=0,16; httrung q=0,24; ht th q=0,35)F - Din tch h o (m2)hm - Lng nc ma trong ngy;K1 - Hsdphng = 1,11,3.

- Khi h o c tng cvy xung quanh, lu lng nc chy vo hxcnh theo cng

thc:

Trong q = 0,21,3 : phthuc vody lp nc ngm (cao ct nc p lc H).h -su chn c.U: Chu vi h o.

Xcnhc slng ging lc, bn knh hotng ca ging, biu ngng p.

( )3

1. ..24

mF h K mQ q Fh

= +

( )3

0 . . (2)mQ q U H h

h=


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(4). u im : Mc nc ngmc hthm di h o t0.5-1.0m, cho php thi cng kh ro.

(5). Nhcim : dgy ra st ln cho cc vng xung quanh.(6). Cch khc phc: i khigim ln cho cng trnh bn cnh, ngi ta kt hp hmc nc

ngm vi bm nc lthin s t hiu qucao hn, lc mc nc ngmngoi vng kim lckhng cn hnhiu. Hoc mit bm nn ngn t khng kp ln.

1 4


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1.4.c H mc nc ngm bngphng phpin thm:(1) Phm vi p dng :

Khit nn l loit ht bi hoc st(C=10-3 10-5 cm/s) vic sdng

phng php ging thu nc thngthng t c hiu qudo lu lng nctp trung vging khng ln trong khinc vn thm voy h o.(2) Miu t :Bng cch sdng dngin mt chiuc th nh hng v lm tng lulng nc tp trung vcc ging.

Nguyn l ca phng php nyc

minh hotrn hnh 21. Trongintrng gia ccin cc nc tdotrongt di chuyn qua cc lrng tdng cc sang m cc.

Bm

Ging

Cathode

Anode

BmGS

GWT

Cathode

GingAnode

(3) uim : Bin php ny lm thot nc trong lrng cat, tng cngcat do lm

tng khnngnnh ca thnh h o.


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Chng 2. Thi cng tng hm1. Thi cng Bottom-Up

2. Thi cng Top-Down




1 5 Ch th h t h


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1.5 Chng thm c h otng hm :C nhiu loi sn phm chng thm khc nhau: Sika, BASF, Fosroc, Ashford Formula,

Mapei.Cch sdng tng loi sn phm cththam chiu vo cc catalogue sn phmchng thm.

Chng thm cho sn tng hm :+ i vi mt nn lt, sic

m nn cht, i hi lp btng bn trn phi dy 100mm.

+ i vi mt nn l lp b tnglt, yu cu lp b tng bn trnphi dy ti thiu 150mm.

B tng lt nn

Waterstop RX

Mt nn c m nn cht

Voltex

B tng sn 2 lp ct thp

1 5 Chng thm c h otng hm :


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1.5 Chng thm c h otng hm :

Chng thmnhng ni c cc vmng :

Voltex

Bentoseal

Cc BTCT

Waterstop RX

i mng

Sn y

Cht cn nc WaterStopage

Cc BTCT

Bentoseal dy 50mm

Voltex

Waterstop RX

Dm thp I

1 5 Chng thm c h otng hm :b/ Chi tit dm mng khi c p lc thu tnh


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Chng thmnhng ni c dm mngvng xuyn sn.

Waterstop RX

Dm mng

Voltex

Sn BTCT

Voltex

Bentoseal

ng xuyn sn

Waterstoppage

Water stoppage

b/ Chi tit mt ct ng xuyn sn



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Chng thm cho tng hm thi cngtheo bin php bottom-up (khi tngchnt l b tng)

Vol t ex

V n g c p p h a t n g c

N n t m c h t

W a t e r st o p R X

T n g b t n g



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Chng thm cho tng hm thi cngtheo bin php bottom-up (khi gia tngchn v tng hmc lpt sau)

Voltex 300mm

100mm

thanh cht cpphaBentoseal trm cc l

300mm

Tng b tng

100mm

Tng chn bng va BT phun

Voltex

100mm

t lp

khng co ngtc trt bng vaCc ch lm

Lp t Voltex cho tng b tng lp t sau



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Chng thm cho tng hm thi cngtheo bin php Top-down :

Bng tm thp gia 02 t tng

vy(cng ngh i Loan)_Cngnghmi



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Chng thm cho tng hm thi cng

theo bin php Top-down : Bng Waterstop_Cng nghc

in v khng hiu qu

GIOANG NGAN NC _WaterStop

75 300 75

7

5

175

100

175

75

600

LONG THEPLONG THEP

100100200

SIKA WATERBARS GREY (V-20)

STEEL CASE STEEL CASE


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1. Cc loi gin do v cp pha

1.1 Yu cu chung vgin do1.2 Cc loi gin do

a. Gin do.b. Gin do treo.

1.3 Cc loi cp pha

1.1 Yu cu chung thi cng gin gio :


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Tinv tui b tnglunchuyn gin gio v cp pha thi

cng cc tng bn trn theo TCVN4453:1995 v TCXDVN 356 : 2005.

Cy chng nmtrn tng chngli thng c mtct chng l1.2m*1.2m.

Nu sdng cy chng li l cctr n ciu chnh licao nhren vt th khng nht thit phi lmging. Nu cy chng li phi nmchn th lm ging theo chaiphng vung gc vi nhau.

1.2 Cc loi gin gio :


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a. Gin gio :

Gin gio t hp kiu khung ca (Frame Scaffold)

Gin giong thp c vng kp (Scaffold Tubeand Coupler) :

Gin do ding ( Mobile Scaffold) :


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Sn ln xung (Pump Jack):

b. Gin gio treo (Suspended scaffold) :


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Mc xch (Catenary):

B (Float):

Nhiu cp (Multi-level):


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R treo :

Gin do ding ( Mobile Scaffold) :


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Sn ln xung (Pump Jack):


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1. Cc loi gin do v cp pha

1.1 Cc loi gin do

a. Gin do.

b. Gin do treo.

1.2 Cc loi cp pha ct, sn, b nc, trt :

a. Cp pha thp t hp.

b. Cpphat hp kim nhmc.c. Cp pha nha Fuvi.

d. Cpphat hp thp g.

Coffa thp t hp bao gm :


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Coffa t hp kim nhmc (Aluminium formwork) :


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Coffa nha Fuvi :1. Coffa ct


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Coffa Fuvi :2. Coffa sn, dm :


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Coffa Fuvi :3. Coffa tng :


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Coffa Fuvi :3 C ff b


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3. Coffa b nc:

Coffa Fuvi :4. Coffa trt:

Coffa t hp thp g :1. Coffa ct :


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Coffa t hp thp g :3. Coffa tng :


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Coffa t hp thp g :4. Coffa b nc :


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Coffa t hp thp g :5.1 Coffa trt mt mt Nh cao t ng :


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Coffa t hp thp g :5.2 Coffa trt hai mt Nh cao t ng :


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Coffa t hp thp g :5.3 Coffa trt t ng Nh cao tng :


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2. B tng ct thp c in :

a. B tng.

Vt liuvth nghim

Thi cng v bo dng.

Tho cp pha

b. Ct thp.

a. B tng.

Vt liu v t h nghim


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Vt liu v t h nghim

Xi mng : : Xi mng dng loi PC40 hoc loi t to nhit Q7ngy 75 Cal/g, loi bn sunphatPh hp TCVN 2682-99 i vi xi mng poc lng thng,Ph hp TCVN 6260-97 i vi xi mng poc lng hn hp.

Ct: c chp thun cho s dng khi cc ch tiu kim tra ph hp TCVN 1770-86. (si): c chp thun cho s dng khi cc ch tiu kim tra ph hp TCVN 1771-87. ng knh ht ln

nht ca (si), Dmax, thi cng mt kt cu c th cn m bo ng thi cc iu kin:Khng vt qu 1/5 kch thc nh nht gia cc mt trong ca vn khun;

Khng vt qu 1/3 chiu dy tm, bn;Khng vt qu 3/4 kch thc thng thu gia cc thanh ct thp lin k.

Nc trn v bo dng:Nc c chp thun cho s dng nu cc ch tiu kim tra ph hp TCVN 4506-87.Thn trng khi cho php s dng cc ngun nc nhim mn. Cng trnh b tng ct thp thngthng xy vng bin nn khng ch Cl- 500mg/l.

Ph gia b tng:Chng ch ca nh sn xut hoc phiu kim tra cn c cc ch tiu :+ loi;+ hng sn xut;+ nng lc v tnh cht (kh nng gim nc, kh nng ko di ninh kt, ...);+ t l ph gia khuyn co s dng theo % so vi xi mng.Ph gia c chp thun cho s dng khi :

+ Cht lng ph hp vi cc yu cu k thut thi cng ca cng trnh,+ S dng ng hng dn ca hng sn xut,+ C kt qu so snh i chng b tng c v khng c ph gia trn loi ph gia dng cho cng

trnh.Khng nn s dng ph gia c cha Cl- cho kt cu b tng ct thp trong iu kin Vit nam.

Trnh tth sp : cao t h thp ca khi b tng tic to thnhtrong cn tiu chun, sau khi nhc cn ra khi b tng


68/105

1 2

3


69/105

Khi thi cng m th cng, st c th chn cao hn 2 3cm.

Khi thi cng m bng phng php rung nn, rung va, stchn bng 1014 cm hoc chn hn hp c cng Vebe 4 8 s.

st thch hp phc v mt s cng ngh thi cng c bit cth chn nhsau: Cc khoan nhi: 14 18cm;

B tng bm: 12 18cm tu theo khong cch v chiu cao bm;

BT chn cc khe, hc, mi ni nh khng m c: 18 22 cm.

Khi thi gian thi cng cn ko di thm 3045 pht, st c thchn cao hn 23 cm so vi gi tr ghi bng trn.

Khun mu hnh vung


70/105

Khun mu trn

Mc b tng (hay gi tr cng nn ca b tng tui nghim thu):i vi cc cng trnhdn dng, cng nghip thng l cng nn ca b tng tui 28 ngy (R28).

H s quy i t c ng nn ca b tng xc nh trn vin mu hnh tr kch


71/105

q y g g

thc 150x300 (xH) sang vin mu lp phng kch thc 150x150x150 mm:R(Mu lp phng) = k x R(mu tr). k = 1,15 - 1,25, trung bnh k = 1,2 ( TCVN 3118-93).

My nn b tng

B tng : Thi cng b tng

m theo tng lp ng quy nh


72/105

, m theo tng lp, ng quy nh

ca TCVN 4453-95

Mc tiu cn t: B tng pht trin cng thun li chng nt do co ngt

B tng : Bo dng b tng


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Mc tiu cn t: B tng pht trin cng thun li, chng nt do co ngt.

Hnh thc bo dng:

Ph m hc phun ph cht chng mt nc;

Phun nc theo chu k;

Ngm nc.

Khi b tng khng c ba dng cng nn, ko ca b tngc th b suy gim 10-30%, cc kt cu b mt rng, bng btng bm d b nt do co ngt. Cc dng vt nt co ngt thnggp:

Nt mt khng theo mt h

ng xc nh.Nt dc theo cc thanh ct thp;

Nt u theo khong cch 6-12 m/vt i vi cc kt cu di.

Thi gian bo dng m cn thit theo qui nh TCVN 5592-91.


74/105

B tng : Tho gin do v cp pha

Thi gian cn tho vn khun gio, ph thuc vo cc thng s: dng,


75/105

g g , p g g,

khu v cng b tng kt cu ti thi im tho; ly theo qui nhca thit k hoc ch dn ca TCVN 4453 : 1995 v TCVN 356:2005



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2. B tng ct thp c in :

b) Ct thp.

Phn loi ct thp : ct thp Vit Nam, ngoi, thcng, nhp ca nc ngoi.

Kim tra cht lng thp.

Thi cng.

Ct thp : phn loi

1 C


77/105


1. C

t thp Vit Nam : Kch c: 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32,

36, 40.

Phn loi theo cng

+ Trn trn, l

nhm CI (c c

ng thp);+ Trn gai, l nhm CII (cng trung bnh) v CIII (cng nng cao)

- Cch nhn bit:

+ Theo k hiu ni in trn cy thp (c cch khong 0.8 mt n 1.2 mt k

hiu li c lp li)

2. Ct thp ngoi :

Thp trn trn v trn gai;


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HIGH RISE BUILDING SUBJECT by PHAM ANH Dung

p g ;

S nhm thp ca cc nc c khc nhau (t 2 n 10 nhm vi kch c t 6 n 40 v ln hn);

Cng ca mt s nhm thp tng ng vi thp VN, c mt s

nhm thp c c

ng cao hn thp VN; Cc ch tiu cht lng thp nhp ca mt s nc.

Cch nhn bit:

+ Theo k hiu ni (mi hng SX c cc k hiu ring) in trn cy thp

(c cch khong 0.8 mt n 1.2 mt k hiu li c lp li).

+ Theo quy cch gai (xem trong tiu chun sn phm ca mi nc).


79/105

4. Thp th cng


80/105


Mt s du hiu nhn bit:+ Khng c k hiu trn cy thp;+ Hoc nhi k hiu ca cc doanh nghip khc c cp chng ch (th d:VUC, VUA, VU-C l k hiu nhi gn nh V-UC; VP nhi gn nh VPS);+ Mu sc luyn cn: mu khng u trn cy thp, mu gch, cc cy trong

cng l hng khng u v hnh dng;+ Trn dc cy thp cn l np cun khi cn;+ van ln, gai khng ni hoc qu ni trn cy thp, ng gai khng tom mnh hn thp chun nhiu.

5. Thp nhp ca nc ngoiNhn bit:

+ Cc k hiu trn cy thp khc vi cc k hiu nu trn;+ Cc k hiu ca thp ngoi c s dng VN: SS, SD, HK, IS, MS, TS...;

Kim tra cht lng :Chng ch ca nhsn xut, phiu th ca phng th nghim

+ Catalogue ca nh sn xut


81/105


+ Ngun gc, xut x+ Phiu th ca phng th nghim

Cc lu trong kim tra ng knh, s ph hp tnh cht c l v thnhphn ho, kh nng hn

+ Kim tra ng knh: Thc cp ch l c tnh: [d(trong gai) + d(ngoi gai)] / 2 Theo cng thc: dthc o = 4.027Q(gam)/L(cm) , mm

Trong :Q- trng lng tnh bng gamca on thp kim tra;L- chiu di tnh bng cm caon thp cn trn, yu

cu kim tra trnLmin.=50cm.

Thi cng ct thp :


82/105



83/105


84/105



85/105



1. Gin do v cp pha.

2. B tng ct thp c in.

3. Cp d ng lc (DUL)a. Cc li chca cp DUL

b. Cc cng ty thi cng Cp DUL ti Vit Nam.

c. Quy trnh thi cng Cp DUL.

4. B tng Cp d ng lc (DUL) :


86/105

Thng s dng cho sn c khu t 7m tr ln.a. Cc li chca cp DUL :

V kinh t : khng chnh lchng k so vi b tngct thp c in.

V k thut : thi cng nhanh hn so vi b tng ctthp c in.

V m thut : c th vt nhp ln, tit kim chiucao tng.

b. Cc cng ty thi cng cp DUL ti Vit Nam :

Cng ty VSL ca Australia.

Cng ty Freysiney ca Php.

Cng ty IBST ca Vit Nam.

1. Ly du tim, trc, cao ngcpcnh du trn vnkh C i h d

c. Quy trnh thi cng b tng Cp DUL :


87/105


khun. Cng vicnh ducthc hin khi ct pha honthin, caochun.(nh thu vnkhun)

2. Ri thp lp di. (Thc hin bi nh thu ct thp)

3 R i h thi ht

c. Quy trnh thi cng b tng Cp DUL (tt):


88/105


3. Ri cp, hon thinu neo sng, u neo cht.

4. Qun bng keonhng khp ni.


89/105

7. To lbm va, lpng bm va.



90/105


8. Vsinh v Nghim thub tng.

9. Trong qu trnhb tng, VSL scksv gim st vin, cng nhn, tin hnhtrc b tng, phng hng hc cp khib tng.

10 Bo d ng



91/105


10. Bo dng


92/105

12. Kim tragin di, tin hnh ct cp.



93/105



94/105

14. Bm va. Trc khi bm va nh

thu s tin hnh th



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thu s tin hnh thnghim cp phi va ngayti cng trng. Vic thnghim ny s cchng kin bi ch ut, t vn gim st, nhthu chnh.

Cp phi va shnh lmcc th nghim sau:

a. Th nghim chyca va.

b. Th nghimrncca va

c. c mu va nn 7ngy v 28 ngy.

Khi th nghim cp phi vat yu cu th mic bm va vong cp.

Trong qu trnh trn vabm vong cpu c schng kin ca ch u t, tvn gim st, nh thu chnh v sth chy ca va, c muth nghim.

Vicc mu s uc tin hnh mi ca bm mt tmu.



96/105


PHN 3. HSE TRONG THI CNG NH CAO TNG

39 67

65.4

50

60

70

00employees/100

1. Sngi bthng trong 100 ngn ngi laong thng thng theo thng k :


97/105


2. Cc yu cu chung :

Nh thu phi mua bo him tai nn cho cng nhn, thit bv bn th03 khi thi cngti cng trng theo quynh ca Php lut

29.67

16.04

24.34

39.67

21.82

9.09 9.17

26.76 28.68

0

10

20

30

40

Metallu

rgyIn

dustry

Constru

ction

materialsIn

dustry

Man

ufactu

ringind

ustry

Constru

ction

Ind

ustry

Electro

nicalI

ndustry

Tran

sprtatio

nIn

dustry

Mining

Indu

stry

Food

proce

ssing

Indu

stry

Man

agem

ent

Agric

ulture

Sector

Numberofin

juredpeopleper100,0

0

Frequency of construction accidents

Nh thu phi trnh bin php an ton laongi km vi Bin php thi cng.Nh thu s c Tvn pht stay an ton thi cng, cng nhhng dn cp php an ton

thi cng cho Nh thuNh thu phi c khoch an ton v hun luyn an ton cho cng nhn thng xuyn v c

chk xc nhnc hun luyn an ton ca cng nhn v trnh ln Tvn

R ph bom mn khiot.

Xin u ni nc thi qua xl ca cng trnh vo hthngthot nc thnh ph


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q g gthot nc thnh ph.

Phi c bng chdn dc trnngi, chmy nng vt liu

Kho cha hng phi lu n vic


99/105


Kho cha hng phi lu n vicphng chy v cha chy

Lp li che chn an ton xung quanh cng trnh .


100/105


Mt bng thi cng tng hm v mttphi lun kh thong v thot nc tt.


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Bin php thi cng, gin do v cppha lin quan n an ton phi ctnh ton cn thn vc thm tra bi

cng ty c nng lc.Cng nhn thi cng trn cao phi c


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Cng nhn thi cng trn cao phi chnh lang bo v v cai an ton.

Cc thit bthi cng, cu, cu thp phicchng nhn an ton thit b, thm tra tnhton mng cu thp. Khi vn hnh cu thpphi c 02 thvn hnh : 01 li cu v 01 di mtt bo hiu an ton.


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Thi Cong Phan Than Nha Cao Tang Rev0

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Transcript of Thi Cong Phan Than Nha Cao Tang Rev0