TCVN 9342 2012 cop pha truot thicong va nghiem thu

TCVN

TIÊU CHUẨN QUỐC GIA

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TCVN 9342 : 2012
Xuất bản lần 1

CÔNG TRÌNH BÊ TÔNG CỐT THÉP TOÀN KHỐI
XÂY DỰNG BẰNG CỐP PHA TRƯỢT –
THI CÔNG VÀ NGHIỆM THU
Monolitic reinforced concrete structures constructed by slipform –
Construction and acceptance

HÀ NỘI - 2012

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TCVN 9342:2012

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MVC LVC
1

Phqm vi Ap dung ............................................................................................................................. 5

2

Tidu chuan vien dsn ........................................................................................................................ 5

3

Thuat ng0 vh djnh nghia ................................................................................................................. 6

4

Quy djnh chung ...............................................................................................................................8

5

~ h i dbj
t c6p pha twqt ......................................................................................................................8

6

~ h u a bi
n thi cdng b&g d p pha twqt ...........................................................................................
16

7

'rhi c6ng bang dppha twqt .........................................................................................................
18

8

~ h h d~
o thidt bj c6p pha twqt ....................................................................................................... 28 .

9

An tohn thi ding ............................................................................................................................
28

10

~idm
tra vh nghiem thu ..............................................................................................................
33

Phy lyc A Mot s6 y8u chu ddi vdi thidt kd cdng trlnh thi c8ng bang c6p pha twqt ..............................38
Phy lyc B T4i trgng tAc dong l8n &c bo phan cOa he thdng thidt bj cbp pha truqt..............................4-0
Phy lyc C Tinh lytc mang t4i cho phbp cOa ty kich.....................................................................42
Phy lyc D Thi ding bang c6p pha truqt Si16 b8 t6ng c6t thdp wng suat tnudc cang sau....................43
Phy lyc E N h h g sy dt h d n g g#p trong khi thi c8ng bang d p pha tnvqt vh bign phhp khac phyc......45

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TCVN 9342:2012

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TCVN 9342:2012 dwqc chuyhn ddi tw TCXD 2542001 thAnh Tieu chuan
Q U ~ Cgia

the0 guy djnh'tai kho4n 1 Di&u 69 cda Luat Tieu c h u h vA Quy

chuan ky thuat vA Uihm b khoan 2 Dibu 7 Nghj djnh s6 127/2007/ND-CP
ngAy 01/8/2007 cda Chinh phd quy djnh chi ti& thi hAnh m?t s6 Ui&u cda
Luat Ti6u chuan vA Quy chuan kq thuat.
TCVN 9342:2012 do Vien Khoa hgc CBng nghe XAy dvng - B? XAy dvng

bien soan, B? XAy dvng d& nghj, ~ d n gcyc Tieu chuan Do Iw&ng ChQt
lwqng tham djnh, B? Khoa h ~ vA
c C8ng nghe c6ng b6.

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TICU CHUAN

TCVN 9342:2012

QU~C
GIA

C6ng trinh bO t6ng c6t thep toan kh6i xay dyng bang c6p pha
trwqt - Thi c6ng vil nghiQmthu

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Monolithic reinforced concrete structures constructed by slipform

-

Construction and

acceptance

1

PhqrnviApdyng

Tieu chuan nay Ap dyng d&thi cdng vA nghiem thu cAc Sild, bng kh6i, ~Bngd u thang, be, thung ch6a,
dAi nvdc, thAp truydn hinh, vAch, tAm tlv&ng be tdng c6t th6p toAn kh6i a5 chidu day thAnh khdng thay

d6i ho$c thay d6i theo hlnh cdn, dvqc thi cdng bang c6p pha tmgZ theo chidu thdng dhng.

Ciic tAi lieu vign d8n sau Id can thi&t cho vigc i5p dung tieu chuan nay. ~

6vdii cAc tAi lieu vien dan ghi

niim cdng b6 thi Ap dyng phien b4n dvqc neu. D6i vCri &c tAi lieu vien den khdng ghi nilm cdng b6 thi
Ap dyng phien b4n mdi nh$t, bao gtim c4 cAc sila ddi, bd sung (n&u cb).

TCVN 1651-2:2008, Thbp cdt bd tdng - ~ h d 2:
n Thbp thanh vdn;

TCVN 1651-1:2008, Th&p cdt b6 tdng Phdn 7: Thbp thanh trdn tmn;

TCVN 2737: 1995, Tdi t r ~ n gvtl thc dong - Tidu chudn thidt kd.
TCVN 3105: 1993, H6n hqp b& tdng n4ng vd b6tdng nang. ~ d mQu,

y
chb tgo vtl b8o du9lng m8u th&

-

TCVN 3255:1989, An totln nd Y&u cdu chung;
TCVN 4086: 1985, An todn 6 g n tmng xhy d(mg

- Y&u cdu chung;

TCVN 4091:1985, Nghigm thu chc cdng trinh xhy dyng;
TCVN 4244:1986, Quiphgm kp thu#t an totln thidt bj ndng;

-

TCVN 4453: 1995, Kdt cdu b& tdng vtl b6 tdng cdt thbp todn khdi Qui phgm thi cdng vd nghiem thu;

-

TCVN 5279: 1990, An todn chhy nd. Bui chhy Ydu cdu chung;
TCVN 5308: 1991, Qui phgm ky thu#t an todn tmng xdy dyng;

-

TCVN 5574:2012, Kdt cdu b6 tdng vh bd tdng cdt thbp Ti6u chudn thidt kd;

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TCVN 9342:2012

I

TCVN 9398:2012, CBng tdc t d c die trong xdy dyng cBng trinh - Y6u cbiu chung;

3

Thugt ng0 vQ djnh nghia

'rhl c6ng b%ngcbp pha trwtyt (Constructed by slipform)

LA dicng cAc kich chuyen dung day c6p pha ttvqt len the0 mgt b6 tdng cicng dbng th&i vbi cAc cdng

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vihgc l i p dat c6t thbp, dd be tdng vPo cbp pha d& tqo hlnh kdt tau bb tdng c6t th6p chn thi cdng.

He th6ng thibt b/ c6p pha trrPqt (System of slipform device)

LA mot hhg th6ng thidt bj dbng bo cung cap tat

d nhnhang gl chn thidt d& thrpc hien day chuyen cdng

nghg thi cdng cbng trlnh bb tdng c6t thbp toPn kh6i bang cbp pha tnvqt.

GI6 nang (Lifting framing)
LA kdt cau chju lrpc chlnh c~jahhg thbng thidt bj cbp pha twqt, dicng d& cb djnh klch, vAnh gdng, d& d6
sPn cdng thc vA duy trl hlnh dqng hlnh h ~ clia
c cbp pha.

VAnh gbng (Yoke ring)

LA kdt cau d& c6 Uinh cAc tam cbp pha the0 dling vj tri nhw d%ghi trong thidt kd, d& gdng gi3 khdng
cho c6p pha bj mat dn Uinh vA bj bidn dqng trong qua trlnh thi c6ng tnvqt. VAnh gdng dulqc lien kdt chat
v&i giA nang d& cicng giA nang kbo c6p pha Ien theo.

~ b pha
p (Formwork)

Dwqc tqo nbn tw nhibu tam cbp pha chd tqo s i n bang thbp ghbp lqi d& tqo hinh kdt cau trong khi thi
p dwqc c6 djnh viio vPnh gdng d& chuy&ndong cicng vAnh gdng. Trong khi thi cdng
cdng trwqt. ~ 6 pha
mat c6p pha twc tidp tidp xlic vA tnvqt trbn be mat bb tdng m&i dd ciia kdt tau.

Ty kich (Jack rod)
LA ch6 drpa vA dw&ng dan d& cho kich bAm viio vA leo lbn trong khi thi cdng trwqt. Loqi ty kich sau khi
thi cdng xong c6ng trlnh thl rirt ra dd siP dung lgi cho thi cdng cdng trlnh khAc g ~18i 'ty kich chuyen

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TCVN 9342:2012
ditng". Loqi ty kich sau khi thi c8ng xong kh8ng nit ra m9 dd nam lqi trong be t8ng c8ng trlnh ggi IA "ty
klch kh8ng chuyen ditng", a3 thd siv dung loqi ty klch nAy kiem lu8n lam cbt thbp chju lyc.

SBn cdng tac (Work platform)
L9 nui t h w hien chc thao tdc chlnh trong khi thi d r l g bang c6p pha trvqt nhv dd be t&ng, lap dat c6t
thbp, tap kdt vet lieu, van chuydn be t8ng theo phvung ngang. SAn cbng tac dvqc nang dan I6n trong
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quh trlnh twqt v9 d w c d u tqo phic hqp v&i kdt chu, c8ng trlnh can thi dng. SAn d n g thc b mat ngoAi
-

c8ng trlnh ggi lA s9n d n g tdc ngo9i. SBn c8ng tdc b mat trong ggi I9 s9n &ng tdc trong.

GiBn glao treo (Hanging scaffold)
LA gi9n gido dwqc treo 6 phla dv&i sBn c8ng tac, 19 nui dd thyc hign d c c8ng viec hoan thien b& mat
be tdng, kidm tra M t8ng sau khi ra khubn, b8o dv&ng be t&ng, thho dB khu8n 16chiva s8n. GiAn giho
treo b mat ngo9i c8ng trinh ggi 18 giho treo ngo9i. Gi9n gi4o treo b mat trong c8ng trlnh ggi 19 giho treo
trong.

Cwung do ra khudn cira b4 tdng (Concrete strength out of formwork)
LA cv&ng do be t8ng cOa d n g trlnh b tudi viva I0 ra khdi d p pha twqt.

3.10

00 cdn cbp pha (Conicity of formwork)
Chi mhc do nghieng clira c6p pha khi lap, tlnh bang ti sb phan tram cOa chi&ucao cbp pha.

Cdng tdnh (Construction site)
Tiv " d n g trinh' dong trong ti& chuan nay chi Sib, bng kh6i, ~bngcau thang, bd, thitng chfia, d9i nv&c,
thhp truy&n hlnh, vgch, tam tv&ng, hoac d c cbng trlnh a3 dqng tvung t ~ .

3.12
TrrPqt khdng (Slide Without concrete)
L9 quh trlnh chi twqt nang cbp pha l6n mB khbng dd M tbng v9o khudn cbp pha.

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TCVN 9342:2012
4
4.1

Quy djnh chung
Thidt kd c8ng trlnh hp dung phvung phhp thi c8ng bang c6p pha tnvqt c%nphir hqp v&i n h h g

d$c didm cba thi c8ng bang c6p pha trvqt, c6 thd tham kh4o Phy lyc A vA Phy lyc D.
4.2

Thi d n g bang c6p pha tnrqt kh8ng nen thwc hien trong khi c6 b80, lbc, mlva I&n. Tnvbng hqp

bat buoc phdi thi c8ng trong khi c6 b80, 16c, mlva I&n thi ph4i c6 bien phhp dac biet r i h g d4m b4o thi
c8ng dqt chht lvqng vA an toAn.

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4.3

Khi Ap dyng tieu chuan nay can dbng th&i tuan tha nhbng quy djnh trong d c tieu chuhn, quy

phqm hien hAnh khhc c6 lien quan.

5

~ h i bbj
t c6p pha trwqt

5.1

C ~ QO
U he th6ng thidt bj c6p pha t

q

He th6ng thidt bi c6p pha trlvqt bao gbm: GiA nang, vAnh gdng, c6p pha, sAn c8ng kit, giAn giho treo,
he th6ng thidt bj nang (kfch thuq Ivc, ty kich, tram bum dau), he th6ng van chuydn vat lieu the0 phlvung
ngang vB the0 phlvung dljlng, he th6ng dien thi c8ng, he th6ng th8ng tin, tln hi&, he th6ng thidt bj do
vA quan trac dd kh6ng chb d4m b40 do chlnh xAc vA chht lvqng thi c8ng. Su db he th6ng thidt bj c6p

@a trwqt thd hien b Hlnh 1.
5.2

Ydu tau chung

5.2.1

T5i trgng dd tinh tohn thidt kd cAc b4 phan cira he th6ng thidt bj c6p pha twqt lhy theoPhybB

5.2.2

Chc b4 phan gih nang, vAnh gdng, c6p pha, sAn d n g thc, giho treo cira he thbng thidt bj c6p

pha trvqt can dvqc tfnh tohn thibt kb dlir cwng, dlir kh4 nang chju Iwc phir hqp v&i &c quy dinh cira
TCVN 5574:1991, TCVN 5308:1991 c6 tinh djnh hlnh cao, d6 thAo 14pvA c6 chu tqo phir hqp v&i chc
quy djnh clira ti6u chuan nAy vA cAc tieu chuan khhc c6 lien quan.
5.2.3

Gia d n g chd tqo chc b8 phan giA nang, vAnh gdng, cbp pha, sAn c8ng tAc, giho treo cira he

th6ng thidt bj cbp pha tnvqt &n tho4 man d c yeu cau cira thidt kd, cira tigu chusn nAy vA cira &c ti&
chuan lien quan hien hAnh. Mat ngoAi caa kdt d u th6p (triu ty kfch vA mat cbp pha c6 tidp x~jcv&i be
tdng) can dvqc sun ch6ng gi.
5.2.4

Chc be phan cira he th6ng thibt bj c6p pha tnvqt &n c6 chljlng chi xuht xlvbng cira nhA s4n

xuht. Chc mhy m6c caa he thdng thibt bj nang &n ph4i c6 kidm anh hqp chuan.

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CHU DAN
1. G i i nang

2a. VBnh gdng tr4n
2b. VAnh gdng dv&i
3. cdppha

4a. SBn cdng t8c ngoAi
5a. Giio treo ngoBi
5b. G&o treo trong
6. Klch thQylyc

7. Ty klch
8. Trqm bum dbu
9. 6ng dan dbu
10. He thdng van chuydn be tdng the0 phwung ngang

11. He thdng gi8o thang tAi van chuydn vat lieu theo phwung d h g
12. H4 thdng dien chidu sing
13. ~4 thdng thbng tin tin hi&

14. He thdng dhu do khdng chd 60 chlnh xdc thi c6ng

-

Hlnh 1 So d h# th6ng thih b/ c6p pha k w q t

5.2.5

Sai lgch khi chd tqo cdc be phan cira he thdng thidt bj c6p pha twqt khdng vulqt qud gid trj sai

s6 cho phbp ghi trong BAng 1.

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TCVN 9342:2012

-

Bang 1 Sill s6 cho ph6p khi chb tqo cCc b? phQnc h he t d n g thidt b/ c6p pha trwqt
D a n vi tlnh bhng milimkt

Thdng s6 kji thuQt

Tgn bQphQn

Do p h h g be mat
Chibu d8i

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T$m cbp pha thbp dinh hinh

rang
DO t h h g clira cqnh
~j tri 16nbi

Gid tri sai s6 cho ph6p

* 1,O
* 2,O
- 2,O

* 2,O
* 0,5
- 5,O

Chieu d8i
V8nh gdng

Do cong:

NQU chieu d8i nhd hun 3 m
N6u chieu d8i 16n hun hoac bang 3 m

* 2,o
* 4,O
* 0,5

Vj tri 16nbi

~ h i e rong
u

* 3,O
* 3,O

Vj tri d?#9v8nh gdng

+ 2,O

Chieu cao
Gia nang

Vj trl 16nbi
Do cong
D w h g kinh
Ty kich

Tam dAu nbi

* 0,5
* U500
- 0,5
0,25

CHU TH~CH:L 18 chleu dBi ty klch
5.3

5.3.1

~ 6 pha
p

T$m cbp pha ph&i c6 tfnh thdng dung d& the0 lhp, dlir do cwng. T$m cbp pha djnh hinh dung

trong thi d n g bang cbp pha tnvqt nen ch6 tqo bang thbp c6 chieu day khdng nhd hun 1,5 mm v8 c6
c$u tqo swan tang cwng bang thbp g6c c6 ti6t dien khdng nen nhd hun L 30 x 30 x 4. Chieu cao clira
t$m cbp pha nen tb 1 200mm d6n 1 600mm, chieu rong cOa t$m cbp pha nen tw 150mm den 500 mm.

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5.3.2

Chc loqi t$m c6p pha dac bigt nhw: tarn cbp pha g6c1tam c6p pha thu phan, tam cbp pha chi

njt... can dwqc thidt kb vA chd tqo phir hqp v&i t h ~ td
c thi cdng cira twng cdng trlnh cy thd.
5.3.3

Tam cbp pha sau khi chd tqo xong bbn g6c phdi vudng cdc cqnh phdi thang, mat tam phHi

hang vA khdng thing I6 hoac c6 gai x&m. Sai 96 khi chd tqo tam c6p pha khdng vwqt quh gih trj cho

ph6p ghi trong Bdng 1.

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5.4.1

VAnh gdng nen ehd tqo bang th6p hinh b dqng thdo 16p.BAn tdp n6i gi&a 2 doqn vAnh gdng,v&i

nhau nen dirng bang;hbp c6 cw&ng do twung ling v&i th6p vdnh gdng. ~ 6dbu
i bdn tdp can c6 it nhbt
IA hai bu 18ng lien kdt. Sai s6 khi chd tqo vAnh gdng khdng vwqt quh gid t i cho phbp ghi trong BHng 1. .
5.4.2

VAnh gdng tren vA vAnh gdng dw&i n&ndat d c h nhau tw 500 mm ddn 700 mm. KhoAng chch tw

m6p tren cOa c6p pha ddn vAnh gdng tren khdng ndn l&n hun 250 mm.
5.4.3

~ d khodng
u
d c h giCia d c gid nang l&n hun 2,5 m hoac khung chju tAi cOa sAn cdng tdc twc

tidp chbng Ien vAnh gdng thl n6n lien kdt vAnh gdng tren vQ vAnh gdng dw&i thAnh mot khbi dd tqo
thAnh vAnh gdng b dqng kdt d u dAn, nham tang them do c6ng vA tinh dn Uinh khdng gian cOa vAnh
gdng. 6 chc vi tri ddi hw&ng cOa vAnh gdng n6n d u tqo li6n kdt a n g .
5.4.4

VAnh gdng dirng d6 thi cdng cdng trlnh c6 c h i h day thAnh thay d6i lien tuc the0 c h i h thang

dwng nen c h ~ n

kidu co gian phan doqn.

5.5.1

C$Utqo gid nang can thdng dyng vA thich hqp d& thi cdng dwqc n h i h dang kdt chu vA n h i h

loqi c&ng trlnh. Lien kbt dam ngang v&i try dwng nen chd tqo b dqng 16pghbp dd d& phir hqp v&i do
dAy kdt c$u vA d& Uibu chhhh do c&n cOa c6p pha. 06i vbi nhong kdt cau vA A n g trlnh khdng sb dyng
dwqc loqi gih ning thdng dyng thl phdi chb tqo loqi gid nang chuydn dirng phir hqp v&i Ui&u kign thi
cdng t h ~ td
c cOa d n g trlnh 66. Sai s6 khi chd tqo gid ning khdng vwqt qua gih trj cho ph6p ghi trong
Bdng 1.
5.5.2

Cau tqo gid nang d n phir hqp v&i cdc quy Uinh sau:

a) Hlnh dBng gih nang cb th6 18 dqng

'+ c6 mot dam ngang hai tru dwng, dqng

'IT'

c6 hai dam ngang

hai try dwng, hoac 18 dqng 'I?" c6 mot dam ngang mot ttry dwng. Lien kdt giOa dam ngang vQtry dwng 18
lien kdt cong. Tim tryc cOa dam ngang vA try dong phdi cQngnam trong'cirng mot mat phang.
b) Khodng cdch tinh tw mbp tren cOa cbp pha ddn day dam ngang cOa giB nang khdng nen nhd hun
500 mm d6i v&i cdng trlnh be tdng khdng cbt th6p vA khdng ndn nhd hun 250 mm d6i v&i c8ng trlnh be
tdng

c6t th6p.

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c) Gid nang dung cho c8ng trinh c6 thidt dien thay dbi thl tr6n try divng can-d$t them mot chi tidt dd c6
thd dibu chlnh dvqc khoang cdch vA do nghi6ng giOa cbp pha trong vA cbp pha ngoAi.
d) Ndu dung ty klch kidu chuyen dirng dd thi cdng, thi phai dat vudng g6c b phla dv&i dam ngang cba
gid nang tqi dQngvj trl I6 ty klch bi qua mot bng bao ty klch c6 dvbng klnh l&n hun dwbng klnh c3a ty
klch tiv 2 mm ddn 5 mm v l ~ 6 . 6dAi
4 t&i cqnh d W i cba cbp pha.

~b trl gia naug d n phu hqp v&i thidt bj nang (klch thuq Ivc). Ndu bb tri d c h dhu thi kho8ng
d c h gi3a cdc gid nang khdng n6n l&n hun 1,2 m. ~ d bb
u trl khdng cdch dbu hole tap trung thi can clj,

5.5.3

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vAo tinh hinh thvc td cba cddg trinh can tmqt d6 l ~ cah ~ vj
n trl det gid nang cho phu hqp.

SPn c6ng tdc, g~ gido treo

5.6
5.6.1

Cdc chi tidt cba s8n cdng thc can dvqc chb tqo the0 dQngthidt kd b dang didn hlnh, thdng

dyng, d6 lien kdt v&i gid nang, dB thdo Ihp the0 tSvng cym hoec the0 tivng chi tidt.
5.6.2

a)

C h ~ kdt
n chu sAn cdng tAc the0 cAc chi dan sau:

obi v&i cdng trinh c6 chibu day thAnh (tvbng, vdch) thay dbi lien tyc n6n sir dung kidu dam to8 nan

quqt, dam vbng trong, dam vbng ngoAi cung v&i vbng kbo dv&i vA thanh cgng dd tqo thAnh kdt chu sAn
c6ng tdc;
b) 06i v&i cdng trlnh c6 chibu day thdnh (tvbng, vach) khdng dbi c6 thd sir dyng kidu d h dAn, dam
nh6 vA thanh chbng dd tqo thAnh kdt chu sAn c8ng tdc. Hoec c6 thd dung gid treo tam gidc, vbng trung
tam, thanh cgng vA thanh chbng dd tqo thAnh kdt d u sAn c8ng tdc;
c) ~ bv&i
i twbng (vdch) c6 thd dirng kidu dAn khung giOa cdc twbng, dam vA thanh chbng cung v&i
vAnh gdng c3a cac tvbng (vdch) dd tqo thAnh kdt chu sAn c8ng tAc kidu ddn khung.
5.6.3

chu tqo sen cdng t4c d n phu hqp v&i thvc td thi cdng trvqt tang cdng trinh cy thd vA dap ivng

cdc quy djnh sau:
a) SAn d n g tAc can dQ r6ng dd ngvbi vA cdc phvung tien thi c8ng hoqt dong blnh thdng;

b) SAn cdng tdc dwqc chu tqo bbi dAn khung (hoec dam), gid tam gidc vA van lat can dwqc lien kdt
thAnh mot khbi hoAn chinh, chhc chhn vA 6n djnh v&i gid nlng hoec vAnh gdng. GiOa cac dAn khung
(hoic dam) n6n a5 d c thanh chbng dwng vA chbng ngang dd giO 6n djnh vA tang civng cho sAn;
c) Khi ddn khung (hoec dam) cba sAn c8ng tAc tl vAo vAnh gdng thi can a5 gla d0 b bidm tl hy;

d) SAn cdng tdc vwun ra phla ngoPi c6 b& rong khdng n6n I&n hun 1 000 mm vA c6 Ian can b60 ve;
e) Met sAn cdng t4c n6n IAm bang 96, tbi thidu 18 thuOc nhdm IV vA c6 chieu dAy khhg rhd han40 mm;

f) Klch thv&c cdc chi tidt chju Ivc bang g6 dllng cho sAn c8ng thc can d w c lva c h ~ n
the0 tlnh todn.

G6 dirng cho cAc chi tidt c3a sAn cdng tdc tbi thidu Id thuoc nh6m IV.

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5.6.4

NBU khoJng cdch giea d c gid nang l&n hun 1 200 mm thi dhng dam ddr dd chiu t i i trgng clia

sQnc6ng t4c vQdd lien kbt cAc gih nang v&i nhau, phla tdn dam ddr nen bb trl c4c dQngang dd ddr vdn
Iht mat sAn.
5.6.5

NBU khoJng cdch giea d c gid nang nhd hun 1 200 mm thl nen dhng thhp trbn hoac thhp hinh

dd lien kbt cdc gid nang v&i nhau trong m$t pheng sAn d n g thc. Vhn Iht mat sAn a5 thd dat gbi trylc
tibp len gid nang.

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5.6.6

Nbu tr6n sAn c6rlg thc c6 bb trl xe gobng van chuydn b6 t8ng ngang thi ray gobng can cb Uinh

chac chhn vAo s i n c8ng thc bang lien kbt cwng (hAn hoac bu 16ng).
5.6.7

Giho treo ngoAi u5 bd rong n6n tw 500 mm dbn 800 mm, be rong giho treo trong phy thuec vAo

thuc th thi c8ng c6ng trinh cy thd dd chgn. Nhu dirng thanh treo giho bang thhp thl dweng klnh kh6ng
nen nhd hun 16 mm, khoJng d c h giaa c4c thanh treo d n chgn the0 tlnh todn, bu 18ng thanh treo nen
s3 dung loqi hai dai bc. Vdn Iht m$t sAn giho treo tbi thidu 18 98 nh6m IV day 40 mm. Xung quanh giho
treo can c6 Ian can bHo ve vA bgc lw&i an toAn.

b7.1 Ydu chu chung
5.7.1.1 Thiht bj nang bao gbm: He thbng klch thug Im,tram bum dau, bng dan dau, ty klch.

5.7.1.2Thibt bj nang d n dbng bt$ hoqt dong dbng ddu dd nang toAn b6 c6p pha, &n c6ng thc, giho

treo len cao the0 mot hAnh trlnh nhat djnh, bJo dHm thda man nheng didu kien ky thuat cho qud trinh
thi dng.
5.7.1.3 MBi thiht bj nang trong he thbng can dJm bHo do chfnh xdc cho phep vA c6 kidm dinh hqp

~huan
m&i dwa vQos3 dung dd thi c6ng.
5.7.1.4 Khi s3 dyng thiht bj nang can tuan the0 dong quy djnh cira nhA sJn xu& vQ dim bJo an toAn

lao dong.
5.7.2

Klch thu* llpc (klch)

5.7.2.1 Klch thuq lylc d n thda man &c ydu d u ky thuet sau:

a) Chju dwqc dp lylc 12 MPa vQ duy trl hp lylc 66 trong 5 min kh8ng bj rb ri hoic chHy dau;
b) ~ a kep
u c6 thd khoh dwqc chat chan nhwng cGng d6 thdo lap, linh hoqt;
c) Dw&i tdc dung cSla tHi trgng bang 1,2 lan tHi trgng djnh mwc, lwqng hbi lqi khi khod chat clia dhu
kep dbi v&i loqi klch c6 bi I l n phai kh6ng l&n hun 5 mm, U6i vCli kgi a5 mi&gkep ph& kh8ng 16n hon 3 mm.

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TCVN 9342:2012
5.7.2.2 Tat c i c4c kich dirng db thi cdng trong mot cdng trinh d n phAi ciiin chinh hPnh trinh cda c h h g
d& dw&i t4c dong cba cirng mot tAi trgng thi sai lgch hPnh trinh khbng qu4 2 mm.
5.7.2.3 S6 lwqng t6i thibu cda kich can thibt d& phyc vy cho thi cbng mot cbng tdnh be tbng c6t thbp
toPn kh6i bang c6p pha trwqt c6 thb x4c dinh the0 cbng thwc:

trong 66:
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n IP s6 lwqng kich:
N IP tdng tAi trbng t h h g dwng, lay the0 gi4 trj l&n nhat cda tdng cAc tAi trgng & myc B1, B2 cba
Phy lyc B, tinh bang kilbniutun (kN);
P IP lvc mang tAi tlnh to4n mot klch, lvc nay lay nhd hun l ~ mang
c
tAi cho phbp cba ty klch vP
lvc mang tAi cho phbp cba kich. Lvc mang tAi cho phbp cba ty kich tinh the0 hwdng dan trong Phy lyc
C cba tieu chuan nay, lvc mang tAi cho phbp clja kich lay bang 112 lvc mang tAi qnh rnwc cba kich,
tinh bang kilbniutun (kN).

5.7.2.4can chgn cAch bb tri kich hqp I9 d& tAi trgng thi cbng dwqc phan bb dbu vP can dbi cho tong
kich:
a)

~ 6v&ii Silb, bng kh6i (hoec cbng trinh u5 dqng twung tv: be, thung chwa, th4p nwdc, th4p truybn

hinh ...) nen b6 tri klch c4ch d&uthe0 chu vi hoec bb tri thPnh nh6m c4ch dbu the0 chu vi;
b) Dbi v&i ~Bngcau thang (hoec cbng trinh c6 dqng twung tv) nen b6 tri klch tqi c4c g6c vP c4ch dbu
the0 tSvng cqnh;
c) D6i v&i tam tw&ng (v4ch) nen b6 tri kich c4ch d&u dgc the0 met bang than tw&ng (vdch) vP nen
tr4nh nhcng vj tri c6 16 ch&.
5.7.3

Trgm b m dau

a) Trong tram bum dau, 4p lvc qnh rnwc cba bum dau khbng dwqc nhd hun 12 MPa, Iwu lutqng dau

u5 the x4c djnh d n cw vPo sb lwqng kich hoqt dong vP th&i gian cda mot lan cap dau, (thbng thw&ng
a5 the lva chgn trong phqm vi tSv 25 Ilmin dbn 50 Ilmin;
b) Trong tram bum dau, lwu lwqng vP 4p IQC
qnh rnwc cba van chuybn hwdng vP van trPn d&u phii
bang hoec l&n hun Iwu lwqng vP 4p lvc djnh rnwc cda bum dau, dw&ng klnh tieu chuan cba van khbng
dwqc nhd hun 10 mm;
c) Thirng dau cda tram bum d n de t o i nhiet dd xA e n ban vA c6 lw&i Igc dau. Dung tich c6 lch cba
thirng dau phAi bang tSv 2 lan d6n 3 lan dung tich tdng lwqng chwa dau cba c4c klch vP cda 6ng dHn
dau;

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