Kev tiv thaiv kev nyab xeeb rau Formwork Support Systems: Cov ntsiab lus tseem ceeb rau Standardizing "Steel Pipe and Coupler-Type Scaffolding"

I. Lub hauv paus rau kev sau ua ke:
1. Technical Specifications for Safety of Construction Formwork JGJ 162-2008
2. Technical Safety Standards for Socket-Type Disk-Coupler Steel Pipe Scaffolding in Construction JGJ/T 231-2021
3. Cov kev cai ntawm Kev Tswj Xyuas Kev Nyab Xeeb ntawm Sub- tej yaam num thiab Sub- cov khoom uas muaj kev pheej hmoo siab dua Order No. 37 ntawm Ministry of Housing and Urban-Rural Development
4. Steel Pipe Scaffolding Couplers"GB 15831
5. Qhov (socket) -Hom Disk-Coupler Steel Pipe Scaffolding ComponentsJG/T 503.

 

II. Hlau Yeeb Nkab Coupler -Hom Scaffolding:
(I) Kev tsim kho hauv paus:

1. Kev kho mob hauv paus:
① Lub subgrade yuav tsum ruaj khov thiab qib, nrog rau kev muaj peev xwm ua tau raws li qhov yuav tsum tau ua;
② yuav tsum tau muab cov kav dej thiab cov kwj deg; txwv tsis pub muaj dej ntau ntxiv;
③ Rau scaffolding siab tshaj 8 m nyob rau hauv qhov siab, yuav tsum tau poured ib tug pob zeb puag;
④ Scaffolding tsuas yog tsim tom qab lub hauv paus tau dhau kev tshuaj xyuas

2. Kev teeb tsa ntawm Base Phaj thiab Bases:
① Lub hauv paus phaj yuav tsum tau: Ntev ntawm yam tsawg kawg yog ob spans, dav Ntau tshaj los yog sib npaug rau 150 hli, thickness Ntau tshaj los yog sib npaug rau 50 hli;
② Cov kev cai hauv paus: Muaj 150 × 150 × 6 mm steel phaj welded rau lub tes tsho steel.

③ Txhim kho qhov yuav tsum tau ua: Lub load yuav tsum tau txais kev txhawb nqa ntawm qhov nruab nrab ntawm lub shim; lub hauv paus yuav tsum haum snugly tiv thaiv lub shim, tsis muaj seem tshuav unsupported.

 

 

3. Kev Kho Mob Tshwj Xeeb:
① Thaum cov kab hauv qab tsis nyob rau tib qhov siab, cov kab cheb ntawm qhov siab siab yuav tsum txuas mus rau qhov siab qis dua los ntawm ntau dua lossis sib npaug rau 2 bays.
② Qhov siab qhov sib txawv yuav tsum tsawg dua lossis sib npaug li 1 m, thiab qhov kev ncua deb ntawm kem mus rau sab sauv ntawm txoj kab nqes yuav tsum siab dua lossis sib npaug li 0.5 m.
③ Thaum txhawb nqa hauv pem teb slabs, hauv pem teb slab yuav tsum muaj txaus load - bearing peev xwm los txhawb lub load los ntawm lub Upper pem teb.

 

(2) Kab rov tav thiab ntsug cov tswv cuab:
1. Kev teeb tsa cheb tuav (yuav tsum muaj cov kev cai):
① Qhov siab: Tsawg dua los yog sib npaug li 200 mm saum av theem
② Kev teeb tsa ib ntus: cov tswv cuab longitudinal ua ntej, ua raws li cov tswvcuab transverse
③ Yuav tsum tau: yuav tsum tau ntsia tsis tu ncua nyob rau hauv ob qho tib si longitudinal thiab transverse cov lus qhia, nrog bracing txuas nyob rau hauv ob qho tib si cov lus qhia.

2. Cov kev xav tau rau kev teeb tsa ntawm cov tswv cuab kab rov tav:
① Kab rov tav cov tswv cuab nyob rau hauv ob qho tib si longitudinal thiab transverse cov lus qhia yuav tsum tas mus li nyob rau hauv ob qho tib si cov lus qhia, ncua tsis pub tsawg tshaj peb bays
② Sib nrug tsawg dua lossis sib npaug li 1.8 m (rau siab - nce formwork); ua raws li cov qauv tsim
③ Cov pob qij txha yuav tsum staggered los ntawm ntau dua los yog sib npaug li 500 hli thiab nyob tsis ze tshaj li ib -feem peb ntawm qhov ntev ntawm qhov sib nrug ntawm lub ntsiab
④ Lap ntev Ntau dua lossis sib npaug li 1 m, ruaj ntseg nrog peb qhov sib hloov txuas.

3. Cov kev xav tau rau kev teeb tsa ntawm cov tswv cuab ntsug:
① Extension method: Lap pob qij txha raug txwv nruj; pob qij txha yuav tsum tau siv.
② Joint offset: Lub pob tw pob qij txha ntawm cov tswv cuab ntsug uas nyob ib sab yuav tsum tsis txhob sib dhos; lawv yuav tsum tau offset los ntawm ntau tshaj los yog sib npaug rau 500 mm.
③ Txoj hauj lwm sib koom: Qhov kev ncua deb ntawm lub ntsiab ntawm lub ntsiab yuav tsum tsawg dua los yog sib npaug rau ib qho -feem peb ntawm qhov sib nrug.
④ Ntau-storey shoring: Cov ntsiab lus txhawb nqa ntawm cov tsev sab sauv thiab sab qis yuav tsum nyob ntawm tib txoj kab ntsug.
⑤ Kev txwv tsis pub siv sib xyaw: Cov tswv cuab ntsug ntawm qhov sib txawv yuav tsum tsis txhob siv ua ke.

4. Kev txhim kho cov kev txhawb nqa kho tau (yuav tsum tau muaj):
① Threaded pas nrig yuav tsum protrude tsis tshaj 200 mm los ntawm sab saum toj ntawm lub steel raj.
② Qhov kev tshem tawm ntawm sab nraud ntawm txoj kab uas hla ntawm cov hlua khi thiab lub taub sab hauv ntawm lub raj hlau yuav tsum tsis pub tshaj 3 hli.
③ Qhov sib txawv ntawm U-zoo li tus txhawb nqa thiab lub purlin yuav tsum tau wedged nruj.
④ Xyuas kom meej tias sab sauv thiab sab qis yog coaxial thaum lub sijhawm teeb tsa.

 

 

(3) Bracing Arrangement:
1. Vertical bracing:
① Outer perimeter: Nruab nruam nruam bracing los ntawm qab mus rau sab saum toj
② Central cheeb tsam: Nruab nruam nruam bracing ntawm 10-meter intervals nyob rau hauv ob qho tib si longitudinal thiab transverse cov lus qhia
③ Dav: 4-6 meters
④ Lub kaum sab xis: 45℃-60 degree
⑤ Lap Joint: Lap length Ntau dua lossis sib npaug li 500 mm, ruaj ntseg nrog ob txoj hlua txuas.

2. Kab rov tav Bracing:
① Kev teeb tsa txoj haujlwm: nyob rau sab saum toj ntawm txoj hlua khi thiab ntawm cov ntiv taw ntiv taw
② Storey qhov siab 8-20 m: Ntxiv ib qho kab rov tav brace ntawm ob kab kab rov tav ntawm lub bay saum toj kawg nkaus
③ Storey qhov siab> 20 m: Ntxiv ib qho kab rov tav brace ntawm kab rov tav braces ntawm txhua qhov ntawm ob sab saum toj
④ Upright spacing Tsawg dua los yog sib npaug li 1.2 m: Yuav tsum tau nruab rau saum thiab hauv qab; intermediate spacing Tsawg dua los yog sib npaug li 4.8 m.

 

 

 

(4) Perimeter Tie-ins thiab Edge Protection:
1. Qhov yuav tsum tau muaj rau kab - khawm khi -ins:
① Cov xwm txheej tshwm sim: Scaffold qhov siab> 5 m
② Kab rov tav nrug: 6-9 m
③ Vertical nrug: 2-3 m
④ Tie-nyob rau hauv txoj kev: Rigid kev twb kev txuas rau lub tsev qauv siv ib kem-txoj kev khawm
⑤ Muaj nuj nqi: Txhawm rau txhim kho tag nrho kev ruaj ntseg thiab tiv thaiv sab nraud deformation.
2. Yuav tsum muaj kev tiv thaiv ntug:
① Kev ntsuas nkag: qhov twg qhov siab tshaj 2 m, kev ntsuas kev nkag rau cov neeg ua haujlwm yuav tsum tau muab
② Scaffold Planks: Qhov chaw ua hauj lwm yuav tsum tau them tag nrho, nrog kev ncua deb ntawm phab ntsa tsawg dua lossis sib npaug li 150 hli; tsis tso cai rau overhanging planks
③ Kev Nyab Xeeb Kev Nyab Xeeb: 5 m Tsawg dua lossis sib npaug ntawm H < 10 m: ib kab kab rov tav kev nyab xeeb yuav tsum tau nruab rau theem nrab; H Ntau dua lossis sib npaug li 10 m: ib kab kab rov tav kev nyab xeeb yuav tsum tau muab tso rau ntawm qhov ntev ntawm 6 m; cov no yuav tsum tau nruab ib txhij nrog lub erection ntawm scaffold.
(V) Txais thiab Kev Tshuaj Xyuas:
1. Kev soj ntsuam Milestones:

① Thaum ua tiav ntawm lub hauv paus thiab ua ntej erection ntawm scaffolding
② Thaum lub scaffolding tau mus txog qhov siab tsim
③ Tom qab cua daj cua dub 6 los nag hnyav heev
④ Hauv cheeb tsam txias, tom qab av tau thawed
⑤ Tom qab lub scaffolding tsis siv ntau tshaj ib hlis.

2. Cov neeg soj ntsuam:
① Tus thawj tswj kev ua haujlwm ntawm tus neeg cog lus loj lossis tus kws tshaj lij kev tso cai
② Tus thawj tswj kev ua haujlwm ntawm tus neeg ua haujlwm subcontractor
③ Tus thawj tswj xyuas qhov project thiab tus thawj tswj xyuas qhov project technical
④ Cov neeg ua haujlwm muaj lub luag haujlwm los tsim cov phiaj xwm tshwj xeeb
⑤ Cov neeg ua haujlwm saib xyuas kev noj qab haus huv thiab kev nyab xeeb puv sijhawm