Kev Tsim Kho Ntawm 126-Meter Space Frame Span Project Ntawm Steel Space Ncej Fais Fab Cog
Qhov project no yog ib lub voj voog ib puag ncig muaj qhov chaw ncej / qhov siab 55 meters / tag nrho ntev 900 meters / tag nrho ncua 65 meters.
1. Ob qhov kawg ntawm tag nrho cov kav hlau steel yuav tsum raug kaw, thiab cov phaj sealing yuav tsum tau muab ntsia ua ntej lawv raug kaw kom tsis txhob muaj corrosion hauv cov kav dej.
2. Cov khoom tiav yuav tsum tau siv los ntawm kev tshem tawm xeb, kom lub ntsej muag ntawm cov hlau nthuav tawm cov xim hlau, qib kev tshem tawm xeb tsis qis dua Sa2.5, thiab cov xeb tshem tawm zoo yuav tsum ua raws li cov kev cai ntawm GB8923.
3. Tom qab cov hlau yog derusted, ob lub tsho ntawm 80μm epoxy zinc-nplua nuj primer, ib 70μm epoxy micaceous hlau nruab nrab xim, thiab hluav taws kub retardant xim yog siv.Qhov hluav taws kub tiv thaiv qib ntawm qhov project no yog ob, qhov tsis muaj hluav taws kub tiv thaiv txheej yog 25 hli, thiab lub sijhawm tiv thaiv hluav taws yog 1.5h.Hluav taws kub retardant coatings yuav tsum muaj ib daim ntawv ntsuam xyuas thiab daim ntawv tso cai ntau lawm tso cai los ntawm lub teb chaws kuaj lub koom haum rau lawv cov hluav taws kub.Qhov zoo thiab kev tsim kho ntawm cov hluav taws kub retardant coatings siv yuav tsum ua raws li cov kev cai ntawm "Technical Specifications for Fire Protection of Building Steel Structures" (CECS200:2006) thiab "Fireproof Coatings for Steel Structures" (GB14907-2002).
4. Cov khoom siv hauv tsev yuav tsum tau khaws cia tsis tu ncua.Nyob rau hauv lub neej tsim kev pab cuam lub neej ntawm cov qauv tseem ceeb, lub voj voog ntawm cov txheej txheem ntawm cov txheej txheem steel uas tau raug txheeb xyuas thiab pom zoo rau kev siv yuav tsum tsis txhob ntev tshaj qhov kev pab cuam lub neej ntawm cov khoom siv;Cov xim pleev xim puas ntawm cov khoom siv hauv tsev yuav tsum tau pleev xim rau lub sijhawm.
5. Thaum cov kab sib chaws nyob ib puag ncig, nws yuav tsum tau txuas nrog cov qauv qub kom sib npaug ntawm txoj kab rov tav.
