Qib 4
Qhov hluav taws kub tsis kam ntawm steel qauv vaj tsev feem ntau yog muab faib ua plaub theem, thiab cov theem tshwj xeeb nyob ntawm qhov kev siv ntawm lub tsev, hluav taws kub nyhiab, thiab kev ua tau zoo combustion thiab hluav taws kub tsis kam ntawm cov khoom. Cov vaj tsev uas muaj qhov hluav taws kub ua ntej-theem feem ntau yog tsim los ntawm cov pob zeb ua vaj tse los yog cov qauv sib xyaw ua ke ntawm cov phab ntsa cib thiab cov pob zeb ua vaj tse; cov tsev uas muaj cov hluav taws kub tiv thaiv qib thib ob suav nrog cov qauv sib xyaw ua ke ntawm cov qauv steel ru tsev trusses, cov pob zeb muaj zog ntxiv lossis cov phab ntsa cib. Cov vaj tsev uas muaj qhov hluav taws kub tiv thaiv qib thib peb feem ntau yog cov cib-ntoo cov qauv tsim los ntawm cov ru tsev ntoo thiab cov phab ntsa cib. Rau cov qauv hlau, lawv cov qib hluav taws kub kuj tseem muab faib ua plaub theem no, yuav tsum tau siv cov khoom siv hluav taws xob hauv tsev uas ua tau raws li cov kev cai sib xws thiab cov khoom siv uas ua tau raws li qhov kev ua haujlwm tsis ruaj khov nyob rau qee lub sijhawm raws li qhov sib txawv hluav taws kub phom sij rau xyuas kom muaj kev nyab xeeb ua tau zoo thaum muaj hluav taws kub. 12
Tsis tas li ntawd, raws li "Building Design Fire Protection Code", qhov kev tiv thaiv hluav taws kub ntawm lub tsev yog txiav txim siab los ntawm kev ua tau zoo ntawm kev sib txuas thiab hluav taws kub tsis kam ntawm cov khoom siv hauv tsev (xws li kab teeb, kab, pem teb slabs, phab ntsa, thiab lwm yam). Cov vaj tsev uas muaj qhov hluav taws kub-resistant thawj theem muaj qhov hluav taws kub zoo tshaj plaws, thaum lub tsev nrog cov hluav taws kub tiv thaiv qib plaub muaj qhov hluav taws kub tsis zoo. Hauv kev siv tswv yim, cov txheej txheem kev tiv thaiv hluav taws kub rau cov txheej txheem steel pab kom muaj kev nyab xeeb ntawm lub neej thiab khoom.