Cov khoom siv ntawm purlins feem ntau suav nrog cov khoom web hom thiab lub teeb steel truss hom. Ntawm lawv, lub teeb steel truss hom purlins suav nrog C-hom steel purlins thiab Z-hom steel purlins. Cov yam ntxwv thiab kev siv ntau yam ntawm C-hom steel purlins thiab Z-hom steel purlins yog raws li nram no:
C-hom steel purlins:
Nta: C-hom steel yog tsim los ntawm txias dabtsi yog khoov ntawm kub dov daim hlau, thiab muaj cov yam ntxwv ntawm nyias phab ntsa, lub teeb yuag, zoo heev cross-sectional kev ua tau zoo thiab siab zog. Cov khoom nto ntawm C-hom steel yog du thiab qhov tseeb qhov tseeb yog siab. Cov khoom siv ntau yam yog Q195-345.
Scope ntawm daim ntawv thov: Nws yog dav siv nyob rau hauv purlins thiab phab ntsa kab teeb ntawm steel qauv vaj tse, thiab kuj yuav muab tso rau hauv lub teeb ru tsev trusses, brackets thiab lwm yam lub tsev Cheebtsam. Tsis tas li ntawd, nws tseem tuaj yeem siv rau txhua kab, kab teeb thiab caj npab hauv kev lag luam teeb pom kev lag luam.
Specifications: Cov kev qhia tshwj xeeb ntawm C-hom steel purlins yog qhov dav, xws li (100 × 50 × 20 × 2.5) txog (300 × 75 × 20 × 3.0).
Z-shaped steel purlin:
Nta: Ntxiv rau nws cov khoom zoo xws li lub zog siab thiab txuag steel, Z-shaped steel yog tshwj xeeb tshaj yog yooj yim thiab ceev rau nruab, thiab cov khoom siv kuj yog Q195-345.
Scope ntawm daim ntawv thov: Feem ntau yog siv rau purlins nyob rau hauv steel qauv vaj tse, tshwj xeeb tshaj yog rau purlins ntawm txoj kab nqes loj.
Specifications: Cov specifications ntawm Z-shaped steel purlins zoo ib yam li cov C-shaped steel purlins, uas kuj yog (100 × 50 × 20 × 2.5) rau (300 × 75 × 20 × 3.0).
Qhov sib txawv tseem ceeb ntawm C-shaped steel thiab Z-shaped steel purlins yog tias lawv cov duab sib txawv sib txawv. C-zoo li tus yog 90 degrees, thaum lub Z-zoo li tus yog tsawg tshaj li 90 degrees, roughly 60 mus rau 75 degrees. Yog li ntawd, thaum xaiv purlins, nws yog ib qho tsim nyog yuav tau xav txog lub kaum sab xis ntawm lub purlins raws li txoj kab nqes ntawm lub ru tsev kom siv tag nrho nws txoj kev khoov. Z-hom purlins yog tsim rau cov ru tsev nrog cov nqes hav loj dua, thaum ob hom C thiab Z-hom purlins yog tsim rau cov ru tsev nrog cov nqes hav me me, tab sis kev siv tus nqi ntawm qhov khoov seem modulus ntawm Z-hom purlins yog siab dua.
