H-beam Classification

Muaj ntau qhov tshwj xeeb ntawm H-beam steel khoom, thiab cov txheej txheem kev faib tawm yog raws li hauv qab no. (1) Raws li qhov dav flange ntawm cov khoom, nws tuaj yeem muab faib ua flange dav, nruab nrab flange thiab nqaim flange H-shaped steel. Lub flange dav B ntawm H-shaped steel nrog dav flange thiab nruab nrab flange yog ntau dua lossis sib npaug ntawm lub vev xaib qhov siab H. Lub flange dav B ntawm nqaim flange H-zoo li tus hlau yog li ntawm ib nrab ntawm lub vev xaib qhov siab H. (2) Nws tuaj yeem muab faib ua H-shaped steel beam, H-shaped steel kem, H-shaped steel pawg thiab H-shaped steel beam nrog tuab heev flange raws li kev siv cov khoom. Qee lub sij hawm, qhov sib npaug ntawm cov ceg channel steel thiab cov hlau tsis sib xws T-shaped steel kuj tseem suav nrog H-shaped steel. Feem ntau, H-shaped steel nrog nqaim flange yog siv los ua cov khoom siv nqaj thiab H-shaped steel nrog dav flange yog siv los ua cov khoom siv. Yog li ntawd, lawv tseem hu ua beam H-shaped steel thiab kem H-shaped steel. (3) Nws tuaj yeem muab faib ua welded H-section steel thiab dov H-section steel raws li hom ntau lawm. (4) Nws muab faib ua loj, nruab nrab thiab me H-shaped steel raws li qhov loj me. Feem ntau, cov khoom uas muaj lub vev xaib siab H siab tshaj 700mm yog hu ua loj, 300 ~ 700mm yog hu ua nruab nrab, thiab cov neeg uas muaj lub web qhov siab H tsawg dua 300mm yog hu ua me me. Thaum kawg ntawm xyoo 1990, lub ntiaj teb loj tshaj plaws H-shaped steel web muaj qhov siab ntawm 1200mm thiab flange dav ntawm 530mm.

Thoob ntiaj teb, cov qauv khoom ntawm H-beam steel tau muab faib ua ob pawg, uas yog lub tshuab imperial thiab metric system. Tebchaws Asmeskas, Tebchaws Askiv thiab lwm lub tebchaws siv lub tebchaws Askiv, thaum Tuam Tshoj, Nyiv, Lub Tebchaws Yelemees thiab Russia siv qhov ntsuas ntsuas. Txawm hais tias cov txheej txheem British thiab cov metric system siv cov kev ntsuas sib txawv, feem ntau H-section steels siv plaub qhov ntev los qhia lawv cov kev qhia tshwj xeeb, xws li: lub vev xaib siab h, flange dav b, web thickness d thiab flange thickness t. Txawm hais tias ntau lub teb chaws hauv ntiaj teb qhia qhov loj ntawm H-beam txawv. Txawm li cas los xij, tsis muaj qhov sib txawv me ntsis ntawm qhov loj me thiab qhov siab ntev ntawm cov khoom tsim.