Muaj ntau yam khoom tshwj xeeb ntawm H-beam, thiab muaj ntau txoj hauv kev faib tawm
(1) Raws li qhov dav ntawm flange ntawm cov khoom tau muab faib ua flange dav, nruab nrab flange thiab nqaim flange H-beam. Qhov dav thiab nruab nrab flange H-beam flange dav B yog ntau dua lossis sib npaug ntawm lub vev xaib qhov siab H. Nqaim flange H-beam flange dav B yog kwv yees li sib npaug ntawm ib nrab ntawm lub vev xaib qhov siab H.
(2) Raws li kev siv cov khoom tau muab faib ua H-beam, H-beam kem, H-beam pawg, tuab heev flange H-beam. Qee lub sij hawm kuj tseem sib npaug ntawm cov ceg channel steel thiab cov kab sib txuas flange d-beam steel kuj suav nrog hauv H-beam. Feem ntau nqaim flange H-beam raws li cov khoom siv beam, dav flange H-beam raws li cov khoom siv, raws li cov kab H-beam thiab kem H-beam hu ua
(3) raws li txoj kev tsim khoom yog muab faib ua welded H-beam thiab dov H-beam.
(4) Raws li qhov tshwj xeeb qhov loj me yog muab faib ua loj, nruab nrab thiab me H-beam. Feem ntau lub vev xaib qhov siab H hauv 700mm saum toj no cov khoom yog hu ua loj, 300 ~ 700mm yog hu ua nruab nrab, tsawg dua 300mm yog hu ua me me. Thaum kawg ntawm xyoo 1990, lub ntiaj teb loj tshaj plaws H-beam web qhov siab ntawm 1200mm, flange dav ntawm 530mm.
Thoob ntiaj teb, cov khoom txheem ntawm H-beam muab faib ua ob pawg: lub imperial system thiab metric system. Tebchaws Asmeskas, Tebchaws Askiv thiab lwm lub tebchaws siv lub tebchaws Askiv, Tuam Tshoj, Nyiv, Lub Tebchaws Yelemees thiab Russia thiab lwm lub tebchaws uas siv cov txheej txheem metric, txawm hais tias lub tebchaws Askiv thiab cov metric system siv cov ntsuas sib txawv, tab sis H-beam steel feem ntau siv nyob rau hauv plaub qhov ntau thiab tsawg los qhia lawv cov specifications, uas yog: lub web qhov siab h, flange dav b, lub web thickness d thiab lub flange thickness t. Txawm tias lub ntiaj teb no txawv teb chaws ntawm qhov loj ntawm qhov loj ntawm H-beam loj ntawm cov qauv ntawm kev qhia. Tab sis qhov ntau ntawm qhov loj me specifications thiab me me kam rau ua ntawm cov khoom tsim tsis txawv ntau.
