Kev xaiv ntawm H beams yuav tsum xub ua raws li peb yam tseem ceeb uas tsis tuaj yeem sib tham, vim tias cov no cuam tshuam ncaj qha rau seb cov khoom puas tuaj yeem ua tau raws li cov qauv tsim.
Khoom Qib： Cov khoom siv ntau tshaj plaws rau H beams yog carbon structural steel (xws liQ235B, Q355B H Beamnyob rau hauv Suav qauv, los yogA36, A572 H Beamnyob rau hauv American qauv) thiab low-alloy high-strength steel. Q235B / A36 H Beam yog tsim rau kev tsim kho pej xeem (xws li, cov tsev nyob, cov chaw tsim khoom me) vim nws cov weldability zoo thiab tus nqi qis; Q355B / A572, nrog lub zog muaj zog ntau dua (≥355MPa) thiab lub zog tensile, yog qhov zoo dua rau cov haujlwm hnyav xws li txuas hniav, kev cob qhia loj, thiab lub tsev siab siab, raws li nws tuaj yeem txo qhov ntu ntu ntawm cov nqaj loj thiab txuag chaw.
Dimensional Specifications: H beams yog txhais los ntawm peb qhov tseem ceeb: qhov siab (H), dav (B), thiab lub web thickness (d). Piv txwv li, H beam sau tias "H300 × 150 × 6 × 8" txhais tau hais tias nws muaj qhov siab ntawm 300mm, dav ntawm 150mm, web thickness ntawm 6mm, thiab flange thickness ntawm 8mm. Me me-loj H beams (H≤200mm) feem ntau yog siv rau theem nrab xws li pem teb joists thiab muab faib kev txhawb nqa; nruab nrab-qhov loj qhov sawv daws yuav (200mm＜H＜400mm) lub tsev loj thiab siv rau ntau lub ru tsev. H beams loj loj (H≥400mm) yog qhov tseem ceeb rau kev ua haujlwm siab siab, txuas txuas ntev, thiab cov cuab yeej siv khoom lag luam.
Mechanical Performance: Tsom ntsoov rau cov ntsuas xws li lub zog tawm los, lub zog tensile, thiab cuam tshuam toughness. Rau cov dej num hauv cheeb tsam txias (xws li, sab qaum teb Tuam Tshoj, Canada), H beams yuav tsum xeem dhau qhov ntsuas kub ntawm qhov ntsuas kub (xws li -40 ℃ cuam tshuam toughness ≥34J) kom tsis txhob nkig tawg hauv qhov txias txias; rau thaj tsam seismic, cov khoom uas muaj cov khoom zoo (elongation ≥20%) yuav tsum tau xaiv los txhim kho cov qauv av qeeg.
