Muaj qhov sib txawv me me ntawm I-beams thiab kab teeb uas zoo li muaj cov khoom qub, suav nrog H-piles, universal beams (UB), W-beams, thiab dav-flange beams. Thaum lawv ob leeg muaj I-shaped cross-section, thiab lo lus "universal" qhia ntau yam kev siv, muaj qee qhov nuances tsim nyog sau cia.
I-beam: I-beam muaj cov flanges sib npaug. Qee zaum cov flanges no yog tapered. Ob txhais ceg ntawm I-beams yog nqaim dua li ob txhais ceg ntawm H-piles thiab W-beams / wide-flange beams. Raws li qhov tshwm sim, lawv tuaj yeem nqa qhov hnyav dua thiab luv dua, ntev txog 100 ko taw, qhov H-piles thiab W-beams tuaj yeem ncav cuag 330 ko taw. I-shaped steel yog ib hom S-shaped steel.
H-piles: H-piles tseem hu ua load-bearing piles. Lawv zoo ib yam li I-beams tab sis hnyav dua. Lawv ob leeg muaj lub ntsej muag flange sib npaug, tab sis H-piles muaj ob txhais ceg dav. Qhov tseem ceeb, H-pile kab teeb yog cov thickness sib npaug ntawm txhua ntu thiab yog li muaj peev xwm tiv taus ntau dua ntsug. H-shaped steel yog ib hom dav flange beam.
W-beams / wide-flange beams: Zoo ib yam li H-beams, W-beams muaj ob txhais ceg dav dua li tus qauv I-beams. Txawm li cas los xij, lawv tsis tas yuav muaj tib lub vev xaib thiab flange thicknesses.
