Cov qauv European H-beam hom HEA thiab HEB muaj qhov sib txawv tseem ceeb hauv cov duab, qhov loj me thiab daim ntawv thov.
HEA series
HEA yog lub flange dav dav uas kub-kubH-beamhauv tus qauv European, nrog rau lub duab "H"-zoo li tus ntoo khaub lig, ob lub ntsej muag ua haujlwm sib luag (webs) thiab ob lub phaj flange. HEA hom H-beam yog tus cwj pwm los ntawm cov flanges nqaim thiab qhov siab loj, uas ua rau nws haum rau cov sijhawm nrog lub sijhawm khoov loj, xws li choj, tsev siab, thiab lwm yam.1. Tshwj xeeb, HEA series steels feem ntau yog siv rau cov qauv uas xav tau lub zog siab thiab kev tawv, xws li cov thav duab tsev uas ua haujlwm zoo nyob rau hauv ob qho tib si ntsug thiab kab rov tav.
HEB series
Qhov sib piv, HEB hom H-beam kuj yog kub-kub ribbed dav-flange H-beam raws li tus qauv European, tab sis nws cov yam ntxwv txawv ntawm HEA. Thaj chaw hla ntawm HEB hom H-beam tej zaum yuav me dua li ntawm HEA, tab sis nws qhov dav flange dav dua thiab lub vev xaib tuab dua, uas muab HEB hom H-beam kev ua tau zoo dua compressive thiab yog qhov tsim nyog rau cov xwm txheej thov uas xav tau flange stiffness ntau dua2. Qhov no txhais tau tias qee zaum, txawm hais tias lubkev txiav hlathaj tsam ntawm HEB me dua, nws tuaj yeem muab kev txhawb nqa zoo dua vim nws lub flange dav dua thiab lub vev tuab dua.
1. Qhov ntev ntawm qhov seem thiab cov yam ntxwv geometric
•HEA series (lub teeb H-beam)
▪Cov flanges nqaim thiab nyias (flanges) thiab cov webs nyias (cov phaj ntsug nruab nrab).
▪ Lub teeb yuag ib chav ntev thiab thaj chaw me me.
▪ Lub zog tsis tshua muaj zog (kev tiv taus khoov) thiab qhov modulus ntawm seem, tsim nyog rau cov xwm txheej thauj khoom nruab nrab.
•HEB series (tus qauv H-beam)
▪ Cov flanges dav dua thiab tuab dua thiab cov webs tuab dua.
▪Qhov hnyav ntawm chav tsev siab dua thiab thaj chaw hla ntu ntau dua.
▪ Lub zog siab dua ntawm inertia thiab seem modulus, muaj zog dua bending thiab compression tsis kam, tsim rau cov qauv hnyav-load
3. Cov khoom siv kho tshuab thiab cov xwm txheej ntawm daim ntawv thov
HEA
▪ Haum rau cov khoom thauj me me mus rau nruab nrab, xws li cov thav duab cog khoom me me, cov platform me me lossis cov qauv tsis muaj khoom thauj.
▪Kev lag luam zoo, txuag cov nqi khoom siv.
HEB
▪Siv rau hauv cov xwm txheej hnyav, xws li cov nqaj hlau loj ntawm tus choj, cov ncej tsev siab lossis cov khoom siv hnyav.
▪ Muaj zog thiab ruaj khov dua, tab sis tus nqi khoom kim dua.
4. Lwm cov European H-beam series
▪HEM series: cov flanges thiab webs tuab dua, tsim rau cov khoom hnyav heev (xws li cov khoom siv hnyav hauv kev lag luam).
▪IPN/IPE series: Zoo ib yam li HEA/HEB, tab sis nrog rau kev tsim qauv flange sib luag (tsis muaj qhov nqes hav ntawm sab hauv ntawm flange).
Cov cheeb tsam thov
Vim muaj qhov sib txawv ntawm cov yam ntxwv saum toj no, kev siv HEA thiab HEB hom H-beams hauv kev tsim kho tiag tiag kuj tsom mus rau ntau yam sib txawv. HEA H-beam zoo dua rau cov chaw uas xav tau kev ruaj khov thiab lub zog siab, xws li lub hauv paus txhawb nqa ntawm cov tsev loj lossis lub raj tseem ceeb ntawm cov tsev siab. HEB H-beam, vim nws qhov dav flange loj dua thiab lub vev tuab dua, ua haujlwm tau zoo tshwj xeeb thaum raug cov khoom hnyav. Yog li ntawd, nws feem ntau siv rau hauv cov qauv hauv paus ntawm cov tshuab hnyav lossis cov nroj tsuag kev lag luam nrog cov kev xav tau siab dua rau lub peev xwm dais.
Lub sijhawm tshaj tawm: Lub Ob Hlis-20-2025
