Ib tug I-beam yog ib tug tswv cuab ntawm cov qauv uas muaj ib tug I-zoo li tus ntoo khaub lig-section (zoo ib yam li tus ntawv loj "I" nrog serifs) lossis H-zoo li. Lwm cov lus hais txog kev siv tshuab suav nrog H-beam, I-section, universal column (UC), W-beam (sawv cev rau "wide flange"), universal beam (UB), dov steel joist (RSJ), lossis double-T. Lawv yog ua los ntawm hlau thiab siv tau rau ntau yam kev siv hauv kev tsim kho.
Hauv qab no, cia peb piv qhov sib txawv ntawm H-beam thiab I-beam los ntawm qhov kev pom ntawm sab nraud.
H-beam feem ntau siv rau hauv cov haujlwm uas xav tau qhov ntev thiab muaj peev xwm thauj khoom ntau, xws li cov choj thiab cov tsev siab.
H Beam Vs Kuv Beam
Hlau yog cov khoom siv uas hloov tau yooj yim tshaj plaws thiab siv tas li. Ob qho tib si H Beam thiab I Beam yog cov khoom siv feem ntau siv hauv kev tsim kho vaj tse lag luam.
Ob leeg puav leej zoo sib xws rau cov neeg ib txwm, tab sis muaj qhov sib txawv tseem ceeb ntawm ob qho no, uas yog qhov tseem ceeb kom paub.
Qhov kab rov tav ntawm ob qho tib si H thiab I beams hu ua flanges, thaum qhov ntsug hu ua "web." Lub web pab dais lub zog shear, thaum cov flanges tau tsim los kom tiv taus lub sijhawm khoov.
Kuv yog dab tsi, Beam?
Nws yog ib qho khoom siv uas zoo li tus thawj I. Nws muaj ob lub flanges txuas nrog lub web. Sab hauv ntawm ob lub flanges muaj qhov sib txawv, feem ntau, 1: 6, uas ua rau lawv tuab sab hauv thiab nyias sab nraud.
Yog li ntawd, nws ua tau zoo ntawm kev dais qhov hnyav hauv qab qhov siab ncaj qha. Cov nqaj no muaj cov npoo tapered thiab qhov siab dua ntawm qhov sib piv rau qhov dav ntawm lub flange.
Raws li kev siv, I-beam seem muaj nyob rau hauv ntau yam tob, lub web thickness, flange widths, qhov hnyav, thiab seem.
H Beam yog dab tsi?
Nws tseem yog ib qho khoom siv uas zoo li tus H loj uas muaj cov hlau dov. Cov nqaj H-section siv dav rau cov tsev lag luam thiab cov tsev nyob vim lawv qhov sib piv ntawm lub zog thiab qhov hnyav thiab cov khoom siv kho tshuab zoo dua.
Tsis zoo li tus I beam, cov H beam flanges tsis muaj qhov inclination sab hauv, ua rau cov txheej txheem vuam yooj yim. Ob lub flanges muaj tuab sib npaug thiab sib luag.
Nws cov yam ntxwv ntawm kev txiav ntoo zoo dua li I beam, thiab nws muaj cov khoom siv kho tshuab zoo dua ib chav qhov hnyav uas txuag cov khoom siv thiab tus nqi.
Nws yog cov khoom siv nyiam rau cov platforms, mezzanines, thiab cov choj.
Thaum xub thawj saib, ob qho tib si H-section thiab I-section steel beams zoo sib xws, tab sis qee qhov sib txawv tseem ceeb ntawm ob lub steel beams no yog qhov tseem ceeb kom paub.
Duab
Tus nqaj H zoo li cov duab ntawm Capital H, thaum tus nqaj I yog cov duab ntawm Capital I.
Kev Tsim Khoom
Cov I-beams raug tsim ua ib daim thoob plaws, thaum H-beam muaj peb daim hlau welded ua ke.
Cov H-beams tuaj yeem tsim tau rau txhua qhov loj me uas xav tau, thaum lub peev xwm ntawm lub tshuab milling txwv tsis pub tsim cov I-beams.
Cov flanges
Cov flanges H beam muaj tuab sib npaug thiab sib luag, thaum cov flanges I beam muaj cov flanges tapered nrog qhov inclination ntawm 1: txog 1:10 rau qhov muaj peev xwm thauj khoom zoo dua.
Qhov tuab ntawm lub vev xaib
Lub nqaj H muaj lub vev xaib tuab dua li piv rau lub nqaj I.
Tus naj npawb ntawm daim
Lub nqaj h-section zoo li ib daim hlau xwb, tab sis nws muaj ib lub bevel uas peb daim hlau tau welded ua ke.
Txawm hais tias I-section beam tsis yog tsim los ntawm kev vuam lossis riveting hlau ntawv ua ke, nws tsuas yog ib ntu ntawm hlau tag nrho.
Qhov hnyav
Cov nqaj H hnyav dua li cov nqaj I.
Qhov Nrug Deb Ntawm Flange kawg Mus Rau Web's centre
Hauv seem I, qhov deb ntawm qhov kawg ntawm flange mus rau qhov chaw nruab nrab ntawm Web yog tsawg dua, thaum nyob hauv seem H, qhov deb ntawm qhov kawg ntawm flange mus rau qhov chaw nruab nrab ntawm Web yog siab dua rau seem zoo sib xws ntawm I-beam.
Lub zog
Lub nqaj h-section muab lub zog ntau dua rau ib chav qhov hnyav vim yog thaj chaw hla kev zoo dua thiab qhov sib piv zoo ntawm lub zog rau qhov hnyav.
Feem ntau, cov nqaj hlau I-section yog tob dua li dav, ua rau lawv zoo heev rau kev dais lub nra hnyav hauv qab qhov kev sib txhuam hauv zos. Ntxiv mus, lawv hnyav dua li cov nqaj hlau H-section, yog li lawv yuav tsis ris lub nra hnyav ntau li H-beams.
Kev Rigidity
Feem ntau, cov nqaj H-section yog cov khoom ruaj khov dua thiab tuaj yeem nqa tau lub nra hnyav dua li cov nqaj I-section.
Kev txiav hla
Lub nqaj I-section muaj qhov nqaim hla-seem uas tsim nyog rau kev dais cov khoom thauj ncaj qha thiab kev ntxhov siab tensile tab sis tsis zoo tiv thaiv kev sib ntswg.
Piv rau qhov ntawd, H beam muaj qhov dav dua li I beam, uas tuaj yeem tswj tau qhov hnyav ncaj qha thiab kev ntxhov siab tensile thiab tiv taus kev sib ntswg.
Yooj yim ntawm kev vuam
Cov nqaj hlau H-section yooj yim dua rau kev vuam vim lawv cov flanges sab nraud ncaj dua li cov nqaj hlau I-section. Cov nqaj hlau H-section muaj zog dua li cov nqaj hlau I-section; yog li nws tuaj yeem ris lub nra hnyav dua.
Lub Sijhawm ntawm Inertia
Lub sijhawm ntawm Inertia rau ib lub beam txiav txim siab nws lub peev xwm los tiv taus kev khoov. Qhov siab dua nws yuav, qhov tsawg dua lub beam yuav khoov.
Cov nqaj H-section muaj cov flanges dav dua, siab dua lateral stiffness, thiab lub zog ntau dua ntawm inertia dua li cov nqaj I-section, thiab lawv tiv taus kev khoov ntau dua li cov nqaj I.
Kev ncua sijhawm
Ib lub nqaj I-section tuaj yeem siv rau qhov ntev txog li 33 txog 100 feet vim muaj kev txwv ntawm kev tsim khoom, thaum lub nqaj H-section tuaj yeem siv rau qhov ntev txog li 330 feet vim nws tuaj yeem ua rau txhua qhov loj me lossis qhov siab.
Kev Lag Luam
Ib qho nqaj H-section yog ib ntu pheej yig dua nrog kev txhim kho cov khoom siv kho tshuab dua li ib qho nqaj I-section.
Daim Ntawv Thov
Cov ntoo H-section beams zoo tagnrho rau mezzanines, choj, platforms, thiab kev tsim kho cov tsev nyob thiab cov tsev lag luam. Lawv kuj tseem siv rau cov ncej uas nqa tau lub nra, lub trailer, thiab lub txaj tsheb thauj khoom.
Cov nqaj hlau I-section yog qhov seem uas tau txais yuav rau cov choj, cov tsev hlau, thiab kev ua cov thav duab txhawb nqa thiab cov kem rau cov elevators, hoists thiab lifts, trolleyways, trailers, thiab cov txaj tsheb thauj khoom.
Lub sijhawm tshaj tawm: Cuaj hlis-10-2025
