Kem I-beams yog ib qho tshiab nyob rau hauv daim teb ntawm dov hlau, uas tau sai heev. Xws li cov koob npe yog vim qhov tseeb tias cov yam ntxwv ntawm cov qauv no tso cai rau lawv siv rau hauv cov huab cua hnyav tshaj plaws.
Kev piav qhia ntawm cov khoom
Columned I-beam yog cov qauv hlau, uas yog ib qho ntawm cov khoom siv ntev nrog H-shaped profile ntawm transverse hom. Cov khoom no yog ua los ntawm unalloyed hlau ntawm zoo zoo. Txawm li cas los xij, cov qauv hlau, uas muaj cov alloying tsawg, nrog rau lub zog siab, kuj tuaj yeem siv tau. Rau zus tau tej cov columned I-beams, kub dov yog siv, cov txheej txheem ntawm uas yog nqa tawm nyob rau hauv steel dov mills. Tam sim no, muaj kev faib tawm dav dav thiab sau npe. Raws li daim ntawv no, cov khoom zoo li no tau cim nrog tsab ntawv "K", thiab tag nrho cov kev xav tau rau qhov zoo ntawm cov khoom thiab cov txheej txheem ntawm nws cov khoom raug sau tseg hauv GOST 26020-83.
Sib txawv ntawm lwm yam I-beams
I-nqaj kab hom muaj qee qhov sib txawv los ntawm lwm qhov kev hloov pauv ntawm cov khoom no. Mainqhov sib txawv nyob rau hauv qhov tseeb hais tias cov phab ntsa thickness ntawm txhua kab yog ntau dua li ntawm lwm cov qauv. Ua tsaug rau qhov no, peb tuaj yeem hais nrog kev ntseeg siab tias lub zog thiab rigidity ntawm cov khoom no ntau dua. Tsis tas li ntawd, nws nthuav dav dav ntawm nws txoj kev siv. Txawm li cas los xij, tseem muaj qhov tsis zoo ntawm no. Raws li phab ntsa thickness nce, yog li qhov loj ntawm ib kem.
Piv txwv li, ib qho I-nqaj nyob rau hauv seem sib npaug 30 cm cim "B" yuav hnyav li 33 kg. Tab sis yog tias peb coj tib seem rau hom kab, ces nws qhov hnyav yuav yog li 87 kg (ob zaug ntau dua). Ib qho ntawm cov yam ntxwv sib txawv kuj tseem nyob hauv qhov tseeb tias lub ntsej muag beam tuaj yeem nyob ntawm qhov sib txawv. Qhov no txhais tau hais tias nws tuaj yeem hloov pauv rau txhua daim ntawv thov, uas yuav ntxiv dag zog thiab nruj ntawm cov qauv ntawm tus kheej.
Ib qho ntawm qhov sib txawv tseem ceeb thiab qhov zoo ntawm cov kab teeb no yog qhov sib txuas tsim tau zoo. Qhov no tso cai rau cov kab teeb los tiv thaiv tsis tau tsuas yog nrog cov khoom zoo li qub, tab sis kuj nrog cov dynamic loads. Hom kev thauj khoom no tuaj yeem tshwm sim vim muaj ntau yam. Qhov no feature tau coj mus rau qhov tseeb hais tias columned I-beams tau ntse siv nyob rau hauv cov cheeb tsam uas muaj zog seismic kev ua si.
Daim ntawv thov txiaj ntsig
Tus naj npawb ntawm qhov zoo ntawm cov khoom no yog qhov loj heev, tab sis muaj ob peb lub ntsiab ntawm lawv.
- Qhov txiaj ntsig thawj zaug thiab qhov tseem ceeb tshaj plaws yog qhov loj ntawm kev lag luam uas koj tuaj yeem ua tausiv cov qauv no.
- Qhov zoo thib ob yog, tau kawg, qib siab ntawm lub zog thiab nruj uas I-beam muaj.
- Vim qhov tseeb tias txhua yam khoom tuaj yeem tiv taus qhov hnyav, tag nrho cov kev txhawb nqa tuaj yeem txo qis, uas txuag tau cov khoom tseem ceeb.
- siab mechanical resistance.
- Kev pabcuam lub neej ntawm columned I-beams ntev heev.
- Cov qauv hlau no tiv thaiv kom tsis txhob tawm tsam xws li tshuaj lom neeg lossis lom.
- Muaj peev xwm ntawm pob tw-rau-lub taub qab vuam ntawm cov qauv. Qhov no ua kom cov txheej txheem kho kom nrawm heev.
Koj tuaj yeem ntxiv tias qhov ntev ntawm cov khoom tiav yog li ntawm 4 txog 12 m.
Nqi thiab daim ntawv thov
Kev siv I-beams raws li GOST 26020-83, uas yog ua los ntawm cov hlau zoo, yog qhov dav heev. Nws yog ib nqi sau cia hais tias cov khoom yog xam tau tias yog tshiab nyob rau hauv kev tsim kho kev lag luam, vim hais tias nws cov Scope yog tas li loj hlob. Tam sim no, cov khoom siv hauv tsev no tau pom nws daim ntawv thov loj tshaj plaws hauv kev tsim kho ntawm txhua kab thiab kev txhawb nqa ntsug, uas tau nruab rau hauv cov tsev nyob lossis cov chaw tsim khoom. Txawm li cas los xij, kev tsim khoom ntawm lwm yam khoom siv thauj khoom los ntawm cov khoom siv no kuj yog qhov xav tau.
Yog tias peb tham txog txoj cai tswj hwm tus nqi ntawm cov khoom no, nws yog qhov xav tsis thoob. Txawm tias spectrum ntawm kev sivI-beams raws li GOST 26020-83 yog dav heev, nws tus nqi qis. Piv txwv li, tus nqi rau ib tuj ntawm cov khoom siv npaj txhij yog kwv yees li ntawm 39,000 txog 51,000 rubles. Ntawm tus nqi no, koj tuaj yeem yuav tus qauv zoo sib xws ntawm txhua hom.
