Astm H Beams

ASTM H BARS yog hom kev lag luam kev lag luam hlau nrog cov khoom siv cov khoom siv zoo dua ntawm Tshooj Ntawv. Nws yog tsim los ntawm kuv {{- Beams los ntawm kev ua kom zoo. Nws muaj npe tom qab qhov tseeb tias nws cov ntawv seem yog qhov zoo ib yam li tsab ntawv Askiv "h".

1. Lub zog loj zog zog

Piv nrog i6 {{- kab teeb, tshooj modulus ntawm h} Cov kab mob loj, thiab hauv tib cov hlau tau txais kev cawmdim.

2. Hloov pauv thiab nplua nuj tsim qauv

Nyob rau hauv tib lub hlaws qhov siab, kev sib npaug ntawm cov qauv steel tuaj yeem yog 50% loj dua li ntawm cov pob zeb ua kom yoog tau yooj yim.

3. Lub teeb txheem tus kheej - qhov hnyav

Piv nrog tus kheej - qhov hnyav ntawm cov vaj tse sib txawv, nws yog sib dua. Qhov txo ntawm cov txheej txheem tus kheej {2} qhov hnyav txo cov zog sab hauv, uas tuaj yeem ua rau cov qauv tsim qauv ntawm tsev qis dua, thiab cov nqi qis dua.

4. Cov txheej txheem siab ruaj khov

Tus qauv hlau, tsuas yog tsim ntawm kub - cov qauv kev ruaj khov, thiab haum rau lub tsev loj loj thiab cuam tshuam cov khoom lag luam loj thiab cuam tshuam. ASTM H cis tau muaj zog tsis kam mus rau kev puas tsuaj ntuj thiab tsim tshwj xeeb rau kev txhim kho tsev hauv cov av qeeg hauv av. Raws li kev txheeb cais, hauv ntiaj teb kev ua kom muaj kev puas tsuaj loj ntawm 7 lossis siab dua, steel qauv mas tsim cov kab mob steel tsawg kawg.

Muaj ntau ntau yam tshwj xeeb ntawm h - Cov khoom siv steel, thiab muaj ob peb txoj kev sib qhia raws li nram no.

(1) Raws li cov flange dav ntawm cov khoom, nws tau muab faib ua dav flange, nruab nrab flange thiab nqaim flange h {1} zoo li cov hlau. Lub flange dav b ntawm flange thiab nruab nrab flange bingth h {5} Daim hlau siab dua los yog sib npaug ntawm cov hlau uas yog ib nrab ntawm lub web siab H.

(2) Raws li kev siv cov khoom lag luam, nws tau muab faib ua h {{{{} Cov tawv tawv tawv tawv. Qee zaum, tib si sib txuas cov hlau channel steel thiab parallel flange t} Daim hlau yog suav nrog hauv qhov chaw ntawm h- zoo li cov hlau. Feem ntau, nqaim flange h {10} Daim hlau yog siv los ua cov steel}}}}} {15} {15}- zoo li cov hlau.

(3) Raws li txoj kev ntau lawm, nws tau muab faib ua welded h- Daim hlau thiab dov h- zoo li cov hlau.

(4) Raws li qhov loj me, nws tau muab faib ua cov loj, nruab nrab, thiab h - tus hlau. Feem ntau, cov khoom lag luam nrog lub web siab h saum 700mm hu tau loj, thiab 700mm yog hu ua web siab tsawg dua 300mm hu ua me me. Txog thaum xyoo 1990, lub ntiaj teb loj tshaj plaws h- nqaj web yog 1200mm, thiab cov Flange Dav tau 530 hli.

Cim npe nrov: ASTM H nqajs, Tuam Tshoj ASTM H Txheems Manufacturers, lwm tus neeg, Hoobkas