Rebar yog ib lub npe nrov rau kub dov ribbed steel tuav. Qib ntawm qhov kub-kuav los tiag steel bar muaj HRB thiab qhov tsawg kawg nkaus yield point ntawm qib. H, R, thiab B yog thawj tsab ntawv Askiv ntawm peb lo lus, Hotrolled, Ribbed, thiab Bars, feem. Kub-dov ribbed steel tuav tau muab faib ua peb qib: HRB335 (qib qub yog 20MnS), HRB400 (qib qub yog 20MnSiV, 20MnSiNb, 20Mnti) thiab HRB500.
Txheej txheem cej luam
Fine-grained hot-rolled steel bar Thawj tsab ntawv ntawm Lus Askiv (Fine) ntawm "zoo" yog ntxiv rau lub npe ntawm cov khoom kub-dov ribbed steel bar. zoo li:
HRBF335HRBF400, HRBF500. Cov qib siv tau rau cov qauv seismic nrog cov kev xav tau siab dua yog: ntxiv E tom qab cov qib uas twb muaj lawm (piv txwv li: HRB400E
HRBF400E)
Kev siv tseem ceeb: dav siv hauv kev tsim kho vaj tse xws li tsev, txuas hniav, txoj kev, thiab lwm yam.
Qhov txawv ntawm rebar thiab round bar: Qhov txawv ntawm rebar thiab puag ncig bar yog tias muaj cov tav tav ntev thiab cov kab hla hla ntawm qhov chaw, feem ntau muaj ob txoj kab ntev ntev thiab cov kab sib tshooj sib npaug sib npaug ntawm qhov ntev ntawm kev taw qhia. Rebar yog ib qho me me steel, feem ntau yog siv rau cov pob txha ntawm cov pob zeb ua vaj tse. Hauv kev siv, qee qhov kev siv lub zog, khoov deformation kev ua tau zoo thiab cov txheej txheem vuam kev ua tau zoo yog xav tau. Cov khoom siv raw khoom siv rau kev tsim cov rebars yog carbon structural steel lossis low-alloyed structural steel kho los ntawm sedation.
Cov qauv hlau, cov hlau tiav tiav tau xa tuaj rau hauv kub dov, normalized lossis kub dov lub xeev.
hom
Muaj ob txoj hauv kev uas feem ntau siv rau rebar; ib qho yog cais los ntawm cov duab geometric, thiab muab cais los yog cais raws li cov duab sib dhos ntawm cov kab hla hla thiab qhov sib nrug ntawm cov tav.
Hom, xws li British Standard (BS4449), lub rebar muab faib ua | type, kuv type. Qhov kev faib tawm no feem ntau qhia txog kev ua haujlwm ntawm lub rebar. Ob yog
Kev faib tawm (qib), xws li kuv lub teb chaws tus qauv siv tam sim no, rebar yog (GB1499.2-2007) hlau pas nrig yog 1499.1-2008), raws li qib zog
Sib txawv (yield point / tensile zog), lub rebar muab faib ua 3 qib; nyob rau hauv Japanese Industrial Standard (JISG3112), lub rebar muab faib ua 5 hom raws li kev ua tau zoo; nyob rau hauv British Standard (BS4461), lub rebar kuj tau teev ntau theem ntawm kev ua tau zoo. Tsis tas li ntawd, lub rebar kuj tuaj yeem ua tiav raws li daim ntawv thov.
Kev faib tawm, xws li cov hlau zoo tib yam rau cov pob zeb ua vaj tse thiab cov khoom siv hluav taws xob kho cua sov rau cov pob zeb prestressed.
Post lub sij hawm: Aug-09-2022