Civil Engineering (CE) Cov Lus Nug Kom economize tus tsim ntawm ib tug flexural tswv cuab, lub tensile tuav yog curtailed ntawm seem tshaj uas nws tsis tas yuav tiv flexure. Nyob rau hauv cov ntaub ntawv ntawm Simply Supported slab, alternate bars yog curtailed ntawm 1/7 ntawm tus nqi span.
Yuav ua li cas yog curtailed bar?
Curtail bar nyob rau hauv kab yog ib txoj hauv kev los txo thaj tsam ntawm tensile reinforcement ntawm cov ntsiab lus / cheeb tsam (txawm yog ntawm ib lub nqaj / slab) qhov twg khoov lub sijhawm tsawg kawg yog xoom rau Lub hom phiaj ntawm kev ua tiav kev tsim kev lag luam.
Dab tsi yog qhov kev txhawb nqa yooj yim?
Ib qho yooj yim txhawb nqa slab yog ib hom slab nrog nws qhov xaus tsuas yog txhawb nqa ntawm ob phab ntsa lossis kab teeb pub dawb rau khoov ntawm qhov kawg yam tsis muaj kev txwv tsis zoo li kab teeb ruaj. Qhov no tsuas muaj ib ntu xwb. … Txhua qhov kev ncua yuav sib npaug lossis tsis sib npaug. Yog li yog tias tus naj npawb ntawm kev txhawb nqa yog n, ces tus naj npawb ntawm cov spans yuav yog (n-1).
Dab tsi yog qhov txiaj ntsig ntawm kev txhawb nqa slab?
Qhov kev ncua sij hawm zoo rau qhov kev txhawb nqa yooj yim yog sib npaug ntawm qhov tseeb ntawm qhov kev txhawb nqa (piv txwv li qhov ntev mus txog lub ntsej muag ntawm kev txhawb nqa) ntxiv rau qhov tob lossis qhov dav ntawm qhov slab.
Yuav ua li cas ntxiv dag zog rau hauv slabs?
Cov qauv kev txhim kho feem ntau yog muab tso rau hauvhauv qab ntawm cov slab tuab kom nce lub pob zeb lub peev xwm. Feem ntau cov txheej txheem slabs-rau-hauv av muaj ob sab saum toj thiab hauv qab txheej ntawm qhov cuab lub zograu tswj kev tawg-dav thiab nce load peev xwm.
