Dab tsi yog cranked beam?
Dab tsi yog cranked beam?

Video: Dab tsi yog cranked beam?

Video: Dab tsi yog cranked beam?
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Anonim

Hauv RCC stairs lub slab nws tus kheej ua raws li nqaj txhawb nqa loads yam tsis muaj dabtsi yog khoov. Nyob rau hauv steel stairs cov loads ntawm cov kauj ruam yuav tsum tau muab xa mus rau ib tug nqaj tsis muaj difflection. Qhov no nqaj tsis yog kab rov tav. Nws yog cranked nrog anangle rau kab rov tav. Li no nws thiaj hu ua crankedbeam.

Ib yam li ntawd, vim li cas crank muab nyob rau hauv beam?

Cov crank bar lossis bent up bar yog qhov tseem ceeb heev hauv R. C. C nqaj los yog slabs kev tsim kho vim hais tias tsis muaj kev cuam tshuam lub Hogging (tsis zoo lub sij hawm) tus qauv yuav ua tsis tau tejyam orthe lub zog ntawm cov qauv yuav txo. Lub hogging bendingmoment yuav txhim kho ntawm kev txhawb nqa ntawm slabs thiab kab teeb.

Tsis tas li ntawd, crank civil engineering yog dab tsi? Crank yog me ntsis dabtsi yog khoov nyob rau hauv tuav ntawm lub puab tsaig sothat tuav lub meej npog txawm nyob rau hauv lub puab tsaig txoj hauj lwm. Txoj cai uas feem ntau siv yog tias txoj kab nqes ntawm crank 1:10 & yam tsawg kawg nkaus ntev ntawm crank 300 hli. Crank ntev ntawm kev txhawb zog.

Tsis tas li cov lus nug yog, vim li cas cov pas tuav cranked?

Ib bent-up bar npe as crank bar yog muab los ua RCC slab muaj kev nyab xeeb los ntawm kev ntxhov siab. Thaum bentup tuav yog muab, lub zog thiab deformation muaj peev xwm ntawm slabs nrog khoov tuav piv rau slabs tsis khoov tuav yog txaus nce. 2. Los tiv thaiv shear force uas yog ntau dua ntawm kev txhawb nqa.

Dab tsi yog bent up bar hauv beam?

Khoov bar muaj nyob rau hauv a nqaj thiaj li tiv tus Negative Khoov Moment generated atsupports. Hauv qab no yog BMD ntawm kev txuas ntxiv Beam : Nyob ntawm qhov tsis zoo Khoov Lub sijhawm nro yog nyob rau sab saum toj ntawm Slab yog li yuav tsum muaj kev txhawb zog rau sab saum toj ntawm Slab.

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