piav qhia ntxaws
Prefabricated lub thawv girder yog ib hom kab qauv siv feem ntau siv hauv choj engineering. Nws yog hollow sab hauv thiab muaj flange ntawm ob sab ntawm sab sauv. Cov duab zoo ib yam li lub thawv, yog li nws muaj npe. Prefabricated lub thawv girder yog cov tswv cuab flexural prefabricated los ntawm pretension los yog post-tension method thiab ces thauj mus rau qhov chaw tsim kho rau installation.
Lub thawv precast girder yog ua los ntawm pob zeb thiab muaj ib lub thawv ntu, uas yog tsim rau tus choj tsim ntawm ntau yam spans. Nws yog ua los ntawm cov khoom siv muaj zog muaj zog, nrog zoo heev compressive thiab load-bearing muaj peev xwm, haum rau ntev-span choj. Lub thawv ntu ua rau lub thawv precast girder muaj qhov nruj dua, uas tuaj yeem tswj tau qhov deformation thiab deflection ntawm tus choj thiab txhim kho kev ruaj ntseg ntawm tus choj.
Cov txheej txheem kev tsim kho ntawm precast box girder feem ntau suav nrog cov kauj ruam ntawm kev txiav txim siab tsim qauv, kev npaj cov khoom, pwm ua, steel bar ua, pob zeb sib xyaw thiab pwm pouring. Cov txheej txheem tsim khoom tuaj yeem tswj tau qhov tseeb, txo cov kev hloov pauv hauv cov txheej txheem kev tsim kho, thiab qhov chaw tsim kho tsis tas yuav tsum muaj cov txheej txheem nyuaj thiab kev ua vaj tse, txo qhov nyuaj ntawm kev tsim kho. Yog li ntawd, precast box girder muaj qhov zoo ntawm kev tsim kho yooj yim, txo kev tsim kho nyuaj thiab ua kom lub sijhawm siv sijhawm luv.
Raws li cov ntaub ntawv sib txawv, precast box beams feem ntau muab faib ua prestressed reinforced pob zeb kem kab teeb thiab steel box beams. Ntawm lawv, steel lub thawv girder, tseem hu ua steel kem girder, yog ib qho qauv ntawm cov choj ntev ntev, nrog cov kabmob zoo thiab ruaj khov.
Cim npe nrov: Tuam Tshoj prefabricated lub thawv girder, Tuam Tshoj prefabricated lub thawv girder manufacturers, lwm tus neeg, Hoobkas
