Cov cuab yeej siv kho vaj tse hauv nruab nrab yog hais txog cov khoom nyob hauv qhov chaw ua hauj lwm los yog kev tsim kho ua ntej, thiab xa mus rau qhov chaw rau kev siv lub pob zeb hauv pem teb. Qhov ntev ntawm lub vaj huam sib luag prefabricated feem ntau yog tib yam li qhov chaw qhib lossis qhov tob ntawm chav tsev thiab muaj ntau yam ntawm 3M; qhov dav ntawm lub vaj huam sib luag yog feem ntau ntau ntawm 1 M; qhov kev sib tw hauv seem ntawm qhov vaj huam sib luag yuav tsum txiav txim siab los ntawm kev ua tus qauv.
Ua ntej, hom ntawm lub rooj tsavxwm
Precast reinforced pob zeb ua vaj tse yog prestressed thiab tsis-prestressed ob.
Precast reinforced pob zeb ntau hom siv ntau hom: khoom phaj, txawb phaj, khoob phom peb.
1, khoom phaj
Nta: yooj yooj yim, tsim kom yooj yim.
Disadvantages: tsis zoo suab paj nruag, tsis muaj dej tsis kam.
Cov qauv ntawm cov qauv: cov nplai me me, cov qauv yog feem ntau txog 1.5m, tsis tshaj li 2.5m, lub thickness yog feem ntau 60mm-80mm los sis 1/30 ntawm nws lub siab.
Txhawb kom ntev: nqaj yog tsis pub tsawg tshaj 80 hli, phab ntsa tsis tsawg tshaj 100 hli, phab ntsa tsis pub tsawg tshaj 120 hli.
Siv: Precast solid slab vim nws txoj me me, feem ntau siv hauv tsev me thiab chav me, chav dej, chav ua mov.
2, lub rooj tsav tsheb
Nta: nyhav me me, luv nqi, siab nqa tau yooj yim, qhov yoojyim zoo, qhov cua sov thaiv kom zoo.
Disadvantages: suab paj nruag tsis zoo.
Cov phom nta: Cov tais diav yog ib hom ntawm prefabricated keeb nrog ribs, uas yog, muaj sab tav ntawm ob sab ntawm lub phaj khoom, lub pob ntawm lub phaj ntim ntawm sab tav, lub phaj dav yog 500 ~ 1200 hli, Cov kab mob lim ntshav siab ntev feem ntau yog 3 ~ 6m. Phaj siab qhov siab ntawm 120 ~ 240mm, tuab ntawm tsuas yog 30 hli.
Cov hau kev zoo siab: yog teeb tsa (phaj rib hauv qab) ntau dua kev nyuab siab, hauv qab nthab ua ntev.
Taus (ntxeev siab) kom daws tau lub suab rwb thaiv tsev, teeb meem thermal teebmeem, ru tsev tiaj, tsim rau ntau chav hauv qhov dej.
3, hollow board
Nta: Saum thiab pav ca, nruab nrab ntawm cov khoob khoob, txuag cov khoom, lub rwb thaiv tsev qhov kev kawm zoo.
Disadvantages: lub rooj tsavxwm tsis tuaj yeem yooj yim qhov.
Siv cov nta: qhov muaj qhov hloov, kheej kheej, square, xwm fab xwm meem, dav dav dav ntawm 400,500,600,800mm thiab lwm qhov loj me, pawg thawj coj saib kev sib txuas lus muaj peev xwm ncav cuag 6.0.6.6.7.2m, lub thickness ntawm lub Rooj Tswjhwm Saib yog 120 ~ 300 hli
Siv: Qhov haujlwm yav dhau los yog siv dav.
Qhov ob, cov qauv ntawm lub phaj kev teeb tsa
1, qhov teeb tsa ntawm pawg thawj coj saib thaum lub hom phiaj yam tsawg dua qhov zoo;
2, kom zam dhau qhov tshwm sim ntawm kev them nyiaj yug ntawm trilateral;
3, lub plawv pawg ua ntej kev teeb tsa, yuav tsum muaj nyob rau hauv lub rooj sab laj ntawm lub qhov puv nrog C15 pob zeb luv luv (piv txwv li ntsaws) kom tsis txhob muaj kev sib tsoo ntawm qhov kawg.
Thib peb, pawg thawj coj saib xyuas kev xav tau
Thaum nws tau txais kev txhawb nqa ntawm lub nqaj, nws qhov ntev yuav tsum tsis pub tsawg tshaj 80 hli;
Thaum nws tau txais kev txhawb sab hauv cov phab ntsa sab hauv, nws lub sijhawm ntev yuav tsis pub tsawg dua li l00mm;
Thaum nws tau txais kev txhawb siab ntawm phab ntsa sab nraud, nws qhov ntev ntev yuav tsis pub tsawg tshaj 120 hli.
Ua ntej tav su, ua ntej cov phab ntsa los yog cov nplaum nrog M10 cement mortar 10 ~ 20 hli tuab (zaum, zaum), thiab tom qab ntawd ua lub rooj tsavxwm thiab phab ntsa lossis cov nqaj muaj qhov zoo sib txuas, tab sis kuj yuam kom tawv phab ntsa.
Thaum siv cov nqaj phaj qauv, lub phaj ntawm lub txaj rhawv feem ntau muaj ob txoj kev, ib qho yog lub rooj tsavxwm ncaj qha so rau saum lub nqaj; tus tod yog lub rooj tsavxwm uas so ntawm lub txaj nqaj lossis kab ntsig hla [nkoj hauv lub nqaj ntawm qhov chaw nkaum kev.
Qeb plaub, kev ua haujlwm rau sab (60mm-200mm)
Prefabricated slats ua si lub luag hauj lwm ntawm kev txuas ob kab uas nyob ib sab los ua hauj lwm ua ke los ua hauv pem teb tag nrho. Hauv ib qho kev teeb tsa ntawm hauv pem teb, feem ntau pom qhov txawv.
① Thaum qhov sib txawv yog tsawg tshaj 60 hli, cov pob yas txha kom sib txuas (rau ≤ 30, nplua C20 pob zeb zoo nkauj);
② Thaum qhov sib txawv ntawm 60 ~ 120 hli, tuaj yeem muab nchuav rau hauv cov pob zeb sib txuas nrog 2φ6 ntev hlau qhov ntxiv;
③ Thaum qhov sib txawv li ntawm 120 ~ 200 hli, muab cov pob zeb sib cam rau hauv qhov chaw pov tseg, thiab lub phaj nyob hauv phab ntsa los yog hnav lub tsho loj;
④ Thaum qhov sib txawv loj tshaj 200 hli, tuaj yeem kho ncaj ncaj, tab sis tseem kho qhov loj ntawm lub Rooj Tswjhwm Saib [xws li cov phaj seam].
Thib tsib, los tiv thaiv seismic sib tsoo ntawm cov qauv siv pob zeb hauv pem teb
Ntiv nplhaib yuav tsum nyob ze rau hauv qab ntawm prefabricated pem teb phaj txheej, sab nrauv phab ntsa yuav tsum tau teem Lub nplhaib ntawm lub nplhaib (L-beam), phaj prefabricated hoop hauv lub nplhaib tawg. Thaum lub siab ntawm lub phaj yog ntau tshaj 4.8 m thiab parallel nrog sab nraud phab ntsa, lub phaj prefabricated ntug ntawm sab nraud phab ntsa yuav tsum tau muab nrog nro tuav thiab nplhaib kab.