Precast composite vaj huam sib luagisib qho tseem ceeb ntawm lub tsev prefabricated, thiab qhov teeb meem ntawm cov kab nrib pleb hauv cov vaj huam sib luag hauv cov txheej txheem tsis tuaj yeem tsis quav ntsej.Raws li daim ntawv thov engineering thiab cov txheej txheem tsim khoom ntawm cov khoom sib xyaw ua ke, qhov ua rau ntawm cov kab nrib pleb hauv laminated slab raug tshuaj xyuas thiab cov kev tswj xyuas tau muab tso rau pem hauv ntej.
1.Dab tsi yog laminated phaj?
Laminated Slab yog ib hom laminated tswv cuab, uas yog tsim los ntawm precast qhob cov tswv cuab (los yog cov neeg ua vaj tse uas twb muaj lawm) thiab tom qab cam khwb cia pob zeb, thiab yog tsim nyob rau hauv ob theem.
Thaum lub sij hawm tsim kho, lub precast qhob slab yog thawj zaug ntsia rau ntawm qhov chaw, thiab yog siv los ua ib tug formwork, supplemented los ntawm kev txhawb nqa, thiab ces lub pob zeb superimposed txheej (uas yog, sab sauv ntawm lub cam khwb cia-nyob rau hauv-qhov chaw pob zeb) yog. nchuav, dais lubsab sauvlub nra.Muaj ibpom tseeb qhov zoorau qhov qauv no, sib txuas qhov zoo ntawm cov txheej txheem cam khwb cia-hauv-qhov chaw thiab cov qauv precast, tsis tsuas yog lav qhov kev ncaj ncees ntawm cov qauv, tab sis kuj ua tau raws li qhov yuav tsum tau ua ntawm cov khoom lag luam kev lag luam, thiab txuag tau ntau ntawm formwork txhawb thiab dismantling, thiab txo qhov kev tsim kho. nqi, yog ib tug heev muaj peev xwm expansion ntawm pem teb daim ntawv.
2. Cov txheej txheem ntawm kev tsim cov tawg
Cov txheej txheem thev naus laus zis ntawm txheej txheej precast ntawm lub phaj superposed yog raws li hauv qab no: Pwm platform tu → pwm sib dhos → txheej retarder thiab tso tawm → steel bar binding → hydropower pre-embedding → qhob pouring → vibration → pre-curing → stretching → curing → demoulding lifting → kev thauj mus los rau cov khoom tiav lawm stacking cheeb tsam (dej ntxuav yog ntxiv raws li tus qauv tsim).
Raws li kev paub dhau los, cov txheej txheem tseem ceeb uas yuav tsim cov kab nrib pleb yog kev co, rub cov plaub hau, tu, demoulding, lifting, stacking thiab lwm yam.
3.Lub laminated phaj yog poured, vibrated thiab stretched
Kev soj ntsuam Causal:
1. Tom qab concreting, tam sim no, lub PC tsis siv neeg sib dhos kab, lub prefabricate tivthaiv tsuas yog siv lub rooj sib tsoo los nqa ntawm kev co.Vibration rooj vibration, vibration zaus, high efficiency, tsuas yog 15-30 vib nas this kom tiav kev co.Vim tsis muaj kev paub dhau los ntawm cov neeg siv khoom siv, feem ntau muaj kev vibration ntau dhau, kev sib cais tshwm sim, ua rau cov khoom tawg.
2. Cov pob zeb precast muaj me me thiab viscosity ntau dua.Thaum lub rooj pwm ruaj khov siv rau hauv kev tsim khoom, lub vibrating pas nrig yog siv los co lub truss ntau dhau, thiab lub vibrating point yog tsawg, nws yog ib qho yooj yim los ua rau mob hnyav los yog txawm tias lub zos segregation ntawm cov pob zeb nyob rau hauv cov ntaub so ntswg ntawm lub Truss. , ua rau cov kab nrib pleb raws cov kev taw qhia ntawm truss tendons.
Tswj ntsuas:
Lub rooj vibration yog siv los ua cov pob zeb ua kom pom tseeb ntawm kev ua haujlwm ntawm cov neeg siv khoom siv.Thaum siv phau ntawv vibration, lub vibrator yuav tsum muab tso rau kab rov tav, thiabtib lub sijhawm,yuav tsum tau them sai sai rau lub sijhawm vibratingtozam lub zos over-vibration thiab vibrating truss.Hauv kev tsim kho,trample ntawm truss tuav yog nruj me ntsis txwv tsis pubkom txog thaum lub pob zeb ncav cuag lub zog nqa.
4.Txhim kho cov phaj laminated
Ua rau Analysis:
Tam sim no, chav kho mob feem ntau yog siv los tswj cov khoom hauv lub hoobkas.Steam curing yog muab faib ua plaub theem: static nres, kub nce, qhov kub thiab txias tsis tu ncua.Qhob hardening maj mam thiab nce lub zog yog cov txheej txheem ntawm hydration cov tshuaj tiv thaiv, tab sis cov tshuaj tiv thaiv hydration muaj qhov thov siab dua rau qhov kub thiab txias.thiabcov av noo.Yog li ntawd, thaum qhov kub thiab av noo tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, nws yog ib qho yooj yim los ua cov kab nrib pleb vim yog pob zeb shrinkage.
Tswj Kev Ntsuas:
Thaum lub sij hawm pre-kho, qhov kub ntawm cov pob zeb yuav tsum tau tswj tsis pub tsawg tshaj 10 ° C. Qhov kub ntawm cov pob zeb tsis tuaj yeem nce mus txog 4 ~ 6 xuab moos tom qab ua tiav ntawm kev nchuav; Cov cua kub yuav tsum tsis txhob ntau tshaj 10 ° C / h;Qhov kub thiab txias sab hauv ntawm pob zeb yuav tsum tsis txhob ntau tshaj 60 ° C thiab qhov siab tshaj plaws yuav tsum tsis txhob siab tshaj 65 ° C thaum lub sij hawm qhov kub thiab txias., tnws curing lub sij hawm ntawm qhov kub thiab txias yuav tsum tau txiav txim los ntawm kev ntsuam xyuas raws li qhov yuav tsum tau ntawm demoulding zog, qhob mix proportions thiab ib puag ncig tej yam kev mob.; Thaum lub sij hawm txias, qhov cua txias yuav tsum tsis txhob ntau tshaj 10 ° C / h, thiab qhov kub ntawm qhov sib txawv yuav tsum tsis txhob ntau tshaj 15 ° C.
5.Demoulding ntawm laminated phaj
Ua rau Analysis:
Tom qab kev saib xyuas ntawm cov khoom, yog tias lub zog tivthaiv tsis tau raws li qhov yuav tsum tau muaj lub zog ntawm demoulding, qhov yuam kev demoulding yuav ua rau cov kab nrib pleb ntawm cov khoom siv vim yog lub zog, thiab cov kab nrib pleb yuav txuas ntxiv mus ntxiv tom qab khaws cia tom qab. thiab kev tiv thaiv ntawm cov khoom tiav tsis nyob rau hauv qhov chaw, thaum kawg, cov kab nrib pleb nyob rau hauv cov lus qhia sib txawv ntawm lub phaj nto.
Tswj Kev Ntsuas:
Lub twj paj nruag springback yuav tsum tau siv los saib xyuas lub zog ntawm laminates ua ntej demoulding.Lub demoulding tsis tuaj yeem ua tiav kom txog thaum laminates tau mus txog 75% ntawm lub zog tsim los yog lub zog xav tau los ntawm kev tsim cov duab kos.Kev tshem tawm pwm yuav tsum ua raws li qhov yuav tsum tau ua ntawm cov txheej txheem pwm sib dhos thiab cov pwm tshem tawm, nruj me ntsis txwv tsis pub ua phem pwm tshem tawm.
6.Lifting thiab transshipment ntawm laminated daim hlau
Ua rau Analysis:
Raws li cov duab thiab qhov loj ntawm lub phaj laminated, los ntawm kev ntsuam xyuas kev ntxhov siab, khoov lub sij hawm xam thiab siv rau lub teb chaws cov qauv, Atlas, qhov kawg kev txiav txim ntawm qhov chaw ntawm lub lifting point ntawm lub laminated phaj.Txij li cov phaj laminated yog tiaj tus thiab tsuas yog 60 hli tuab, txhawm rau tiv thaiv kev thauj khoom tsis sib xws thaum nqa thiab hloov ntawm lub phaj laminated,xav tauib tug tshwj xeeb tshuav ncej los pab lub lifting.
Tab sis nyob rau hauv cov txheej txheem ua haujlwm tiag tiag, feem ntau tshwm sim cov khoom siv ncaj qha hoisting tsis siv qhov sib npaug;tus tsim thov rau, yim taw tes hoisting tab sis qhov ntau lawm tseem plaub taw tes hoisting;tsis raws li daim duab kos npe hoisting point txoj hauj lwm hoisting thiab lwm yam.Cov kev ua haujlwm tsis zoo no yuav ua rau cov tswv cuab muaj qhov tawg vim yog qhov deflection ntau dhau ntawm txoj kev hoisting.Kev ua haujlwm tsis tu ncua yuav ua rau cov kab nrib pleb ntawm cov pob zeb sib xyaw, thiab thaum kawg cov kab nrib pleb yuav txuas mus rau tag nrho cov slab, thiab qhov hnyav dua yuav tsim los ntawm cov kab nrib pleb, ua rau cov seem ntawm tag nrho cov slab.
Tswj ntsuas:
Txhim khu kev tswj ntawm lub Hoobkas, ua qauv nqa, hloov cov txheej txheem ua haujlwm,workers yuav tsum nruj me ntsis ua raws li tus naj npawb thiab qhov chaw ntawm lifting ntsiab lus teev nyob rau hauv tus tsim drawings, Ushauvib tug kws hoist nqa maj mam nce thiab nqis kom tsis txhob muaj kev sib tsoo nrog lwm yam khoom, thiab xyuas kom meej tias txoj hauj lwm ntawm cov khoom nqa nqa, nqa iav thiab qhov nruab nrab ntawm lub ntiajteb txawj nqus ntawm cov khoom nyob rau hauv txoj kev ntsug., tNws Kab rov tav lub kaum sab xis ntawm txoj hlua thiab cov tswv cuab yuav tsum tsis txhob tsawg dua 45 degrees, tsis tsawg dua 60 degrees.;rtxhawb nqa lub sijhawm tsis tsim nyog;xyuas kom meej tias cov khoom mus txog 75% ntawm cov qauv tsim los yog lub zog xav tau los ntawm kev tsim cov duab kos, tom qab ntawd nqa cov khoom.
7. Kev ntim khoom thiab kev thauj mus los ntawm cov phaj laminated
Ua rau Analysis:
1. Nyob rau hauv qhov tseeb code cia txheej txheem, feem ntau muaj ntau yam uas tsis yog-tus qauv ntawm stacking, piv txwv li:Stacking yog siab dhau lawm, thiab hauv qee lub chaw tsim khoom kom txuag tau qhov chaw, stacking tuaj yeem siab li 8-10 txheej; Stacking Phaj Code tsis tu ncua, Loj Phaj Siab Me Phaj;pad ntoo muab tso rau ntawm random, tsis yog tus qauv, lub sab sauv thiab qis txheej pad ntoo tsis nyob rau hauv tib txoj kab ntsug, thiab tsis ua raws li qhov yuav tsum tau ua, lub super-ntev thiab super-wide pawg tseem tsuas yog muab plaub lub ncoo ntoo..Cov kev coj cwj pwm no ua rau lub zog tsis sib xws ua rau ntawm kev sib xyaw slab txhawb nqa, uas ua rau tawg.
2. Cov laj thawj ntawm cov kab nrib pleb hauv cov phaj laminated tshwm sim los ntawm kev thauj mus los yog qhov pib zoo ib yam li cov laj thawj ntawm cov kab nrib pleb tshwm sim los ntawm kev sib tsoo.Txawm li cas los xij, nws yog ib qho kev inevitable uas txoj kev yuav tsis sib npaug thiab lub tsheb yuav tsoo thaum lub tsheb thauj mus los.Qhov no yuav ua rau dynamic loads.Yog tias txoj hauv kev kho cov phaj laminated tsis ruaj khov, nws yog qhov nyuaj rau kev tswj cov phaj laminated, thiab qhov kev sib txawv ntawm cov phaj laminated ua rau cov kab tawg ntawm cov phaj laminated.
Tswj ntsuas:
1. Qhov loj thiab qhov tshwj xeeb ntawm txhua pawg yuav tsum sib koom ua ke kom deb li deb tau.Nws yog nruj me ntsis txwv tsis pub nias lub phaj loj tawm tsam me me. Xyuas kom meej tias txhua txheej fulcrum nyob rau hauv tib txoj kab ntsug, kom tsis txhob fulcrum nce thiab nqis ntawm shear tawg. ; Lub fulcrum yuav tsum tau muab tso rau ntawm ib sab ntawm Truss, ntawm ob qho kawg ntawm lub phaj (txog 200mm) thiab nyob rau hauv nruab nrab ntawm lub ncua nrog ib tug deb ntawm tsis ntau tshaj 1.6 m.; Yuav tsum tsis pub ntau tshaj 6 txheej; Cov khoom siv yuav tsum raug thauj mus rau qhov chaw rau kev teeb tsa sai li sai tau tom qab ua tiav ntawm kev tsim khoom, thiab lub sijhawm stacking yuav tsum tsis pub tshaj 2 lub hlis.
2.Lub fulcrum yuav tsum tau muab khi kom ruaj khov kom tsis txhob muaj cov tswvcuab txav los yog dhia hauv kev thauj mus los.Nyob rau tib lub sij hawm, nyob rau hauv qab ntawm ntug los yog nyob rau hauv kev sib cuag nrog cov hlua ntawm pob zeb, daim ntawv thov ntawm liner los tiv thaiv.
Xaus:Nrog rau kev txhim kho tas mus li ntawm lub tsev prefabricated nyob rau hauv Suav teb, qhov zoo ntawm kev sib sau ua ke laminated daim hlau tau dhau los ua qhov tseem ceeb ntawm kev mloog, thiab nws ntseeg tau tias tsuas yog los ntawm ntau yam kev sib txuas ntawm cov txheej txheem ntawm cov ntawv laminated, tib lub sijhawm, ntxiv dag zog rau cov kws tshaj lij. kev cob qhia kev txawj ntse ntawm cov neeg ua haujlwm, tuaj yeem tiv thaiv qhov tshwm sim ntawm kev tawg phenomenon ntawm laminated phaj.
Lub sij hawm xa tuaj: Mar-31-2022