Cov qauv pob zeb ua haujlwm tswj cov zog compression zoo heev. Rau guaranteed them ntawm tensile loads, anchoring ntawm lub reinforcement yog tsim nyog. Txhawm rau txo qhov ua tau zoo ntawm corrosion ntawm cov khoom hlau, cov khoom raug muab tso rau ntawm qhov deb ntawm 2 mus rau 7 centimeters los ntawm sab nrauv. Cov kws tshaj lij hu qhov kev mus kom ze no yog txheej tiv thaiv. Nyob rau hauv columnar thiab sawb foundations, reinforcing tawb, raws li zoo raws li floating slabs nrog ib tug universal mesh, yog nquag siv. Cov cheeb tsam ntawm kev hloov kho nyuaj yuav tsum tau ntxiv nrog cov pas nrig sib cais.
Kev piav qhia
Prestressed reinforced pob zeb cov qauv thiab lwm yam khoom zoo sib xws yog qhov txawv ntawm qhov tseeb tias lub zog tensioned mus rau qib siab tau muab tso rau hauv kev ua haujlwm thaum lub sijhawm tsim khoom. Hauv lwm qhov xwm txheej, cov khoom hlau pom muaj zog los ntawm kev cuam tshuam sab nraud. Rebar anchoring yog nquag siv nyob rau hauv cov khoom prestressed. Tsuas yog nyob rau hauv cov ntaub ntawv no, cov neeg ua haujlwm tshaj lij tuaj yeem ua kom muaj kev ntseeg siab thoob plaws tag nrholub sijhawm ua haujlwm. Feem ntau, qhov zoo tshaj plaws anchoring yog suav tias yog ib qho uas txo tus nqi tag nrho thiab kev siv zog ntawm kev ua haujlwm.
Thaum lub sijhawm nro ntawm qhov nres, ntau hom kev txhawb nqa yuav tsum tau siv:
- xov tooj hlau;
- ob txoj hlua;
- kub dov rebar, uas yog nyob rau hauv qhov kev thov loj tshaj hnub no.
yam ntxwv
Kev tshaj lij ntawm kev txhawb nqa hauv pob zeb tuaj yeem ua tau ntau txoj hauv kev. Cov kws tshaj lij lawv tus kheej paub qhov txawv ntau yam tseem ceeb:
- Siv ntau yam khawm, hooks thiab nias taw.
- Nyob zoo rebar protrusions (tsuas yog cov khoom ncaj nraim).
- Siv cov khoom siv hlau uas sib txawv hauv ntu ntu.
- Universal fixtures, tshwj xeeb mounted ntawm rebar kawg.
Txawm hais tias qhov ntev ntawm qhov kev txhawb nqa kev txhawb nqa raws li SP, kho cov ntsiab lus ncaj hauv pob zeb tuaj yeem siv rau lub tsev blanks nrog ib ntus profile. Tus neeg ua haujlwm ntawm txoj haujlwm no yuav tsum nkag siab tias qhov siab tshaj plaws ntawm cov pob zeb thiab cov hlau tau pom tsuas yog nyob rau theem pib qhov pom lub zog zoo ntawm kev daws tau tiav. Qhov kev ntseeg ntawm fixation ncaj qha nyob ntawm seb puas muaj transverse compression nyob rau hauv lub system.
Anchoring ntawm reinforcement nyob rau hauv slabs boasts zoontsuas tsuas yog hais tias lub kaw lus tsis muab rau lateral compression. Hooks tau txais rau cov xwm txheej tsim kho uas lub hauv paus steel workpiece yog du kiag li. Cov paws yog mounted tshwj xeeb rau cov pas nrig periodic hauv profile.
khoom tsis muaj
txhawm rau xam cov thauj tog rau nkoj, cov kws tshaj lij siv ntau qhov ntsuas yuav tsum tau ua. Txwv tsis pub, nws yuav nyuaj rau ua tiav qhov kev xav tau. Lub ntsiab ua hauj lwm parameter yog qhov ntev ntawm kev txhawb nqa anchoring hauv pob zeb. Txhua nuances raug txiav txim siab nrog kev saib xyuas zoo tshaj plaws. Qhov kawg ntev ntawm lub foob yog teem los ntawm cov neeg tsim qauv nrog kev saib xyuas zoo tshaj plaws. Rau cov hom phiaj no, cov duab tshwj xeeb tuaj yeem siv tau. Cov kws tshaj lij tau coj mus rau hauv tus account hauv chav kawm ntawm kev txhawb nqa, nrog rau kev ntxhov siab hauv qhov bar.
Used Devices
Rau cov khoom siv hluav taws xob classic ua los ntawm cov hlau kub dov, thauj tog rau nkoj hauv daim ntawv luv luv, welded washers, threaded tswv yim (cov txiv ntseej classic), thiab cov khoom siv feem ntau siv. Txhua yam khoom muaj nws tus kheej specifications. Yog tias cov khoom thauj tog rau nkoj nyob ntawm lub kaum sab xis me ntsis, tom qab ntawd yuav tsum tau muab qhov chaw me ntsis hauv cov pob zeb. Cov protrusions yuav tsim nyog yog tias tag nrho cov qauv tsim tsis muaj kev txwv ntawm cov khoom nyob ib sab thiab cov txheej txheem txheej txheem. Yog tias tag nrho cov yam ntxwv no tshwm sim, ces yuav tsum tau siv cov recesses.
Thaum lub tsheb thauj mus los ntawm kev txhawb nqa yog nyob saum toj nopob zeb nto, cov khoom yuav raug rau qhov tsis zoo ntawm corrosion. Txhawm rau tiv thaiv qhov tshwm sim tsis zoo thiab kev puas tsuaj ntxov ntawm cov qauv, cov hlau mesh yuav tsum tau npog nrog ib txheej ntawm pob zeb.
suav suav
Txhawm rau ua qhov kev txhawb nqa ntawm kev txhim kho hauv cov pob zeb ua vaj tse, txhua qhov kev tsim kho yuav tsum raug coj mus rau hauv tus account. Kev suav ntawm kev ua haujlwm ntawm sealing steel khoom yog ua tiav los ntawm kev kawm cov ntsuas hauv qab no:
- Lub zog siab tshaj plaws ntawm cov pob zeb muaj zog.
- Qhov taw qhia ntawm qhov nro hauv cheeb tsam clutch.
- Ib yam anchoring.
- Profile of reinforcement used.
- Qhov tob thiab qhov ntev ntawm cov hlau seem tab.
Ib txoj hauv kev yooj yim rau kev suav cov ntsuas tseem ceeb (ntev, qhov tob) tso cai rau cov neeg ua haujlwm ua txhua yam kev tsim kho nrog cov khoom zoo hauv lub sijhawm luv tshaj plaws. Rau cov laj thawj no, koj tuaj yeem siv lub rooj tshwj xeeb, uas suav nrog ntau yam ntsuas. Koj tuaj yeem kawm tag nrho cov ntaub ntawv tsim nyog siv lub khoos phis tawj program. Yog tias koj nkag mus rau tag nrho cov ntaub ntawv, tom qab ntawd thaum kawg koj tuaj yeem tau txais kev suav sau ua ke.
Cov kws tshaj lij tau siv los ua cov pob khoom uas muaj 12, 18 thiab 24 xov hlau. Lub tshuab kawg ncaj qha nyob ntawm qhov ntsuas qhov nro ntawm qhov kev txhawb nqa ntawm qhov nres lossis pob zeb. Yog tias cov neeg tsim khoom siv ob-ua yeeb yam hydraulic jacks, ces cov khoom siv hauv daim ntawv ntawmsteel plugs thiab blocks tsim los ntawm NIIZhB.
Nyob rau hauv cov txheej txheem ntawm kev tsim wedges thiab plugs, cov kws tshaj lij ua haujlwm rau kev kho cua sov ntawm cov khoom, vim qhov no tso cai rau ob peb zaug los ua kom lub zog ntawm cov hlau. Niaj hnub nimno ntau lawm ntawm lub tes tsho thiab lub tes tsho anchors yog raws li kev siv cov pob, hlua, strands. Cov kws tshaj lij tso qhov xav tau ntau ntxiv ntawm lub cev thiab cov khoom siv hluav taws xob ntawm cov hlau. Rau cov pas nrig thiab cov cores, cov chaw tsim khoom siv cov khoom siv muaj zog, vim tias tsis tas yuav tsim cov khoom loj.
Txoj kev fittings
Raws li kev ua haujlwm ib txwm muaj, cov hlua khi thiab daim hlau muaj cov yam ntxwv compression rau saum. Lub zog ntawm cov pob zeb yog 50 npaug siab dua lub zog tensile. Anchor reinforcement ntawm ib leeg nrog steel tuav zam kev puas tsuaj ntawm lub hauv paus thiab tom qab qhib ntawm cov kab nrib pleb. Vim li no, tus tsim muaj peev xwm tiv taus ntau dua tensile loads. Thaum lub caij ntuj no o, qhov xwm txheej hloov pauv loj heev. Cov av zoo li thawb lub hauv paus mus rau saum npoo. Yog hais tias cov av nplaum yog supersaturated nrog dej, ces thaum lub sij hawm khov lawv nce nyob rau hauv ntim. Cov kev taw qhia kawg ntawm kev hloov pauv (compression ntawm ib leeg, nro hauv lub hauv paus).
