Tiv thaiv txheej ntawm pob zeb los tiv thaiv kev txhawb nqa los ntawm ib puag ncig cuam tshuam

Cov txheej txheem:

Tiv thaiv txheej ntawm pob zeb los tiv thaiv kev txhawb nqa los ntawm ib puag ncig cuam tshuam
Tiv thaiv txheej ntawm pob zeb los tiv thaiv kev txhawb nqa los ntawm ib puag ncig cuam tshuam

Video: Tiv thaiv txheej ntawm pob zeb los tiv thaiv kev txhawb nqa los ntawm ib puag ncig cuam tshuam

Video: Tiv thaiv txheej ntawm pob zeb los tiv thaiv kev txhawb nqa los ntawm ib puag ncig cuam tshuam
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Hlis ntuj nqeg
Anonim

Cov txheej txheem tiv thaiv ntawm cov pob zeb thiab nws cov tuab yog qhov txaus siab rau ntau tus neeg uas koom nrog kev tsim kho vaj tse pob zeb. Qhov tseeb, nws yog txheej txheej uas pib ntawm qhov chaw thiab mus txog qhov chaw ntxiv.

Nws yog siv los tiv thaiv cov ntsiab lus los ntawm kev hloov pauv corrosive, overheating, high humidity, negative environmental influences. Tsis tas li ntawd, nws txoj hauj lwm yog los xyuas kom meej qhov zoo adhesion ntawm pob zeb mortar thiab reinforcement.

tiv thaiv txheej ntawm pob zeb
tiv thaiv txheej ntawm pob zeb

Tsim

Hauv cov tsev ua vaj tse, cov txheej txheem tiv thaiv yog tsim los ntawm cov chaw taws teeb ntawm cov khoom siv los ntawm cov dav hlau. Nws yuav tsum raug sau tseg tias cov txheej txheem tiv thaiv ntawm cov pob zeb ua kom muaj zog muaj qhov tuab uas tau teeb tsa nyob ntawm cov khoom siv, lawv qhov loj thiab hom. Tsis tas li ntawd, lwm yam cuam tshuam rau qhov ntsuas, xws li hom pob zeb, qhov ntev ntawm cov ntu.

Txhawm rau tiv thaiv cov kab teeb los ntawm kev sib tsoo, steel reinforcement yog nteg nyob rau hauv lub stretched ib feem ntawm cov qauv. Qhob, thaum solidified, ua tib zoo sib txuas rau nws thiab hloov feem ntau ntawm tensile rog.

qhob npog rau rebar
qhob npog rau rebar

Influencing factors

Kev ua raws li qhov pom zoo kom haum yog qhov tseem ceeb rau kev ua haujlwm. Yog tias cov txheej nyias nyias, kev puas tsuaj sai ntawm cov hlau hlau yuav pib, uas tuaj yeem ua rau muaj kev hloov pauv hauv tag nrho cov qauv.

Tib lub sijhawm, ntau qhov tuab ntawm cov txheej tiv thaiv ntawm cov pob zeb ua tsis yog qhov kev xaiv zoo tshaj plaws, vim qhov no ua rau qhov tsis ncaj ncees nce nqi ntawm lub tsev. Yog li ntawd, koj yuav tsum muaj peev xwm xam tau qhov loj me. Ntawm cov laj thawj cuam tshuam, nws tsim nyog sau cov hauv qab no:

  • Load ntawm cov khoom txhawb nqa. Muaj ob txoj kev xaiv los ntawm qhov ntsuas no. Hom kev txhawb zog uas tsis muaj kev ntxhov siab thiab ntxhov siab yog hais txog lawv.
  • Ntau yam khoom siv. Ob qho tib si transverse thiab longitudinal views yog siv. Kev ua hauj lwm thiab kev txhim kho cov txheej txheem kuj txawv.

Ntxiv rau qhov saum toj no, cov kev cia siab ua haujlwm tau muaj kev cuam tshuam loj. Nws tuaj yeem siv sab hauv tsev lossis sab nraum zoov, hauv cov av noo siab lossis sib cuag nrog av. Nws kuj tseem yuav tsum tau sau nyiaj txiag.

pob zeb npog thickness
pob zeb npog thickness

Kev xaiv

txhawm rau ua kom yooj yim cov txheej txheem ntawm kev xaiv cov tuab, koj yuav tsum tau ua tib zoo mloog rau cov qauv tsim tau teev tseg hauv SNiP. Qhov kev txhawb zog uas tsis muaj kev ntxhov siab ntev ntev yuav tsum muaj cov txheej txheem tiv thaiv ntawm cov pob zeb ntau dua lossis sib npaug ntawm cov diametrical loj ntawm tus pas nrig. Yog tias cov phab ntsa thiab slabs muaj qhov ntsuas tsawg dua 100 mm, ces cov txheej yuav tsum pib ntawm 10 mm. Yog tshajntawm theem no, muab qhov siab ntawm cov kab teeb mus txog 250 mm, qhov taw qhia yog sib npaug li 15 mm.

Thaum lub tsev nrog lub longitudinal prestressing hom kev txhawb zog nyob rau hauv cov chaw uas lub load yog xa mus rau lub pob zeb, cov txheej yuav tsum yog kwv yees li ob lub cheeb. Qhov no siv tau rau ob qho tib si reinforcing tuav thiab hlau hlua.

Tus nqi thiab cov qauv teev saum toj no yuav tsum muaj cov qauv huab cua. Txhawm rau txheeb xyuas cov tuab uas twb muaj lawm, cov cuab yeej tshwj xeeb ntsuas tau tsim, kev ua haujlwm ntawm cov khoom siv raws li cov qauv sib nqus.

tiv thaiv txheej ntawm pob zeb snip
tiv thaiv txheej ntawm pob zeb snip

Kev kho mob

Qhov tseem ceeb tshwj xeeb yog qhov khaws cia ntawm cov txheej txheem tiv thaiv, uas tso cai rau koj los tsim qhov tseeb qhov ntev rau cov qauv thaum lub sij hawm ntxiv dag zog. Txhim khu kev sib txuas hauv qab yog muab tso rau hauv cov khoom siv no thaum lub hauv paus tau tsim. Ib txheej tiv thaiv ntawm pob zeb nrog lub thickness ntawm 60 cm los yog ntau tshaj nyob rau hauv cov ntaub ntawv no yog ntau yooj yim rau equip.

Qhov dav tshaj plaws niaj hnub no yog cov khoom siv kho cov yas, txawm tias tsis ntev dhau los lawv tau siv los hloov cov rebar blanks. Lawv yuav tsum tau ua ua ntej ua ntej tso pib. Cov kev xaiv niaj hnub no yog tus nqi qis thiab yooj yim rau nruab. Lawv tau tsim los ua kom yooj yim rau kev txhim kho kev ua haujlwm thiab kev ua vaj tsev tom ntej ntawm cov qauv monolithic kom ntau li ntau tau.

Txoj kev siv

Ua tsaug rau cov clamps, nws tau dhau los ua kom ruaj khov cov ntsiab lus hauv cov ntawv xav tau nrog cov khoom zoo. Yog li ntawd muaj ib tug automated pouring ntawm mortar los ntawm pob zeb. NtawmNws tsis tas yuav txhawj xeeb txog qhov kev hloov pauv ntawm qhov kev txhawb nqa, vim tias qhov kev sib koom ua ke tsis tu ncua yog lav. SNiP 2.01.02-85 muaj cov kev cai yooj yim rau nws tsim. Cov cuab yeej no yuav pab tau tshwj xeeb tshaj yog thaum resurfacing.

Siv latches qhib cov yam ntxwv hauv qab no:

  • txo nqi tsim tsev;
  • xav tau sijhawm tsawg rau kev ua haujlwm ntsig txog kev ua vaj tse thiab kev txhawb nqa;
  • tiv thaiv txheej ntawm lub hauv paus yog ib txwm tswj hwm;
  • kev ua haujlwm zoo tau zoo dua.

Nws tseem yuav tsum tau muab sau tseg tias qhov kev ntseeg tau thiab qhov zoo ntawm cov qauv ua vaj tse zaum kawg yog txaus cuam tshuam los ntawm cov txheej txheem kev tiv thaiv.

foundation tiv thaiv txheej ntawm pob zeb
foundation tiv thaiv txheej ntawm pob zeb

Ua haujlwm nce qib

Lub sijhawm dhau mus, txawm tias qhov kev tiv thaiv siab tshaj plaws ntawm cov pob zeb yuav tsum tau ua haujlwm rov tsim dua vim poob rau hauv lub xeev tsis tsim nyog. Lub reservoir rov qab siv ob txoj kev:

  • ua tiav sab saum toj hloov;
  • kho ib nrab, uas kuj suav nrog patching chips thiab tawg.

Hauv kev xaiv thib ob, nws yuav tsis siv zog ntau thiab lub sijhawm, ntawm no nws yog ib qho tsim nyog los ua cov chaw puas, ntxuav lawv thiab coated nrog primer. Patching tuaj yeem pib tsuas yog tom qab txhua qhov kev npaj ua tiav tiav.

Ua tiav kev hloov pauv ntawm lub hau saum toj kawg nkaus yuav tsum ua raws li qee yam kev cai thiab kev cai. Qhov xav tau kom tiavKev tsim kho dua tshiab tshwm sim hauv cov xwm txheej hauv qab no:

  • sib cais ntawm txheej tiv thaiv;
  • hloov cov yam ntxwv ntawm cov khoom;
  • hlau pib tawg vim muaj tshuaj lom neeg cuam tshuam nrog lawv ib puag ncig.
qhob npog meter
qhob npog meter

Reservoir hloov

Kev ua haujlwm pib nrog kev txiav txim siab ntawm qhov tuab, rau qhov no siv lub ntsuas npog pob zeb. Nws ua rau nws muaj peev xwm ntsuas cov cement tiv thaiv txheej, cov khoom siv tsis siv tau tom qab raug tshem tawm nrog kev saib xyuas zoo tshaj plaws rau qhov chaw uas cov ncej steel txuas.

Yog tias tsim nyog, cov hlau nplaum hauv cov txheej txheem ua vaj tse yog ntxuav los ntawm cov khoom corrosive, nrog rau cov plua plav thiab av uas twb muaj lawm.

Daim ntawv thov ntawm pob zeb mortar pib tom qab ua tiav cov txheej txheem npaj. Kev siv tshuab ntawm kev sib tov yog siv, uas yog kev faib cov khoom nyob rau hauv siab nyob rau hauv daim ntawv ntawm compressed cua. Ua tsaug rau kev siv cov txheej txheem no, kev sib cuam tshuam ntau dua ntawm kev daws teeb meem nrog lub dav hlau ntawm cov qauv thiab qhov haum ntawm cov khoom me me tau ua kom ntseeg tau. Lub mortar yuav tsum yog tsawg kawg yog 3 cm tuab.

Yog tias muaj kev puas tsuaj loj ntawm lub tsev uas tsis tuaj yeem tshem tawm nrog kev kho ib nrab, koj tuaj yeem siv cov txheej txheem tiv thaiv tshiab ntawm cov pob zeb qub. Pob zeb diamond tipped li yog siv thaum machining yuav tsum tau.

qhov siab tshaj plaws npog
qhov siab tshaj plaws npog

Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws

Rau lub tsev los ntawmreinforced pob zeb, lub anchoring ntawm reinforcing ntsiab yog ib qho tseem ceeb tshwj xeeb, uas xyuas kom meej qhov kev hloov ntawm tus tsim quab yuam nyob rau hauv lub tsim seem. Nws ntev yog qhia nyob rau hauv raws li qhov tseeb hais tias lub zog ua hauj lwm nyob rau hauv lub reinforcement yuav tsum tau coj los ntawm nws adhesion mus rau lub pob zeb nto raws tag nrho ntev ntawm lub anchoring. Raws li kev tiv thaiv lub zog ntawm cov cuab yeej kho, nyob ntawm seb lub peev xwm tensile ntawm cov pob zeb, qhov profile thiab qhov loj ntawm qhov cuab lub zog, qhov kev ntxhov siab ntawm cov ntaub ntawv.

Anchoring ntawm transverse-type reinforcement yog nqa tawm los ntawm khoov nws thiab welding nws mus rau longitudinal version los yog nws cov kev pab them nqi. Nyob rau hauv cov ntaub ntawv no, lub longitudinal reinforcement yuav tsum muaj ib txoj kab uas hla ntawm yam tsawg kawg yog ib nrab ntawm qhov loj ntawm transverse.

Lap fastening yuav tsum tau nqa tawm ntawm qhov deb uas yuav ua kom muaj kev hloov pauv ntawm kev suav quab yuam los ntawm ib feem kom koom nrog rau lwm qhov. Qhov ntev ntawm qhov sib tshooj nyob rau hauv lub ntsiab anchorage yog teem, thaum coj mus rau hauv tus account qhov chaw nruab nrab ntawm cov pob qij txha thiab cov pas nrig, cov txheej tiv thaiv ntawm cov pob zeb, tus naj npawb ntawm transverse-type reinforcement ntawm qhov sib txuas thiab cov pas nrig txuas ntawm ib qho chaw.

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