DetailedDesignandConstructionofPrefabricatedBuildings

裝配式建筑深化設計與施工CuringandDemouldingofMembers

構件養護及脫模CuringandDemouldingofMembers

構件養護及脫模YangChunhui

楊春輝Lecturer

主講教師Sincewehavelearnedthepouringofprefabricatedmembers,howcanwecureandstripthemembers?

我們學習了預制構件的澆筑工作，那么構件是如何養護和脫模呢？Lead-in

課前導入SteamCuringofAFixedDieSet

固定模臺蒸汽養護MembersDemoulding

構件脫模CuringandDemouldingofMembers

構件養護及脫模OperationProcedures

操作流程SteamCuringofAFixedDieSet

固定模臺蒸汽養護SpecificOperationsofSteamCuringofAFixedDieSet

固定模臺蒸汽養護的具體操作CuringandDemouldingofMembers

構件養護及脫模(I)Thecuringcovershallhavegoodthermalinsulationeffectandshallbefreeofdamageandairleakage.

（一）養護罩應具有較好的保溫效果且不得有破損、漏氣等。CuringandDemouldingofMembers

構件養護及脫模SpecificOperationsofSteamCuringofAFixedDieSet

固定模臺蒸汽養護的具體操作(II)Atemperaturedetectionprobeshallbesetatthecenterofthecovertop.

（二）在罩頂中央處設置好溫度檢測探頭。Standstillatnormaltemperature2h~6h

常溫靜停2h~6hCuringandDemouldingofMembers

構件養護及脫模SpecificOperationsofSteamCuringofAFixedDieSet

固定模臺蒸汽養護的具體操作(III)Setsteamcuringparametersonthetemperaturecontrolhost,includingpre-curingtime,temperatureriserate,maximumtemperature,constanttemperaturetime,coolingrate,etc.

（三）在溫控主機上設置好蒸汽養護參數，包括預養護時間、升溫速率、最高溫度、恒溫時間、降溫速率等。Standstillatnormaltemperature2h~6h

常溫靜停2h~6hCuringandDemouldingofMembers

構件養護及脫模SpecificOperationsofSteamCuringofAFixedDieSet

固定模臺蒸汽養護的具體操作(IV)Specialpersonnelshallbeassignedtooperateandmonitorthewholeprocessofsteamcuringtocheckthecuringeffect.

（四）蒸汽養護的全過程，應設專人操作和監控，檢查養護效果。Standstillatnormaltemperature2h~6h

常溫靜停2h~6hMaximumtemperature≤70°

最高≤70°CuringandDemouldingofMembers

構件養護及脫模SpecificOperationsofSteamCuringofAFixedDieSet

固定模臺蒸汽養護的具體操作(V)Whenthedifferencebetweenthetemperatureinthecuringcoverandtheambienttemperatureislessthanthepresettemperature,thesystemwillautomaticallyendthesteamcuringprocess.

（五）當養護罩內的溫度與環境溫度差值小于預設溫度時，系統將自動結束蒸汽養護程序。MembersDemoulding

構件脫模SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(I)Beforeformworkremoval,thecompressivestrengthtestofconcretetestblocksunderthesameconditionsshallbecarriedout.Thecompressivestrengthofthetestblocksshallmeetthedesignrequirementsandshouldnotbelessthan15MPa,andtheprefabricatedmemberscanbedemoulded.

（一）拆模前，應做混凝土試塊同條件抗壓強度試驗，試塊抗壓強度應滿足設計要求且不宜小于15MPa，預制構件方可脫模。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(II)Removethefixingboltsoftheembeddedpartsinstalledonthemold.

（二）拆除安裝在模具上的預埋件的固定螺栓。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(III)Removethefixingboltsofsideformwork,bottomformworkandinnerformwork.

（三）拆除邊模、底模、內模等的固定螺栓。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(IV)Removetheinnerformworkandsideformwork.

（四）拆除內模、邊模。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(V)Installthespecialliftingapplianceonthedemouldingembeddedpartsofprefabricatedmembersandtightenthebolts.

（五）將專用吊具安裝到預制構件脫模埋件上，擰緊螺栓。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模(VI)Theprefabricatedmembersshallnotbedamaged,theformworkshallnotberemovedbyvibration,andthemembersshallbeliftedtothewashingareaforwashing.

（六）不應損傷預制構件，不得使用震動方式拆模，并將構件吊運至沖洗區沖洗。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模Afterdemoulding,thelocaldamagesthatdonotaffectthestructuralperformanceandthenon-stressedcracksonthesurfaceshallberepairedwithrepairslurry.

脫模后對不影響結構性能的局部破損，和表面非受力裂縫，用修補漿料進行表面修補。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模First,thebasecourseshallbetreated,moistenedbycleanwater,andrepairedwithrepairagent.Afterthat,theconcreteshallbecoloredandthequalityshallbeaccepted.

首先進行基層處理，使用清水濕潤，修補劑修補，進行混凝土調色處理并進行質量驗收。SpecificOperationofMembersDemoulding

構件脫模的具體操作CuringandDemouldingofMembers

構件養護及脫模First,thebasecourseshallbetreated,moistenedbycleanwater,andrepairedwithrepairagent.Afterthat,theconcreteshallbecoloredandthequalityshallbeaccepted.

首先進行基層處理，使用清水濕潤，修補劑修補，進行混凝土調色處理并進行質量驗收。Summary

課后小結I.SteamCuring

一、蒸汽養護II.OperationsofMemberDemoulding

二、構件脫模操作CuringandDemouldingofMembers

構件養護及脫模Summary

課后小結

Membercuringanddemouldingisanimportantstepinthefabricationofprefabricatedmembers,andcultivatingworkers'carefulatt