Detailed Design and Construction of Prefabricated Buildings 装配式建筑深化设计与施工 -Curing and Demoulding of Members 构件养护及脱模69课件讲解

DetailedDesignandConstructionofPrefabricatedBuildings

装配式建筑深化设计与施工CuringandDemouldingofMembers

构件养护及脱模CuringandDemouldingofMembers

构件养护及脱模YangChunhui

杨春辉Lecturer

主讲教师Sincewehavelearnedthepouringofprefabricatedmembers,howcanwecureandstripthemembers?

我们学习了预制构件的浇筑工作，那么构件是如何养护和脱模呢？Lead-in

课前导入SteamCuringofAFixedDieSet

固定模台蒸汽养护MembersDemoulding

构件脱模CuringandDemouldingofMembers

构件养护及脱模OperationProcedures

操作流程SteamCuringofAFixedDieSet

固定模台蒸汽养护SpecificOperationsofSteamCuringofAFixedDieSet

固定模台蒸汽养护的具体操作CuringandDemouldingofMembers

构件养护及脱模(I)Thecuringcovershallhavegoodthermalinsulationeffectandshallbefreeofdamageandairleakage.

（一）养护罩应具有较好的保温效果且不得有破损、漏气等。CuringandDemouldingofMembers

构件养护及脱模SpecificOperationsofSteamCuringofAFixedDieSet

固定模台蒸汽养护的具体操作(II)Atemperaturedetectionprobeshallbesetatthecenterofthecovertop.

（二）在罩顶中央处设置好温度检测探头。Standstillatnormaltemperature2h~6h

常温静停2h~6hCuringandDemouldingofMembers

构件养护及脱模SpecificOperationsofSteamCuringofAFixedDieSet

固定模台蒸汽养护的具体操作(III)Setsteamcuringparametersonthetemperaturecontrolhost,includingpre-curingtime,temperatureriserate,maximumtemperature,constanttemperaturetime,coolingrate,etc.

（三）在温控主机上设置好蒸汽养护参数，包括预养护时间、升温速率、最高温度、恒温时间、降温速率等。Standstillatnormaltemperature2h~6h

常温静停2h~6hCuringandDemouldingofMembers

构件养护及脱模SpecificOperationsofSteamCuringofAFixedDieSet

固定模台蒸汽养护的具体操作(IV)Specialpersonnelshallbeassignedtooperateandmonitorthewholeprocessofsteamcuringtocheckthecuringeffect.

（四）蒸汽养护的全过程，应设专人操作和监控，检查养护效果。Standstillatnormaltemperature2h~6h

常温静停2h~6hMaximumtemperature≤70°

最高≤70°CuringandDemouldingofMembers

构件养护及脱模SpecificOperationsofSteamCuringofAFixedDieSet

固定模台蒸汽养护的具体操作(V)Whenthedifferencebetweenthetemperatureinthecuringcoverandtheambienttemperatureislessthanthepresettemperature,thesystemwillautomaticallyendthesteamcuringprocess.

（五）当养护罩内的温度与环境温度差值小于预设温度时，系统将自动结束蒸汽养护程序。MembersDemoulding

构件脱模SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(I)Beforeformworkremoval,thecompressivestrengthtestofconcretetestblocksunderthesameconditionsshallbecarriedout.Thecompressivestrengthofthetestblocksshallmeetthedesignrequirementsandshouldnotbelessthan15MPa,andtheprefabricatedmemberscanbedemoulded.

（一）拆模前，应做混凝土试块同条件抗压强度试验，试块抗压强度应满足设计要求且不宜小于15MPa，预制构件方可脱模。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(II)Removethefixingboltsoftheembeddedpartsinstalledonthemold.

（二）拆除安装在模具上的预埋件的固定螺栓。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(III)Removethefixingboltsofsideformwork,bottomformworkandinnerformwork.

（三）拆除边模、底模、内模等的固定螺栓。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(IV)Removetheinnerformworkandsideformwork.

（四）拆除内模、边模。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(V)Installthespecialliftingapplianceonthedemouldingembeddedpartsofprefabricatedmembersandtightenthebolts.

（五）将专用吊具安装到预制构件脱模埋件上，拧紧螺栓。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模(VI)Theprefabricatedmembersshallnotbedamaged,theformworkshallnotberemovedbyvibration,andthemembersshallbeliftedtothewashingareaforwashing.

（六）不应损伤预制构件，不得使用震动方式拆模，并将构件吊运至冲洗区冲洗。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模Afterdemoulding,thelocaldamagesthatdonotaffectthestructuralperformanceandthenon-stressedcracksonthesurfaceshallberepairedwithrepairslurry.

脱模后对不影响结构性能的局部破损，和表面非受力裂缝，用修补浆料进行表面修补。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模First,thebasecourseshallbetreated,moistenedbycleanwater,andrepairedwithrepairagent.Afterthat,theconcreteshallbecoloredandthequalityshallbeaccepted.

首先进行基层处理，使用清水湿润，修补剂修补，进行混凝土调色处理并进行质量验收。SpecificOperationofMembersDemoulding

构件脱模的具体操作CuringandDemouldingofMembers

构件养护及脱模First,thebasecourseshallbetreated,moistenedbycleanwater,andrepairedwithrepairagent.Afterthat,theconcreteshallbecoloredandthequalityshallbeaccepted.

首先进行基层处理，使用清水湿润，修补剂修补，进行混凝土调色处理并进行质量验收。Summary

课后小结I.SteamCuring

一、蒸汽养护II.OperationsofMemberDemoulding

二、构件脱模操作CuringandDemouldingofMembers

构件养护及脱模Summary

课后小结

Membercuringanddemouldingisanimportantstepinthefabricationofprefabricatedmembers,andcultivatingworkers'carefulatt