竖向钢筋套筒浆锚连接的预制剪力墙抗震性能试验_钱稼茹

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1、第41卷第2期建筑结构Vol.41No.22011年2月BuildingStructureFeb.2011*竖向钢筋套筒浆锚连接的预制剪力墙抗震性能试验11222233钱稼茹，彭媛媛，张景明，秦珩，李建树，刘国权，赵丰东，李禄荣(1清华大学土木工程安全与耐久教育部重点实验室，北京100084;2北京万科企业有限公司，北京100125;3北京市城建技术开发中心，北京100055)［摘要］为研究竖向钢筋套筒浆锚连接的预制剪力墙的抗震性能，完成了5个剪跨比为2.25的剪力墙试件的拟静力试验，其中一个为现浇墙试件，两个为全预制墙试件，

2、两个为采用竖向现浇带连接的预制墙试件，预制墙的竖向钢筋与地梁预留的竖向钢筋采用套筒浆锚直接连接。试验结果表明:套筒浆锚连接能够有效传递竖向钢筋的应力;预制墙试件的破坏形态与现浇墙试件的破坏形态相同，为钢筋受拉屈服、混凝土受压破坏;预制墙试件的刚度和耗能能力与现浇墙试件相当，极限位移角达1/59～1/48;预制墙的受压承载力可采用现行规范计算;竖向现浇带能将预制墙连接成整体，预制墙侧面采用粗糙面的连接性能优于键槽的连接性能。［关键词］预制剪力墙;套筒浆锚连接;键槽;粗糙面;抗震性能;拟静力试验中图分类号:TU375文献标识码:A

3、文章编号:1002-848X(2011)02-0001-06Testsonseismicbehaviorofpre-castshearwallswithverticalreinforcementssplicedbygroutsleeves1122QianJiaru，PengYuanyuan，ZhangJingming，QinHeng，2233LiJianshu，LiuGuoquan，ZhaoFengdong，LiLurong(1KeyLaboratoryofCivilEngineeringSafetyandDurability

4、ofChinaEducationMinistry，TsinghuaUniversity，Beijing100084，China;2BeijingWankeCo.，Ltd.，Beijing100125，China;3CenterofConstructionScience＆Technology，BeijingMunicipalCommissionofHousingandUrban-RuralDevelopment，Beijing100055，China)Abstract:Tostudyseismicbehaviorofpre-ca

5、streinforcedconcrete(RC)shearwallswithverticalreinforcementssplicedbygroutsleeves，quasi-statictestsof5shearwallspecimenswithshearspanratioof2.25wereperformed.Amongthem，oneiscast-in-siteRCwallspecimen，twoarefullpre-castwallspecimens，othertwoarespecimensoftwopre-castw

6、allsconnectedwithacast-in-siteRCstripe.Theverticalreinforcementsofthepre-castwallspecimensaresplicedbygroutsleeves.Thetestresultsindicatethatthestressesoftheverticalreinforcementscanbetransferredeffectivelybygroutsleeves.Thefailuremodeofthepre-castwallspecimensisthe

7、sameasthatofthecast-in-sitewallspecimen，i.e.，tensileyieldofreinforcementsandcompressivefailureofconcrete.Thestiffnessandtheenergydissipationcapacityofthepre-castwallspecimensaresimilarwiththoseofthecast-in-sitewallspecimen.Theultimatedriftratiosofthepre-castwallspec

8、imensare1/59～1/48.Thecurrentcodeformulasaresuitableforcalculatingthecompressivestrengthofthepre-castshearwalls.Thecast-in-sitestripeconnec