预制混凝土空心模剪力墙受弯性能试验研究_刘继良

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1、第36卷第7期2015年7月004建筑结构学报JournalofBuildingStructuresVol.36No.7July2015文章编号:1000-6869(2015)07-0026-09DOI:10．14006/j．jzjgxb．2015．07．004预制混凝土空心模剪力墙受弯性能试验研究111211刘继良，初明进，王刚，侯建群，刘木禾，邱光明(1．烟台大学土木工程学院，山东烟台264005;2．清华大学建筑设计研究院，北京100084)摘要:进行了1片钢筋混凝土剪力墙和3片预制混凝土空心模剪力墙的拟静力试验，

2、研究了预制混凝土空心模剪力墙的受弯性能和水平接缝的性能。结果表明，空心模剪力墙的破坏过程和破坏形态与钢筋混凝土剪力墙相似，受弯承载力基本相当;空心模剪力墙位移延性系数为6．26～7．71，破坏位移角为1/71～1/53，具有良好的变形能力。空心模剪力墙底部水平接缝处的滑移小于钢筋混凝土剪力墙，在总水平位移中所占比例小于10%，水平接缝构造合理，能够保证竖向装配单元间的有效连接，可用于实际工程。提高约束边缘纵筋配筋率和轴压比可提高空心模剪力墙的受弯承载力及刚度，改善水平接缝抵抗滑移的性能。关键词:预制混凝土剪力墙;空心模;

3、水平接缝;拟静力试验;受弯性能;刚度中图分类号:TU973．16TU317．1文献标志码:AExperimentalstudyonflexuralbehaviorsofconcreteshearwallsbuiltwithprecasttwo-wayhollowslabs111211LIUJiliang，CHUMingjin，WANGGang，HOUJianqun，LIUMuhe，QIUGuangming(1．SchoolofCivilEngineering，YantaiUniversity，Yantai264005，C

4、hina;2．ArchitecturalDesign＆ＲesearchInstitute，TsinghuaUniversity，Beijing100084，China)Abstract:Onereinforcedconcreteshearwallandthreeconcreteshearwallsbuiltwithprecasttwo-wayhollowslabsweretestedunderlowcycliclateralloadingtostudytheflexuralbehaviorsofprecastconcre

5、teshearwallsandthemechanicalperformanceofhorizontaljoint．Testresultsindicatethatthefailuremodeofprecastshearwallsissimilartoreinforcedconcreteshearwalls’，andtheflexuralcapacityofprecastconcreteshearwallsisequivalenttoreinforcedconcreteshearwalls’．Thestudyshowstha

6、tdisplacementductilityratiosofprecastconcreteshearwallsarebetween6．26and7．71，theultimatedisplacementangelsarebetween1/71and1/53，andtheprecastconcreteshearwallshaveadequatedeformability．Comparedtoreinforcedconcreteshearwalls，therootslipdeformationofprecastconcrete

7、shearwallsislowerandthepercentageintotalhorizontaldisplacementislessthan10%．Thehorizontaljointstructureisreasonable，anditcanbeusedinpracticalengineeringtoensuretheintegrityofdifferentassemblyelements．Asthereinforcementratioofconstraintboundaryelementsandaxialcomp

8、ressionratioareincreased，theflexuralcapacityandstiffnessofprecastconcreteshearwallsimprovesignificantly，andtheslipdeformationdecreases．Keywords:precastconcrete