圆钢管混凝土边框多重组合低矮剪力墙的抗震性能

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1、学兔兔www.xuetutu.com第28卷第3期建筑科学与工程学报Vo1．28NO．32011年9月JournalofArchitectureandCivilEngineeringSpet．2011文章编号：16732049(2011)03—0023—06圆钢管混凝土边框多重组合低矮剪力墙的抗震性能张建伟，杨亚彬，曹万林，董宏英(北京工业大学建筑工程学院，北京100124)摘要：为了解钢管混凝土边框内藏铜桁架剪力墙这种新型多重组合剪力墙的抗震性能，进行了3个剪跨比为1．0的低矮剪力墙低周反复荷载试验

2、，包括1个普通混凝土剪力墙、1个圆钢管混凝土边框剪力墙和1个圆钢管混凝土边框内藏钢桁架剪力墙；对比分析了3个低矮剪力墙的实测承栽力、延性、刚度及其退化过程、滞回特性、耗能能力及破坏特征；使用简化力学模型计算了各剪力墙的承载力，计算结果与试验结果吻合较好。结果表明：圆钢管混凝土边框内藏钢桁架低矮剪力墙的抗震性能比普通混凝土低矮剪力墙显著提高，比圆钢管混凝土边框低矮剪力墙明显提高。关键词：圆钢管混凝土柱；钢桁架；低矮剪力墙；抗震性能；承载力中图分类号：TU352．1文献标志码：ASeismicPerfor

3、manceofCompositeLow-riseShearWallwithConcrete-filledRoundSteelTubeC：olumnsandConcealedSteelTfussesZHANGJian—wei，YANGYa—bin，CA()Wan—lin，DONGHong—ying(SchoolofArchitectureandCivilEngineering，BeijngUniversityofTechnology，Beijing100124，China)Abstract：Inorde

4、rtoascertaintheseismicperformanceoftheproposednewkindofconcrete—filled—steel—tube—columnshearwal1．anexperimentwascarriedoutonthreeIOW—riseshearwallswithashear—spanratioof1．0，includingonetraditionalreinforcedconcrete(RC)shearwall，onecompositeshearwallwit

5、hconcrete—filledroundsteeltubecolumns，andonecompositeshearwallwithconcrete—filledroundsteeltubecolumnsandconcealedstee1trusses．Basedonthedatafromthisexperiment，theload—carryingcapacity，ductility，stiffnessanditsattenuation，hystereticproperty，energydissip

6、ationandfailurecharacteristicofeachshearwallwerecontrastivelyanalyzed．Thecalculatedresultsobtainedfromthesimplifiedmechanicalmodelwereingoodagreementwiththosefromtheexperiment．Theresultsshowthattheseismicperformanceofthecompositeshearwallwithconcrete—fi

7、lledroundsteeltubecolumnsandconcealedsteeltrussesisincreasedsignificantlyovertraditionalreinforcedconcreteshearwalls，whileatthesametime，itshowsasignificantimprovementovercompositeshearwallswithconcrete—filledroundsteeltubecolumns．Keywords：concrete—fille

8、droundsteeltubecolumn；steeltruss；low—riseshearwall；seismicper—formance：load—carryingcapacity收稿日期：20110419基金项目：国家自然科学基金项目(50878007)；北京市科技重大项目(D08050603720000)；北京市教委科技计划重点项目(KZ200910005008)作者简介：张建伟(1971-)，男，河北丰润人，副教授，工学博士，博士后，Email