钢管混凝土叠合边框内藏钢桁架剪力墙振动台试验研究
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摘要
进行了4个钢管混凝土叠合边框剪力墙模型的模拟地震振动台试验,包括:1个高宽比为1.6的钢管混凝土叠合边框剪力墙,1个高宽比为1.6的钢管混凝土叠合边框内藏钢桁架剪力墙,1个高宽比为3.0的为钢管混凝土叠合边框剪力墙,1个高宽比为3.0的钢管混凝土叠合边框内藏钢桁架剪力墙。试验中输入Taft地震波,测试了各试件在不同峰值加速度下的时程地震反应及其动力特性,分析了剪力墙损伤过程及破坏特征。研究表明,钢管混凝土叠合边框内藏钢桁架剪力墙比普通钢管混凝土叠合柱边框剪力墙承载力高、刚度退化慢、延性好、抗震耗能能力强。
Shaking table test of four composite shear walls with steel tube-reinforced concrete column has been carried out.Two walls' ratio of height to width is 1.6,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss;two walls' ratio of height to width is 3.0,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss.The "Taft" seismic wave was input in the shaking table test.In the experiment,dynamic character,dynamic response,damage process and failure mode of the four shear walls in different seismic peak acceleration are contrastively analyzed.The study results indicate that compared with shear wall with steel tube-reinforced concrete column,the composite shear walls with steel tube-reinforced concrete column and concealed steel truss have the following performances that the load-carrying capacity is higher,the stiffness' degradation is more slower,the ductility is more better,and the seismic behavior is significantly improved.
Shaking table test of four composite shear walls with steel tube-reinforced concrete column has been carried out.Two walls' ratio of height to width is 1.6,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss;two walls' ratio of height to width is 3.0,of which one is composite shear wall with steel tube-reinforced concrete column,another is composite shear wall with steel tube-reinforced concrete column and concealed steel truss.The "Taft" seismic wave was input in the shaking table test.In the experiment,dynamic character,dynamic response,damage process and failure mode of the four shear walls in different seismic peak acceleration are contrastively analyzed.The study results indicate that compared with shear wall with steel tube-reinforced concrete column,the composite shear walls with steel tube-reinforced concrete column and concealed steel truss have the following performances that the load-carrying capacity is higher,the stiffness' degradation is more slower,the ductility is more better,and the seismic behavior is significantly improved.
引文
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[2]徐培福.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.XU Peifu.Design of complex high-rise structures[M].Chinese Architecture and Building Press,2005.
[3]胡利,王春磊,李锋宁.钢-混凝土组合结构的研究进展[J].华北水利水电学院学报,2009,30(2):51-53.HU Li,WANG Chunlei,LI Fengning.Research of the steel-concrete composite structure[J].Journal of North China Institute of Water Conser-vancy and Hydroelectric Power,2009,30(2):51-53.
[4]曹万林,赵长军,张建伟,等.带暗支撑短肢剪力墙结构振动台试验研究[J].建筑结构学报,2008,29(1):76-85.CAO Wanlin,ZHAO Changjun,ZHANG Jianwei,et al.Earthquake simulation test on short pier RC shear wall structure with concealed bracings[J].Journal of Building Structures,2008,29(1):76-85.
[5]王志惠,曹万林,张建伟.等.高轴压比下钢桁架-混凝土组合剪力墙抗震研究[J].世界地震工程,2007,23(2):102-106.WANG Zhihui,CAO Wanlin,ZHANG Jianwei,et al.Study on seismic behavior of a steel truss-concrete shear wall with high axial compressiveratio[J].Word Earthquake Engineering,2007,23(2):102-106.
[6]曹万林,王敏,王绍合,等.高轴压比下钢管混凝土边框组合剪力墙抗震性能试验研究[J].地震工程与工程振动,2008,28(1):85-89.CAO Wanlin,WANG Min,WANG Shaohe,et al.Seismic behavior research on composite shear wall with concrete filled steel tube columns inhigh axial-load ratio[J].Journal of Earthquake Engineering and Engineering Vibration,2008,28(1):85-89.
[7]王敏,曹万林,张建伟,等.不同轴压比下钢管混凝土边框组合剪力墙抗震性能研究[J].世界地震工程,2008,24(2):32-36.WANG Min,CAO Wanlin,ZHANG Jianwei,et al.Seismic behavior research of composite shear wall with concrete filled steel tube columns fordifferent axial-load ratios[J].Word Earthquake Engineering,2008,24(2):32-36.
[8]曹万林,杨亚彬,张建伟,等.圆钢管混凝土边框内藏桁架剪力墙抗震性能[J].东南大学学报(自然科学版),2009,39(6):1187-1192.CAO Wanlin,YANG Yabin,ZHANG Jianwei,et al.Seismic behaviors of shear wall with concrete filled round steel tube columns and concealedbracing[J].Journal of Southeast University(Natural Science),2009,39(S6):1187-1192.
[9]杜国锋,许成祥,江楚雄.钢管混凝土框架结构模拟地震振动台试验[J].重庆大学学报,2008,31(2):228-231.DU Guofeng,XU Chengxiang,JIANG Chuxiong.Earthquake simulation shaking table test of concrete-filled steel tube frame Structure.Journal ofChongqing University,2008,31(2):228-231.
[10]曹万林,卢智成,张建伟.核心筒部分悬挂结构振动台试验及分析[J].土木工程学报,2007,40(3):40-45.CAO Wanlin,LU Zhicheng,ZHANG Jianwei.Shaking table test and analysis of core-tube partial suspension structures[J].China Civil Engineer-ing Journal,2007,40(3):40-45.
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