多层单排配筋剪力墙结构模拟地震振动台试验研究
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摘要
为了研究多层单排配筋剪力墙住宅结构,分析单排配筋混凝土剪力墙与双排配筋混凝土剪力墙抗震性能的差异,设计制作了一个1∶4缩尺的4层钢筋混凝土剪力墙结构模型,该模型的一侧墙体配筋为双排钢筋,另一侧墙体配筋为单排钢筋.对其进行了模拟地震振动台试验,研究了其动力特性以及不同烈度地震作用下结构的加速度反应、位移反应和破坏形态.试验表明,单排配筋剪力墙平面内的抗震性能好于双排配筋剪力墙,由于单排配筋翼缘和腹板的共同工作,其平面外性能与双排配筋剪力墙差异不大,单排配筋剪力墙可用于7度和8度区多层剪力墙住宅结构的抗震设计.
In order to conduct research on the residential structures of multi-story RC shear wall with single row of steel bars and make comparative study on the seismic performance of RC shear walls with single row of steel bars and that with double rows of steel bars,an experiment has been introduced in the paper,in which an earthquake simulation shaking table test has been applied to a 4-story model of 1/4 scale.In the model,bi-directional steel bars of double rows have been designed to one side while those of single row to another.The model's dynamic characteristics and responses of acceleration,deformation,and damage features under different level earthquake have been investigated.From the experiment,we have known that the in-plane seismic performance of RC shear wall with single row of steel bars is better than that of double rows,while out-plane performance of them are similar to the collaboration of the flange and the web.Therefore,RC shear walls with single row of steel bars can meet the seismic demands for residential structure with multi-story RC shear walls in areas of seismic intensity 7 or 8 degrees.
In order to conduct research on the residential structures of multi-story RC shear wall with single row of steel bars and make comparative study on the seismic performance of RC shear walls with single row of steel bars and that with double rows of steel bars,an experiment has been introduced in the paper,in which an earthquake simulation shaking table test has been applied to a 4-story model of 1/4 scale.In the model,bi-directional steel bars of double rows have been designed to one side while those of single row to another.The model's dynamic characteristics and responses of acceleration,deformation,and damage features under different level earthquake have been investigated.From the experiment,we have known that the in-plane seismic performance of RC shear wall with single row of steel bars is better than that of double rows,while out-plane performance of them are similar to the collaboration of the flange and the web.Therefore,RC shear walls with single row of steel bars can meet the seismic demands for residential structure with multi-story RC shear walls in areas of seismic intensity 7 or 8 degrees.
引文
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[2]刘晓,沈祖炎.多层钢结构住宅综合经济指标分析[J].建筑钢结构进展,2003(1):60-63.LIU Xiao,SHEN Zu-yan.Analysis of the overall economic benefits for multiple story steel residences[J].Progress in SteelBuilding Structures,2003(1):60-63.(in Chinese)
[3]曹万林,刘建民,王东增,等.异型柱框架结构底层支撑合理设置研究[J].地震工程与工程振动,1997,17(1):76-81.CAO Wan-lin,LIU Jian-min,WANG Dong-zeng,et al.The reasonable installation of the first storey bracings for framestructures with special-shaped columns[J].Earthquake Engineering and Engineering Vibration,1997,17(1):76-81.(inChinese)
[4]姚谦峰,丁永刚.密肋复合墙结构与空心砖砌体结构模型抗震试验对比分析[J].工业建筑,2007,37(2):37-40.YAO Qian-feng,DING Yong-gang.Experiment on seismic performance contrast of multi-ribbed wall structure and hollowbrickmasonry structure[J].Industrial Construction,2007,37(2):37-40.(in Chinese)
[5]GB50010—2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.GB50010—2002 Chinese code for design of concrete structures[S].Beijing:China Construction Industry Press,2002.(inChinese)
[6]JGJ3—2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.JGJ3—2002 Technical specification for concrete structures of tall building[S].Beijing:China Construction Industry Press,2002.(in Chinese)
[7]GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011—2001 Chinese code for seismic design of buildings[S].Beijing:China Construction Industry Press,2001.(inChinese)
[8]曹万林,孙超,杨兴民,等.双向单排配筋剪力墙节点抗震性能试验研究[J].地震工程与工程振动,2008,28(3):104-109.CAO Wan-lin,SUN Chao,YANG Xing-min,et al.Experimental study on seismic performance of RC shear wall joint with bi-directional single row of steel bars[J].Earthquake Engineering and Engineering Vibration,2008,28(3):104-109.(inChinese)
[9]曹万林,孙天兵,杨兴民,等.双向单排配筋混凝土高剪力墙抗震性能试验研究[J].世界地震工程,2008,24(3):14-19.CAO Wan-lin,SUN Tian-bing,YANG Xing-min,et al.Experimental study on seismic performance of high-rise shear wallwith bi-directional single row of steel bars[J].World Earthquake Engineering,2008,24(3):14-19.(in Chinese)
[10]曹万林,孙超,杨兴民,等.双向单排配筋剪力墙与连梁节点的抗震性能试验研究[J].世界地震工程,2008,24(3):84-88.CAO Wan-lin,SUN Chao,YANG Xing-min,et al.Test studies on seismic performance of joints of coupling beam and shearwall with bi-directional single row of steel bars[J].World Earthquake Engineering,2008,24(3):84-88.(in Chinese)
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