再生骨料掺量对中高剪力墙抗震性能影响试验研究
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摘要
为了研究不同再生骨料掺量、配筋形式的剪力墙抗震性能,进行5个中高剪力墙的低周反复荷载试验研究。在试验的基础上,分析各剪力墙的滞回特性、承载力、延性、刚度及其退化过程、耗能及破坏特征。研究表明:再生骨料掺量的增加,使再生混凝土中高剪力墙的抗震性能有所降低;钢筋混凝土格构暗支撑能明显改善再生混凝土中高剪力墙的抗震性能。经过合理设计,再生混凝土剪力墙可以满足建筑结构抗震要求。
In order to investigate the seismic performance of mid-rise recycled concrete shear wall with different percentage of aggregate replacement and different style of reinforcement,5 mid-rise shear walls were tested under the horizontal cyclic loading.Based on the experiment,the hysteretic behavior,load-carrying capacity,ductility,stiffness and its deterioration process,energy dissipation and failure feature of the specimens were analyzed systematically.The results show that the more the percentage of the aggregate replacement,the poorer the seismic performance of recycled concrete shear walls;and the seismic performance of recycled aggregate concrete shear wall could be greatly improved by setting concealed bracings in the wall.Through reasonable design,the recycled concrete shear wall is able to satisfy the anti-seismic requirements.
In order to investigate the seismic performance of mid-rise recycled concrete shear wall with different percentage of aggregate replacement and different style of reinforcement,5 mid-rise shear walls were tested under the horizontal cyclic loading.Based on the experiment,the hysteretic behavior,load-carrying capacity,ductility,stiffness and its deterioration process,energy dissipation and failure feature of the specimens were analyzed systematically.The results show that the more the percentage of the aggregate replacement,the poorer the seismic performance of recycled concrete shear walls;and the seismic performance of recycled aggregate concrete shear wall could be greatly improved by setting concealed bracings in the wall.Through reasonable design,the recycled concrete shear wall is able to satisfy the anti-seismic requirements.
引文
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[3]肖建庄,沈宏波,黄运标.再生混凝土柱受压性能试验[J].结构工程师,2006,22(6):73-77(Xiao Jianzhuang,Shen Hongbo,Huang Yunbiao.Test on compression performance of recycled concrete columns[J].Structural Engineers,2006,22(6):73-77(in Chinese))
[4]肖建庄,兰阳.再生粗骨料混凝土梁抗弯性能试验研究[J].特种结构,2006,23(1):9-12
[5]孙跃东,肖建庄,周德源,等.再生混凝土框架抗震性能的试验研究[J].土木工程学报,2006,39(5):9-15(Sun Yuedong,Xiao Jianzhuang,Zhou Deyuan,et al.An experimental study on the seismic behavior of recycled concrete frames[J].China Civil Engineering Journal,2006,39(5):9-15(in Chinese))
[6]肖建庄,朱晓晖.再生混凝土框架节点抗震性能研究[J].同济大学学报:自然科学版,2005,33(4):436-440(Xiao Jianzhuang,Zhu Xiaohui.Study on seismic behavior of recycled concrete frame joints[J].Journal of Tongji University:Natural Scionce,2005,33(4):436-440(in Chinese))
[7]曹万林,张亚齐,尹海鹏,等.再生混凝土结构抗震性能研究进展[C]//首届全国再生混凝土研究和应用学术交流会论文集.上海,2008
[8]曹万林,刘强,张建伟,等.再生混凝土低矮剪力墙抗震性能试验研究[J].世界地震工程,2009,25(1):1-5(Cao Wanlin,Liu Qiang,Zhang Jianwei,et al.Experimental study on seismic performance of low-rise recyeled aggregate concrete shear wall[J].World Earthquake Engineering,2009,25(1):1-5(in Chinese))
[9]曹万林,徐泰光,刘强,等.再生混凝土高剪力墙抗震性能试验研究[J].世界地震工程,2009,25(2):18-23(Cao Wanlin,Xu Taiguang,Liu Qiang,et al.Experimental study on seismic performance of high-rise recycled aggregate concrete shear wall[J].World Earthquake Engineering,2009,25(2):18-23(in Chinese))
[10]程文瀼,颜德姮,康谷贻.混凝土结构[M].第四版.北京:中国建筑工业出版社,2002
[11]GB50010—2002混凝土结构设计规范[S].北京:中国建筑工业出版社(GB50010—2002Code for design of concrete structures[S].Beijing:China Architecture and Building Press,2002(in Chinese))
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