装配式空心剪力墙拟静力试验研究
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摘要
对2片不同轴压比的装配式空心剪力墙进行了拟静力试验,描述了该墙的破坏过程,分析了墙体的破坏特征、滞回特性、耗能能力等抗震性能。结果表明,装配式空心剪力墙主要呈弯剪破坏;随着轴压比的增大,墙体承载力增大,延性提高,耗能能力提高,刚度退化加快;装配式空心剪力墙的抗震性能良好,应用于三层及以下低轴压比结构时,具有较大的安全储备。最后,结合试验结果与相关文献结论,给出了该结构形式的装配式空心剪力墙的弹性刚度计算式修正系数。
The quasi-static experiment was conducted on 2 pieces of prefabricated hollow shear walls with different axial compression ratios. The failure process of the wall was described,and the seismic performance such as the failure characteristics,hysteresis characteristics and energy dissipation capacity of the walls were analyzed. The results show that the prefabricated hollow shear wall suffers from bending and shear failures. With the increase of the axial compression ratio,the bearing capacity of the wall is increased,the ductility is improved,the energy dissipation capacity is improved and the rigidity degradation is accelerated. The seismic performance of the prefabricated hollow shear wall is good,and it has large security reserves when it is applied to the structure with three layers or less under low axial pressure ratio. Finally,the correction coefficient of elastic stiffness calculation formula of the prefabricated hollow shear wall was given in combination with the experimental results and the related literatures.
The quasi-static experiment was conducted on 2 pieces of prefabricated hollow shear walls with different axial compression ratios. The failure process of the wall was described,and the seismic performance such as the failure characteristics,hysteresis characteristics and energy dissipation capacity of the walls were analyzed. The results show that the prefabricated hollow shear wall suffers from bending and shear failures. With the increase of the axial compression ratio,the bearing capacity of the wall is increased,the ductility is improved,the energy dissipation capacity is improved and the rigidity degradation is accelerated. The seismic performance of the prefabricated hollow shear wall is good,and it has large security reserves when it is applied to the structure with three layers or less under low axial pressure ratio. Finally,the correction coefficient of elastic stiffness calculation formula of the prefabricated hollow shear wall was given in combination with the experimental results and the related literatures.
引文
[1]姜洪斌,陈再现,张家齐,等.预制钢筋混凝土剪力墙结构拟静力试验研究[J].建筑结构学报,2011,32(6):34-40.
[2]张微敬,钱稼茹,于检生,等.竖向分布钢筋单排间接搭接的带现浇暗柱预制剪力墙抗震性能试验[J].土木工程学报,2012,45(10):89-97.
[3]SOUDKI K A,WEST J S,RIZKALLA S H,et al.Horizontal connections for precast concrete shear wall panels under cyclic shear loading[J].PCI Journal,1996,41(3):64-80.
[4]钱稼茹,杨新科,秦珩,等.竖向钢筋采用不同连接方法的预制钢筋混凝土剪力墙抗震性能试验[J].建筑结构学报,2011,32(6):51-59.
[5]许淑芳,张兴虎,王琼梅,等.钢筋混凝土空心剪力墙弯剪受力性能试验研究[J].西安科技大学学报,2005,25(4):465-468.
[6]刘继良,初明进,王刚,等.预制混凝土空心模剪力墙受弯性能试验研究[J].建筑结构学报,2015,36(7):26-34.
[7]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[8]张微敬,孟涛,钱稼茹,等.单片预制圆孔板剪力墙抗震性能试验[J].建筑结构,2010,40(6):76-80.
[9]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
[10]张弢.钢筋混凝土空心剪力墙刚度退化试验研究及框-剪结构中应用方法分析[D].西安:西安建筑科技大学,2004.
[2]张微敬,钱稼茹,于检生,等.竖向分布钢筋单排间接搭接的带现浇暗柱预制剪力墙抗震性能试验[J].土木工程学报,2012,45(10):89-97.
[3]SOUDKI K A,WEST J S,RIZKALLA S H,et al.Horizontal connections for precast concrete shear wall panels under cyclic shear loading[J].PCI Journal,1996,41(3):64-80.
[4]钱稼茹,杨新科,秦珩,等.竖向钢筋采用不同连接方法的预制钢筋混凝土剪力墙抗震性能试验[J].建筑结构学报,2011,32(6):51-59.
[5]许淑芳,张兴虎,王琼梅,等.钢筋混凝土空心剪力墙弯剪受力性能试验研究[J].西安科技大学学报,2005,25(4):465-468.
[6]刘继良,初明进,王刚,等.预制混凝土空心模剪力墙受弯性能试验研究[J].建筑结构学报,2015,36(7):26-34.
[7]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.
[8]张微敬,孟涛,钱稼茹,等.单片预制圆孔板剪力墙抗震性能试验[J].建筑结构,2010,40(6):76-80.
[9]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
[10]张弢.钢筋混凝土空心剪力墙刚度退化试验研究及框-剪结构中应用方法分析[D].西安:西安建筑科技大学,2004.