内藏钢桁架组合中高剪力墙的抗震性能
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摘要
为了研究内藏钢桁架组合中高剪力墙的抗震性能,进行了6个1/3缩尺的中高剪力墙低周反复荷载试验,其中包括2个普通混凝土剪力墙、2个内藏钢框架混凝土剪力墙和2个内藏钢桁架混凝土剪力墙,轴压比分别是0.2、0.5。在试验研究基础上,对比分析了两种轴压比下各剪力墙的承载力、刚度、延性、滞回特性、耗能能力及破坏特征。试验及分析表明:在不同轴压比下,内藏钢桁架混凝土组合中高剪力墙的抗震性能比普通混凝土中高剪力墙的抗震性能显著提高;高轴压比下各剪力墙的承载力比低轴压比下相应剪力墙的承载力明显提高,但其延性及耗能能力降低。
In order to investigate the aseismic performance of mid-rise RC composite shear walls with concealed steel truss,the low-frequency quasi-static cyclic loading experiments on six 1/3 scale mid-rise shear walls,including two usual shear walls,two shear walls with concealed steel frame and two shear walls with concealed steel truss,were carried out.The shear wall specimens were given an axial compression ratio of 0.2 or 0.5.Based upon the experimental study,load-carrying capacity,the stiffness,ductility,hysteretic property,energy dissipation capacity and failure phenomena of each shear wall were comparatively analyzed.The experimental results show that compared with the usual shear walls,the seismic performance of the shear wall with concealed steel truss is obviously improved.Compared with the shear walls with low axial compression ratio,the load-carrying capacity of the shear walls with high axial compression ratio is significantly improved,but its ductility and energy dissipation capacity are decreased.
In order to investigate the aseismic performance of mid-rise RC composite shear walls with concealed steel truss,the low-frequency quasi-static cyclic loading experiments on six 1/3 scale mid-rise shear walls,including two usual shear walls,two shear walls with concealed steel frame and two shear walls with concealed steel truss,were carried out.The shear wall specimens were given an axial compression ratio of 0.2 or 0.5.Based upon the experimental study,load-carrying capacity,the stiffness,ductility,hysteretic property,energy dissipation capacity and failure phenomena of each shear wall were comparatively analyzed.The experimental results show that compared with the usual shear walls,the seismic performance of the shear wall with concealed steel truss is obviously improved.Compared with the shear walls with low axial compression ratio,the load-carrying capacity of the shear walls with high axial compression ratio is significantly improved,but its ductility and energy dissipation capacity are decreased.
引文
[1]曹万林,张建伟,崔立长,等.钢筋混凝土带暗支撑双功能低矮剪力墙抗震性能试验研究[J].建筑结构学报,2003,24(1):46-53.
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[4]曹万林,杨兴民,黄选明,等.带钢筋及钢骨暗支撑剪力墙抗震性能试验研究[J].世界地震工程,2005,21(1):1-6.
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[6]曹万林,范燕飞,张建伟,等.型钢混凝土剪力墙的抗震性能研究[J].地震工程与工程振动,2007,27(2):81-84.
[7]郑同亮,曹万林,张静娜,等.内藏钢桁架混凝土组合高剪力墙抗震性能试验研究[J].世界地震工程,2006,22(2):77-83.
[8]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
[2]曹万林,张建伟,田宝发.带暗支撑剪力墙体系抗震研究及应用[J].工程力学,2004,21(增刊):1-12.
[3]曹万林,张建伟,田宝发,等.带暗支撑低矮剪力墙抗震性能试验及承载力计算[J].土木工程学报,2004,37(3):44-51.
[4]曹万林,杨兴民,黄选明,等.带钢筋及钢骨暗支撑剪力墙抗震性能试验研究[J].世界地震工程,2005,21(1):1-6.
[5]曹万林,张建伟,田宝发,等.钢筋混凝土带暗支撑中高剪力墙抗震性能试验研究[J].建筑结构学报,2002,23(6):26-32.
[6]曹万林,范燕飞,张建伟,等.型钢混凝土剪力墙的抗震性能研究[J].地震工程与工程振动,2007,27(2):81-84.
[7]郑同亮,曹万林,张静娜,等.内藏钢桁架混凝土组合高剪力墙抗震性能试验研究[J].世界地震工程,2006,22(2):77-83.
[8]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
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