摘要
本文通过 3榀高宽比分别为 1 .0 ,1 .5和 2 .0的高性能混凝土剪力墙的水平低周反复荷载试验 ,着重考察了高宽比变化对高性能混凝土剪力墙开裂方式、强度、滞回和耗能特征以及刚度退化等抗震性能的影响。分析表明 ,即使高宽比为 1 .0的低剪力墙 ,同样可具有良好的延性性能。文章最后采用修正压力场理论对其抗剪承载力进行了计算 ,结果符合很好。
Based on tests of 3 high-performance concrete shear walls with various aspect ratios under low frequency cyclic static load,the effect of aspect ratio on the seismic behavior such as failure mode,shear capacity,characteristic of resilience,energy dissipation and rigidity degeneration had been investigated,showing that even the shear wall with lower a spect ratio of 1.0 can have good ductility. At last,the modified compression field theory was used to calculate the shear capacities of these walls,which indicated that the calculated results are in close agreement with test results.
出处
《结构工程师》
2004年第2期62-68,共7页
Structural Engineers
关键词
高性能混凝土
剪力墙
高宽比
抗震性能
荷载
修正压力场理论
high-performance concrete, shear walls, aspect ratio, seismic behavior, modified compression field theory
