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工程力学  2015 

基于抗剪承载能力设计的多层钢板剪力墙抗震性能试验研究

DOI: 10.6052/j.issn.1000-4750.2013.10.0963, PP. 54-61

Keywords: 薄钢板剪力墙,抗震性能,耗能,抗侧刚度,倾覆力矩,主拉应力

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Abstract:

通过基于剪力墙板“屈服前屈曲”抗剪承载力设计准则设计的钢框架-薄钢板剪力墙原型结构,按1/4缩尺设计的三层试件进行水平低周反复荷载试验,得到了多层薄钢板剪力墙结构在水平荷载作用下的抗侧刚度、结构耗能、水平剪力和倾覆力矩在钢框架与剪力墙板之间的百分比分配、剪力墙板平面外位移及主拉应力的倾角,结果表明:结构的水平抗侧刚度随着荷载加载等级的增加而逐渐减小,但减小的幅度却越来越小;试件的耗能能力很强,结构在最后一级加载循环时消耗了6.7倍的屈服能;各层的耗能量随着加载位移的增加而逐渐变大,二层的耗能量最大,顶层次之,底层最小;在结构处于第1级加载的弹性状态时,剪力墙板承担的水平荷载比例约为60%~65%,钢框架承担的倾覆力矩比例约为80%;剪力墙板的主拉应力倾角变化范围为30°~51°。

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