多层砌体结构墙体整体破坏模式研究
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摘要
在总结砌体结构墙体震害特征的基础上,提出了多层砌体结构地震作用下3种典型的墙体整体破坏模式;对各种破坏模式的破坏特征进行了分析与验证,对比研究了各类破坏模式对砌体结构整体抗震性能的影响,指出窗下墙先于窗间墙发生破坏的模式是砌体结构较为理想的墙体破坏模式;同时,结合震害现象阐明了我国现行规范中砌体结构设计方法存在的不足之处,为规范的修订与完善提供参考。
According to the general laws of the earthquake damage phenomenon,three typical kinds of failure modes of multi-story masonry wall,i.e.window belly wall,window pier wall and mixed of the two and damage distribution were proposed.The characters of three different failure modes were analyzed and comparative study on seismic performance of structure with various failure modes was carried out.In respect to seismic behavior,the masonry stucture with window belly wall is better than that with windew pier wall The shortcomings of the masonry structures design method expounded in current design codes of China were put forward which may provide a reference to the improvement and amendment of the current codes.
引文
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