关于板柱结构的适用高度

Suitable height of flat plate shear wallstructure in seismic zone

在美国及其他一些国家,板柱结构是最常被采用的结构形式之一。它的使用灵活,建筑净空较高,易于施工。但它的抗震性能究竟如何,令人怀疑,而震害又屡有发生,板柱节点的脆性破坏,如何防止?本文介绍了国外一些板柱结构的震害情况以及其原因的分析,并介绍国外规范对板柱结构的要求,结合新的抗震规范,作者提出一些设计建议供参考,使板柱-抗震墙结构可以建造得较高,以满足使用上的要求。

In USA and other countries, one of the most common floor systems is the flat plate. It provides architectural flexibility, more clear space, less building height, easier formwork and consequently shorter construction time. A serious problem that can arise in flat plate is brittle punching failure due to transfer of shearing forces during strong earthquake. Some effective design suggestions are given in this paper as a reference to the structural engineer so that he can design a higher building other than those specified in the 'Code for Seismic Design of Buildings (GB 50011-2001)'.