考虑填充墙影响的风雨操场混合结构位移角限值研究

Study on the limit of drift angle of gymnasiums considering infilled walls

本文对风雨操场混合结构的框排架结构部分的弹性位移角及弹塑性位移角限值取值的合理性开展了探讨,基于结构损伤破坏情况研判结构位移角限值取值的合理性,同时讨论了结构分析中是否应考虑填充墙对结构位移角影响的问题。研究表明:采用框架结构1/550弹性位移角限值对风雨操场混合结构刚度进行控制,可以满足三水准的设防要求。结构设计分析中考虑填充墙的分析结果更为合理可靠,更符合结构实际情况,更有助于判别结构薄弱部位。当结构遭遇极罕遇地震作用时,单柱位移角达到1/50左右,会发生严重破坏,甚至倒塌。

This paper discusses the rationality of the limit value of elastic displacement angle and elastic-plastic displacement angle of the frame bent structure of the mixed structure of the gymnasiums,studies and judges the rationality of the limit value of structural displacement angle based on the damage and failure of the structure,and discusses whether the influence of infilled walls on the structural displacement angle should be considered in the structural analysis.The research shows that the stiffness of the mixed structure of the gymnasiums can meet the three-level fortification requirements by using the 1/550 limit value of elastic displacement angle of the frame structure.In the structural design analysis,the analysis results considering the infilled walls are more reasonable and reliable,more in line with the actual situation of the structure,and more helpful to identify the weak parts of the structure.When the structure encounters an extremely rare earthquake,the displacement angle of a single column reaches about 1/50,the structure will suffer serious damage or even collapse.