侧向荷载分布方式对高层建筑静力弹塑性分析结果的影响  

The Influence of Lateral Load Patterns on the Results of Static Pushover Analysis in High-rise Building

作　　者：杨万[1] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510641

出　　处：《华南地震》2014年第B04期12-17,共6页South China Journal of Seismology

摘　　要：Pushover方法作为一种建筑结构弹塑性地震响应的简化近似计算方法和抗震性能评价方法已得到广泛应用。但由于其理论基础不严密,其准确性需要给予必要确认,同时其适用性也受到一定的限值。就侧向荷载分布方式,对静力弹塑性pushover分析结果的影响进行了研究。用四种不同的侧向荷载分布方式,对一栋24层的高层结构进行了分析。分析结果表明:在不同侧向荷载分布方式作用下,pushover分析结果相差很大。就分析结果而言,选择实时模态的荷载分布方式更为合理。The nonlinear static pushover analysis procedure is now widely used as a simple method to estimate the inelastic seismic response for building structures. However, the accuracy of the method still needs to be validated because of the inherent limitations in its theory. Besides, there are some limitations on the application of this method. In this paper, the influence of lateral load patterns on the results of static pushover analysis has been studied. The static pushover analysis with four different lateral load patterns was applied to a tall building of 24 stories. It is demonstrated that the analysis results may vary significantly under different lateral load patterns. In terms of the analysis results, feasibility load pattern is more reasonable.

关 键 词：静力弹塑性分析 高层结构 侧向荷载分布方式 

分 类 号：TU311.3[建筑科学—结构工程]