泉州电信综合楼结构弹塑性分析

平面与竖向布置不均匀的泉州电信综合楼属特别不规则建筑，有必要进行罕遇地震作用下结构薄弱层（或薄弱部位）的判断及结构弹塑性变形验算。文中介绍了结构弹塑性分析法并采用空间弹塑性推覆模型，对泉州电信综合大楼结构进行静力非线性分析，计算结果表明，结构在小震作用下变形满足规范的应小于１／８００的规定，但对个别连梁和角柱进入塑性屈服阶段等薄弱部分的设计应加强；结构在大震作用下变形满足规范的应小于１／５０的规定

Structural Analysis of Telecom Building in Quanzhou with Emphasis on Its Elastoplasticity

Telecom composite building in Quanzhou belongs to a quite irreqular building which arranges unevenly both in plane and in elevation. It is necessary to judge the structural weak storey or weak position under rare earthquake. The authors make a brief account of the method of elastoplastic analysis and adopt a PUSHOVER mould of spatial elastoplasticity by which a static nonlinear analysis is conducted on the structure of Quanzhou telecom composite building. As shown by results of computation, under weak earthquake, structural deformation satisfying the criteria should be smaller than 1/800 of the regulation, with specific connecting beams and corner columns coming into plastic yield stage which as weak parts need to be strengthened in structural design; under violent earthquake, structrual deformation satisfying the criteria should be smaller than 1/50 of the regulation.