冷弯型钢结构住宅的抗震设计方法研究  

Seismic Design Method of Cold-Formed Steel Framing Residential Buildings

作　　者：陈能平 

机构地区：[1]西安长庆地产集团有限公司,西安710018

出　　处：《价值工程》2011年第33期78-79,共2页Value Engineering

摘　　要：根据冷弯型钢结构房屋的受力特征,将其性能划分为正常使用、可修和不倒塌三个水平,结构的目标位移根据其性能水平确定,并采用层间位移角予以量化;根据弹塑性动力时程分析结果,假定冷弯型钢结构房屋的位移模式为倒三角形式。借鉴线弹性单自由度体系的位移反应谱计算方法,提出冷弯型钢结构房屋的弹性和弹塑性位移反应谱的求解方法。Displacement based seismic design method of cold-formed steel framing residential buildings is studied in this paper. According to the mechanical characteristics of cold-formed steel framing residential buildings, classify its performance into three different levels： serviceability, immediate occupancy and collapse prevention. The target displacement of the structure is represented by story drift ratio and determined by its performance level. Based on the nonlinear time history analysis result, assume the displacement distribution model of cold-formed steel framing residential building is inverted triangular distribution. Referring to the calculating method of displacement response spectrum in linear elastic SDOF system, the method for solving, the elastic and plastic-elastic disnlaeement resnonse snectrums of r^nld-formed st~.el framing, residential h11i｜r＇]inL：~ is nrnnagt^rl

关 键 词：冷弯型钢结构 基于位移的抗震设计 侧移模式 

分 类 号：TU2[建筑科学—建筑设计及理论]