有速度脉冲近场地震下人字形中心支撑钢框架性态设计方法  

Performance-based Seismic Design Method of Concentrically Braced Steel Frame under Near-field Earthquake with Velocity Pulse

作　　者：朱恩[1] 顾强[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2011年第4期36-43,共8页Journal of Suzhou University of Science and Technology （Engineering and Technology）

摘　　要：结构在近场地震作用下的破坏往往与强速度脉冲所携带的瞬时输入能量相关,根据5条近场地震波构造了屈服点谱(YPS)。基于结构屈服位移的稳定性,采用能力方法设计一榀人字形中心支撑钢框架结构。非线性静力分析和动力时程分析结果验证了用YPS法对中心支撑钢框架进行性态设计的可行性。The damage of the building under the near-field earthquake was related to the instantaneous input energy,a total of 5 near-field ground motion records were selected to construct the yield point spectra（YPS）in the paper.Based on the stability of yield displacement,this paper used the capacity design method to design a plane Chevron concentrically braced steel frames.The result obtained from the nonlinear static analyses and nonlinear dynamic analyses verified the feasibility of the YPS method applied to design the steel braced frames.

关 键 词：屈服点谱 人字形中心支撑钢框架 近场地震 速度脉冲 

分 类 号：TU391[建筑科学—结构工程]