高层高强钢组合偏心支撑框架抗震性能简化分析  

A Simplified Analysis Model for Evaluating the Seismic Performance of High-Rise High-Strength Steel Composite Eccentrically Braced Frames

作　　者：洪敏[1] 秦瑞 王凤[3] 高永国[1] 高中南 李少华[1,4] HONG Min;QIN Rui;WANG Feng;GAO Yongguo;GAO Zhongnan;LI Shaohua(Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Steel Structure Engineering Company of China Construction Eighth Engineering Division Co., Ltd. , Shanghai 200122, China;Lanzhou University of Technology, Lanzhou 730050, Gansu, China;Open Laboratory of Loess Earthquake Engineering, China Earthquake Administration, Lanzhou 730000, Gansu, China)

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]中国建筑第八工程局有限公司钢结构工程公司,上海200122 [3]兰州理工大学,甘肃兰州730050 [4]中国地震局黄土地震工程开放实验室,甘肃兰州730000

出　　处：《地震工程学报》2020年第2期332-336,共5页China Earthquake Engineering Journal

基　　金：国家自然科学基金(51178382);中国地震局地震预测研究所基本科研专项(2017IESLZ09)。

摘　　要：高强钢组合偏心支撑钢框架是一种新型的抗震结构体系,为分析其抗震性能,利用ABAQUS有限元软件建立了简化分析模型。在验证该简化模型合理有效的基础上,建立了某十层算例的整体模型,施加竖向荷载的同时施加水平倒三角形循环荷载作用,进而分析了该算例的滞回性能。研究表明:本文提出的简化分析模型不仅可以较准确的模拟该结构体系的延性和抗侧刚度,还可以有效预测结构的变形分布和非线性性能。A high-strength steel composite eccentrically braced frame(HSS-EBF)is a new type of seismic structure system.A simplified HSS-EBF analysis model was established using the ABAQUS software to analyze its seismic performance.The overall model of a 10-story HSS-EBF example was developed after the validity of the simplified analysis model was verified.Subsequently,the hysteretic behavior of this example was analyzed by simultaneously applying vertical load and horizontal inverted triangular cyclic load.The results denoted that the simplified HSS-EBF analysis model can accurately simulate the ductility and lateral stiffness as well as dffectively predict the deformation and nonlinear performance of the HSS-EBF structure.

关 键 词：偏心支撑钢框架 高强钢 简化模型 抗震性能 

分 类 号：TU391[建筑科学—结构工程]