基于Pushover的复杂空间结构弹塑性分析  

ELASTO-PLASTIC ANALYSIS OF COMPLEX SPATIAL STRUCTURE BASED ON PUSHVER

作　　者：曹珑芳 CAO Longfang(China Railway Construction Engineering Group Shandong,Jinan 250000,China)

机构地区：[1]中铁建工集团山东有限公司,济南250000

出　　处：《低温建筑技术》2021年第4期82-86,共5页Low Temperature Architecture Technology

摘　　要：对复杂结构而言,静力弹塑性分析的加载模式是准确反映结构在罕遇地震下的性能的关键。文中利用MIDAS/GEN对某复杂长悬挑空间结构进行了4种工况下的静力弹塑性分析,对结构在罕遇地震下的性能进行了分析研究。同时,将结构的静力弹塑性分析结果与动力弹塑性分析结果进行对比研究,探讨了静力弹塑性分析合适的加载模式,对复杂空间结构进行静力弹塑性分析时侧向加载模式的选取提出了建议。The lateral force patterns of the method is the key to accurately reflect the seismic behavior of the structure under severe earthquake,especially for the complex spatial structure.The study of seismic behavior under severe earthquake of one complex long-cantilevered structure was performed by the author using static elasto-plastic analysis method based on MIDAS/GEN.The analysis included four loading cases.At the same time,dynamic elasto-plastic analysis of the structure was also applied to make a comparative study of the results of the two methods.In the comparative study,lateral force patterns of pushover analysis was discussed and some suggestions were made for the future seismic behavior study of similar structures.

关 键 词：复杂长悬挑结构 静力弹塑性分析 侧向力加载模式 

分 类 号：TU311.4[建筑科学—结构工程]