巨型框架结构竖向地震作用抗震性能研究  

Study of Aseismatic Performance of Mega-frame Structure Systems Subjected to Vertical Earthquake Action

作　　者：张永康[1] 刘洪兵[1] 

机构地区：[1]西北工业大学土木建筑工程系,陕西西安710072

出　　处：《工程抗震与加固改造》2005年第3期17-19,共3页Earthquake Resistant Engineering and Retrofitting

摘　　要：本文对在竖向地震作用下的巨型框架结构采用考虑节点转动的串并联多质点系模型;并对在该模型下建立的动力矩阵用动力凝聚法进行简化,推导了相应的振动微分方程。通过具体算例分析得出了巨型框架结构在竖向地震作用下的一些震害特点。This paper presents the series-parallel-connection model with considering joint rotation.Through dynamic force condensing,the dynamic matrix of mega-frame is simplified,and corresponding oscillatory differential equation is obtained.The results of the computational example show that some seismic damage characteristics of mega-frame structures are subjected to vertical earthquake action.

关 键 词：竖向地震作用 巨型框架结构 性能研究 串并联多质点系 抗震 振动微分方程 动力矩阵 震害特点 算例分析 凝聚法 模型 节点 

分 类 号：TU973.2[建筑科学—结构工程]