次梁对钢筋混凝土框架结构连续性倒塌动力效应的影响研究  

The Influence of Secondary Beam to Dynamic Effect of Reinforced Concrete Frame Structures during Progressive Collapse

作　　者：曾明会[1] 袁波[1] 李霞昭[1] 

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550003

出　　处：《贵州大学学报（自然科学版）》2014年第2期95-99,共5页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金项目资助(51168010)

摘　　要：为了分析次梁对钢筋混凝土框架结构的连续倒塌动力效应的影响,本文建立了一个五层框架结构,次梁按井字型布置,对考虑次梁和不考虑次梁两种情况进行连续倒塌动力效应分析,分析了次梁对不同失效时间、层数下的最大位移的影响。分析结果表明:随着失效时间、层数的变化,次梁对最大位移有不同程度的影响。In order to analyze the influence of secondary beam to dynamic effect of reinforced concrete frame structures during progressive collapse,a five- layers frame structure where the secondary beams were arranged by well word was built and was made dynamic effect analysis of two conditions which consider secondary beam or not. This paper analyzed the influent of secondary beam to maximum displacement when failure time and the number of layer changed. The analytical results shows that the secondary beams have different degrees of influence on the maximum displacement with the change of failure time and the number of layer.

关 键 词：次梁 SAP2000 动力效应 最大位移 影响程度 

分 类 号：TU375[建筑科学—结构工程]