高层混凝土框架Y型支撑结构支撑布置非线性分析  

Nonlinear Analysis on Brace Arrangement of High-rise Reinforced Concrete Frames with Y-eccentrically Braces

作　　者：赵宝建[1] 于安林[1] 钱善青[2] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011 [2]苏州科技学院设计研究院有限公司,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2011年第2期19-23,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：国家自然科学基金项目(51078248)

摘　　要：使用PPM2008软件设计了一榀12层5跨的纯混凝土框架,并在此基础上设计了4榀不同支撑布置的Y型偏心支撑框架试件。采用SAP2000.V14建立非线性有限元模型,分别对这5种试件进行地震反应分析。通过数据对比分析表明,楼层柱承担的总剪力随支撑布置的跨数增加有所下降;每层耗能段承担的剪力占楼层总剪力的比重在一个相对固定的范围内变化,且这个比重随支撑布置跨数的增加而上升。In this paper,a RC frame with twelve stories and five spans was designed by PKPM2008,on which the Y-eccentricity braced frames（EBF） specimens with four frames of different brace arrangements were designed.SAP2000 was used to set up the nonlinear finite element model and analyze the earthquake response of the five specimens.The comparison and analysis of the data show that the shear force undertaken by the column of each floor declined with the span increase of the brace arrangement,and the ratio of the shear force undertaken by the link beam of each floor only changed in a relative regular scope,this ratio became higher and higher with the increase of the span number of the brace arrangement.

关 键 词：Y型偏心支撑 耗能梁段 支撑布置 弹塑性时程分析 

分 类 号：TU398[建筑科学—结构工程]