多层框架-支撑结构在水平地震作用下的支撑合理数量  

Optimal Numbers of Braces in Braced-frame Structures under Earthquake Action

作　　者：程小燕[1] 薛彦涛[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《工程抗震与加固改造》2012年第6期116-119,共4页Earthquake Resistant Engineering and Retrofitting

摘　　要：随着耗能支撑的发展,支撑越来越多地应用于新建结构和旧有建筑的加固改造中。本文依据框架-支撑结构的协同工作原理,按照我国现行抗震设计规范对混凝土框架-支撑结构侧移变形的限值,推导出了满足层间位移角限值的支撑数量的计算公式,从而为框架-支撑结构的初步设计以及原有框架结构的改造加固提供参考。With the development of the energy dissipation brace,this technology is more and more used in the new structures and the old structures＇ reinforcement and reconstruction design.In this paper,a series of formulas for determining optimal numbers of braces under earthquake action are presented,based on the cooperation work principle of brace and frame in braced-frame structure and the code for seismic design of buildings.This method is accurate and convenient enough for use when the braced-frame structure are designed during the preliminary stage of design and the renovated and strengthened of existing frame structure.

关 键 词：框架-支撑结构 地震作用 层间位移角 自振周期 支撑的合理数量 

分 类 号：TU375.4[建筑科学—结构工程]