悬索屋盖结构阻尼特性及对地震反应影响分析  

THE DAMPING BEHAVIOR AND ITS INFLUENCE ON SEISMIC RESPONSE OF CABLE ROOF STRCTURES

作　　者：曹资[1] 薛素铎[1] 刘景园[1] 张善余[1] 

机构地区：[1]北京工业大学

出　　处：《空间结构》1994年第1期17-24,共8页Spatial Structures

基　　金：北京市自然科学基金

摘　　要：本文主要对柔性体系悬索结构的阻尼特性进行了理论与试验研究，进一步明确得出悬索结构阻尼比远远小于传统的刚性结构概念，并给出其幅度数值。同时系统分析和给出悬索结构在地震作用下动内力、动位移随阻尼比减小的变化规律，并由此对该类结构阻尼特性得出几点重要结论及对其动力分析提出几，点有益的建议，以便于设计计算时采用。Abstract This paper mainly deals with the theoretical and experimental study on damping behavior of flexible cable roof systems.A concept that the damping ratios of cable structures are much lower than those of conventional rigid structures is obtained.The value range of damping ratios of cable roof structures is given,Furthermore,the variation of the seismic response for cable forces and structural displacements with the decrease in damping ratio is investigated.Thus,some important conclusions about the damping behavior of cable roof structures are drawn,and several useful suggestions for seismic design of cable structures are made.

关 键 词：悬索结构 屋盖结构 地震反应 阻尼比 柔性体系 地震作用 动力分析 动内力 影响分析 位移 

分 类 号：TU352[建筑科学—结构工程] TU758