边缘构件刚度对索网结构风振响应的影响分析  

INFLUENCE ANALYSES OF BOUNDARY STIFFNESS ON WIND OSCILLATIDN RESPONSE OF CABLE NETWORKS

作　　者：彭大文[1] 林文明[1] 

机构地区：[1]福州大学土建系

出　　处：《工程力学》1998年第3期118-125,共8页Engineering Mechanics

基　　金：福建省自然科学基金

摘　　要：本文根据索网结构中索系和边缘支承结构共同工作且相互影响的特点，运用随机振动理论，考虑风的三维相干性，讨论了脉动风作用下，边缘构件刚度对索网结构的自振频率和风振响应的影响规律。分析表明，临界刚度比是索网结构动力响应计算的一个关键参数。In this paper, according to the characteristic of cooperation and interaction between the cables and boundary supporting structures,applying the random vibration theory and taking the three-dimensional interference of wind into account, the influence law of boundary constructional element stiffness on the wind oscillation response of cable networks have been analyzed.The analysis indicates that the critical stiffness ratio is a key parameter in calculating the dynamic response of cable network structures.

关 键 词：索网络构 边缘构件刚度 风振响应 临界刚度比 

分 类 号：TU359.01[建筑科学—结构工程] TU311.3