索穹顶结构风振响应时程分析

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (17) : 68-73.

论文

索穹顶结构风振响应时程分析

魏德敏徐牧李頔

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Time-History Analyses of Wind-Induced Vibration Response of Cable Dome Structures

WEI De-min XU Mu Li Di

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文章历史 +

摘要

本文采用改进的AR法和相应自编程序，模拟出索穹顶屋盖结构各节点的脉动风速时程，将流固耦合作用引入结构的动力平衡方程，进行了结构风振响应时程分析。通过结构典型节点处的位移响应和关键构件的内力响应计算结果的分析，给出结构的位移风振系数和内力风振系数，并与结构风振响应频域分析结果加以对比，得到一些有意义的结果和结论。

Abstract

In this paper, by means of improved AR method, the simulation program for the velocity-time history of the pulsating wind is composed and used to a cable dome structure. The effect of fluid-structure interaction is considered in the dynamic equilibrium equation, the time-history response of the wind vibration for cable dome structure is obtained. Through the analyses for computational results of the nodal displacement response and the cable force response, some wind-induced vibration coefficients in the time-domain method are given and compared to that in the frequency-domain method. Then some useful results and conclusions are given.

导出引用

魏德敏徐牧李頔. 索穹顶结构风振响应时程分析[J]. 振动与冲击, 2013, 32(17): 68-73

WEI De-min XU Mu Li Di. Time-History Analyses of Wind-Induced Vibration Response of Cable Dome Structures[J]. Journal of Vibration and Shock, 2013, 32(17): 68-73