伞形膜结构风压和风振模拟与分析

上海交通大学学报（自然版） ›› 2014, Vol. 48 ›› Issue (11): 1562-1567.

伞形膜结构风压和风振模拟与分析

王子通，马宁，周岱，孙颖昊

（上海交通大学船舶海洋与建筑工程学院，上海 200240）

收稿日期:2013-12-24
基金资助:
国家自然科学基金项目（11172174，51278297），海洋工程国家重点实验室自主研究课题（GKZD010063），上海市优秀学术带头人计划（13XD1402100）和高等学校博士学科点专项科研基金项目（20130073110096）资助

Numerical Simulation of Wind Pressure and Wind-Induced Dynamic Responses of an UmbrellaShaped Membrane Structure

WANG Zitong,MA Ning,ZHOU Dai,SUN Yinghao

(School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2013-12-24

摘要/Abstract

摘要：

摘要：针对工程常见的八角伞形膜结构，基于ADINA软件开展结构表面风压和结构风振响应的数值模拟，分析结构风致位移响应、速度响应、加速度响应、等效应力等关键风效应，研究膜结构的矢跨比、风向角、膜初始预张力、膜帽处开敞与封闭情形等关键参数对表面风压和结构风振的影响规律，揭示了此类膜结构风振规律和结构风压系数.研究成果可为此类结构的抗风设计计算提供参考.

关键词: 伞形膜结构, 风致响应, 风压系数

Abstract:

Abstract： By using commercial software ADINA, the numerical simulation of the wind pressures and wind-induced dynamic responses of an umbrellashaped tension membrane structure were performed. Some key effects including wind-induced dynamical displacements, velocities, accelerations and equivalent stresses of the membrane structure were systematically investigated. Moreover, the effect of several important parameters on wind pressures and structural windinduced dynamic responses was summarized, such as structural rise-span ratio, incoming wind direction, membrane initial pretension and opening/closure forms in the membrane hat. Furthermore, the structural windinduced responses and wind pressure coefficients were obtained. The present results can provide reference for the wind resistant design of similar tension membrane structures.

Key words: umbrella-like membrane structure, wind-induced dynamic response, wind pressure coefficient

中图分类号:

王子通，马宁，周岱，孙颖昊. 伞形膜结构风压和风振模拟与分析[J]. 上海交通大学学报（自然版）, 2014, 48(11): 1562-1567.

WANG Zitong,MA Ning,ZHOU Dai,SUN Yinghao. Numerical Simulation of Wind Pressure and Wind-Induced Dynamic Responses of an UmbrellaShaped Membrane Structure[J]. Journal of Shanghai Jiaotong University, 2014, 48(11): 1562-1567.

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