通过刚性模型试验评价中庭采光顶风荷载及其响应的方法
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摘要
当中庭采光顶的建筑设计完成以后,在结构形式上可能仍然存在多种方案,这就需要对每个设计方案的动力性能和风致响应进行评价,而通过气动弹性试验来测定每个方案是不现实的。因此,本文提出了采用刚性测压试验原始数据和有限元时程分析相结合的方法,通过一次刚性测压试验和多次有限元分析来解决,这显然更经济合理。本文将以上海世茂中庭采光顶项目为例,详细地介绍上述风致响应计算方法及其有关结论。
After the architecture design of a project has been finished,the style and shape would be confirmed,but the configuration would still have more than one alternative to be chosen.So it is necessary to evaluate the dynamic performance and wind induced response of each alternative;however,it is unrealistic to measure the dynamic capability of each structural alternative by wind tunnel test of the aeroelastic modeling.Therefore,a more feasible method is induced,which uses the time series of wind pressure got by one time wind tunnel test of aerorigid model in conjunction with the finite element method to calculate the wind-induced response for several times.This article also introduces the procedure and main results of wind tunnel test and successive analysis for Shi Mao project in Shanghai.
引文
[1]GB 50009-2002建筑结构荷载规范[S].北京:中国建筑工业出版社,2002.
    [2]Edward L W.结构静力与动力分析-强调地震工程学的物理方法[M].北京金土木软件有限公司、中国建筑标准设计研究院译.北京:中国建筑工业出版社,2006.
    [3]Davenport A G,Gust loading factors[J].Journal of the Structural Division,ASCE,1961,93(3):11-34.
    [4]Kasperski M.Aerodynamics of low-rise building and codification[J].Journal of Wind Engineering and Industrial Aerodynamics,1993,50:253-262.
    [5]Kasperski M.Extreme wind load distributions for linear and nonlinear design[J].Engineering Structure,1992,14:27-34.
    [6]Solari.A Generalized definition of gust factor[J].Journal of Wind Engineering and Industrial Aerodynamics,1990,36:539-548.
    [7]Kasperski M&Niemann J.The L.R.C.method-a general method of estimation unfavorable wind load distributions for linear and non-linearstructures[J].Journal of Wind Engineering and Industrial Aerodynamics,1992,41-44:1753-1763.
    [8]Holmes J D.Effective static load distributions in wind engineering[J].J.Wind Eng.Ind.Aerodyn,2002,90:91-109.
    [9]江勇.大跨柔性点支式幕墙及采光顶风致响应和等效风荷载研究[D].上海:同济大学,2006.
    [10]世茂北外滩中庭风荷载试验研究[R].同济大学土木工程防灾国家重点试验室试验报告,2005.
    [11]杨志勇,李创第,李桂青,等.随机阻尼对结构抗风抗震动力响应的影响[J].地震工程与工程振动,2000,20(2):24-30.
    [12]黄宗明,白绍良,赖明.结构地震反应时程分析中的阻尼问题评述[J].地震工程与工程振动,1996,16(2):95-105.
    [13]有限元软件Ansys8.1版本帮助文件。

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