台车水平刚度对开合屋盖结构动力性能的影响

英文篇名：Effects of Trolley Horizontal Stiffness on Structure Dynamic Performance of Retractable Roof
中文刊名：东北大学学报(自然科学版)
英文刊名：Journal of Northeastern University(Natural Science)
作者：牟在根 ; 栾海强 ; 刘国跃 ; 范重
英文作者：MU Zai-gen ; LUAN Hai-qiang ; LIU Guo-yue ; FAN Zhong ; School of Civil & Environmental Engineering ; University of Science and Technology Beijing ; China Architecture Design&Research Group
中文关键词：开合屋盖 ; 台车 ; 水平刚度 ; 自振特性 ; 地震响应
英文关键词：retractable roof ; trolley ; horizontal stiffness ; natural vibration characteristics ; seismic responses
出版日期：2013-10-15
机构：北京科技大学土木与环境工程学院;中国建筑设计研究院;
年：2013
期：10
出版单位：东北大学学报(自然科学版)

摘要

以国家网球场"钻石球场"开合屋盖结构为分析对象,采用通用有限元软件SAP2000对比研究了台车水平刚度对开合屋盖结构自振特性及地震响应的影响.研究结果表明:随着台车水平刚度的不断减小,结构自振周期不断增大,开合屋盖结构轨道梁的横向及竖向位移也相应减小.此外,台车水平刚度的变化对结构固定屋盖及活动屋盖杆件的轴力均会造成影响,且对固定屋盖杆件轴向力影响较为明显.因此,在对此类结构进行设计及施工过程中应该充分考虑台车水平刚度的影响.
Taking the retractable roof structure of national tennis court "diamond stadium" as the analysis object,the effects of trolley horizontal stiffness on structure natural vibration characteristics and seismic responses of the retractable roof were comparatively studied using the finite element software SAP2000.The results showed that,with trolley horizontal stiffness decreasing,the structure natural period of vibration increased,and the horizontal and vertical displacements of the retractable roof track beam decreased,correspondingly.In addition,the trolley horizontal stiffness can influence the axial force of fixed roof and retractable roof bars,and it is more obvious on the fixed roof bars axial force.Therefore,the influence of the trolley horizontal stiffness should be considered in design and application of this kind of structure.

引文

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