...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of steel structures >Experimental Study on the Motion Process of Radial Retractable Roof Structures
【24h】

Experimental Study on the Motion Process of Radial Retractable Roof Structures

机译：径向伸缩式屋盖结构运动过程的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In recent years, the use of retractable roofs is increasing to meet the demand of holding big-scale events. This article introduces a class of radial retractable roofs based on the foldable bar structure (FBS) mechanism. A radial retractable roof structure whose moveable section consisted of 6 segments and 6 rigid linkages was designed with appropriate parameters. An experimental study of a radial retractable roof was carried out. A scale model with a 3 metre diameter was constructed to study the roof deflection and vibration during the deployment process under four different load cases. Furthermore, based on the multi-flexible body dynamics theory, an ADAMS-ANSYS co-simulation was applied to simulate the motion process of the radial retractable roof structure. The experimental results were consistent with the numerical simulations. This indicates that the dynamic and fluctuation phenomena of structural behaviour are universal. The structural vibration was increased with the increase of external loads, and the vibration amplitude increased significantly when the roof was starting and braking. With the closing of the movable roof, the deflection of the fixed roof increased significantly. In the motion process, the bending moment of the fixed roof gradually increases, while that of the moving roof varies little. Vertical vibration is significant in the motion process by reason of the complex wheel-rail contact.
机译：近年来，为了满足举办大型活动的需求，越来越多地使用可伸缩屋顶。本文介绍了一种基于可折叠钢筋结构（FBS）的径向可伸缩屋顶。设计了具有适当参数的径向可伸缩屋顶结构，其活动部分包括6个部分和6个刚性连杆。进行了径向可伸缩屋顶的实验研究。构造了一个直径为3米的比例模型，以研究在四种不同载荷情况下展开过程中的屋顶变形和振动。此外，基于多柔体动力学理论，采用ADAMS-ANSYS联合仿真方法来模拟径向伸缩式屋盖结构的运动过程。实验结果与数值模拟结果吻合。这表明结构行为的动态和波动现象是普遍的。随着外部荷载的增加，结构振动也随之增加，而在车顶起步和制动时，振动幅度明显增加。随着活动屋顶的关闭，固定屋顶的挠度大大增加。在运动过程中，固定顶板的弯矩逐渐增大，而移动顶板的弯矩变化很小。由于复杂的轮轨接触，垂直振动在运动过程中非常重要。

著录项

  • 来源
    《International journal of steel structures》 |2016年第4期|997-1007|共11页
  • 作者

    Lu JinYu; Liao Jie; Shu GanPing; Zhang Tao;

  • 作者单位

    Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China|Southeast Univ, Sch Civil Engn, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Sch Civil Engn, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China|Southeast Univ, Sch Civil Engn, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Sch Civil Engn, Nanjing 210096, Jiangsu, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    radial retractable roof structure; whole motion process; experimental study; deflection; bending moment;

    机译：径向伸缩屋顶结构;全运动过程;试验研究;挠度;弯矩;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号