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首页> 外文期刊>Structural Design of Tall Buildings >Shaking table test and numerical analysis of an asymmetrical twin-tower super high-rise building connected with long-span steel truss
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Shaking table test and numerical analysis of an asymmetrical twin-tower super high-rise building connected with long-span steel truss

机译：长跨度钢桁架连接的不对称双塔超高层高层建筑振动台试验及数值分析

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摘要

The asymmetrical high-rise building investigated in this paper is composed of a 299.1-m-high tower and a 235.2-m-high tower, which are diagonally and rigidly connected by two steel truss systems with the maximum span of 65.43 m. Given the great structural irregularities and complexities, the structural seismic performance is necessary to be investigated. A shaking table test of a 1/45 scaled model is conducted in this study, by which the structural damage pattern and dynamic responses are analyzed. The results show that the connecting trusses and rigid connection joints behave well during strong seismic excitations. The damages concentrate on the connecting floors, and the whole structural damage is slight. Most of the lateral resistance components remain elastic. The structure presents high seismic resistance against strong ground motions. Subsequently, a three-dimensional finite element model of prototype structure is established and validated by the experimental results. The analyses indicate that performance of the connecting trusses is capable of coordinating translational and torsional deformation of the two towers and making them resist lateral seismic force together even subjected to maximum considered earthquakes. And this performance is still reliable although the high torsional modes are triggered.
机译：本文研究的不对称高层建筑由299.1米高塔和235.2米高塔，由两个钢桁架系统对角刚性连接，最大跨度为65.43米。鉴于巨大的结构性违规性和复杂性，需要调查结构地震性能。在本研究中进行了1/45缩放模型的振动表测试，通过该研究进行了分析结构损伤模式和动态响应。结果表明，在强烈的地震激发过程中，连接桁架和刚性连接接头的表现良好。损坏集中在连接地板上，整个结构损坏都很轻微。大多数横向电阻部件保持弹性。该结构呈现出强烈地震抗性抗强地面运动。随后，通过实验结果建立和验证原型结构的三维有限元模型。分析表明，连接桁架的性能能够协调两座塔的平移和扭转变形，使它们抵抗横向地震力甚至被认为是被认为的地震的最大值。尽管触发高扭转模式，但这种性能仍​​然可靠。

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  • 来源
    《Structural Design of Tall Buildings》 |2019年第13期|e1630.1-e1630.27|共27页
  • 作者

    Guo Wei; Zhai Zhipeng; Wang Hanfeng; Liu Qiongxiang; Xu Kai; Yu Zhiwu;

  • 作者单位

    Cent S Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China|Natl Engn Lab High Speed Railway Construct Changsha Hunan Peoples R China|Engn Technol Res Ctr Prefabricated Construct Indu Changsha Hunan Peoples R China;

    Cent S Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China|Natl Engn Lab High Speed Railway Construct Changsha Hunan Peoples R China|Engn Technol Res Ctr Prefabricated Construct Indu Changsha Hunan Peoples R China;

    Cent S Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China|Natl Engn Lab High Speed Railway Construct Changsha Hunan Peoples R China;

    Shenzhen Gen Inst Architectural Design & Res Co L Shenzhen Peoples R China;

    Shenzhen Gen Inst Architectural Design & Res Co L Shenzhen Peoples R China;

    Cent S Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China|Natl Engn Lab High Speed Railway Construct Changsha Hunan Peoples R China|Engn Technol Res Ctr Prefabricated Construct Indu Changsha Hunan Peoples R China;

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

    asymmetrical connected structure; long-span steel truss; numerical analysis; seismic performance; shaking table test; supertall towers;

    机译：非对称连接结构;长跨度钢桁架;数值分析;地震性能;摇架测试;超级塔;

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