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首页> 外文期刊>International journal of steel structures >The stability and stressed skin effect analyses of an 80 m diameter single-layer latticed dome with bolt-ball joints
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The stability and stressed skin effect analyses of an 80 m diameter single-layer latticed dome with bolt-ball joints

机译：直径80 m的带螺栓-球窝接头的单层格子球顶的稳定性和应力趋肤效应分析

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摘要

Recent researches have demonstrated that bolt-ball joints have a certain amount of flexural stiffness, so they should be classified as semi-rigid joints and it is possible to apply them on single-layer latticed domes. In order to study the stability and stressed skin effect of the latticed domes with bolt-ball joints, a series of nonlinear full-produce analyses were conducted on the basis of the design of an 80 m diameter single-layer latticed dome with bolt-ball joints, which is the main structure of the Shenbei New District citizen fitness center in Shenyang, China. Above all, the moment-rotation relations for bolt-ball joints, which were established based on numerical results, were introduced into the latticed dome numerical model. Then, the nonlinear stability analyses for the latticed dome in different construction stages were carried out by the above-mentioned numerical model under vertical loads and horizontal wind loads. The mechanical behaviors discussed in this investigation including the stability and the ultimate bearing capacity of the latticed dome in different construction stages, and the influence of the stressed skin effect on the stability of the latticed dome with decorated plates. The result shows that: after being properly designed, the latticed dome with bolt-ball joints can exhibit a good mechanical performance, and this successful application of bolt-ball joints on the Shenbei New District citizen fitness center can set an example project for the design of single-layer latticed domes with semi-rigid joints; under vertical loads, it is more dangerous for the 75% complete latticed dome, while the dangerous construction stage for horizontal wind loads is the 50% completed latticed dome; the stressed skin effect can increase the stability of latticed domes.
机译：最近的研究表明，螺栓-球形接头具有一定的抗弯刚度，因此应将其分类为半刚性接头，并且可以将其应用于单层网格穹顶上。为了研究带有螺栓球接头的格子穹顶的稳定性和受力集肤效应，在设计直径为80 m的带有螺栓球的单层格子圆顶的基础上，进行了一系列非线性全量分析。关节，这是中国沉阳市沉北新区市民健身中心的主要结构。首先，将基于数值结果建立的螺栓-球形接头的力矩-旋转关系引入到网格圆顶模型中。然后，通过上述数值模型在竖向荷载和水平风荷载下，对不同施工阶段的格子穹顶进行了非线性稳定性分析。在这项研究中讨论的力学行为包括在不同施工阶段的格子穹顶的稳定性和极限承载力，以及受应力趋肤效应对带有装饰板的格子穹顶的稳定性的影响。结果表明：经过合理设计，带螺栓球节的拱形圆顶具有良好的力学性能，螺栓球节在申北新区市民健身中心的成功应用可以为设计树立典范。具有半刚性接头的单层格子穹顶；在垂直载荷下，对于75％完整的网格圆顶来说更危险，而对于水平风荷载而言，危险的施工阶段是50％完整的网格圆顶。压力过大的皮肤效果可以增加格子穹顶的稳定性。

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  • 来源
    《International journal of steel structures》 |2016年第2期|279-288|共10页
  • 作者

    Cao Zhenggang; Du Peng; Chen Zheming; Wan Zongshuai;

  • 作者单位

    Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China|Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China;

    Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China|Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China;

    Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China|Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China;

    Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China|Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    single-layer latticed dome; bolt-ball joints; stability; stressed skin effect; nonlinear full-procedure analyses;

    机译：单层格子球顶;螺栓球节;稳定性;受力蒙皮效应;非线性全过程分析;

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