Journal of South China University of Technology(Natural Science Edition) ›› 2019, Vol. 47 ›› Issue (8): 9-15.doi: 10.12141/j.issn.1000-565X.180650

• Architecture & Civil Engineering • Previous Articles     Next Articles

Mechanical Behaviors of Large-tonnage Complex Steel Spherical Hinged Support: Rotation Behavior Subjected to Axial Compressive Load

SHI Kairong1,2 PAN Wenzhi1 JIANG Zhengrong1,2 Lü Junfeng1 LUO Bin3   

  1. 1． School of Civil Engineering and Transportation，South China University of Technology，Guangzhou 510640，Guangdong，China; 2． State Key Laboratory of Subtropical Building Science，South China University of Technology，Guangzhou 510640， Guangdong，China; 3． School of Civil Engineering，Southeast University，Nanjing 210096，Jiangsu，China
  • Received:2019-01-02 Revised:2019-03-30 Online:2019-08-25 Published:2019-08-01
  • Contact: 姜正荣(1971-)，男，博士，副教授，主要从事高层钢结构、大跨度空间结构研究． E-mail:zhrjiang@scut.edu.cn
  • About author:石开荣(1978-)，男，博士，副教授，主要从事预应力钢结构、大跨度空间结构研究． E-mail:krshi@ scut． edu． cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(11673039)

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Abstract: The steel spherical hinged support has the advantages of high loading capacity，reliable transfer of loads， flexible rotation with universal hinge，and allowance of large displacement and rotation angle． However，supports are in complex forced states subjected to various load combinations，which leads to the significant influence on inte- gral structural safety． Taking the large-tonnage complex steel spherical hinged support of T2 of Guangzhou Baiyun International Airport for example，the full-scale experiments and finite element simulation analysis were carried out and the rotation behavior of the support subjected to axial compressive load was studied． The rotation stiffness model of support subjected to axial compressive load was proposed for the refinement analysis of integral structure． The results show that the results of experiments and finite element simulations are similar，and the development tendency of stress and deformation of them is coincident． In addition，the actual rotational moment is less than that prescrip- tive by code and the rotation behavior is satisfied for the requirements of code and design．

Key words: spherical hinged support, finite element simulation, rotation behavior test, steel structure

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