Experimental Study on the Mechanical Properties and Health Monitoring Methods of Joints in AAPF

被引:0
作者
Xing, Zhanqing [1 ]
Wang, Gang [2 ,3 ]
Pang, Jing [1 ]
机构
[1] Inner Mongolia Univ Technol, Coll Sci, Hohhot 010051, Peoples R China
[2] Southeast Univ, Sch Civil Engn, Nanjing 211189, Peoples R China
[3] Shanghai Baoye Grp Corp Ltd, Shanghai 201900, Peoples R China
关键词
AAPF; beam-beam joints; experimental study; numerical analysis; safety monitoring; LAYER RETICULATED SHELLS; ALUMINUM; STABILITY; DAMAGE;
D O I
10.3390/buildings14071886
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Aluminum alloy frame is a novel structure system developed in recent years. In this article, the load-bearing performance of the beam-beam joint of the aluminum alloy frame is studied through numerical analysis and experiment and a safety monitoring method is developed. The impacts of the arch angle and bolt diameter on the beam-beam joint mechanical characteristics are explored through experiments under vertical load. When the diameter of the bolt was increased, the load-bearing performance of such joint displayed a pattern of first increasing and then decreasing. As the arch angle increased, the load-bearing performance on the joint gradually improved. Based on the experiments, numerical analysis models varying in arch angle were established, and the impacts of arch angles on the stiffness during the yield stage, ultimate load, and elastic stiffness of the aluminum alloy portal frame (AAPF) beam-beam joints were further explored through numerical simulation of the structure under vertical and horizontal loads. When the arching angle was increased, the elastic stiffness and yield stiffness of the beam-beam joint under vertical load showed a pattern of first increasing and then decreasing. When the arching angle was increased, the elastic stiffness and yield stiffness of the beam-beam joint under horizontal load significantly decreased. Based on the mechanical properties, a safety monitoring method for AAPF beam-beam joints based on displacement monitoring and frequency monitoring is proposed.
引用
收藏
页数:17
相关论文
共 30 条
  • [1] [Anonymous], 2007, GB/T 50429-2007
  • [2] [Anonymous], 2010, 2281 GBT
  • [3] Optical fiber sensors for static and dynamic health monitoring of civil engineering infrastructures: Abode wall case study
    Antunes, Paulo
    Lima, Hugo
    Varum, Humberto
    Andre, Paulo
    [J]. MEASUREMENT, 2012, 45 (07) : 1695 - 1705
  • [4] Assessing local-scale damage in reinforced concrete frame structures using dynamic measurements
    Bui, Q. -B.
    Mommessin, M.
    Perrotin, P.
    Plassiard, J. P.
    Ple, O.
    [J]. ENGINEERING STRUCTURES, 2014, 79 : 22 - 31
  • [5] Finite-element analysis and design of aluminium alloy CHSs with circular through-holes in bending
    Feng, Ran
    Shen, Chengdong
    Lin, Junwu
    [J]. THIN-WALLED STRUCTURES, 2019, 144
  • [6] Tests of perforated aluminium alloy SHSs and RHSs under axial compression
    Feng, Ran
    Zhu, Wu
    Wan, Haiying
    Chen, Anying
    Chen, Yu
    [J]. THIN-WALLED STRUCTURES, 2018, 130 : 194 - 212
  • [7] Experimental and numerical study on the bending performance of an aluminium alloy flower-gusset composite joint
    Gang, Wang
    Caiqi, Zhao
    Jun, Ma
    [J]. STRUCTURES, 2021, 33 : 2475 - 2486
  • [8] Jun-ichi S., 2005, Fire Sci. Technol., V24, P237, DOI DOI 10.3210/FST.24.237
  • [9] System identification of steel framed structures with semi-rigid connections
    Katkhuda, Hasan N.
    Dwairi, Hazim M.
    Shatarat, Nasim
    [J]. STRUCTURAL ENGINEERING AND MECHANICS, 2010, 34 (03) : 351 - 366
  • [10] Mechanical Properties and Design Method of Aluminum Alloy Bolt-sphere Joints
    Liu, Hong-Bo
    Gu, Ao
    Chen, Zhi-Hua
    Tan, Zhi-Lun
    Zhou, Guan-Gen
    [J]. STRUCTURAL ENGINEERING INTERNATIONAL, 2021, 31 (01) : 30 - 39