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作者:

Ge, Chenhe (Ge, Chenhe.) | Li, Pengfei (Li, Pengfei.) (学者:李鹏飞) | Zhang, Mingju (Zhang, Mingju.) | Yang, Meng (Yang, Meng.) | Wan, Weizi (Wan, Weizi.)

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摘要:

The present study develops a novel type of active joint node-bolt fasten wedge (BFW) active joints, aiming to investigate the loadbearing capacity of a BFW joint in a quantitative way and put forward precise formulas for its yield load and compression rigidity. To achieve this, indoor axial loading tests were conducted on two BFW joints, accompanied by a set of numerical simulations with the finite element approach implemented in ABAQUS. Parametric research was then conducted to assess the impact of various factors on the yield load and initial compression rigidity of BFW joints, leading to the derivation of precise calculation formulas for accurate prediction of these parameters. The key findings indicate that enhancing the bolt strength from 10.9 to 12.9 significantly improves mechanical performance. Under axial compression, the final bearing force, yield load, and initial compression rigidity increase by 0.86, 1.06, and 0.15 times, respectively. Numerical models accurately predict joint behavior under axial force, confirming their reliability. Parameter studies reveal that increasing web and eaves thickness, bolt strength, and diameter improves bearing capacity, while splint thickness has little effect. The fitting formulas introduced can precisely estimate yield load and rigidity, providing practical value for engineering applications.

关键词:

Finite element analysis (FEA) BFW Yield load Load-bearing capacity Compression rigidity Parametric analysis

作者机构:

  • [ 1 ] [Ge, Chenhe]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Pengfei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Mingju]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Wan, Weizi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Yang, Meng]Third Construction Engn Co Ltd, China Construction Engn Bur 2, Beijing 100070, Peoples R China

通讯作者信息:

  • 李鹏飞

    [Li, Pengfei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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来源 :

UNDERGROUND SPACE

ISSN: 2096-2754

年份: 2025

卷: 21

页码: 100-116

6 . 4 0 0

JCR@2022

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SCOPUS被引频次: 3

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