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作者:

Zhang, Ailin (Zhang, Ailin.) | Ye, Quanxi (Ye, Quanxi.) | Zhan, Xinxin (Zhan, Xinxin.) | Ma, Xiaofei (Ma, Xiaofei.)

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摘要:

To solve the problem of the excessive residual deformation after severe quake and the prestress loss of re-centering cables, a fabricated friction dissipation re-centering brace with zero initial cable force (FZFRB), which has energy dissipation and re-centering capacity, was put forward. The working mechanism and restoring force models of the brace were carried out by theoretical derivation. The mechanical properties were simulated by the ABAQUS software. The comparative analysis of the theoretical derivation results, the finite element simulation results and the experimental results was conducted. The results show that the hysteresis curves obtained by theoretical derivation, finite element simulation and experiments are in good agreement. There is no stiffness degradation during the loading process. The internal force of the cable varies linearly and there is no internal force loss. Therefore, the structure of this brace with alternating bearing of two sets of cables with the initial force of 0 kN can effectively avoid prestress loss. The hysteresis curves of this brace is full and the energy consumption law is stable, exhibiting that the brass-slotted steel friction plate can provide stable energy consumption. When the displacement of the brace is zero after unloading, the residual loads obtained by theoretical derivation, finite element simulation and experiments are 0, -0.12, 0 kN, respectively, proving that this brace has good re-centering capability. © 2017, Editorial Department of Journal of Southeast University. All right reserved.

关键词:

ABAQUS Brass Cables Energy dissipation Energy utilization Fabrication Finite element method Friction Hysteresis Plates (structural components) Unloading

作者机构:

  • [ 1 ] [Zhang, Ailin]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Zhang, Ailin]Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Ye, Quanxi]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Zhan, Xinxin]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Ma, Xiaofei]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

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来源 :

Journal of Southeast University (Natural Science Edition)

ISSN: 1001-0505

年份: 2017

期: 1

卷: 47

页码: 142-149

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 5

ESI高被引论文在榜: 0 展开所有

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