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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Metal Spatial Structures

Numerical analysis on hysteretic behavior of aluminum alloy gusset joints

< Table of Contents for Metal Spatial Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Metal Spatial Structures
  • Pages: 8
  • Title: Numerical analysis on hysteretic behavior of aluminum alloy gusset joints
  • Author(s): Linlin Liu, Xiaonong Guo, Renpeng Wang, Yongfeng Luo, Zhe Xiong
  • Keywords: aluminum alloy gusset joints, hysteretic behavior, skeleton curve, ductility coefficient, energy dissipation coefficient
Abstract
Aluminum Alloy Gusset joints (AAG joints) have been widely used in single-layer reticulated shells in recent years. To reveal more information on the hysteretic behavior, a numerical study on AAG joints under cyclic out-of-plane moment is presented in this paper. One sixth of the joint was modelled numerically considering the symmetry of geometry and load conditions. It is shown that the behavior of AAG joints in the whole loading process can be roughly divided into 5 phases: elastic stage, bolts slipping stage, the yielding stage, the peak stage and failure stage. The failure modes include the buckling of member web and the block tearing of gusset plate. Hysteretic curves are plump in general and significantly influenced by the bolts slipping. The energy analysis indicated that the inelastic deformation was the main energy dissipation mechanism. AAG joints can provide ideal ductility and large energy dissipation under cyclic out-of-plane bending moment.

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