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


IASS Symposium 2016

SESSION: Metal Spatial Structures

FE modelling and static performance analysis of space trusses with the consideration of purlin and roof panel systems

< 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: 7
  • Title: FE modelling and static performance analysis of space trusses with the consideration of purlin and roof panel systems
  • Author(s): Jinzhi Wu, Jiulong Wang, Guojun Sun, Yigang Zhang, Jihui Xing
  • Keywords: space truss, multi-scale modeling, seconary structure, static behavior
Abstract
The stiffness of the secondary structures will contribute to the main structures. To study the influence of them, the Multi-scale FE modelling method for the whole space truss structure with bolted spherical nodes is introduced, including the bolted ball joints, the purlins and roof panels. And a simplified FE modelling method is given afterwards. The static behavior of some numerical 30mラ30m space trusses with different supporting conditions and different loads are analyzed. The results indicate that the non-structural components, such as purlins and roof panels can improve the vertical stiffness of the space trusses and reduce the internal forces of the chords significantly. The stiffness of the secondary structure can be used to improve the load bearing capacity of the main structure. Based on the equivalent moment of inertia, a simplified method is introduced to estimate the influence of the roof system on the main structure.

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