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


IASS Symposium 2016

SESSION: Metal Spatial Structures

Buckling strength of steel tubular members related to semi-rigidity of gusset-plate connection for spatial structures

< 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: 10
  • Title: Buckling strength of steel tubular members related to semi-rigidity of gusset-plate connection for spatial structures
  • Author(s): Takanori Oya, Shun-ichi Takagi, Jun-ya Okazaki, Shiro Kato
  • Keywords: experiment, connection, semi-rigid, buckling stress, equivalent buckling length, design formula, stiffening effect, tubular member
Abstract
A steel tubular member with gusset plate connection has been often applied in spatial structures, commonly for single layer and double layer lattice structures. In some cases, the buckling length of the tubular members tends to be longer than the distance between both end nodes. Then the buckling capacity of the spatial structures is much influenced totally by the rigidity of gusset plate, however, there is only a few number of studies concerning the effects to buckling capacity. First, this paper reports a series of buckling experiments for the effect of the gusset plate connection with different plate thickness, and secondly discusses the results from a viewpoint of buckling strength of the steel tubular member with gusset plate connection for design based on comparison with analytical studies. Finally, the present paper clarifies that a certain thickness for the gusset or rib-reinforcing to the gusset is much effective to improve the buckling strength of the member.

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