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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Metal Spatial Structures

Experimental study on the bolt-connected joints for aluminium single-layer reticulated shells

< Table of Contents for Metal Spatial Structures
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Metal Spatial Structures
  • Title: Experimental study on the bolt-connected joints for aluminium single-layer reticulated shells
  • Author(s): Shen WEI, Lianping YANG, Qilin ZHANG, Jian YIN, Yuanwen OUYANG, Keyu SONG
  • Keywords: Aluminum structures; Single-layer reticulated shells; Bolt-connected joints; Experimental study
Abstract
The aluminum single-layer reticulated shells (ASLRSs) have many advantages such as light weight, resistance to corrosion and ease of assembly. Due to these advantages, their applications are getting wider in the joint systems for spatial structures with column-free large spaces. The welding performance of structural aluminum is poor, so bolt-connected joints are commonly used. In order to study the mechanical performance of the bolt-connected joints for ASLRSs, a full-scale test was carried out. The failure mode, rotational stiffness and bending capacity were investigated. The test results indicate that, this type of joint can be designed as rigid when some certain conditions are satisfied, and the failure mode is fracture of the bottom flange sections which are weaken by the bolts within the joint area. It is suggested that the number of bolts in the rows which are most away from the center of the gusset plate should be controlled.

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