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Vol. 48 (2007) No. 1 April n. 153


Experimental Study of the Effects of Bolt Tightness on the Behaviour of MERO-type Double-Layer Grids

< Table of Contents for Vol. 48 (2007) No. 1 April n. 153
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 48 (2007) No. 1 April n. 153
  • Pages: 45-52
  • Title: Experimental Study of the Effects of Bolt Tightness on the Behaviour of MERO-type Double-Layer Grids
  • Author(s): M. R. Davoodi, M. H. Pashaei, S. A. Mostafavian
  • Keywords: Bolt tightness, Load-deflection response, Double layer grid.
Abstract
The main objective of the present work is to study the effects of bolt tightness on the response of a MERO-type double layer grid. A full-scale double layer grid was tested with three different support conditions and four different levels of bolt tightness. In each case, all the bolts of the grid were tightened to a specific degree of tightness. Then, deflections of a number of nodes were measured for a central point load. The load-deflection responses of the test grid show that the degree of bolt tightness has a significant effect on the behaviour of the grid. The experimental results indicate that the load-deflection responses of a MERO-type double layer grid lie in a region whose upper and lower limits depend on the support conditions of the grid.

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