الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
The work reporTed here concenzs wirh rhe behavior of rhe Double Grids and rheir collapse loads. Several facrors which affecrs load and the grid behavior are investigated. The use of Force Device. Prestressing of crirical compression members, Reduction rea of critical tension members and increase of the area of critical members are included ill the analysis. The nonlinearities due
ler1\’ and marerial of rhe grids are also included.
everal numerical examples are soLved and the resuLrs obtained that using rhe Force Limiting Device and increase of the area