N05: Nonlinear Analysis of Cable Roof

Owned by Gokhan Alkan (Unlicensed)
Last updated: Mar 11, 2019

An orthogonal cable network with hyperbolic paraboloid shape is subjected to point loads.

Determine the displacements.

The roof is modeled by a finite element mesh of 80 cable elements and 41 joints. The joints on the outer boundary are fixed.

The material and sectional properties of the cables are:


Modulus of Elasticity = 24,000,000 lb/in2
Area = 1.0 in2





Tested Features


Sources

  • LARSA 4D
  • G.R. Monforton and N.M. El-Hakim, "Analysis of Truss- Cable Structures", Computers & Structures,
  • EMRC, "NISA II Verification Problems Manual", 1991.