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

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.

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