Problem Description

In this example six cables, each with an undeformed length of 100 feet, and each with a different configuration of supports, are subjected to a 1 kip/ft uniform vertical load (which includes cable self-weight) and a 100 F temperature change. The geometry, properties and loading are as described in Figure 5 of Peyrot and Goulois, 1979 and are reproduced in the following figure. The cable element is used in this model. The support reactions resulting from the prescribed uniform and temperature loads are compared with results presented in Peyrot and Goulois, 1979.
In this model cable C1 is modeled and results for cables C2 through C6 are obtained by applying appropriate joint displacement loads to the lower support in the model. The modulus of elasticity, E, is set to 1 k/ft2, the cable area is set to 30,000,000 ft2, and the coefficient of thermal expansion is set to 0.0000065/F.

Tested Features

Uniform load applied to cable elements
Temperature load applied to cable elements
Joint displacement loading
Nonlinear static analysis

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