This is a two dimensional truss structure with 32 feet height and 96 feet span. The top chord of the truss is subjected to temperature rise of 50 degrees Fahrenheit. The coefficient of thermal expansion for the material is 0.0000065 in/in/F. The elastic modulus is 30,000,000 psi. Determine the member forces in the structure.
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Sources
- Hsieh, Y.Y., "Elementary Theory of Structures," Prentice-Hall, Inc., 1970, pp. 200-202.
- LARSA 4D
Result Comparison
Independent (Hsieh) | Larsa | OpenBrIM | Percent Difference (Larsa vs Independent) | Percent Difference (OpenBrIM vs Independent) | |
|---|---|---|---|---|---|
| F1 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F2 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F3 | -21.1 | -21.06 | -21.06 | -0,.1896% | -0,.1896% |
| F4 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F5 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F6 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F7 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F8 | -28.1 | -28.08 | -28.08 | -0,.0712% | -0,.0712% |
| F9 | +35.1+ | 35.1 | +35.1 | 0% | 0% |
| F10 | +35.1+ | 35.1 | +35.1 | 0% | 0% |
| F11 | -28.1 | -28.08 | -28.08 | -0,.0712% | -0,.0712% |
| F12 | 0 00 | 0 00 | 0 00 | 0% | 0% |
| F13 | 0.00 | 0.00 | 0.00 | 0% | 0% |
| F14 | -21.1 | -21.06 | -21.06 | -0,.1896% | -0,.1896% |