Chiang Mai Structures Workshop |
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| 1 | Understand ideal "funicular" shape for assumed loads. Other images |  |
| 2 | Invert funicular form to switch between tension and compression. Other images |  |
| 3 | Switch between tension and compression by moving force along "line of action." |  |
| 4 | Allow moment diagram to influence overall structural form. Other images |  |
| 5 | Understand position of inflection points and their relation to internal hinges. Other images |  |
| 6 | Adjust cross-sectional shape based on deviation of actual from "ideal" overall form; or based on deviation of actual from "ideal" loads. Other images |  |
| 7 | Resolve bending moment into axial tension and compression. Other images |  |
| 8 | Balance thrusts through repetition and symmetry. Other images |  |
| 9 | Use triangulation or rigid joints to make structures stable under all possible loads. Other images |
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| a. Triangle can resist load applied in any direction by resolving the load (force) into components corresponding to the legs of the triangle. | ||
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| b. Legs of the triangle are in tension or compression, depending on the direction of the reaction to the load (force). |  |
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| c. Compression members can be avoided by using cross-bracing, or by providing single braces in opposite directions. | ||
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| 10 | Apply rules, especially for stability, to the third dimension. Other images |  |
| Copyright 2001 J. Ochshorn. First posted 28 July 2001; last revised 21 March 2003. return to homepage | ||
