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| Bending-free theory and optimized reposition balance method, used to find the self-balance prestress of tensility structures |
| Revised:March 24, 2004 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20062033 |
| KeyWord:tensility structures,force-finding analysis,bending-free theory,reposition balance method,optimization |
| XIA Jin-song LI Jian-hong GUAN Fu-ling XU Yan |
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| Abstract: |
| Tensility structures engineering and form-finding theory require to find the self-balance prestress of the structures.Used the bending-free theory,analytic formulae about the self-balance prestress were deduced.And the analytic formulae indicate that the self-balance prestress is mostly determined by character of the membrane curved face and the boundary condition.Based on the similarity principle,the numerical method:reposition balance method was put forward to find the prestress.This method was optimized by means of the relationship of element on the membrane curved face.Comparison between the analytic method and the numerical one indicates that the optimized reposition balance method has very high precision and can accurately analyze actual engineering. |
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