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| Loss Assessment and Optimum Design of Multi-Storey Nonlinear Aseismic Structures |
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| DOI：10.7511/jslx19922026 |
| KeyWord:damage index, fuzzy damage grade, dynamical reliability, loss expectation, optimum design. |
| Ou Jinping Niu Ditao Wang Guangyuan |
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| Abstract: |
| In this paper, an optimization formulation with double objectives (initial construction cost and expected failure loss) and dynamical reliability constraints is established and a feasible method of the corresponding optimum design is presented for the multi-story nonlinear aseismic steel structures. Firstly, the earthquake ground motion is simulated as a stationary filtered non-white noise and the fuzzy damage grades expressed by the damage index of structural system is established. Then, the concrete methods are presented for analysis and determination of fuzzy dynamical reliability and expected failure loss in the optimization formulation of structure. |
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