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| Substructure method for earthquake response analysis of complicated =site soil based on modal perturbation principle |
| Received:March 02, 2007 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20092013 |
| KeyWord:complicated site-soil equivalent linear computational method restrained mode synthesis method modal perturbation solution |
| Author | Institution |
| 楼梦麟 |
同济大学 土木工程防灾国家重点实验室,上海 |
| 白建方 |
同济大学 土木工程防灾国家重点实验室,上海 |
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| Abstract: |
| The equivalent linear computational analysis method based on combination of restrained mode synthesis method and direct modal perturbation solution for 3D seismic response analysis of complicated site soil is proposed. The application of the principle of direct modal perturbation has the advantages,i.e., simplification of the mode analysis process of each substructures and transforming the solution of eigenvalue problem to the solution of nonlinear algebraic equation. Then the computational efficiency is improved effectively. Results of numerical examples show that the modified method can obviously increase computational efficiency of earthquake response analysis of the large-scale complicated site soil. |