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| Interval estimation method of random seismic peak response fornon-classically dynamic system under earthquake fortification level |
| Received:September 28, 2007 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20095010 |
| KeyWord:earthquake fortification level non-classically dynamic system complex mode variation coefficient random seismic peak response interval estimation |
| Author | Institution |
| 刘文锋 |
青岛理工大学 土木工程学院,青岛 |
| 白志强 |
青岛理工大学 土木工程学院,青岛 |
| 隋杰英 |
青岛理工大学 土木工程学院,青岛 |
| 付兴潘 |
青岛理工大学 土木工程学院,青岛 |
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| Abstract: |
| The seismic random model of ground motion under earthquake fortification level was given based on the new seismic code. The close forms of complex mode time history response and random seismic response were obtained according to the second order differential equation of ground motion for non-classically dynamic system. The mean value and variance of random seismic peak response were derived by peak factor and variation coefficient. The interval estimation method of random seismic peak response for non-classically dynamic system under earthquake fortification level is proposed. The maximum time history responses are studied by 31 actual ground records. The mean value of maximum responses is in accordance with that of random seismic peak response. The availability and reasonableness of the method were examined by typical examples. The interval estimation method could be an important method for seismic design in the future. |