| 桥梁抗震设计规范实用功率谱 |
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| 引用本文： | 韦晓 王君杰 等. 桥梁抗震设计规范实用功率谱[J]. 同济大学学报(自然科学版), 2000, 28(1): 98-102 |
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| 作者姓名： | 韦晓 王君杰 等 |
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| 作者单位： | [1]上海市地震局，上海２０００６２ [2]同济大学土木工程防灾国家重点实验室，上海２０００９２ |
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| 基金项目： | 国家科学技术委员会攀登B计划资助项目(85-40);建设部1998工程建设规范制订资助项目 |
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| 摘 要： | 首先扼要阐述了结构抗震分析中反应谱与功率谱的优缺点，指出桥梁抗震设计规范强引入功率谱方法的必要性；利用反应谱与功率谱之间的关系将抗震设计规范加速度反应谱转化为功率谱，为桥梁抗震设计规范采用随机振动分析方法提供了规范反应谱相协调的功率谱密度。
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| 关 键 词： | 功率谱 反应谱 随机振动 桥梁 抗震设计 |
| 文章编号： | 0253-374(2000)01-0098-05 |
Applicable Power Spectral Density Functions for Seismic Design Code of Bridge |
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| WEI Xiao ,WANG Jun-jie ,YUAN Wan-cheng ,FAN Li-chu. Applicable Power Spectral Density Functions for Seismic Design Code of Bridge[J]. Journal of Tongji University(Natural Science), 2000, 28(1): 98-102 |
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| Authors: | WEI Xiao WANG Jun-jie YUAN Wan-cheng FAN Li-chu |
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| Affiliation: | WEI Xiao 1,WANG Jun-jie 2,YUAN Wan-cheng 2,FAN Li-chu 2 |
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| Abstract: | The advantage of stochastic vibration analysis and response spectrum analysis methods is briefly explained in this paper, and the necessity that stochastic vibration method be adopted in the Bridge Seismic Design Code is pointed out. A simple and iterative method is presented for transferring response spectrum of acceleration (RSA) to power spectral density functions (PSDF). Then, the power spectral density functions compatible with normalization acceleration response spectrum of the current bridges earthquake resistance design code was computed for seismic analysis employing stochastic vibration analysis method, which would be suggested in design code of structures in the near future. |
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| Keywords: | power spectral density response spectrum stochastic vibration |
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