| Simulation of artificial random field considering the temporal-spatial variation |
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| 引用本文： | 倪永军,朱晞. Simulation of artificial random field considering the temporal-spatial variation[J]. 地震学报(英文版), 2002, 15(4): 425-430. DOI: 10.1007/s11589-002-0035-9 |
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| 作者姓名： | 倪永军 朱晞 |
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| 作者单位： | NI Yong-jun ZHU Xi College of Civil Engineering and Architecture，Northern Jiaotong University，Beijing 100044，China |
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| 基金项目： | State Natural Science Foundation of China (59978001). |
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| 摘 要： | Introduction For the seismic design of special structures such as nuclear power station, marine platform, long-span bridge and dam, generally the time-history response analysis of the structure under seismic excitation is imperative, which was coded in most seismic design codes. The earthquake records suitable for the seismic situation and site condition are necessary to be used as the seismic input in the dynamic analysis of structures. As a result of the limited observational condition of st…
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| 收稿时间： | 2001-11-14 |
| 修稿时间： | 2002-03-22 |
Simulation of artificial random field considering the temporal-spatial variation |
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| Ni Yong-jun and Zhu Xi. Simulation of artificial random field considering the temporal-spatial variation[J]. Acta Seismologica Sinica(English Edition), 2002, 15(4): 425-430. DOI: 10.1007/s11589-002-0035-9 |
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| Authors: | Ni Yong-jun and Zhu Xi |
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| Affiliation: | College of Civil Engineering and Architecture, Northern Jiaotong University, Beijing 100044, China |
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| Abstract: | An apparent wave velocity varying with the frequency of seismic wave was adopted rather than an arbitrary one. The phase difference spectrum was introduced to consider the non-stationary properties of frequency contents in simulating artificial random field. The non-stationary random field on hard site considering the temporal-spatial variation was simulated by the way of spectral representation method. This random field can be used as the input of earthquake ground motion of the seismic response analysis of large-span spatial structures considering the effect of multi-supported excitation. |
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| Keywords: | artificial random field apparent wave velocity phase difference spectrum |
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