柱支撑公路桥梁的非平稳地震反应

Proceedings of 3rd International Symposium on Uncertainty Modeling and Analysis and Annual Conference of the North American Fuzzy Information Processing Society Pub Date : 1995-03-17 DOI:10.1109/ISUMA.1995.527737

G. Fu, J. Lall

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引用次数: 0

摘要

研究了桥梁上部结构相对于下部结构(柱)的地震位移，包括地震输入的不确定性。地震激励被模拟为由Clough-Penzien(1975)滤波器过滤的白噪声，在级联中使用调制来考虑地震烈度的非平稳性。得到了相对位移及其导数统计量的解析解。这些可用于开发设计的概率地震反应谱。

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Nonstationary seismic response of highway bridges supported on columns

The seismic displacement of a bridge superstructure relative to its substructure (columns) is studied, including uncertainty of the seismic input. The earthquake excitation is modeled as white noise filtered by the Clough-Penzien (1975) filter, in cascade with modulation accounting for seismic intensity nonstationarity. An analytical solution is obtained for the statistics of the relative displacement and its derivatives. These may be used to develop probabilistic seismic response spectra for design.

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Proceedings of 3rd International Symposium on Uncertainty Modeling and Analysis and Annual Conference of the North American Fuzzy Information Processing Society

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