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Stochastic Responses of Lifeline Systems Under Seismic Excitations

by R. Y. Tan, Natl Taiwan Univ, Taipei, Taiwan,
Y. J. Hu, Natl Taiwan Univ, Taipei, Taiwan,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering

Abstract:

A wave superposition model is proposed to predict the field motion on the basis of the seismic records obtained from a strong motion array. By assuming the ground motion to be a homogeneous random process, one may obtain its time-space spectrum by the FFT technique. The stochastic responses of an underground tunnel and a bridge under the simulated excitations based on that spectrum are calculated.

Subject Headings: Ground motion | Stochastic processes | Tunnels | Load and resistance factor design | Earthquakes | Computer models | Underground structures

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