Critical Seismic Excitation for Structuresby R. Narayana Iyengar, Indian Inst of Science, India,
Abstract: Critical seismic excitations are defined as stationary random functions with a given variance, which maximize the response variance of a linear structural dynamic system. A method is presented for arriving at the analytical solutions. Numerical results are presented for a nuclear power plant structure such that the lateral acceleration at a particular floor level is a maximum. The response spectrum of the critical excitation is also found. It is found that the results obtained are quite realistic.
Subject Headings: Power plants | Seismic tests | Excitation (physics) | Structural systems | Stationary processes | Power spectral density | Dynamic structural analysis | Linear analysis
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