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Journal of the South African Institution of Civil Engineering

versão On-line ISSN 2309-8775

Resumo

ROTH, C P  e  GRIGORIU, M D. Applications of response sensitivity analysis in earthquake engineering. J. S. Afr. Inst. Civ. Eng. [online]. 2010, vol.52, n.2, pp. 12-18. ISSN 2309-8775.

Response sensitivity analysis as a part of dynamic finite element structural analysis has many applications to structures of realistic scale and complexity in earthquake engineering. A demonstration project, consisting of a hospital structure and piping network, is used to demonstrate the potential applications of the method to practical problems. Nonlinear finite element analysis is done to determine displacements, stresses, etc, as well as sensitivity information by the direct differentiation method. The response sensitivity analysis is used for the identification of critical parameters of the systems, optimisation, calibration and the generation of fragility curves.

Palavras-chave : sensitivity analysis; finite element analysis; seismic design; fragility curve.

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