Seismic performance reliability analysis of reinforced concrete buildings as parameterized by ductility
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Reliability analysis assessment of seismic performance for regular reinforced concrete buildings was investigated in this work. This was performed through the response surface methodology in order to derive explicit expression of the failure function. Two limit states defined in terms of the total building roof displacement and the maximum inter-story drift were considered. The seismic behavior of the building was examined by using conventional pushover analysis through finite element computations conducted by means of a specialized software package. Three random variables characterizing material resistance variations of concrete and reinforcement steel as well as concrete members section were introduced. A complete factorial design of experiment table having three levels was used to define a finite set of data points where the failure function was evaluated, before using these results to perform identification of the building response surface model via polynomial regression. An application of this procedure was illustrated on a five story building and analysis of reliability in terms of the actual ductility coefficient was achieved. Discussion was carried out about the effect on reliability resulting from the distributions of probability modeling parameters uncertainties and from using the approximate methods: Monte Carlo based sampling analysis and first order reliability method.
CitationEl Ghoulbzouri , A., Khamlichi, A., Bezzazi, M., Lopez Almansa, F. Seismic performance reliability analysis of reinforced concrete buildings as parameterized by ductility. "Journal of Basic and Applied Scientific Research", 1 Gener 2010, vol. 1, núm. 1, p. 1-11.
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