A performance-based optimal structural design methodology

Beck, James L. and Papadimitriou, Costas and Chan, Eduardo and Irfanoglu, Ayhan (1998) A performance-based optimal structural design methodology. Technical Report: CaltechEERL:1998.EERL-97-03. California Institute of Technology.

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Abstract

A general framework for multi-criteria optimal design is presented which is well-suited for performance-based design of structural systems operating in an uncertain dynamic environment. A decision theoretic approach is used which is based on aggregation of preference functions for the multiple, possibly conflicting, design criteria. This allows the designer to trade off these criteria in a controlled manner during the optimization. Reliability-based design criteria are used to maintain user-specified levels of structural safety by properly taking into account the uncertainties in the modeling and seismic loads that a structure may experience during its lifetime. Code-based requirements are also easily incorporated into this optimal design process. The methodology is demonstrated with two simple examples involving the design of a three-story steel-frame building for which the ground motion uncertainty is characterized by a probabilistic response spectrum which is developed from available attenuation formulas and seismic hazard models.

EPrint Type:	Monograph (Technical Report)
Subjects:	All Records > Earthquake Engineering Research Laboratory
ID Code:	29
Deposited By:	Caltech Library System
Deposited On:	19 February 2008
Record Number:	CaltechEERL:1998.EERL-97-03
Official Persistent URL:	http://resolver.caltech.edu/CaltechEERL:1998.EERL-97-03
Usage Policy:	You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.

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