Multi-Criteria Optimal Structural Design Under Uncertainty
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 a simple example 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.
Additional Information
© 1999 John Wiley & Sons, Ltd. Received 21 October 1997, Revised 10 November 1998. Contract/grant sponsor: CUREe-Kajima Research Program, Contract/grant sponsor: National Science Foundation; Contract/grant number: CMS-9796135. This paper is based upon work supported by the California Universities for Research in Earthquake Engineering under the CUREe-Kajima Research Program and by the National Science Foundation under grant CMS-9796135. The CODA software package was developed as a team effort by the authors with H. A. Smith, V. Vance and L. Barroso of Stanford University and S. F. Masri and W. M. Xu of University of Southern California.Additional details
- Eprint ID
- 33066
- Resolver ID
- CaltechAUTHORS:20120809-152942898
- CUREe Kajima Research Program
- CMS-9796135
- NSF
- Created
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2012-08-13Created from EPrint's datestamp field
- Updated
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2021-08-18Created from EPrint's last_modified field