Abstract
This paper presents a constrained Mult objective optimization method in the form of a robust, practical, problem-independent formulation based on genetic algorithm combined with game theory and investigates the effect of Mult objective optimization on structural design. the study includes objectives, constraints, and design variables as well as their effect on structural design and behavior. the algorithm comprises - Mult objective fitness function, niche method, and Pareto set filter. a 10-story setback building is used to illustrate the evaluation of three choices: steel frame, reinforced concrete frame, composite steel and reinforced concrete frame. Evaluation is based on economics as well as performance. Comparison of optimum design results is obtained with consideration of weight, structural cost, and seismic energy for all three frames subjected to the same seismic input. Constraints are based on Uniform Building Code specifications including stress, displacement, drift, and ratio of story stiffness. the new approach provides a powerful tool to locate a global solution. Copyright 2004 ASCE.
Recommended Citation
F. Y. Cheng et al., "Multiobjective Optimization of Seismic Structures," Structures Congress 2000: Advanced Technology in Structural Engineering, vol. 103, American Society of Civil Engineers (ASCE), Dec 2004.
The definitive version is available at https://doi.org/10.1061/40492(2000)24
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Buildings; Multiple objective analysis; Optimization; Seismic design; Structural design
International Standard Book Number (ISBN)
978-078440492-8
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers (ASCE), All rights reserved.
Publication Date
01 Dec 2004
