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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 51
ENGINEERING STRUCTURES UNDER EARTHQUAKE LOADING
Edited by: G. Thierauf
Paper III.1

Discrete Optimization of Structures under Dynamic Loading by using Sequential and Parallel Evolution Strategies

J. Cai and G. Thierauf

Department of Civil Engineering, University of Essen, Essen, Germany

Full Bibliographic Reference for this paper
J. Cai, G. Thierauf, "Discrete Optimization of Structures under Dynamic Loading by using Sequential and Parallel Evolution Strategies", in G. Thierauf, (Editor), "Engineering Structures under Earthquake Loading", Civil-Comp Press, Edinburgh, UK, pp 51-57, 1997. doi:10.4203/ccp.51.3.1
Abstract
An optimization method based on evolution strategies for minimum weight design of steel structures subjected to dynamic loading is presented. Constraints are placed on dynamic displacements, dynamic stresses and discrete values of member sizes. Evolution strategies imitate biological evolution and work simultaneously with a population of design points in the space of variables. This allows for an implementation on a parallel computer. In this paper the basic ideas and a parallelisation technique of evolution strategies for solving optimization problems with discrete variables are described. Several examples are presented to illustrate the features of the method.

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