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http://dx.doi.org/10.5000/EESK.2005.9.2.017

Integrated Optimum Design and Cost Effectiveness Evaluation of Viscoelastically Damped Building Structures based on Life-Cycle Cost Minimization  

Park, Kwan-Soon (동국대학교 건축공학과)
Hahm, Dae-Gi (서울대학교 지구환경시스템공학부)
Koh, Hyun-Moo (서울대학교 지구환경시스템공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.2, 2005 , pp. 17-27 More about this Journal
Abstract
This paper presents an integrated optimum design and a cost effectiveness evaluation method of a viscoelastically damped structural system. The criterion selected for the optimization is the minimization of the life?cycle cost which is a function of structural sizing variables and the amount of the viscoelastic damper. A genetic algorithm is used as a numerical searching technique in order to simultaneously find the optimum parameters of the integrated system. Optimal distributions of design variables according to various seismic characteristics are investigated by applying the proposed design method to a numerical example of a 10?story building structure. The cost effectiveness of viscoelastically damped structural system is also evaluated by comparing the life-cycle cost of the structure without viscoelastic dampers. The results show that the viscoelastic damper is effective in a region of low to moderate seismicity.
Keywords
integrated optimum design; cost effectiveness; viscoelastic damper; life-cycle cost; genetic algorithm;
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