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Design of an Excitation System for Simulating Wind-Induced Response and Evaluating Wind-load Resistance Characteristics  

Park, Eun-Churn (단국대학교 건축공학과)
Lee, Sung-Kyung (단국대학교 건축공학과)
Min, Kyung-Won (단국대학교 건축공학과)
Chun, Lan (단국대학교 건축공학과)
Kang, Kyung-Soo (동명대학교 건축공학과)
Lee, Sang-Hyun (단국대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.20, no.6, 2007 , pp. 769-778 More about this Journal
Abstract
In this paper, excitation systems using linear mass shaker (LMS) and active tuned mass damper (ATMD) are presented in order to simulate the wind induced responses of a building structure. The actuator force for the excitation systems is calculated by using the inverse transfer function of a target structural response to the actuator. Filter and envelop function are used such that the error between the wind and actuator induced responses is minimized by preventing the actuator from exciting unexpected modal response and initial transient response. The analyses results from a 76-story benchmark building problem in which wind load obtained by wind tunnel test is given, indicate that the excitation system installed at a specific floor can approximately embody the structural responses induced by the wind load applied to each floor of the structure. The excitation system designed by the proposed method can be effectively used for evaluating the wind response characteristics of a practical building structure and for obtaining an accurate analytical model of the building under wind load.
Keywords
excitation system; linear mass shaker; active tuned mass damper; transfer function method; 76-story benchmark building problem; wind load;
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Times Cited By KSCI : 1  (Citation Analysis)
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