Auteur Spencer Jr., B. F.
Documents disponibles écrits par cet auteur (24)
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Samali, Bijan, Auteur ; Mohammed Al Dawod, Auteur ; Kwok, K. C. S. ; Naghdy, Fazel ; Spencer Jr., B. F., Éditeur scientifique |This Paper focuses on the benchmark problem application regarding the vibration control of tall buildings under cross wind excitation. The building under consideration is the 76-story, 306-m tall reinforced concrete office tower proposed for the[...]
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Wongprasert, N., Auteur ; Symans, M. D., Auteur ; Spencer Jr., B. F., Éditeur scientifique ; Gordon, Colin, Conseiller scientifique |This Paper presents a systematic method for identifying the optimal damper distribution to control the seismic response of a 20-storey benchmark building. A genetic algorithm with integer representation was used to determine the damper locations[...]
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Richard E. Christenson, Auteur ; Bergman, Lawrence, Éditeur scientifique ; Dyke, S. J. ; Spencer Jr., B. F. ; Ohtori, Y., Auteur |This Paper presents the problem definition and guidelines of a set of benchmark control problems for seismically excited nonlinear buildings. Focusing on three typical steel structures, 3-, 9-, and 20-story buildings designed for the SAC project[...]
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Yang, Jann N., Auteur ; Agrawal, Anil K., Auteur ; Samali, Bijan ; Wu, Jong-Cheng ; Spencer Jr., B. F., Éditeur scientifique |This Paper presents an overview and problem definition of a benchmark problem for the response control of wind-excited tall buildings. The building considered is a 76-story 306 m concrete office tower proposed for the city of Melbourne, Australi[...]
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Battaini, M., Auteur ; Casciati, F., Auteur ; Faravelli, L. ; Spencer Jr., B. F., Éditeur scientifique |The Aim of this paper is to discuss the adoption of a fuzzy controller for the reference system proposed in the benchmark problem covering the wind response control of a tall building. The writers approach the problem by conceiving the fuzzy con[...]
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Richard E. Christenson, Auteur ; Spencer Jr., B. F., Auteur ; Johnson, Erik A. ; Betti, Raimondo, Éditeur scientifique |Stay cables, such as are used in cable stayed bridges, are prone to vibration due to their low inherent damping characteristics. Transversely attached passive vicous dampers have been implemented in many bridges to dampen such vibration. However[...]
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Kim, Saang Bum, Auteur ; Yun, Chung-Bang ; Spencer Jr., B. F., Auteur |This Paper presents a new frequency domain identification method for multi-output (MIMO) systems. Based on experimentally determined frequency response function data, rational polynomial transfer function models of structural systems are identif[...]
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Mohammed Al Dawod, Auteur ; Samali, Bijan, Auteur ; Kwok, Kenny ; Naghdy, Fazel ; Spencer Jr., B. F., Éditeur scientifique |This Paper focuses on the benchmark control problems for seismically excited nonlinear buildings. The benchmark study focuses on three typical steel structures, 3-, 9-, and 20-story buildings designed for the SAC project for the Los Angeles regi[...]
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Kim Dinh, Pham, Auteur ; Jin, G., Auteur ; Sain, M. K. ; Spencer Jr., B. F. ; Liberty, S. R. ; Bergman, Lawrence, Éditeur scientifique ; Freimann, Frank M., Auteur ; Newmark, Nathan M. |This paper presents a comprehensive study of the stage-3 benchmark problem for response control of wind-excited tall buildings based on the linear quadratic gaussian (LQG) approach, and on its generalization, the k-cost-cumulant control method. [...]
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Inho Hwang, Auteur ; Jong-Seh Lee, Auteur ; Spencer Jr., B. F., Auteur |Rain-wind induced cable vibration can cause serious problems in cable-stayed bridges. Externally attached dampers have been used to provide an effective means to suppress the vibration of relatively short stay cables. For very long stay cables, [...]
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Yang, Jann N., Auteur ; Silian Lin, Auteur ; Jabbari, Faryar ; Spencer Jr., B. F., Éditeur scientifique |Two multiobjective control strategies are presented and applied to the wind-excited benchmark problem. The first strategy, referred to as the energy-to-peak based controller, deals with a class of “energy-bounded” excitations, whereas the second[...]
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Wang, Sheng-Guo, Auteur ; Spencer Jr., B. F., Éditeur scientifique |This Paper introduces a linear quadratic Gaussian (LQG)-α control with adjustable relative stability and gain parameter for the benchmark problems. The considered control algorithm is one active control methodology. It provides a various relativ[...]
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Mei, Gang, Auteur ; Spencer Jr., B. F., Éditeur scientifique ; Ahsan Kareem, Auteur ; Kantor, Jeffrey C. |In this paper, a “third generation” benchmark problem that focuses on the control of wind excited response of a tall building, using the Model Predictive Control (MPC) scheme, is presented. A 76 story, 306 m tall concrete office tower proposed f[...]
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Wu, Jong-Cheng, Auteur ; Yang, Jann N., Auteur ; Spencer Jr., B. F., Éditeur scientifique |Among promising control strategies, the sliding mode control is particularly robust with respect to structural uncertainty. In this paper, a modified sliding mode control (MSMC) strategy using dynamic output feedback is presented and demonstrate[...]
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Ahlawat, A. S., Auteur ; Ramaswamy, A., Auteur ; Spencer Jr., B. F., Éditeur scientifique |Performance of the structure includes both the safety as well as comfort level for the user. The safety of the structure mainly depends on the displacement response, while the comfort level of occupants depends on the acceleration response. In t[...]
