Seismic Response of Full-Scale Structure with Added Viscoelastic Dampers
Publication: Journal of Structural Engineering
Volume 130, Issue 4
Abstract
This paper presents the test and analytical results of a full-scale 5 story steel frame with added viscoelastic (VE) dampers. The ISD110 VE dampers made by 3M Company are installed to the long (East–West) direction of the structure. In addition to carrying out ambient and free vibration tests, the dynamic responses of the VE structure under four moderate earthquakes are recorded and analyzed. The ambient vibration tests show that the increase of damping in the full-scale structure is not obvious because of the small input energy. Nevertheless, in the free vibration tests and under earthquake ground motions, the increase of damping ratio is very significant. Analytical results show that when the structure is added with the diagonal–damper–brace assemblies, the modal strain energy method that has been validated by extensive shaking table tests on small-scale models slightly overestimates the damping ratio of the full-scale structure. However, when the structure is added with the floor–damper–brace assemblies, the method slightly underestimates the damping ratio. In addition to providing important database for verifying the effectiveness of applying the VE dampers to full-scale structures, this study also obtains important experiences concerning the implementation and detailed design of damper connections for practical applications.
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References
Aiken, I. D., and Kelly, J. M. (1990). “Earthquake simulator testing and analytical studies of two energy-absorbing system for multistory structures.” Rep. No. UCB/EERC 90/03, Univ. of California at Berkeley, Berkeley, Calif.
Bergman, D. M., and Hansen, R. D.(1993). “Viscoelastic mechanical damping devices tested at real earthquake displacements.” Earthquake Spectra, 9(3), 389–417.
Chang, G. K. (1996). “Analytical and experimental studies on a full-scale structure with added viscoelastic dampers.” MS Thesis, National Taiwan Univ., Taipei, Taiwan (in Chinese).
Chang, K. C., Chen, S. J., and Lai, M. L.(1996). “Inelastic behavior of steel frames with added viscoelastic dampers.” J. Struct. Eng., 122(10), 1178–1186.
Chang, K. C., Lin, Y. Y., and Lai, M. L.(1998). “Seismic analysis and design of structures with viscoelastic dampers.” ISET J. Earthquake Technology, Indian Society Earthquake Technology (ISET), 35(4), 143–166.
Chang, K. C., Soong, T. T., Oh, S. T., and Lai, M. L.(1992). “Effect of ambient temperature on viscoelastically damped structures.” J. Struct. Eng., 118(7), 1955–1973.
Chang, K. C., Soong, T. T., Oh, S. T., and Lai, M. L.(1995). “Seismic behavior of steel frame with added viscoelastic dampers.” J. Struct. Eng., 121(10), 1418–1426.
Clough, R. W., and Penzien, J. (1993). Dynamics of structures, McGraw-Hill, New York.
Kasai, K., Munshi, J. A., Lai, M. L., and Maison, B. F. (1993). “Viscoelastic dampers hysteretic modal theory, experiment, and application.” Proc., of ATC-17-1 Seminar Seismic Isolation, Passive Energy Dissipation, and Active Control, Vol. 2, Applied Technology Council, Redwood City, Calif., 521–532.
Lai, M. L., Chang, K. C., Soong, T. T., Hao, D. S., and Yeh, Y. C.(1995). “Full-scale viscoelastically damped steel frame.” J. Struct. Eng., 121(10), 1443–1447.
Shen, K. L., and Soong, T. T.(1995). “Modeling of viscoelastic dampers for structural applications.” J. Eng. Mech., 121(6), 694–701.
Shen, K. L., Soong, T. T., Chang, K. C., and Lai, M. L.(1995). “Seismic behavior of a 1/3 scale RC frame with added viscoelastic dampers.” Eng. Struct., 17(5), 372–380.
Tsai, K. C., and Li, J. W. (1994). “DRAIN2D+, a general purpose computer program for static and dynamic analysis of inelastic 2D structures, supplemented with a graphic processor VIEW 2D, user’s guide.” Rep. No. CEER/R83-03, Center for Earthquake Engineering Research, National Taiwan Univ., Taipei, Taiwan.
Wilson, E. L., and Habibullah, A. (1998). SAP90 user manual, Computer & Structures Inc., Berkeley, Calif.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 4 • April 2004
Pages: 600 - 608
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jun 4, 2001
Accepted: Mar 12, 2003
Published online: Mar 15, 2004
Published in print: Apr 2004
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