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Control of Wind-Induced Tall Building Vibration by Tuned Mass Dampers.

PB90259334

Publication Date	1990
Personal Author	Xu, Y. L.; Kwok, K. C. S.; Samali, B.
Page Count	49
Abstract	Wind tunnel model tests and theoretical analyses were conducted to investigate the effectiveness of tuned mass dampers in suppressing wind-induced tall building motion. The tall building model was a 1:400 scale aeroelastic model of the CAARC Standard Tall Building. The model and the tuned mass damper models of different parameters were designed and tested in a wind tunnel with properly simulated atmospheric boundary layer flow. The aeroelastic test of the CAARC model demonstrated the effectiveness of the tuned mass damper system in suppressing the dynamic response of the building. The parametric study of passive tuned mass dampers, leading to theoretical analysis and design of an effective and efficient tuned mass damper system, was based on excitation spectra which were directly measured from the wind tunnel model tests. Theoretical results were in good agreement with the test results. The analytical results further indicated that the effectiveness of tuned mass dampers can be enhanced by the inclusion of an active control system.
Keywords	Buildings Wind tunnel models Damping Dynamic response Wind pressure Vibration Loads(Forces) Mathematical models Foreign technology Wind loads Wind tunnel tests
Source Agency	Invalid Source Agency Code
NTIS Subject Category	51A - Aerodynamics 89D - Structural Analyses 46E - Structural Mechanics
Corporate Authors	Sydney Univ. (Australia). School of Civil and Mining Engineering.
Document Type	Technical Report
Title Note	Research rept.
NTIS Issue Number	199022

Control of Wind-Induced Tall Building Vibration by Tuned Mass Dampers.

Control of Wind-Induced Tall Building Vibration by Tuned Mass Dampers.
PB90259334

Publication Date	1990
Personal Author	Xu, Y. L.; Kwok, K. C. S.; Samali, B.
Page Count	49
Abstract	Wind tunnel model tests and theoretical analyses were conducted to investigate the effectiveness of tuned mass dampers in suppressing wind-induced tall building motion. The tall building model was a 1:400 scale aeroelastic model of the CAARC Standard Tall Building. The model and the tuned mass damper models of different parameters were designed and tested in a wind tunnel with properly simulated atmospheric boundary layer flow. The aeroelastic test of the CAARC model demonstrated the effectiveness of the tuned mass damper system in suppressing the dynamic response of the building. The parametric study of passive tuned mass dampers, leading to theoretical analysis and design of an effective and efficient tuned mass damper system, was based on excitation spectra which were directly measured from the wind tunnel model tests. Theoretical results were in good agreement with the test results. The analytical results further indicated that the effectiveness of tuned mass dampers can be enhanced by the inclusion of an active control system.
Keywords	Buildings Wind tunnel models Damping Dynamic response Wind pressure Vibration Loads(Forces) Mathematical models Foreign technology Wind loads Wind tunnel tests
Source Agency	Invalid Source Agency Code
NTIS Subject Category	51A - Aerodynamics 89D - Structural Analyses 46E - Structural Mechanics
Corporate Authors	Sydney Univ. (Australia). School of Civil and Mining Engineering.
Document Type	Technical Report
Title Note	Research rept.
NTIS Issue Number	199022