Experimental investigation of adjacent buildings connected by fluid damper

✍ Scribed by Xu, Y. L.; Zhan, S.; Ko, J. M.; Zhang, W. S.

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 268 KB
• Volume: 28
• Category: Article
• ISSN: 0098-8847
• DOI: 10.1002/(sici)1096-9845(199906)28:6<609::aid-eqe831>3.0.co;2-s

✦ Synopsis

Dynamic characteristic and harmonic response of adjacent buildings connected by #uid damper were experimentally investigated using model buildings and #uid damper. Two building models were constructed as two three-storey shear buildings of di!erent natural frequencies. Model #uid damper connecting the two buildings was designed as linear viscous damper of which damping coe$cient could be adjusted. The two buildings without #uid dampers connected were "rst tested to obtain their individual dynamic characteristics and responses to harmonic excitation. The tests were then carried out to determine modal damping ratios of the adjacent buildings connected by the #uid damper of di!erent damping coe$cients and at di!erent locations. Optimal damper damping coe$cient and location for achieving the maximum modal damping ratio were thus found. The measured modal damping ratios and harmonic responses of the building-#uid damper system were "nally compared with those from the individual buildings. The comparison showed that the #uid damper of proper parameter could signi"cantly increase the modal damping ratio and tremendously reduce the dynamic response of both buildings.