Reduction of Vibrations in Long-Span Continuous Girder Bridges with Pounding Tuned Mass Dampers

Table 9

Seismic response of the bridge under the record from the Taft earthquake with and without PTMD.

Span (m)	Structural response	Peak value		Decrease rate (%)
		No control	PTMD
120 (side span)	Displacement (m)	0.139	0.096	30.9
	Velocity (m/s)	1.56	1.04	33.3
120 (midspan)	Displacement (m)	0.165	0.104	37.0
	Velocity (m/s)	1.7	1.13	33.5
80	Displacement (m)	0.082	0.07	14.6
	Velocity (m/s)	0.85	0.78	8.2