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

Table 8

Seismic response of the bridge under the record from the El-Centro earthquake with and without PTMD.

Span (m)	Structural response	Peak value		Decrease rate
		No control	PTMD
120 (side span)	Displacement (m)	0.151	0.112	25.8%
	Velocity (m/s)	1.2	0.74	38.3%
120 (midspan)	Displacement (m)	0.202	0.115	43.1
	Velocity (m/s)	1.5	1.0	33.3
80	Displacement (m)	0.93	0.81	12.9
	Velocity (m/s)	0.85	0.60	29.4