Seismic Performance Normalization of Bridges using a Damping-Enhanced Strengthening Methodology
In this paper, a viscoelastic layer is integrated into a fiber reinforced polymer strengthening jacket for the seismic retrofit of a three-span steel-girder bridge. The distributed damping layer is represented by a series of discrete and complex springs in the finite element model of bridge columns. Damping ensures that the bridge is operational under moderate earthquakes and strengthening mainly ensures the bridge safety under strong earthquakes. Together, they meet the multiple performance objectives under earthquakes of varying intensities.
G. Chen and K. R. Karim, "Seismic Performance Normalization of Bridges using a Damping-Enhanced Strengthening Methodology," Proceedings of the 14th World Conference on Earthquake Engineering (2008, Beijing, China), National Information Centre of Earthquake Engineering (NICEE), Oct 2008.
14th World Conference on Earthquake Engineering (2008: Oct. 12-17, Beijing, China)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Viscoelastic Damping; Fiber Reinforced Polymer Jacketing; Performance-based Design
Article - Conference proceedings
© 2008 National Information Centre of Earthquake Engineering (NICEE), All rights reserved.