Subscribe

Stay Current

Receive notice of new reports and other news from MCEER

Seismic Protection of Highway Bridges with Negative Stiffness Devices

N. Attary, M.D. Symans, S. Nagarajaiah, A.M. Reinhorn, M.C. Constantinou, A.A. Sarlis, D.T.R. Pasala and D.P. Taylor

MCEER-13-0013 | 9/3/2014 | 254 pages

About the Report:

TOC: The table of contents is provided.

Keywords: Negative Stiffness Device, Adaptive Passive Control, Highway Bridge Seismic Isolation, Seismic Protection, Shake Table Testing

Abstract: The primary focus of this research is to analyze, implement and experimentally test the novel negative stiffness devices (NSDs) in a highway bridge. The bridge was configured with various isolation system components (isolation bearings, negative stiffness devices, and viscous dampers). In addition, the bridge was designed to mimic either a single-span bridge supported on abutments or an interior span of a multi-span bridge. The results of the investigation clearly demonstrate the effectiveness of the negative stiffness devices in limiting the seismic response of the bridge for multiple bridge configurations.