Location
New York, New York
Date
17 Apr 2004, 10:30am - 12:30pm
Keywords and Phrases
Displacement, Bridge abutment, Earthquake
Abstract
Bridge abutments may experience significant displacements during earthquakes. A two-dimensional model has been developed considering sliding and overturning displacement and 1) strain dependent soil stiffness and soil damping and 2) horizontal and vertical time dependent seismic load. The displacements are computed from the static equilibrium position where the seismic backfill force increments are considered for determining the active earth force acting behind the abutment wall. This means that the permanent displacement increment occurred if the acceleration acts towards the backfill and the abutment wall moves away from the backfill. The total displacement at the top of bridge abutment is calculated by adding the sliding and overturning displacements. An application of this model is presented, for a real abutment.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Munaf, Yulman and Prakash, Shamsher, "Displacement of Bridge Abutment Under Earthquake Loading" (2004). International Conference on Case Histories in Geotechnical Engineering. 38.
https://scholarsmine.mst.edu/icchge/5icchge/session03/38
Displacement of Bridge Abutment Under Earthquake Loading
New York, New York
Bridge abutments may experience significant displacements during earthquakes. A two-dimensional model has been developed considering sliding and overturning displacement and 1) strain dependent soil stiffness and soil damping and 2) horizontal and vertical time dependent seismic load. The displacements are computed from the static equilibrium position where the seismic backfill force increments are considered for determining the active earth force acting behind the abutment wall. This means that the permanent displacement increment occurred if the acceleration acts towards the backfill and the abutment wall moves away from the backfill. The total displacement at the top of bridge abutment is calculated by adding the sliding and overturning displacements. An application of this model is presented, for a real abutment.
