Upload
berny
View
52
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Original position. Final position with residual deformation. #1 Pier & pile group. #2 Pier & pile group. #3 Pier & pile group. #4 Pier & pile group. #5 Pier & pile group. #6 Pier & pile group. #7 Pier & pile group. #8 Pier & pile group. Left abutment. Right abutment. - PowerPoint PPT Presentation
Citation preview
Bridge-Foundation
SystemResponse
Poster by A. Elgamal, J.-P. Conte, L. Yan, Z. Yang, and J. Lu (UC San Diego)
Stereoscopic Visualization
Ground-foundation interaction dictates the level and characteristics of earthquake excitation. Lateral ground deformation can unseat the bridge deck, and/or damage the bridge approach ramps. In recent earthquakes, bridge damage resulted in prolonged traffic disruptions and Billion Dollar level replacement expenses.
The Pacific Earthquake Engineering Research Centerheadquarters at the University of California, Berkeley
for more information see http://peer.berkeley.edu
r
Original position Final position with residual deformation
#1 Pier & pile group
#2 Pier & pile group
#3 Pier & pile group
#4 Pier & pile group
#5 Pier & pile group
#6 Pier & pile group
#7 Pier & pile group
#8 Pier & pile groupLeft
abutmentRight
abutment
Original position
Final position with residual deformation
(a) Elevation view (exaggerated scale by a factor of 50)
(b) Plan view (exaggerated scale by a factor of 150)
Permanent Deformation of Bridge, Foundations, and Abutments
Reinforcing Steel
Unconfined concrete Confined concrete
0.61m2.13m0.61m
0.61m
0.61m
Nonlinear Fiber Bridge Pier & Foundation Pile Cross Sections
Reinforcing steel
Unconfined concreteConfined concrete
1.37m
PEER Humboldt Bay Bridge Testbed: Assessment of Ground Deformation Effects on Bridge System Response
Ground-Foundation-Bridge Computational Model
The PEER OpenSees simulation platform enables large-scale earthquake simulations employing state-of-the-art computational models for ground materials, pile foundations, and bridge structural elements.
PEER is contributing to the solution through high-fidelity computational simulation of actual bridge Testbed scenarios
http://opensees.berkeley.edu