Thrust Area 2—Bridge and Transportation Systems
Ross Boulanger (UCD) & Stephen Mahin
(UCB)
Co-Thrust Leaders
Project Descriptions
Simulation of Soil-Foundation-Structure Interaction
of Deep Foundations—2312003
Ross Boulanger (UCD /F), Scott Brandenberg (UCD/GS), Dongdong Chang
(UCD/GS), Heidi Feigenbaum (UCD/GS)
This project supports PEER's mission of providing performance based methodologies
for bridge and building systems by addressing a problem that is of strong interest
to owners and a major source of uncertainty in current design and assessment
practices.
[Full Report]
Performance of Lifelines Subjected
to Lateral Spreading—2342003
Scott Ashford (UCSD /F), Chia-Ming Uang (UCSD/F), Teerawut Juirnarongrit
(UCSD/PD), Lisa Everingham (UCSD/US), Sean Walsh (UCSD/GS), Maria Ibarra (UCSD/O),
Charlotte Richardson (UCSD/O), Robert Parks (UCSD/O), Yosuke Kawamata (UCSD/GS)
The overall project goal is to utilize the full-scale data assess current methods
for estimating the effect of lateral spreading on pile foundations and pipelines,
and develop new procedures if necessary. Specifically for Year 7, our objectives
are to extend results obtained from Tokachi experiment to other experimental
results and to model lateral spreading of blast experiment using seismic loading
in OpenSees.
[Full Report]
top
Evaluation and Propagation of
the Influence of Geotechnical Uncertainties on EDP's—2352003
Steve Kramer (UW/F), Pedro Arduino (UW/F), Sarah Paulsen (UW/GS)
The goal of the proposed project is to systematically investigate the effects
of uncertainty in geotechnical parameters on uncertainty in engineering demand
parameters (EDPs).
[Full Report]
top
Incorporation of Efficient Ground Motion Intensity
measures in Probabilistic Seismic Hazard Assessments of Bridges and
Slopes—2362003
Jonathan Bray (UCB/F), Thaleia Travasarou (UCB/PD)
The
primary objective of this research project is to incorporate several of the
most efficient ground motion intensity measures (IM’s), such
as Sa(2T) and Ia, and the well-used IM PGA into a full probabilistic seismic
hazard assessment (PSHA) of problems of interest to PEER, e.g. the seismic
displacement of non-liquefiable earthen slopes.
[Full Report]
top
Workshop on Simulation and Seismic Performance
of Deep Foundations—2372003
Ross Boulanger (UCD/F)
The proposed workshop will be the culmination of a comparative evaluation of emerging design methods for pile foundations in liquefied ground. The overall goals are as follows:
Cumulative Damage Models for
Reinforcing Bar Buckling and Fracture in RC Beams and Columns—5402003
Dawn Lehman (UW/F), John Stanton (UW/F)
The overall objective of the research is to advance the understanding of bar
buckling in circular reinforced concrete columns and the parameters that control
it.
[Full Report]
top
Tri-Center Initiative—3342003
Jack Moehle (UCB/F), Ron Eguchi (ImageCat/I)
The goal is to enhance PEER research in geographically distributed networks by
strategic planning and collaboration with other earthquake centers.
[Full Report]
top
Database and Simulation Performance Criteria
for Reinforced Concrete Columns—5282003
Marc Eberhard (UW/F), Mike Berry (UW/GS)
As part of this project, we are developing and calibrating tools for assessing
RC column seismic performance, including data and models for both seismically
conforming (ductile) and non-conforming (brittle) columns.
[Full Report]
top
Test of Enhanced Performance Post Tensioned
Columns—5342003
Stephen Mahin (UCB/F), Junichi Sakai (UCB/GS)
The overall goal of this study is to examine and assess various design
concepts for enhancing the seismic performance of new bridge structures
of the type being considered by PEER.
[Full Report]
top
Simulation of Enhanced-Performance Post-Tensioned
Bridge—5362003
Sarah Billington (Stanford/F), Won Lee (Stanford/GS), J. Matt Rouse
(Cornell/O)
The overall goal of this study is to demonstrate how the PEER PBEE methodology
can accelerate the adoption of new bridge design technologies by quantitatively
assessing the performance enhancement provided by these technologies.
[Full Report]
top
Performance Assessment of Highway
Overpasses—5392003
Bozidar Stojadinovic (UCB/F), Kevin Mackie (UCB/GS), Kyungkoo Lee (UCB/GS),
Meghann Rand (UCB/GS)
The goal of this project is to provide the tools for performance assessment of
highway overpass bridges. Such tools enable assessment of bridge performance
in terms of the potential for bridge collapse in an earthquake, cost of repair
of such a bridge after an earthquake, and the ability of the bridge to carry
a given level of traffic load after an earthquake.
[Full Report]
top
Impact of Uncertainties in Seismic
Performance Assessment of Highway Systems—3392003
Anne Kiremidjian (Stanford/F), Ozgur Yazlali (Stanford/GS), Renee
Lee (Stanford/GS)
The objective of this project is to investigate the influence of uncertainty
on risk assessment of spatially distributed systems, such as transportation network.
[Full Report] top
Traffic Delay and Loss Models
for Seismic Performance Assesment of Highway
Systems—3402003
James Moore (USC/F), Yueyue Fan (UCD/F), Sungbin Cho (USC/GS/I), Sei-Young
Lee (USC/GS)
The goal is to provide tools for retrofit decisions in metropolitan transportation
networks.
[Full Report] top