Year 7 PEER Principal Investigators A-Z
Pedro Arduino, University of Washington
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]
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.
[Full Report] [top]
Advance Visualization for Seismic Performance—4182003
Mike Bailey (UCSD/F)
One of the obstacles that have held back widespread integrative visualization
has been the Tower-of-Babel problem. That is, everyone communicates their
results in a different way, forcing specific specialty programs to be written
to perform visualization. Visualization innovations often get applied to
one specific problem, and are not available to the rest of the community.
[Full Report] [top]
Building loss Modeling and Benchmarking EDP
to DV—1222003
James Beck (Caltech/F), Keith Porter (Caltech/F), Judith
Mitrani (Caltech/GS)
To evaluate the seismic performance of benchmark buildings designed to current
code (IBC 200x) in terms of PEER’s decision variables (DVs: repair costs,
fatalities, and repair duration, or “dollars, deaths, and downtime”)
and to package for practitioner use relationships between structural response
(PEER’s engineering demand parameters, or EDPs) and DVs.
[Full Report] [top]
Benchmarking
methods for Seismic Hazard Ground Motion Representation and their Effects
on EDP's—3352003
James Beck (Caltech/F), Fatemeh Jalayer (Caltech/PD),
Keith Porter (Caltech/O), John Hall (Caltech/F)
Performance-based earthquake engineering can be characterized by the definition
of quantifiable performance objectives. These performance objectives are, implicitly
or explicitly, defined as probabilistic statements that may address various issues
affecting structural performance; such as structural non-structural and contents
damage, and human casualties.
[Full Report] [top]
Sarah L. Billington , Stanford
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]
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] [top]
Workshop on Simulation and Seismic Performance
of Deep Foundations—2372003
Ross Boulanger (UCD/F)
This workshop supports PEER's efforts toward developing performance based design
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] [top]
Inertial & Kinematic Load Combinations on Pile Foundations in Liquefying & Laterally
Spreading Ground—3F03
Ross Boulanger (UCD/F), D. Chang (UCD/GS)
The objective
of this project is to establish guidelines for inertial and kinematic load combinations
to be used in simplified pushover analyses of pile foundations
in liquefied and laterally spreading ground.
[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]
Nancy Collins, URS Corporation
Checking and Augmentation of NGA Database—1L09
Nancy Collins (URS Corporation/I), Paul Somerville (URS/I),
Robert Graves (URS/I), Carla Willis (URS/I)
Review of the NGA database including earthquake source parameters, station
distance and directivity parameters, orientation of recorded components,
and station locations and other items as may be deemed pertinent.
[Full Report] [top]
Ground Motion Models for Fling Step—1L06
Robert Graves (URS Corp/I), Norman Abrahamson (PG&E/I), Nancy
Collins
(URS
Corp/I)
The objective of this project is to develop a parametric
description of the fling step behavior expected for dip-slip faulting using numerical
simulations of scenario
earthquakes.
[Full Report] top
Nonstructural Hazard Mitigation in Life Sciences
Building Testbed—1202003
Mary Comerio (UCB /F)
The goal of this project is to develop a procedure for estimating downtime
in the loss modeling component of the PEER methodology. The objective is to
enhance current work ongoing in the Van Nuys and UC Science Testbeds by Eduardo
Miranda and Jim Beck. Their work is focused on estimating financial losses
and construction costs for repairs. My work would develop a description of
the rational (construction time related) downtime and the “irrational” component
(financing, business operations, politics, etc.).
[Full Report] [top]
Computational Reliability for Design—4132003
Joel Conte (UCSD/F), Yuyi Zhang (UCSD/GS), Gabriel
Acero (UCSD/GS), Quan Gu (UCSD/GS)
This project will contribute to the development, assessment and validation
of the PEER PBEE methodology and related analytical tools through their
application to a bridge structure with real-world complexities.
[Full Report] [top]
Allin Cornell, Stanford University
Probabillstic vector Valued Ground Motion Intensity
measures (PEER-SCEC Project)—3282003
Allin Cornell (Stanford/F), Paul Somerville (Stanford/F),
Jack Baker (Stanford/GS)
Develop and test the use of a vector-valued Intensity Measure in the Van Nuys
Testbed context. By working jointly the investigators will address both the
structural and seismological aspects of the vector-valued IM approach.
[Full Report] [top]
Post
E-Z Tagging and Pre-EQ Design Utilizing Aftershock Ground Motion Hazard
Analysis—3372003
Allin Cornell (Stanford/F)
Extend new developments for the post-quake environment and develop a new paradigm
for pre-quake design/assessment that explicitly recognizes the pre-quake importance
to owners of (future) post-quake tagging (e.g., evacuation or not), downtime
and their relationships to life safety.
[Full Report] [top]
Calibration of Basin Simulations—1A03
Thomas Henyey (USC/SCEC), Steven Day (SDSU/F), Douglas Dreger
(UCB/F), Shawn Larsen (LLNL/O), Kim Olsen (UCSB/O), Arben Pitarka
(URS Corp/I), Robert Graves (URS Corp/I), Jacobo Bielak (CMU/F), Antonio Fernandez
(CMU/GS)
The project will foster the integration of 3D ground motion simulation methods
and results into engineering applications. We will validate 3D simulation
methods and apply them to complex geological structures, with emphasis on
urban sedimentary basins. This is collaboration between the Pacific Earthquake
Engineering (PEER) Center and the Southern California Earthquake Center (SCEC).
[Full Report] [top]
Gregory Deierlein, Stanford University
Benchmarking Performance of New RC Frames Building—3362003
Gregory Deierlein (Stanford/F), Curt Haselton (Stanford/PD),
Arash Altoontash (Stanford/PD)
The concept for this project grew out of discussions among researchers and
BIP members at the PEER 2003 Annual Meeting. The overall objective of the project
is to apply the PEER PBEE methodology and tools to assess the performance of
ductile RC frame buildings, which conform to current design standards.
[Full Report] [top]
Armen Der Kiureghian, UC Berkeley
Benchmarking Performance of
New RC Frames Building—3362003
Armen Der Kiureghian (UCB/F), Kazuya Fujimura (UCB/GS),
Junho Song (UCB/GS)
This project supports the PEER strategic plan by providing an advanced tool
for uncertainty and reliability analysis in OpenSees. These tools are essential
for performance-based earthquake engineering analysis and design. Analysis
options include propagation of uncertainties, sensitivity analysis, reliability
and fragility assessment, and parameter importance measures.
[Full Report] [top]
Computational Reliability Tools
for Design—4142003
Armen Der Kiureghian (UCB/F), Kazuya Fujimura (UCB/GS),
Junho Song (UCB/GS)
Develop, implement, document and apply reliability and sensitivity methods
in the OpenSees computational simulation framework.
[Full Report] top
Analytical Models for Electrical Equipment
Connected by Rigid Buses—401b
Armen Der Kiureghian (UCB/F)
This project extends previous
work on analytical modeling of the interaction effect between electrical substation
equipment connected by rigid buses.
[Full Report] top
Calibration of Basin Simulations—1A03
Thomas Henyey (USC/SCEC), Steven Day (SDSU/F), Douglas Dreger
(UCB/F),
Shawn Larsen (LLNL/O), Kim Olsen (UCSB/O), Arben Pitarka (URS Corp/I), Robert
Graves (URS Corp/I),
Jacobo Bielak (CMU/F), Antonio Fernandez (CMU/GS)
The project will foster the integration of 3D ground motion simulation methods
and results into engineering applications. We will validate 3D simulation
methods and apply them to complex geological structures, with emphasis on
urban sedimentary basins. This is collaboration between the Pacific Earthquake
Engineering (PEER) Center and the Southern California Earthquake Center (SCEC).
[Full Report] [top]
Marc Eberhard, University of Washington
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. The project will
lead to the evaluation, development and application of a variety of OPENSEES
models of column performance.
[Full Report] [top]
Foundation Loads due to Spreading Ground—3F02
Ahmed Elgamal (UCSD/F), Liangcai He (UCSD/GS)
To participate in conducting large-scale shake-table experiments in NIED Japan
on lateral-spreading liquefaction effects on piles and pile-groups.
[Full Report] [top]
3D Simulation of Seismic Ground Deformation
in OpenSees—2202003
Ahmed Elgamal (UCSD/F), Jinchi Lu (UCSD/GS), Zhaohui Yang
(UCSD/PD),
Linjun Yan (UCSD/GS)
The Y7 project is mainly focused on developing a number of computational simulation
capabilities in OpenSees and applications on 2D/3D bridge-foundation-ground
systems.
[Full Report] [top]
Seismic Qualification Requirements
for Transformer Bushings—406
Ahmed Elgamal (UCSD/F), Howard Matt (UCSD/GS)
The purpose
of this research project is to improve the qualification requirements for transformer
bushings.
[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. The objective of Year 7 research activities is to extend and leverage
to work to date completed the PEER Highway Demonstration Project by developing
a model capable of estimating the economic losses associated with trips eliminated
from the transportation network following an earthquake.
[Full Report] [top]
PEER Analysis Platform for Demand Simulation—4102003
Gregory Fenves (UCB/F), Filip Filippou (UCB/F), Frank
McKenna (UCB/O), Silvia Mazzoni (UCB/O), Michael Scott (UCB/GS), Jaesung Park
(UCB/GS), Yoshi Takahashi (Kyoto Univ/O)
The objectives of this project are to design, develop, implement, and utilize
OpenSees, a software framework for simulation of structural and geotechnical
systems.
[Full Report] [top]
Advanced RC Models - PVM Interaction—4212003
Filip Filippou (UCB/F)
Develop improved models for the interaction of axial force, shear and
bending moment in metallic members for eccentrically braced frames and
energy dissipaters and reinforced concrete members such as columns and
bridge piers under cyclic loading conditions.
[Full Report] [top]
PEER Analysis Platform for Demand
Simulation—4102003
Gregory Fenves (UCB/F), Filip Filippou (UCB/F), Frank
McKenna (UCB/O), Silvia Mazzoni (UCB/O), Michael Scott (UCB/GS), Jaesung Park
(UCB/GS), Yoshi Takahashi (Kyoto Univ/O)
The objectives of this project are to design, develop, implement, and utilize
OpenSees, a software framework for simulation of structural and geotechnical
systems.
[Full Report] [top]
Robert Graves, URS Corporation
Ground Motion Models for Fling
step—1L06
Robert Graves (URS Corporation/F), Norman Abrahamson
(PG&E/I),
Nancy Collins (URS Corp/I)
The objective of this project is to develop a parametric description of the
fling step behavior expected for dip-slip faulting using numerical simulations
of scenario earthquakes. The earthquake magnitude range is Mw 6.5-7.9. Our
goal is to use these numerical results along with existing recorded ground
motions to help guide and develop a model of fling step behavior that can be
used for engineering purposes, specifically in the NGA program.
[Full Report] [top]
Checking and Augmentation of NGA
Database—1L09
Nancy Collins (URS Corporation/I), Paul Somerville
(URS/I), Robert Graves (URS/I), Carla Willis (URS/I)
Review of the NGA database including earthquake source parameters, station
distance and directivity parameters, orientation of recorded components, and
station locations and other items as may be deemed pertinent.
[Full Report] [top]
Performance of Shallow Foundations—2272003
Tara Hutchinson (UCI/F), Geoffrey Martin (USC/F),
Barbara Chang
(UCI/GS), Prishati Raychowdhury (UCI/GS)
The goals of PEER researchers (at UCD, USC, and UCI) studying the nonlinear
behavior of shallow building foundations are to develop and test procedures
to account for this nonlinearity in performance-based design.
[Full Report] [top]
Ufuk Ince, University of Washington
Decision Making for Earthquake Mitigation—1252003
Jacqueline Meszaros (UW/F), Ufuk Ince (UW/F)
[Full Report] [top]
3D Soil Simulation Models in OpenSees—2212003
Boris Jeremic (UCD/F), Qing Liu (UCD/GS), Matthias
Preisig (UCD/GS), Zhao Cheng (UCD/GS), Ian Tucker (UCD/US)
This project forms one of the basic elements of PEER's mission in that it creates
computational tools that are used to assess the performance of the engineering
systems.
[Full Report] [top]
Supplemental SASW Work by USGS for NGA Project—1L10b
Robert Kayen (USGS/F), Eric Thompson (UNC/O), Diane
Minasian (USGS/O), Brad Carkin (USGS/O)
Spectral analysis of surface waves (SASW) testing at strong motion recording
(SMR) sites for the Next Generation Attenuation modeling (NGA) project.
[Full Report] [top]
Anne Kiremidjian, Stanford University
Impact of uncertainties in Seismic Performance
Assessment of Highway Systems—3392003
Anne Kiremidjian (Stanford/F), Ozgur Yazlali (Stanford/GS), Renee Lee
(Stanford/GS)
This project will attempt to identify the sources of uncertainty that have
the largest influence in bridge fragilities. Quantification of uncertainties
is key to the overall performance paradigm.
[Full Report] [top]
Steve Kramer, University of Washington
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)
TThe 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]
Helmut Krawinkler, Stanford University
Criteria for Performance Based Design—3382003
Helmut Krawinkler (Stanford/F), Farzin Zareian (Stanford/PD)
The global objective is to develop criteria and procedures for performance-based
design that permit direct (rather than iterative) design of various types of
structures (primarily frame and wall structures) for multiple performance objectives
associated with limit states of relevance for a subsequent rigorous performance
assessment.
[Full Report] [top]
Sashi Kunnath, University of Southern California
Simulation and Performance Models for Cyclic
Degradation Effects in RC Bridge Columns—4232003
Sashi Kunnath (UCD/F), Jon Mohle (UCD/GS)
The primary goal of this project is the development of improved material
models that incorporate cyclic degrading behavior in reinforced concrete
members. Efforts will also be directed to the development of damage models
based on material and member response information generated during the
analysis.
[Full Report] [top]
Performance of Shallow Foundations—2262003
Bruce Kutter (UCD /F), Sivapalan Gajan (UCD/GS), Jeremy
Thomas (UCD/GS)
Understanding the nonlinear behavior of shallow building foundations under
large amplitude loading (moment, shear and axial loading) is an important aspect
of performance-based earthquake engineering (PBEE).
[Full Report] [top]
Dawn Lehman, University of Washington
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]
Laura Lowes, University of Washington
Development of EDP-DM-DV Relationships for RC
Building Components—3422003
Laura Lowes (UW/F), Nilanjan Mitra (UW/GS)
The proposed research will develop EDP-DM-DV models for reinforced concrete
beam-column joints. One set of models will enable the use of engineering
demand parameters (EDPs), which are the traditional output of structural
analysis, to predict component-specific damage measures (DMs). A second
set of models will link component damage measures to repair techniques
and provide a method for computing total repair effort. Total repair effort
is considered a decision variable (DV) that is meaningful to building owners.
[Full Report] [top]
Integration of OpenSees and
NEES—4192003
Stephen Mahin (UCB/F), Andreas Schellenberg (UCB/GS)
OpenSees provides a rich set of highly capable modules that support the
nonlinear static and dynamic analysis of complex structural systems.
[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
Evaluation and Application of
Concrete Tilt-up Assessment Methodologies—509
James Malley (Degenkolb/F), Tim Graf (Degenkolb/I), Jack Hseuh (Degenkolb/I)
The project is a key step in investigating the practical application and potential
of performance-based seismic assessment methods. As such, the project will
lead to the wider application of seismic and structural engineering procedures
that use these state-of-the-art techniques.
[Full Report] [top]
Geoffrey Martin, University of Southern California
Performance of Shallow Foundations—2272003
Tara Hutchinson (UCI/F), Geoffrey Martin (USC/F), Barbara Chang (UCI/GS),
Prishati Raychowdhury (UCI/GS)
The goals of PEER researchers (at UCD, USC, and UCI) studying the nonlinear
behavior of shallow building foundations are to develop and test procedures
to account for this nonlinearity in performance-based design.
[Full Report] [top]
Peter May, University of Washington
Regulatory System Implications of Performance-Based
Regulation—1232003
Peter May (UW/Faculty), Chris Koski (UW/GS)
This research seeks to identify implementation issues that have arisen
for other performance- or risk-based regulatory approaches, and to draw
lessons for the performance-based approach to earthquake engineering.
[Full Report] [top]
Jacqueline Meszaros, University of Washington
Decision Making for Earthquake Mitigation—1252003
Jacqueline Meszaros (UW/F), Ufuk Ince (UW/F)
The model and associated work explore barriers to and options for disseminating
of the PBEE technology to owners.
[Full Report] [top]
Eduardo Miranda, Stanford University
Impact of Correlations and Intensity measure
in Building Loss Assessment—1182003
Eduardo Miranda (Stanford/F), Hesameddin Aslani (Stanford/GS)
The main objective of this project is to develop ways to estimate and to account
for the correlation between losses in individual components.
[Full Report] [top]
US-Japan International Workshop on Performance-Based
Earthquake Engrg—3162003
Jack Moehle (UCB/F)
The goal of this project is to enhance at an international level the exchange
of the latest research and professional practice information on performance-based
earthquake engineering.
[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]
James Moore, University of Southern California
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. The objective of Year 7 research activities is to extend and leverage
to work to date completed the PEER Highway Demonstration Project by developing
a model capable of estimating the economic losses associated with trips eliminated
from the transportation network following an earthquake.
[Full Report] [top]
Modeling of Progressive Collapse in Reinforced
Concrete Structural—3432003
Khalid Mosalam (UCB/F), Mohamed Talaat (UCB/GS)
Model the initiation and progression of collapse in reinforced concrete framed
structures.
[Full Report] [top]
Building loss Modeling and Benchmarking EDP
to DV—1222003
James Beck (Caltech/F), Keith Porter (Caltech/F), Judith
Mitrani (Caltech/GS)
To evaluate the seismic performance of benchmark buildings designed to current
code (IBC 200x) in terms of PEER’s decision variables (DVs: repair costs,
fatalities, and repair duration, or “dollars, deaths, and downtime”)
and to package for practitioner use relationships between structural response
(PEER’s engineering demand parameters, or EDPs) and DVs.
[Full Report] [top]
Coordinate PEER Methodology Testbed Research—3262003
Keith Porter (Caltech/F), John Hall (Caltech/F)
estbeds are required to ensure that PEER’s methodology is elucidated from
end to end, and illustrated for the benefit of PEER researchers and practitioners.
This coordination project is necessary to ensure that individual testbed projects
are effectively integrated. Testbed coordinator also offers an overview of all
the testbeds in a single researcher.
[Full Report] [top]
Next Generation Attenuation (NGA) Models,
WUS Shallow Crustal
Earthquake —1L01
Maurice Power (Geomatrix/I), Robert Youngs (Geomatrix/I), I.M. Idriss
(UCD/F), Kenneth Cambell (ABS Consulting/I), Yousef Bozorgnia (ATS/I)
The overall
goal of project 1L Series is to develop Next-Generation Ground Motion
Attenuation (NGA) Models for shallow crustal earthquakes in the western United
States.
[Full Report] [top]
Workshop on Uncertainties in Nonlinear Soil Properties
and impact on modeling response—2B03
Michael Riemer (UCB/F), Ellen Rathje (U.Texas/F),
Donald Anderson
(CH2Mhill/I), Cliff Roblee (Caltrans/I), Lawrence Chiu (CSUS/O)
This project supplements funding for an NSF Workshop focusing on identifying
the key sources of uncertainty surrounding the non-linear dynamic properties
of soils, and evaluating the role of this uncertainty in the context of other
factors in performing Site Response Analysis (SRA).
[Full Report] [top]
Jose I. Restrepo, UC San Diego
Performance Evaluation of Gypsum
Wallboard Partitions—5322003
José Restrepo (UCSD/F), Anna Lang (UCSD/GS)
This project will continue to continue to develop data and models to characterize
the performance of gypsum wallboard partitions under imposed drifts, of the type
common to modern office, hotel, and laboratory buildings.
[Full Report] top
Improved Assessment of Liquefaction-Induced Lateral
Spreading Hazard—3G02
Raymond Seed (UCB/F), Allison Faris (UCB/GS)
The goal of this research effort is to use the field case history database
developed in previous year’s efforts regarding liquefaction-induced lateral
spreading, as well as new relationships developed by PEER-supported laboratory
testing programs to better define post-liquefaction strain and displacement
behaviors, to develop improved engineering methods for estimation/prediction
of lateral spreading deformations.
[Full Report] [top]
Casualty and Injury Modeling—1272003
Kimberly Shoaf (UCLA/F), Hope Seligson (ABS Consulting/I)
The objective of this project is to provide mortality and morbidity (death and
injury) rates for non-ductile concrete frame structures for a minimum of three
damage states.
[Full Report] top
Kimberly Shoaf, UC Los Angeles
Casualty and Injury Modeling—1272003
Kimberly Shoaf (UCLA /F), Hope Seligson (ABS
Consulting/I)
The objective of this project is to provide mortality and morbidity (death
and injury) rates for non-ductile concrete frame structures for a minimum of
three damage states.
[Full Report] [top]
NGA Data Sets—1L02
Walter Silva (PE&A/I)
Configure the PEER Strong
Motion Data Set for use in developing empirical attenuation relations.
[Full Report] [top]
1-D Rock Motion Simulations—1L08
Walter Silva (PE&A/I)
Provide finite fault simulations of strong ground motions to guide in developing
empirical attenuation relations.
[Full Report] [top]
Paul Somerville, Stanford University
Probabillstic vector Valued Ground Motion Intensity
measures (PEER-SCEC Project)—3282003
Allin Cornell (Stanford/F), Paul Somerville (Stanford/F),
Jack Baker (Stanford/GS)
Develop and test the use of a vector-valued Intensity Measure in the Van Nuys
Testbed context. By working jointly the investigators will address both the
structural and seismological aspects of the vector-valued IM approach.
[Full Report] [top]
Checking and Augmentation of NGA
Database—1L09
Nancy Collins (URS Corporation/I), Paul Somerville
(URS/I), Robert Graves (URS/I), Carla Willis (URS/I)
Review of the NGA database including earthquake source parameters, station
distance and directivity parameters, orientation of recorded components, and
station locations and other items as may be deemed pertinent.
[Full Report] [top]
Supplemental USGS Work for NGA Project—1L10
Paul Spudich (USGS/F), Jack Boatright (USGS/O),
Rufus Catchings (USGS/O), Walter Mooney (USGS/O), Christopher Stephens (USGS/O),
Shane Detweiler
(USGS/O), Clare Steedman (USGS/O), Mark Goldman (USGS/O), Luke Blair (USGS/O),
Linda Seekins (USGS/O), Fabio Perosi (USGS/O)
This project contributes directly to the strong-motion data (C.) and meta-data
(B.) in the PEER/NGA database, and to the development of physically appropriate
attenuation relations (A.) for the regressions that form the heart of NGA.
[Full Report] [top]
John Stanton, University of Washington
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
Archiving & Web Dissemination of Geotechnical
Data—2L02
J. Carl Stepp (COSMOS/O), Jennifer Swift (USC/F), Charles
Real (CGS/I), Diane Vaughn (CGS/I), Jean Benoit (UNH/F), Daniel Ponti (USGS/I),
Mindy Squibb
(UCSB/I), Joe Futrelle (UI NCSA/GS), Joseph Sun (PG&E/I), John Bobbitt
(POSC/I), Loren Turner (Caltrans/I), Cliff Roblee (Caltrans/I), Paul
Grimes (COSMOS/O), Alexei Peters (Caltrans-Farallon Graphics/O), Shahzad
Tiwana (USC/GS), Dennis Wuthrich (Caltrans-Farallon Graphics/O), Jianping
Hu (USC/GS), Sam Mansukhani (FHWA/I), Thomas Lefchik (FHWA/I)
Develop a Pilot System for web-based dissemination of linked geotechnical database
archives, develop and implementation plan, and plan and conduct a workshop
to review and obtain input and consensus of the geotechnical community.
[Full Report] [top]
Jonathan Stewart, UC Los Angeles
CPT Testing of Deposits in Imperial Valley—3D04
Jonathan Stewart (UCLA/F)
This project consisted of retesting of liquefaction and non-liquefaction
field case histories in the Imperial Valley with the cone penetration test
(CPT). The River Park and Heber Road sites were originally tested using a mechanical
cone following the 1979 Imperial Valley Earthquake (Bennett et al., 1981; Youd & Bennett,
1983). These two sites are rich in information because they have experienced
several earthquakes in recent history, have been subjected to moderate levels
of strong ground shaking, the liquefiable soils have appreciable fines content,
and the sites contain a number of non-liquefied data points.
[Full Report] [top]
Soil Structure Interacatioin Effects and their
Influence on Input Ground Motions—2392003
Jonathan Stewart (UCLA/F), Ertugrul Taciroglu
(UCLA/F), Christine
Goulet (UCLA/GS)
The objective of this project is to implement the performance-based earthquake
engineering (PBEE) methodology being developed by PEER for a particular building
structure.
[Full Report] [top]
Bozidar Stojadinovic, UC Berkeley
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
Jennifer Swift, University of Southern California
Archiving & Web Dissemination of Geotechnical
Data—2L02
J. Carl Stepp (COSMOS/O), Jennifer Swift (USC/F), Charles
Real (CGS/I), Diane Vaughn (CGS/I), Jean Benoit (UNH/F), Daniel Ponti (USGS/I),
Mindy Squibb (UCSB/I), Joe Futrelle (UI NCSA/GS), Joseph Sun (PG&E/I),
John Bobbitt (POSC/I), Loren Turner (Caltrans/I), Cliff Roblee (Caltrans/I),
Paul Grimes (COSMOS/O), Alexei Peters (Caltrans-Farallon Graphics/O), Shahzad
Tiwana (USC/GS), Dennis Wuthrich (Caltrans-Farallon Graphics/O), Jianping Hu
(USC/GS), Sam Mansukhani (FHWA/I), Thomas Lefchik (FHWA/I)
Develop a Pilot System for web-based dissemination of linked geotechnical
database archives, develop and implementation plan, and plan and conduct a
workshop to review and obtain input and consensus of the geotechnical community.
[Full Report] [top]
Ertugul Taciroglu, UC Los Angeles
Soil Structure Interacatioin
Effects and their Influence on Input Ground Motions—2392003
Jonathan Stewart (UCLA/F), Ertugrul
Taciroglu (UCLA/F), Christine
Goulet (UCLA/GS)
The objective of this project is to implement the performance-based earthquake
engineering (PBEE) methodology being developed by PEER for a particular building
structure.
[Full Report] [top]
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.
[Full Report] [top]
Examining Site Response issues for NGA—2M01
Z. Wang (Geomatrix, I), C.C. Chin (Geomatrix/I),
Maury Power
(Geomatrix/I)
This project will support the NGA project (lifeline) in resolving the modeling
issues that will be used to develop the site amplification functions needed
by NGA attenuation relationship developers in their regression analyses of
empirical ground motion data.
[Full Report] [top]
NGA: Site Condition Metadata from Geology—1L05
C. Wills (CDC-CGS/O), K. Clahan (CDC-CGS/O)
Provide geology-based estimates of shear-wave velocity at all strong-motion
recording sites in the PEER-NGA database.
[Full Report] [top]
Next Generation Attenuation
(NGA) Models, WUS Shallow Crustal
Earthquake —1L01
Maurice Power (Geomatrix/I), Robert Youngs (Geomatrix/I),
I.M. Idriss
(UCD/F), Kenneth Cambell (ABS Consulting/I), Yousef Bozorgnia (ATS/I)
The overall goal of project 1L Series is to develop Next-Generation Ground
Motion Attenuation (NGA) Models for shallow crustal earthquakes in the western
United States.
[Full Report] [top]
Statistical Methods for Attenuation Modeling—1L07a
Robert Youngs (Geomatrix/I)
This project is in support of PEER Lifelines project “Next Generation
Attenuation Models (NGA)”. NGA is a comprehensive, multidisciplinary
project to formulate the next generation of attenuation relations.
[Full Report] [top]