PEER Reports

PEER Reports

PEER Report 2025/05: "Open-source Seismic Risk Assessment (OpenSRA) Software Development"

February 19, 2026

PEER has published Report No. 2025/05: "Open-source Seismic Risk Assessment (OpenSRA) Software Development." The report was authored by Barry Zheng, Micaela Largent (Slate Geotechnical Consultants); Jennie Watson-Lamprey (CODA SEISMIC).

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project conducted by the Pacific Earthquake Engineering Research Center (PEER) with the Lawrence Berkeley National Laboratory (LBNL), and funded by the California Energy Commission (CEC). The overall project is titled “...

PEER Report 2025/04: "Developing Software to Assess the Seismic Risk of Natural Gas Infrastructure: OpenSRA"

February 19, 2026

PEER has published Report No. 2025/04: "Developing Software to Assess the Seismic Risk of Natural Gas Infrastructure: OpenSRA." The report was authored by Micaela Largent, Barry Zheng (Slate Geotechnical Consultants); Jonathan Bray, Norm Abrahamson (University of California, Berkeley); and Jennie Watson-Lamprey (CODA SEISMIC).

This report summarizes the methods and findings of a multi-year, multi-disciplinary project conducted by the Pacific Earthquake Engineering Research Center (PEER) with the Lawrence Berkeley National Laboratory (LBNL) and funded by the California...

Open-source Seismic Risk Assessment (OpenSRA) Software Development, PEER Report 2025-05

Barry Zheng
Micaela Largent
Jennie Watson-Lamprey
2025

A Report for the “Performance-based Earthquake Engineering Assessment Tool for Natural Gas Storage and Pipeline Systems” Project.

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project conducted by the Pacific Earthquake Engineering Research Center (PEER) with the Lawrence Berkeley National Laboratory (LBNL) and funded by the California Energy Commission (CEC). The overall project is titled “Performance-based Earthquake Engineering Assessment Tool for Natural Gas Storage and Pipeline Systems” henceforth...

Developing Software to Assess the Seismic Risk of Natural Gas Infrastructure: OpenSRA, PEER Report 2025-04

Micaela Largent
Jonathan Bray
Jennie Watson-Lamprey
Norman Abrahamson
Barry Zheng
2025

A Report for the “Performance-based Earthquake Engineering Assessment Tool for Natural Gas Storage and Pipeline Systems” Project.

This report summarizes the methods and findings of a multi-year, multi-disciplinary project conducted by the Pacific Earthquake Engineering Research Center (PEER) with the Lawrence Berkeley National Laboratory (LBNL) and funded by the California Energy Commission (CEC). The overall project is titled “Performance-based Earthquake Engineering Assessment Tool for Natural Gas Storage and Pipeline Systems,” henceforth referred to as the “OpenSRA Project.”...

The 21st Working Conference of the IFIP Working Group 7.5 on Reliability and Optimization of Structural Systems (IFIP WG7.5 2024) , PEER Report 2024-10

Ziqi Wang
Jungho Kim
2024

These are the proceedings of the twenty-first working conference of the International Federation of Information Processing (IFIP) Working Group 7.5 on Reliability and Optimization of Structural Systems, which took place at the University of California, Berkeley, USA, on August 19–21, 2024. This volume contains 15 selected papers from the 20 presentations delivered at the conference.

The purpose of the WG7.5 Working Group is to promote modern theories and methods of structural and system reliability and optimization, to stimulate research, development, and applications in these areas...

PEER Report 2025/03: "Ground Improvement-Based Protection of Transportation Infrastructure: Validation of Performance Based Engineering via Centrifuge Shake Table Testing"

January 14, 2026

PEER has published Report No. 2025/03: "Ground Improvement-Based Protection of Transportation Infrastructure: Validation of Performance Based Engineering via Centrifuge Shake Table Testing." It was authored by Jeffrey T. Newgard, Tara C. Hutchinson, John S. McCartney, Department of Structural Engineering at the University of California San Diego.

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Ground Improvement-Based Protection of Transportation Infrastructure: Validation of Performance Based Engineering via Centrifuge Shake Table Testing, PEER Report 2025-03

Jeffrey T. Newgard
Tara C. Hutchinson
John S. McCartney
2025

This report presents a centrifuge modeling investigation into the performance of rocking footings supported by various ground improvement strategies with the aim of controlling their performance during earthquake shaking. The rocking footings investigated in this study are modeled after the shallow foundations supporting a two-span highway bridge at the crossing of Hwy 108 and Sanguinetti Road in Sonora, California, which also served as the archetype bridge in previous centrifuge studies on rocking footings. These earlier studies confirmed that under-designed foundations re-center reliably...

Towards Deep Learning-Based Structural Response Prediction and Ground Motion Reconstruction, PEER Report 2025-01

Khalid M. Mosalam
Issac K.T. Pang
Selim Günay
2025

This research presents a novel methodology that uses Temporal Convolutional Networks (TCNs), a state-of-the-art deep learning architecture, for predicting the time history of structural responses to seismic events. By leveraging accelerometer data from instrumented buildings, the proposed approach complements traditional structural analysis models, offering a computationally efficient alternative to nonlinear time history analysis. The methodology is validated across a broad spectrum of structural scenarios, including buildings with pronounced higher-mode effects and those exhibiting both...

New PEER Publication 2019/05: "Expected Earthquake Performance of Buildings Designed to the California Building Code"

July 30, 2019
PEER has just issued Publication No. 2019/05 titled “Expected Earthquake Performance of Buildings Designed to the California Building Code.”

Influence of Vertical Ground Motion on Bridges Isolated with Spherical Sliding Bearings, PEER Report 2019-08

Rushil Mojidra
Keri L. Ryan
2019

The motivation for this project developed from testing of a full scale building isolated with triple friction pendulum bearings on the E-defense shake table in Japan. The test demonstrated experimentally that the vertical component of ground motion can amplify both the base shear and the story acceleration in the isolated building. Vertical shaking introduced high-frequency variation in the axial force of the bearings, and, consequently, a high-frequency component in the bearing lateral force, which excited higher structural modes in the building. Since vertical bridges are flexible in the...