PEER Reports

PEER Reports

New PEER Report 2020/03: "NGA-Subduction Global Ground-Motion Models with Regional Adjustment Factors"

August 18, 2020

PEER has just published Report No. 2020/03: "NGA-Subduction Global Ground-Motion Models with Regional Adjustment Factors." It was authored by Grace A. Parker, formerly of UCLA and now at the U.S. Geological Survey; Jonathan P. Stewart, University of California, Los Angeles; David M. Boore, Geophysicist (Emeritus, formerly of the U.S. Geological Survey) Los Altos, California; Gail M. Atkinson, Western University London, Canada; Bezhad Hassani, BC Hydro, Canada.

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New PEER Report 2020/02: "Data Resources for NGA-Subduction Project"

March 16, 2020

PEER has just published Report No. 2020/02: "Data Resources for NGA-Subduction Project." Chapters of the report have multiple co-authors from various institutions. The project Principal Investigator is Yousef Bozorgnia and the report Editor is Jonathan P. Stewart, both from UC Los Angeles.

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Abstract

The NGA-Subduction (NGA-Sub) project is one in a series of Next Generation Attenuation (NGA) projects...

New PEER Report 2019/09: "Seismic Behavior of Special Concentric Braced Frames under Short- and Long-Duration Ground Motions"

March 9, 2020

PEER has just published (December 2019) Report No. 2019/09: "Seismic Behavior of Special Concentric Braced Frames under Short- and Long-Duration Ground Motions." It was authored by Ali Hammad and Mohamed A. Moustafa, University of Nevada, Reno.

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Abstract

Over the past decade, several long-duration subduction earthquakes took place in different locations around the world, e.g., Chile in 2010, Japan in 2011,...

New PEER Report 2019/08: "Influence of Vertical Ground Motion on Bridges Isolated with Spherical Sliding Bearings"

March 9, 2020

PEER has just published (December 2019) Report No. 2019/08: "Influence of Vertical Ground Motion on Bridges Isolated with Spherical Sliding Bearings." It was authored by Rushil Mojidra and Keri L. Ryan, University of Nevada, Reno.

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Abstract

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....

New PEER Report 2019/07: "PEER Hub ImageNet (Ø-Net): A Large-Scale Multi-Attribute Benchmark Dataset of Structural Images"

January 10, 2020

PEER has just published Report No. 2019/07: "PEER Hub ImageNet (Ø-Net): A Large-Scale Multi-Attribute Benchmark Dataset of Structural Images." It was authored by Yuqing Gao and Khalid M. Mosalam.

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Abstract

In this data explosion epoch, data-driven structural health monitoring (SHM) and rapid damage assessment after natural hazards have become of great interest in civil engineering research. This report...

New PEER Report 2019/06: "Fluid-Structure Interaction and Python-Scripting Capabilities in OpenSees"

October 4, 2019

PEER has just published Report No. 2019/06: "Fluid-Structure Interaction and Python-Scripting Capabilities in OpenSees." It was authored by Minjie Zhu and Michael H. Scott, School of Civil and Construction Engineering Oregon State University

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Abstract

Building upon recent advances in OpenSees, the goals of this project are to expand the framework’s Python scripting capabilities and to further develop its...

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.” The brochure was authored by Grace S. Kang, Sifat Muin, Jorge Archbold, Bitanoosh Woods, and Khalid Mosalam. This publication is issued jointly with the California Alfred E. Alquist Seismic Safety...

New PEER Report 2019/04: "Aftershock Seismic Vulnerability and Time-Dependent Risk Assessment of Bridges"

June 5, 2019

PEER has just published Report No. 2019/04: "Aftershock Seismic Vulnerability and Time-Dependent Risk Assessment of Bridges." It was authored by Sujith Mangalathu, Mehrdad Shokrabadi and Henry V. Burton.

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Abstract

The time-dependent seismic risk of bridges is assessed while account accounting for the effect of aftershocks and the uncertainty in the damage state after a mainshock event. To achieve this, a...

New PEER Report 2019/03: "Ground-Motion Directivity Modeling for Seismic Hazard Applications"

May 16, 2019

PEER has just published Report No. 2019/03: "Ground-Motion Directivity Modeling for Seismic Hazard Applications." It was authored by Jennifer L. Donahue, Jonathan P. Stewart, Nicolas Gregor and Yousef Bozorgnia. Review Panel: Jonathan D. Bray, Stephen A. Mahin, I. M. Idriss, Robert W. Graves and Tom Shantz.

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Executive Summary:

We reviewed five models for modifying the natural log mean and within-event...

New PEER Report 2019/02: "Direct-Finite-Element Method for Nonlinear Earthquake Analysis of Concrete Dams Including Dam–Water–Foundation Rock Interaction"

May 15, 2019

PEER has just published Report No. 2019/02: "Direct-Finite-Element Method for Nonlinear Earthquake Analysis of Concrete Dams Including Dam–Water–Foundation Rock Interaction." It was authored by Arnkjell Løkke and Anil Chopra.

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Abstract

Evaluating the seismic performance of concrete dams requires nonlinear dynamic analysis of two- or three-dimensional dam–water–foundation rock systems that include all the...