PEER Reports

PEER Reports

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...

New PEER Report 2018/01: “PEER Annual Report 2017 – 2018”

July 9, 2018

PEER has just published Report No. 2018/01: “PEER Annual Report 2017 – 2018.” This report was prepared by PEER staff, led by Khalid Mosalam, Amarnath Kasalanati and Selim Günay. It contains a summary of research, educational and outreach activities at the PEER Center from July 2017 to June 2018.

PEER Annual Report 2017-2018

Executive Summary

The Pacific Earthquake Engineering Research Center (PEER) is a multi-institutional research and...

New PEER Report 2019/01: "Flow-Failure Case History of the Las Palmas, Chile, Tailings Dam"

March 12, 2019

PEER has just published Report No. 2019/01: “Flow-Failure Case History of the Las Palmas, Chile, Tailings Dam." It was authored by R.E.S. Moss, T.R. Gebhart, D.J. Frost, and C. Ledezma.

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Abstract

This report documents the flow failure of the Las Palmas tailings dam that was induced by the 27 February 2010 Maule Chile M8.8 earthquake. The Las Palmas site is located in Central Chile in Region VII near the...

New PEER Report 2018/04: "Capturing Directivity Effects in the Mean and Aleatory Variability of the NGA-West2 Ground-Motion Prediction Equations"

January 11, 2019

PEER has just published Report No. 2018/04: “Capturing Directivity Effects in the Mean and Aleatory Variability of the NGA-West2 Ground-Motion Prediction Equations.” It was authored by Jennie A. Watson-Lamprey, Slate Geotechnical Consultants.

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Abstract

We expect there to be locations around a rupture that experience both positive and negative directivity effects more than others. The concept was to develop...