Pacific Earthquake Engineering Research Center

The PEER mission is to develop, validate, and disseminate performance-based seismic design technologies for buildings and infrastructure to meet the diverse economic and safety needs of owners and society.

Lifelines & NGL                      
                    The goal of the PEER Lifelines program is to improve seismic safety and reliability of lifeline systems.
                    The projects in this program are primarily user-driven research projects,
                    with strong collaboration among sponsoring lifelines organizations and PEER researchers.
                    They range from engineering characterization of ground motions, to local soil response, 
                    to response of bridge structures, to performance of electric substation equipment. 
                    The lifelines research projects are organized into eight topics as shown in the following chart. Lifelines & NGL
                       Tsunami Research Program PEER’s tsunami research program is to develop an effective methodology 
                       for damage analyses for critical structures and lifelines
                       e.g. nuclear and fossil power plants, liquefied natural gas and oil storage facilities, 
                       civilian and military ports, emergency tsunami shelters, transportation corridors including coastal bridges,
                       and important public facilities (fire and police stations, hospitals, and schools). Tsunami
NGA-West 2
                       The PEER NGA West project resulted in a major improvement in the prediction of ground motions in the western United States.
                       The NGA West models provide much more robust and reliable estimates of ground motion than the previous generation of 
                       attenuation models developed in 1990s and early 2000s.
                       NGA-West 2
                       The objective of NGA-East is to develop a new ground motion characterization (GMC) model for the Central
                       and Eastern North-American (CENA) region. The GMC model consists in a set of new ground motion prediction equations (GMPEs) 
                       for median and standard deviation of ground motions (GMs) and their associated weights in the logic-trees for use in
                       probabilistic seismic hazard analyses (PSHA). NGA-East
Tall Buildings Initiative  
                       The turn of the last century saw a surge in the construction of high-rise buildings. The surge created a demand
                       for performance-based approaches to enable construction using new framing systems rising to heights outside the
                       range of building code prescriptive provisions. The Pacific Earthquake Engineering Research Center (PEER) responded 
                       to this need by leading an initiative to develop design criteria that will ensure safe and usable tall buildings
                       following future earthquakes. Tall Buildings Initiative
Transportation Systems
                       The purpose of the PEER TSRP is to reduce the impacts of earthquakes on California’s transportation systems, 
                       including highways and bridges, port facilities, high speed rail, and airports. 
                       We expect that the research will utilize and extend PEER performance based earthquake engineering methodologies,
                       integrating fundamental knowledge, enabling technologies, and systems. We further expect that the research 
                       program will integrate seismological, geotechnical, structural, and socio-economical aspects of earthquake engineering,
                       and involve computational, experimental and theoretical investigations. Transportation Systems

PEER Ground Motion Database

The web-based Pacific Earthquake Engineering Research Center (PEER) ground motion database provides tools for searching, selecting and downloading ground motion data.


The Open System for Earthquake Engineering Simulation (OpenSees) is a software framework for simulating the seismic response of structural and geotechnical systems.


OpenFresco (the Open-source Framework for Experimental Setup and Control) is an environment-independent software framework, that connects finite element models with control and data acquisition systems in laboratories to facilitate hybrid simulation of structural and geotechnical systems.


BridgePBEE is a PC-based graphical pre- and post-processor (user-interface) for conducting Performance-Based Earthquake Engineering (PBEE) studies for bridge-ground systems (2-span single column).