Developing Software to Assess the Seismic Risk of Natural Gas Infrastructure: OpenSRA
Description:
Owners and regulators require performance-based earthquake engineering (PBEE) assessment procedures to proactively and cost-effectively make risk-informed decisions regarding the seismic performance of their infrastructure. An efficient PBEE tool is required to assess the potential performance of their system during an earthquake, to identify components that are most vulnerable, and to mitigate components that have the highest risk. This presentation will provide an overview of the 1) research performed on seismic demand and capacity models, laboratory testing, and finite element modeling, and 2) implemented findings from the research into a new open-source seismic risk analysis program called OpenSRA.
The overview of OpenSRA will include details on the easy-to-use graphical user interface, the state-of-the-art models addressing different seismic demands (e.g., ground shaking, fault rupture, liquefaction, and landslide), and the new fragility models for buried pipelines, wells, caprocks, and surficial elements. The graphical user interface provides a fully interactive map canvas for visualization of the inputs (e.g., infrastructure, ground motions, GIS data) and outputs (probability of failure) over different basemaps of California. The software allows end-users to select the analysis models according to the resolution of the available data (i.e., statewide, regional, or site-specific) and adjust uncertainties in the model parameters to study the risk. Finally, OpenSRA implements an efficient algorithm called polynomial chaos expansion for risk analysis that can be orders of magnitude faster than traditional analysis (i.e. Monte Carlo sampling). Overall, OpenSRA provides the industry an efficient program to understand the seismic risk of natural gas infrastructure and an environment easily adaptable to other types of infrastructure and natural hazards.
Session: Regional-Scale Hazard, Risk and Loss Assessments - II
Type: Oral
Date: 5/2/2024
Presentation Time: 02:30 PM (local time)
Presenting Author: Micaela
Student Presenter: No
Invited Presentation: Yes
Authors
Barry Zheng bzheng@slategeotech.com Slate Geotechnical Consultants |
Micaela Largent Presenting Author Corresponding Author mlargent@slategeotech.com Slate Geotechnical Consultants |
Jennie Watson-Lamprey jwatsonlamprey@slategeotech.com Slate Geotechnical Consultants |
Jonathan Bray jonbray@berkeley.edu University of California, Berkeley |
Norman Abrahamson abrahamson@berkeley.edu University of California, Berkeley |
Stevan Gavrilovic gavrilovic@berkeley.edu SimCenter, UC Berkeley |
Jonny Rutqvist jrutqvist@lbl.gov Lawrence Berkeley National Laboratory |
Tara Hutchinson tahutchinson@eng.ucsd.edu University of California, San Diego |
David McCallen dbmccallen@lbl.gov University of Nevada, Reno |
Kenichi Soga soga@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Steve Thompson thompson@lettisci.com LCI, Walnut Creek, California, United States |
Thomas O'Rourke tdo1@cornell.edu Cornell University, Ithaca, New York, United States |
Chris Bain cbain12@gmail.com GEI Consultants, Oakland, California, United States |
Daniel Hutabarat dhutabarat@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Elide Pantoli elide.pantoli@gmail.com WTW, Denver, Colorado, United States |
Sherif Elfass elfass@unr.edu University of Nevada, Reno, Reno, Nevada, United States |
Scott Lindvall lindvall@lettisci.com LCI, Valencia, California, United States |
Tsubasa Sasaki tsubasasasaki@lbl.gov Lawrence Berkeley National Laboratory, Berkeley, California, United States |
Yingqi Zhang yqzhang@lbl.gov Lawrence Berkeley National Laboratory, Berkeley, California, United States |
Keurfon Luu keurfonluu@lbl.gov Lawrence Berkeley National Laboratory, Berkeley, California, United States |
Preston Jordan pdjordan@lbl.gov Lawrence Berkeley National Laboratory, Berkeley, California, United States |
Bill Foxall bfoxall@lbl.gov Lawrence Berkeley National Laboratory, Berkeley, California, United States |
Peter Hubbard phubbard@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
James Wang james.ccw@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Developing Software to Assess the Seismic Risk of Natural Gas Infrastructure: OpenSRA
Category
Regional-Scale Hazard, Risk and Loss Assessments