The EE-UQ Tool is an application to determine the response, including UQ, of a structure to an earthquake excitation. The tool focuses on the structural model and will evolve to include soil-structure interaction models imposing boundary conditions necessary to impart the earthquake motion. The application is focused on quantifying the uncertainties in the predicted response, given the that the properties of the buildings and the earthquake events are not known exactly, and that the simulation software and the user make simplifying assumptions in the numerical modeling of that structure. In the application, the user is required to characterize the uncertainties in the input. The application will, after utilizing the selected sampling method, provide information that characterizes the uncertainties in the response measures.
The computations to make these determinations can be prohibitively expensive. To overcome this impedement the user has the option to perform the computations on the Frontera supercomputer. Frontera is located at the Texas Advanced Computing Center and made available to the user through NHERI DesignSafe, the cyberinfrastructure provider for the distributed NSF funded Natural Hazards in Engineering Research Infrastructure (NHERI) facility. The computations are performed in a workflow application. That is, the numerical simulations are actually performed by a number of different applications. The EE-UQ backend software runs these different applications for the user, taking the outputs from some programs and providing them as inputs to others. The design of the EE-UQ application is such that researchers are able to modify the backend application to utilize their own application in the workflow computations. This will ensure researchers are not limited to using the default applications we provide and will be enthused to provide their own applications for others to use.
To help expand the workflow capabilities with your contributions, contact NHERI-SimCenter@berkeley.edu.
Read the EE-UQ Application Summary (V4.1).
Live Expert Tips: Dec 19, 2023
Multi-fidelity Monte Carlo simulation for efficient seismic risk analysis using EE-UQ
Dr. Sang-ri Yi, Research Engineer, UC Berkeley
Live Expert Tips: May 6, 2022
How to Develop and Deploy Surrogate Models for Structural Response Prediction in EE-UQ
Kuanshi Zhong Postdoctoral Researcher, Stanford University
Live Expert Tips: October 29, 2021
Ground Motion Selection and Scaling for Nonlinear
Time History Analysis in EE-UQ
Kuanshi Zhong Postdoctoral Researcher, Stanford University
Tool Training Workshop: June 17-19, 2020
EE-UQ Part 1: An overview of the SimCenter, a description of the research and educational applications, and an introduction to EE-UQ
EE-UQ Part 2: Ground Motions in EE-UQ; stochastic models available in EE-UQ; record selection and scaling; a brief introduction to site response
EE-UQ Part 3: A presentation of the s3hark module in EE-UQ that provides ground motion simulation using the finite element method
Desktop App
Downloadable app that performs simulations locally or on DesignSafe computing resource
Web Portal
Web portal app that performs simulations on DesignSafe computing resources.
How to cite:
Frank McKenna, Kuanshi Zhong, Michael Gardner, Adam Zsarnoczay, Sang-ri Yi, Aakash Bangalore Satish, Charles Wang, Amin Pakzad, Pedro Arduino, & Wael Elhaddad. (2024). NHERI-SimCenter/EE-UQ: Version 4.1.0 (v4.1.0). Zenodo. https://doi.org/10.5281/zenodo.13865428
Deierlein, G.G., McKenna, F., et al. (2020). A Cloud-Enabled Application Framework for Simulating Regional-Scale Impacts of Natural Hazards on the Built Environment. Frontiers in Built Environment. 6, 196. doi: 10.3389/fbuil.2020.558706.
