Non-linear site response analysis with accurate strength respresentation in the large strain range
Year: 2024
Type: article
Abstract: 1-D site response analysis of horizontally layered soil profiles is commonly used to generate site-specific earthquake ground motions. While there are many existing methods, both equivalent-linear and nonlinear type, to simulate the response in small to medium strain range, application to large strain range is often considered questionable. The accurate representation of soil strength in the selected nonlinear model is the key to simulate response beyond the medium strain range. This paper presents a new analytical solution by combining a recently proposed double hyperbolic model with Mohr-Coulomb strength model. The paper describes the mathematical formulation of the new model and demonstrates a practical implementation using DYNES3D, an open-source site response analysis tool.
Authors: Shubham Trivedi, Yuko Kawakami, Boya Yin, Aslan S. Hokmabadi
Institutions: Arup Group (United States), Arup Group (United Kingdom)
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4399712540