Multiphase wavefield inversion methodology for seismic analysis of soil-structure interaction systems

G Li, Y Xue, R Wang, H Zhang, Z Dong, D Yu - Soil Dynamics and …, 2023 - Elsevier
Currently available inversion methods for providing seismic excitation for soil–structure
interaction (SSI) systems regard all ground motions as the body wave component and invert …

On the reconstruction of the near-surface seismic motion

B Guidio, H Goh, LF Kallivokas, C Jeong - Soil Dynamics and Earthquake …, 2024 - Elsevier
Assessing the built environment's seismic risk relies increasingly on numerical simulations
of the response of infrastructure components to seismic motion. Since forecasting …

Convolutional neural network for identifying effective seismic force at a DRM layer for rapid reconstruction of SH ground motions

S Maharjan, B Guidio, C Jeong - Earthquake Engineering & …, 2024 - Wiley Online Library
We introduce a novel data‐informed convolutional neural network (CNN) approach that
utilizes sparse ground motion measurements to accurately identify effective seismic forces in …

Output‐only model updating of adjacent buildings from sparse seismic response records and identification of their common excitation

SF Ghahari, F Abazarsa, H Ebrahimian… - Structural Control and …, 2020 - Wiley Online Library
Output‐only identification of civil structures is a challenging yet in escapable task, as input
excitations are unmeasurable in many real‐world situations. This paper presents a new …

Multi‐mode inversion of dispersive surface‐wave free fields in layered media

YH Xue, ZQ Dong, G Li, DH Yu… - … & Structural Dynamics, 2024 - Wiley Online Library
Inversion of surface‐wave free fields is of great importance in providing seismic excitations
for the finite element (FE) analysis of soil–structure interaction (SSI) systems. In the case of …

A 2D equivalent linear inversion model of bedrock motions in a layered transversely isotropic half-space

P Zhang, J Liang, Z Ba - Engineering Analysis with Boundary Elements, 2024 - Elsevier
Inversion is the process that evaluates input motion on the bedrock from surface motions,
primarily for use as input excitation for site seismic response or soil-structure interaction …

Seismic Response of Embankment Dams with Asphalt–Concrete Cores Based on the Three-Dimensional Time-Domain Inversion of Ground Motions

F Wang, Z Song, Y Liu, C Li, Z Li - International Journal of …, 2024 - ascelibrary.org
In this paper, the three-dimensional time-domain inversion of ground motions and its
application are performed. The relationship between the incident wave time series and …

Identification of nonlinear soil properties from downhole array data using a Bayesian model updating approach

F Ghahari, F Abazarsa, H Ebrahimian, W Zhang… - Sensors, 2022 - mdpi.com
An accurate seismic response simulation of civil structures requires accounting for the
nonlinear soil response behavior. This, in turn, requires understanding the nonlinear …

Probabilistic blind identification of site effects from ground surface signals

SF Ghahari, F Abazarsa, E Taciroglu - Bulletin of Earthquake Engineering, 2018 - Springer
A new blind identification technique is devised within a probabilistic framework to identify
site effects from ground surface accelerograms. Ground response analysis is an essential …

Discretize-Then-Optimize Modeling for Dynamic Force Inversion Based on Runge–Kutta Explicit Time Integration

S Lloyd, C Jeong - Journal of Engineering Mechanics, 2024 - ascelibrary.org
This paper presents a new discretize-then-optimize (DTO) method for dynamic force
inversion in a two-dimensional (2D) linear elastic, damped solid based on Runge–Kutta …