Near-fault pulse seismic ductility spectra for bridge columns based on machine learning
The seismic ductility spectra (SDS) method is a crucial tool to quickly evaluate the ductility
demand of bridge columns with varied constitutive models. However, conventional SDS …
demand of bridge columns with varied constitutive models. However, conventional SDS …
Probabilistic seismic demand model of UBPRC columns conditioned on Pulse-Structure parameters
Unbonded prestressed reinforced concrete (UBPRC) column has attracted the attention of
many researchers in bridge seismic design because of its small residual displacement …
many researchers in bridge seismic design because of its small residual displacement …
Seismic response prediction and fragility assessment of high-speed railway bridges using machine learning technology
B Wei, X Zheng, L Jiang, Z Lai, R Zhang, J Chen… - Structures, 2024 - Elsevier
Nowadays, reliable and accurate prediction of the seismic response of high-speed railway
bridges and then rapid assessment of their seismic fragility is crucial for the risk assessment …
bridges and then rapid assessment of their seismic fragility is crucial for the risk assessment …
Effect of near-fault vertical ground motions on failure mode of long-span sea-crossing cable-stayed bridges
Existing investigations have proved that the near-fault vertical ground motion (VGM) would
have a significant effect on the seismic performance of bridge structures. This study mainly …
have a significant effect on the seismic performance of bridge structures. This study mainly …
A novel structure-pulse coupled model for quantifying the column ductility demand under pulse-like GMs
ABSTRACT A novel model is constructed to investigate the coupling effect of pulse period
(Tp) and peak pulse velocity (Vp) on structural demands with the varied fundamental period …
(Tp) and peak pulse velocity (Vp) on structural demands with the varied fundamental period …
Potential bias of conventional structural seismic fragility for bridge structures under pulse-like ground motions: Bias evaluation and strategy improvement
Previous studies have highlighted the serious biases that may happen in probabilistic
structural fragility analysis (PSFA) due to the ignorance of the effect of pulse period under …
structural fragility analysis (PSFA) due to the ignorance of the effect of pulse period under …
Multivariable probabilistic seismic demand models for parametric fragility prediction of isolated bridges portfolios under pulse-like GMs
J Zhong, Y Zhu, X Zheng, Q Han - Engineering Structures, 2023 - Elsevier
The wide application of friction isolation bearings has led to a rapid increase in the number
of frictional isolated bridges. Therefore, the traditional method of seismic fragility analysis …
of frictional isolated bridges. Therefore, the traditional method of seismic fragility analysis …
Optimal intensity measures in probabilistic seismic demand models of cable-stayed bridges subjected to pulse-like ground motions
This study explored an optimal intensity measure for probabilistic seismic demand models of
multiple components in cable-stayed bridges subjected to pulse-like ground motions. To …
multiple components in cable-stayed bridges subjected to pulse-like ground motions. To …
Broadband ground‐motion synthesis via generative adversarial neural operators: Development and validation
We present a data‐driven framework for ground‐motion synthesis that generates three‐
component acceleration time histories conditioned on moment magnitude (M), rupture …
component acceleration time histories conditioned on moment magnitude (M), rupture …
Near-fault seismic risk assessment of simply supported bridges
Bridges tend to sustain excessive seismic demand (eg displacement) under pulse-like
ground motions attributing to the effect of forward directivity, which is of high likely to occur at …
ground motions attributing to the effect of forward directivity, which is of high likely to occur at …