Results 21 to 30 of about 84 (82)

Parametric modeling for automated intelligent design of concrete beam bridges: A global and local optimization approach

open access: yesStructural Concrete, Volume 26, Issue 4, Page 4083-4102, August 2025.
Abstract The structural design of prestressed concrete girders in beam bridges is performed by coupling 3D parametric modeling, optimization, and statistical techniques, structural analysis, and design. The objective is to explore the potential and advantages of advanced design methodologies based on intelligent design.
Vinicius Nascimento de Moraes   +1 more
wiley   +1 more source

Modeling post‐earthquake functional recovery of bridges

open access: yesEarthquake Spectra, Volume 41, Issue 3, Page 2089-2122, August 2025.
Rapid restoration of transportation systems following earthquake disruptions is essential due to its significant impact on commutes, freight transport, and emergency medical response. This study develops a framework to model bridge post‐earthquake functional recovery, which is a critical step in assessing the seismic resilience of transportation ...
Chenhao Wu   +9 more
wiley   +1 more source

Time‐dependent seismic risk assessment of highway bridges in western Canada under mainshock‐aftershock subduction earthquakes

open access: yesEarthquake Spectra, Volume 41, Issue 3, Page 2123-2149, August 2025.
This study conducts the time‐dependent seismic risk assessment of highway bridges in western Canada when subjected to Cascadia subduction earthquakes (CSE) and aftershocks (AS). The performance‐based earthquake engineering framework is extended to assess the expected annual repair cost ratio and annual restoration time of a benchmark bridge class under
Yihan Shao, Yazhou Xie
wiley   +1 more source

Deep Learning‐Based Response Spectrum Analysis Method for Bridges Subjected to Bi‐Directional Ground Motions

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 8, Page 2031-2043, 10 July 2025.
ABSTRACT The response spectrum analysis method is one of the most widely used approaches developed to estimate the seismic demands of structural systems with minimal computational expense while maintaining high accuracy. The authors recently proposed a deep learning‐based combination (DC) rule to enhance the prediction accuracy of the response spectrum
Taeyong Kim, Oh‐Sung Kwon, Junho Song
wiley   +1 more source

Performance Assessment of Friction Pendulum Bearings in Bridges via Data Assimilation

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 9, Page 2172-2193, 25 July 2025.
ABSTRACT Seismic isolation techniques are widely used in regions susceptible to earthquakes. From a long‐term maintenance perspective, it is crucial to develop methodologies for assessing the post‐installation performance of these systems based on monitored data.
Xinhao He   +9 more
wiley   +1 more source

Seismic Design and Fragility of Self‐Centering Bridge Bent With Replaceable Stretch Length Anchors

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 5, Page 1433-1453, 25 April 2025.
ABSTRACT Seismic performance assessment of a modified two‐column bridge bent of an existing bridge is presented. The columns of the existing bridge are posttensioned with high strength steel bars. The modified bridge bent combines self‐centering, from unbonded posttensioned (PT) bars with low initial posttensioning stress in the columns, with energy ...
Suman Neupane, Chris P. Pantelides
wiley   +1 more source

Seismic Drift Estimates of Corroded Piers: A Multihazard Approach Utilizing 3D‐IDA Analysis With Time Stamps Considering Climate Change Effects

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 3, Page 1044-1063, March 2025.
ABSTRACT The compounding effect of seismicity, exposure to corrosion, and climate change in regions such as North America pose significant challenges for bridge design engineers, as the multihazards impact on the seismic performance of bridge structural systems remains underexplored.
Alaa Al Hawarneh   +2 more
wiley   +1 more source

A structure‐oriented loss function for automated semantic segmentation of bridge point clouds

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 6, Page 801-816, 28 February 2025.
Abstract Focusing on learning‐based semantic segmentation (SS) methods for bridge point cloud data (PCD), this study proposes a structure‐oriented concept (SOC) with training focused on the spatial distribution patterns of bridge components, including both the horizontally absolute location of each component and its vertically relative position ...
Chao Lin   +4 more
wiley   +1 more source

Seismic analysis of bridge with buckling‐restrained brace posttensioned concrete pier

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 1, Page 227-245, January 2025.
Abstract A two‐span bridge built with a two‐column pier consisting of unbonded posttensioned precast concrete columns and a buckling‐restrained brace (BRB) is analyzed using a three‐dimensional nonlinear numerical model. Seismic damage to the pier is eliminated through rocking of the posttensioned columns and seismic energy dissipation by the BRB.
Anurag Upadhyay, Chris P. Pantelides
wiley   +1 more source

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