Results 21 to 30 of about 84 (82)
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
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
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
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
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
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
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
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
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
Seismic Performance and Engineering Application Investigation of a New Alternative Retainer. [PDF]
Yan L +5 more
europepmc +1 more source

