Results 31 to 40 of about 812 (182)

Surrogate‐Based Time‐Continuous Seismic Fragility Assessment of Corrosion‐Deteriorated Reinforced Concrete Bridges Under Climate Change

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Seismic fragility assessment of reinforced concrete (RC) bridges exposed to corrosive environments must reliably capture time‐dependent deterioration impacts. Climate change compounds this challenge through nonstationary temperature and humidity variations that accelerate bridge corrosion.
Yexiang Yan, Yazhou Xie
wiley   +1 more source

Buckling of Curved Webs in Steel Box Girders [PDF]

open access: yesIABSE Reports, 2018
<p>Today, bridge girders with curved flanges and webs are becoming more common in order to increase the aesthetic value and to improve the quality of the structure. Despite the use of these new shapes, not much research has been done in this field.
Van Staen, Gilles   +2 more
openaire   +2 more sources

Large‐scale tests of 50‐year‐old prestressed concrete bridge girders

open access: yesStructural Concrete, EarlyView.
Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo   +7 more
wiley   +1 more source

Optimal structural design method for reinforced concrete column in buildings with high floor heights using a genetic algorithm

open access: yesStructural Concrete, EarlyView.
Abstract Globally, there is a growing trend toward taller, larger, and more structurally diverse buildings that require expansive interior spaces. Rapid technological advancements have surged the demand for data centers, while the expansion of e‐commerce has increased logistics volumes, driving the need for large‐scale warehouses.
Han Yong Lee   +2 more
wiley   +1 more source

Analysis of Influencing Factors and Noise Reduction Effects of Viaduct Noise in City Rail Transit

open access: yesChengshi guidao jiaotong yanjiu
[Objective] It is aimed to provide advice for viaduct noise control in city rail transit and application of noise reduction measures. [Method] Based on theories of vehicle-track dynamics, wheel-rail vibration radiation, and viaduct structure vibration ...
WANG Chaoliang, QIU Haihui
doaj   +1 more source

Sensitivity study on accuracy and relevant parameters in numerical modeling of internal tendon breaks

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the numerical modeling of internal tendon breaks in prestressed concrete structures and evaluates the key parameters affecting accuracy. A combined approach is followed, involving global sensitivity analysis via the Elementary Effects Method and subsequent model calibration using experimental data from distributed fiber‐
Aeneas Paul, David Sanio, Peter Mark
wiley   +1 more source

Fatigue Performance of Box Girders with Corrugated Steel Web Based on Finite Element Simulation Results

open access: yes工程科学与技术, 2016
:This paper presents a finite element analysis on flexural behaviors of box girders with corrugated steel web (hereafter called box girders). Displacement, stress and strain under static load is used to confirm the failure mechanism and stress weak spots.
Yuan Shu-Cheng, Wang Qing-yuan
doaj  

Optimization of cable-stayed bridges with box-girder decks [PDF]

open access: yesAdvances in Engineering Software, 2000
Abstract Box-girder decks are very effective solutions for long span cable-stayed bridges, due to their high torsional stiffness and streamlined profile, which usually lead to a good aerodynamic behaviour. A study on the optimization of such structural system is presented in this paper.
Simões, Luis, Negrão, João
openaire   +3 more sources

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

open access: yesStructural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Comparative study on structural noise characteristics of continuous rigid frame and simply supported box-girder bridges in rail transits

open access: yesJournal of Low Frequency Noise, Vibration and Active Control
To further investigate the bridge structural noise radiation characteristics when trains pass through continuous rigid frame box-girders and the influence of different bridge structural forms on the bridge structural noise radiation characteristics in ...
Lizhong Song   +5 more
doaj   +1 more source

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