Results 21 to 30 of about 721 (183)

Time-varying solar radiation-induced non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system

open access: yesCase Studies in Thermal Engineering, 2023
Aiming to investigate the non-uniform temperature distribution of the steel-concrete composite box girder-ballastless track system induced by the time-varying solar radiation, the ray-tracing algorithm was used to calculate the environmental parameters ...
Xingwang Sheng   +3 more
doaj   +1 more source

Influence of Blasting Vibration on Young Concrete Bridge: A Case Study of Yesanhe Super Large Bridge

open access: yesShock and Vibration, 2017
Influence of blasting vibration on young concrete structure is an important issue in the field of hydropower engineering, transportation, and so forth. Based on influence of blasting excavation on concrete pouring progress of box girder in nearby Yesanhe
Ming Chen   +4 more
doaj   +1 more source

Temperature Gradient and Its Effect on Long-Span Prestressed Concrete Box Girder Bridge

open access: yesAdvances in Civil Engineering, 2020
Temperature variations in the girder at two cross-sections of a long-span prestressed concrete box girder bridge (PCBG) were analysed based on measured data.
B. Gu   +4 more
doaj   +1 more source

The measurement of thermal changes on concrete box girder bridge [PDF]

open access: yesMATEC Web of Conferences, 2016
Thermal load, especially vertical temperature gradient is an important factor that should be considered during the bridge design procedure. In the world several researches focusing on thermal influences was performed, mostly in USA and China, but only a few analysed real measured cross-section temperature gradient at European bridges.
Krkoška Lukáš, Moravčík Martin
openaire   +2 more sources

Experimental Study and Numerical Analysis of Hydration Heat Effect on Precast Prestressed Concrete Box Girder

open access: yesBuildings
Large-span precast prestressed concrete box girders have been widely used in bridge construction near or across the sea. However, this would easily lead to a hydration heat problem, including large initial tensile stress and concrete cracks during the ...
Tianyu Wang   +4 more
doaj   +1 more source

Load Distribution Factors for Horizontally Curved Concrete Box Girder Bridges [PDF]

open access: yesEngineering and Technology Journal, 2014
In this study, a 3-D finite element model was used for the analysis of the horizontally curved bridge slab built monolithically with box girders. A parametric study was carried out to calculate the load distribution factors for horizontally curved ...
Eyad K. Sayhood   +2 more
doaj   +1 more source

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

Railway Bridge Using Small Post-Tensioned Concrete Box Girder

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
A girder depth is the critical parameter for rapid construction of bridge and clearance limitation in urban area such as high-density residential district.
Inkyu Rhee
doaj   +1 more source

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

Experimental and Numerical Study on Shear Performance of a Full-Scale Thin-Walled Retard-Bonded Prestressed Concrete Box Girder

open access: yesBuildings
In order to produce long-span precast bridge members and reduce the transport pressure of precast members, the lightweight design of bridge components has become a key area of research.
Liya Jia   +3 more
doaj   +1 more source

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