Results 1 to 10 of about 37,069 (262)

Study on Solar Radiation and the Extreme Thermal Effect on Concrete Box Girder Bridges

open access: yesApplied Sciences, 2021
Thermal effect is an essential factor in the durability and safety of concrete bridges. Therefore, this paper mainly studied the concrete bridge box girder temperature distribution and thermal effect under solar radiation and the thermal load.
Yao Lu, Dejian Li, Kai Wang, Shiwei Jia
doaj   +5 more sources

Temperature Field and Temperature Effects for Concrete Box Girder Bridges Based on Monitoring Data and Numerical Simulation [PDF]

open access: yesSensors
The temperature field distribution and temperature effects of concrete box girder bridges were found to be critical to their long-term service safety. Based on long-term structural health monitoring data, the temperature field and temperature effects of ...
Mengxiang Zhai   +6 more
doaj   +3 more sources

Influence of Cracking on Deflections of Concrete Box Girder Bridges

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
The problem of cracking and long-term deflection in larger-span prestressed concrete box girder bridges exists throughout the world and has restricted the development of long-span concrete bridges to some extent.
Chao Liu, Dong Xu
doaj   +4 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   +4 more sources

Experimental and Numerical Study of the Ultimate Flexural Capacity of a Full-Size Damaged Prestressed Concrete Box Girder Strengthened with Bonded Steel Plates. [PDF]

open access: yesMaterials (Basel), 2023
Using steel plates attached with epoxy resin adhesive to strengthen prestressed reinforced concrete bridges has become a common method to increase bearing capacity in engineering because of the simple technology, low cost and good strengthening effects ...
Li Y, Yu Z, Liu Y.
europepmc   +2 more sources

Analysis of The Working Performance of Large Curvature Prestressed Concrete Box Girder Bridges. [PDF]

open access: yesMaterials (Basel), 2022
Based on numerical shape functions and the structural stressing state theory, the mechanical properties of the curved prestressed concrete box girder (CPCBG) bridge model under different loading cases are presented.
Yuan J   +6 more
europepmc   +2 more sources

A novel composite thermal insulation system for concrete bridge box girder and its influence

open access: yesCase Studies in Thermal Engineering, 2022
The temperatures of a concrete box girder were observed through a field test, and the finite element method (FEM) model of the concrete box girder was established.
Weigang Sun, Yiqiang Li, Weigang Zhao
doaj   +3 more sources

Decision Analysis of a Reinforcement Scheme for In-Service Prestressed Concrete Box Girder Bridges Based on AHP and Evaluation of the Reinforcement Effect

open access: yesBuildings, 2022
Prestressed concrete girder bridges are widely used worldwide due to their mature construction technology, economical cost, and low maintenance. After a certain number of years of service, prestressed concrete girders inevitably suffer from deterioration
Haikuan Liu   +3 more
doaj   +2 more sources

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   +2 more sources

Experimental Study of the Structural Behaviour of Reinforced Concrete Box Girder with the Using of Steel Plates Strengthening and Different Shapes of Cells

open access: yesDiyala Journal of Engineering Sciences, 2021
The aim of this research is to study the effect of corrugated steel plate strengthening on the structural behavior of reinforced concrete box girder using corrugated steel plates with vertical and horizontal corrugation and studying the effect of the ...
Zahraa Sermed Zuhdiy, Ali Laftah Abbas
doaj   +1 more source

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