Results 11 to 20 of about 37,069 (262)

Study on Sunshine Stress Effect of Long-Span and Wide Concrete Box Girder

open access: yesInternational Journal of Photoenergy, 2022
In order to further clarify the sunshine stress effect of long-span and wide concrete box girder, the study selected a concrete box girder with 4×42 m span and 33.5 m width, formed the temperature field load through a field test and numerical simulation,
Wang Cheng   +3 more
doaj   +2 more sources

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   +2 more sources

Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge

open access: yesAdvances in Materials Science and Engineering, 2021
To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross
Haoxu Li, Zhiguo Zhang, Nianchun Deng
doaj   +2 more sources

Parametric study of concrete box-girder footbridges

open access: yesJournal of Construction Engineering, Management & Innovation, 2018
[EN] This paper presents a study of the parametric variability of post-tensioned concrete box-girder pedestrian bridges. SAMO2 algorithm is used for the parametric study. This algorithm combines SA with a mutation operator, to find the economic solutions.
Yepes, V.   +3 more
openaire   +3 more sources

Diffusion Behavior of Chloride Ions in Concrete Box Girder under the Influence of Load and Carbonation. [PDF]

open access: yesMaterials (Basel), 2020
In order to study the durability degradation characteristics of concrete box girder under load and carbonation and chloride ion erosion, a scale model of concrete box girder was made for experimental research. According to the test results, the diffusion
Liu Y, Lin P, Ma J.
europepmc   +2 more sources

Study on the Effects of Innovative Curing Combinations on the Early Temperature Field of Concrete Box Girders

open access: yesBuildings, 2022
Box girder bridges are often subject to cracking due to wet temperature changes caused by the heat of hydration in the early stages; however, current studies do not provide an effective method for considering this effect.
Yong Zeng   +3 more
doaj   +1 more source

Study on the Dynamic Response of Composite Box Girder Bridges with Corrugated Steel Webs

open access: yesAdvances in Civil Engineering, 2023
To more accurately consider the dynamic response of composite box girder bridges with corrugated steel webs under the effect of live loads, based on the theory of vehicle-bridge coupled vibration, a refined finite element model of vehicle-bridge coupled ...
Ya-Na Mao   +3 more
doaj   +1 more source

Simulation Study on Sunshine Temperature Field of a Concrete Box Girder of the Cable-Stayed Bridge

open access: yesSustainability, 2023
This paper investigates the distribution of the sunshine temperature field in bridge structures. To implement thermodynamic boundary conditions on the structure under the influence of sunshine, this study utilized the FILM and DFLUX subroutines provided ...
Qiusheng Wang   +3 more
semanticscholar   +1 more source

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

Torsional Stress Analysis of Improved Composite Box Girder with Corrugated Steel Webs

open access: yesApplied Sciences, 2022
Based on Umansky’s second theory, this paper studies the torsional stress of an improved composite box girder with corrugated steel webs and considers the effective elastic modulus of the converted section.
Aoao Qin   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy