Results 1 to 10 of about 776 (186)

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

Sensors
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, Hongyin Yang, Bin Li, Jing Hao, Weihua Zhou, Hongyou Cao, Zhangjun Liu   +6 more
doaj   +2 more sources

Influence of Cracking on Deflections of Concrete Box Girder Bridges

The 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   +3 more sources

Railway Bridge Using Small Post-Tensioned Concrete Box Girder

The 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   +3 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

Diyala 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

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

Applied 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   +1 more source

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

Buildings, 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, Xueqin Li, Dong Jiang, Jiuhong Ran   +3 more
doaj   +1 more source

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

International 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, Zhang Chentian, Li Shuo, Li Jianhua   +3 more
doaj   +1 more source

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

Advances 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, Chi Ma, Shi-Zhong Liu, Li-Yuan Li   +3 more
doaj   +1 more source

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

Case 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   +1 more source

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

Case 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, Zoujie Chen, Weiqi Zheng, Hongyi Xu   +3 more
doaj   +1 more source