Results 1 to 10 of about 733 (137)

Research on mechanical characteristics and key technology of integral intelligent lifting construction of large-span heavy steel box girder. [PDF]

PLoS ONE
This paper aims to address the problems of aerial orientation control and safety in sudden extreme working conditions during the integral intelligent lifting of large-span heavy steel box girder. Based on the project of Xiaotun Bridge of Fuyi Expressway,
Xiaofeng Liu, Mingliang Li, Zhi Geng, Shuhong Zhu, Wenjie Li, Bin Liang   +5 more
doaj   +2 more sources

All-weather precision alignment technology for ultra-wide steel box girders in cable-stayed bridges [PDF]

Scientific Reports
High precision is required during the precise matching construction of steel box girder cable-stayed bridge segment suspension assembly. Due to temperature differences, sunlight, and other factors, the bridge shape changes dramatically during the day, so
Wang Laifa, Li Yexun, Zou Ci, Zhou Sicheng   +3 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

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

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

Applied 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, Shizhong Liu, Baojia Gong, Minghao Cai, Fangxu Wang   +4 more
doaj   +1 more source

RETRACTED: Study on the design of composite beams under complex environment in mountainous areas

Frontiers in Earth Science, 2023
The mountain area is faced with complex conditions such as vertical and horizontal valleys, complex geological topography, many earthquake fault zones, high seismic intensity, fragile ecology, and changeable climate. The traditional concrete bridges have
Yicheng Zhao, Caizhi Sun, Sheng Li
doaj   +1 more source

Numerical and theoretical research on spatial shear lag effect of self-anchored suspension bridge steel box girder [PDF]

Archives of Civil Engineering, 2021
The shear lag effect of the steel box girder section in a self-anchored suspension bridge was investigated in this study. Finite element analysis software Midas Civil was used to discretize the girder under analysis into space plate elements and ...
Yanfeng Li, Ying He, Longsheng Bao, Baoyun Sun, Qinghe Wang   +4 more
doaj   +1 more source

Mechanical Performance Analysis and Parametric Study of a Self-Anchored Suspension Bridge with Ultra-Wide Double-Sided Steel Box Girder

Advances in Civil Engineering, 2021
A sufficient understanding of mechanical performance of self-anchored suspension bridge with double-sided steel box girder is essential for design and normal use as such bridges are widely built in urban bridge.
Fangwen Wu, Wenlong Tang, Shuo Liu, Yanpeng Feng, Guangqian Wang, Maohua Du   +5 more
doaj   +1 more source

Deformation and energy dissipation of steel box girders of cable-stayed bridges subjected to blast loadings [PDF]

Sustainable Structures, 2023
Steel box girders are widely used in cable-stayed bridges, while they are prone to severe damage under explosions. This paper investigates the deformation and energy dissipation of steel box girder of cable-stayed bridges under blast impact, caused by ...
Yu Zhu, Shaoyu Zhao, Yuye Zhang
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

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