Results 61 to 70 of about 8,075 (231)

Safety Performance Evaluation of a Novel Portable Concrete Barrier Based on Vehicle Impact Test

Journal of Advanced Transportation, Volume 2026, Issue 1, 2026.
Portable concrete barriers (PCBs) are modular structures widely used to separate traffic lanes from construction zones. However, these barriers often exhibit insufficient structural safety to effectively block intruding vehicles, leading to severe casualties.
Xiuchen Xu, Zhen Wang, Zhaoyan Sheng, Ning Yan, Zhiqiang Cai, Honggang Yuan, Jinhao Liang   +6 more
wiley   +1 more source

Fatigue life prediction of welded box girder structures

Advances in Mechanical Engineering, 2017
The fatigue assessments for boom girders of a concrete pump truck, which is typically a welded box girder structure, were investigated in this study. Finite element analysis were conducted using shell and beam elements to obtain the stress histories of ...
Yaozhong Wu, Weijia Li, Qiuhua Lan
doaj   +1 more source

Force analysis of fabricated box girder bridge based on auxiliary structure

, 2021
Jun Tian
openalex   +1 more source

Experimental Study on the Flexural Performance of the Corrosion-Affected Simply Supported Prestressed Concrete Box Girder in a High-Speed Railway

Buildings
Prestressed concrete box girders are commonly employed in the development of high-speed railway bridge constructions. The prestressed strands in the girder may corrode due to long-term chloride erosion, leading to the degradation of its flexural ...
Hai Li, Yuanguang Qiu, Zhicheng Pan, Yiming Yang, Huang Tang, Fanjun Ma   +5 more
doaj   +1 more source

Study on shear behavior of composite box girder with corrugated steel webs with variable cross section considering folding effect [PDF]

AIP Advances
In composite box girders with constant cross section corrugated steel webs, the shear stress in the web is typically calculated based on the applied shear force.
Xiangming Lv, Fangxu Wang, Shizhong Liu
doaj   +1 more source

Temperature Distribution Characteristics and Action Pattern of Concrete Box Girder under Low-Temperature and Cold Wave Conditions

Applied Sciences
In regions with severe cold and high latitudes, concrete structures are susceptible to cracking and displacement due to uneven temperature stress, which directly impacts their normal utilization.
Hui Li, Yi-Kun Ba, Ning Zhang, Yong-Jian Liu, Wei Shi   +4 more
doaj   +1 more source

Experimental investigation on the temperature distribution of corrugated steel web box girders with and without encased concrete

Case Studies in Construction Materials
The thermal stresses resulting from temperature gradients within the structural components of bridges significantly affect their durability. This research conducted a field study to monitor the structural temperatures and environmental parameters ...
Hua-Rui Gao, Hao-Zhe Han, Feng Zhang
doaj   +1 more source

Optimization methods for the distortion of thin-walled box girders and investigation of distortion effects. [PDF]

Sci Rep, 2023
Wang Z.
europepmc   +1 more source

Evaluation of the Superiority of Lightweight-Aggregate-Concrete Prestressed Box Girders in Terms of Durability and Prestress Loss. [PDF]

Materials (Basel), 2023
Chen HJ, Kuo CC, Tang CW.
europepmc   +1 more source

Flexural Behavior of Damaged Hollow RC Box Girders Repaired with Prestressed CFRP. [PDF]

Materials (Basel), 2023
Guo X, Zeng L, Zheng X, Li B, Deng Z.
europepmc   +1 more source