Results 81 to 90 of about 1,967 (219)

The Influence of Shear Effects on the Deflections of Steel Box Girder Bridges

Acta Polytechnica, 2000
It is already well known that the shear lag phenomenon, generated by shear deformations in the flanges of box girders, can result in a very non-uniform distribution, across the flange width, of longitudinal normal stresses, and consequently can then ...
V. Křístek, M. Škaloud
doaj  

Computational Fluid Dynamics Based Kriging Prediction on Flutter Derivatives of Flat Steel Box Girders

, 2022
An investigation on the flutter derivative prediction of flat steel box girders is carried out based on CFD simulations. Firstly, by taking the flat steel girder section of Qingshan Yangtze River Bridge as the basic section and considering its width and ...
Zhan Quan, Yao Zhang, Chunxiang Li, Liyuan Cao, Jinhua Li   +4 more
core   +1 more source

Behavior of curved steel trapezoidal box girders during construction

, 2002
textDue to advances in fabrication technology, the use of steel trapezoidal box girders for curved interchange structures has become popular. The rapid erection, long span capability, economics, and aesthetics of these girders make them more favorable
Topkaya, Cem
core  

Analysis of Deformation for PC Thin-Wall Box Girders Exposed to Fire

, 2011
Being aimed to deformation problem of pre-stressed concrete thin-walled multi-room box girders exposed to co-action of fire and load, on the basis of enthalpy conduction model and thermo-mechanics parameters, the finite element procedure was applied to ...
Gang Zhang, Wei Hou, Cui Juan Wang, Shuan Hai He   +3 more
core   +1 more source

Experimental Study on Reasonable Steam Curing Scheme of Prefabrication Box Girder

Advances in Civil Engineering
The assembly-line production mode was adopted to meet the production demands of prefabricated box girders for the Haiyan line. The steam curing method was introduced to accelerate concrete strength development, allowing the prestressing tension ...
Changpo Li, Chaoyu Zhu
doaj   +1 more source

Prediction of Shear Lag Effect in Thin-Walled Single-Box Multicell Box Girder Based on the Modified Warping Displacement Function

Advances in Civil Engineering, 2020
In this study, an effective and accurate theoretical analysis method for predicting the shear lag effect in the thin-walled single-box multicell box girder is presented.
Xiayuan Li, Shui Wan, Kongjian Shen, Peng Zhou, Xiao Wang   +4 more
doaj   +1 more source

Nonlinear Finite Element Analysis of the Reinforced Concrete Box Girders Strengthened with Carbon Fiber Sheets

, 2010
With the nonlinear finite element method and the program based on ANSYS which is redeveloped by APDL in it, the ultimate bearing capacity of reinforced concrete box girders strengthened with carbon fiber sheets is analyzed in the paper.
Guang Hui Wang, Cheng Long Wei, Xu Lei
core   +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

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

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