Results 21 to 30 of about 1,967 (219)

Effect of Shear Deformation at Segmental Joints on the Short-Term Deflection of Large-Span Cantilever Cast Prestressed Concrete Box Girders

Buildings, 2023
The excessive deflection of large-span cantilever cast prestressed concrete (LCCPC) box girders has always been a complex problem to be solved in bridge engineering.
Jie Liu, Xiangyu Huang, Juanjuan Chen, Qiaoyun Wu   +3 more
doaj   +1 more source

Prediction of vertical temperature gradient on concrete box-girder considering different locations in China

Case Studies in Construction Materials, 2022
Since the bridges are subjected to complex environmental effects for a long period, it is important to have an accurate evaluation of vertical temperature gradient in box-girders for the assessment of the ambient thermal actions on the structure itself ...
Xingwang Sheng, Tieming Zhou, Shiji Huang, Chenzhi Cai, Tao Shi   +4 more
doaj   +1 more source

Fast 3D Pose Estimation Method for High Speed GMAW of Large Box Girders

Shanghai Jiaotong Daxue xuebao, 2022
In the process of high speed gas metal arc welding (GMAW), large box girder has many complex working conditions, such as positioning weld, low assembly accuracy, difficulty in strictly ensuring the pose of workpiece through tooling, real-time change of ...
LI Gaoyang, JIA Aiting, HONG Bo, LI Xiangwen, GAO Jiapeng
doaj   +1 more source

A new procedure for load-shortening and -elongation data for progressive collapse method

International Journal of Naval Architecture and Ocean Engineering, 2017
Progressive Collapse Method (PCM) has been broadly applied to predict moment-carrying capacity of a hull girder, however accuracy of PCM has not been much studied.
Jonathan Downes, Gökhan Tansel Tayyar, Illia Kvan, Joonmo Choung   +3 more
doaj   +1 more source

Numerical Analysis of Dead Load Shear Force Distribution in Webs of Multicell Inclined Web Box-Girder Bridge

Advances in Civil Engineering, 2020
Moment and shear load distribution are important in bridge design. Most existing studies have focused on the distribution of girders under vehicle loading, neglecting the dead load distribution between the webs of multicell box-girders.
Xingwei Xue, Meizhong Wu, Zhengwei Li, Peng Zhou   +3 more
doaj   +1 more source

Experimental study on mechanical behavior of steel truss-reinforced concrete box girders

, 2023
YesThis paper proposes a new design concept for a steel truss-reinforced concrete box girder which incorporates a steel truss instead of longitudinal bars and stirrups.
Ge, W., Sun, C., Cao, D., Xue, H., Ashour, Ashraf   +4 more
core   +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

Influence of Boundary Conditions on the Three-Dimensional Temperature Field of a Box Girder in the Natural Environment: A Case Study

Applied Sciences
The inhomogeneous distribution of temperature in bridges causes stresses and strains inside the structure, thus affecting the safety and durability of bridges.
Bin Yan, Hexin Fu, Haiting Su, Benguang Hou   +3 more
doaj   +1 more source

Load Distribution Factors for Horizontally Curved Concrete Box Girder Bridges [PDF]

Engineering and Technology Journal, 2014
In this study, a 3-D finite element model was used for the analysis of the horizontally curved bridge slab built monolithically with box girders. A parametric study was carried out to calculate the load distribution factors for horizontally curved ...
Eyad K. Sayhood, Raid I. Khalel, Hashim M. Hassan   +2 more
doaj   +1 more source

Curved Box-Girders with Corrugated Steel Webs under Torsion Loading

, 2011
It is known that coupled bending and torsional effect is a distinct characteristic of curved girders. According to mechanical characteristics of box girders with corrugated steel webs and theory of box girders, warping normal stress of box girders with ...
Bing Wen Yang, Jian Dong Zhang, Shui Wan
core   +1 more source