scholarly journals Comparative Study of Structural Behaviour of Reinforced Concrete Box Girder with Different Numbers of Cells

2021 ◽  
Vol 1076 (1) ◽  
pp. 012110
Author(s):  
Zahraa Sermed Zuhdiy ◽  
Ali Laftah Abbas
Keyword(s):  
Reinforced Concrete ◽  
Comparative Study ◽  
Structural Behaviour ◽  
Box Girder ◽  
Concrete Box Girder

scholarly journals Experimental Study of the Structural Behaviour of Reinforced Concrete Box Girder with the Using of Steel Plates Strengthening and Different Shapes of Cells

2021 ◽  
Vol 14 (1) ◽  
pp. 86-95
Author(s):  
Zahraa Sermed Zuhdiy ◽  
Ali Laftah Abbas
Keyword(s):  
Reinforced Concrete ◽  
Crack Width ◽  
Ultimate Load ◽  
Steel Plates ◽  
Structural Behaviour ◽  
Box Girders ◽  
Box Girder ◽  
Rectangular Cell ◽  
Circular Cell ◽  
Concrete Box Girder

The aim of this research is to study the effect of using corrugated steel plate strengthening on the structural behaviour of reinforced concrete box girder by using corrugated steel plates with vertical and horizontal corrugation and studying the effect of the shape of cells by using rectangular and circular shape with the same web width and strengthening the circular cell with smooth plate. Five simply supported reinforced concrete box girders are casted by using Self-compacting concrete and experimentally tested under four-point load. The box girder specimens are divided into two groups according to the steel strengthening and the shape of cells. The experimental results showed that in the first group, the using of the vertical and horizontal corrugated steel plates strengthening increased the ultimate load by (7.14% and 11.03%) respectively compared with the control box girder, and decreased the crack width, the results also showed that in the second group, the using of circular cell and circular strengthened cell increased the ultimate load by (17.85% and 29.22%) respectively compared with the control box girder with rectangular cell and decreased the crack width. All the box girders in the first and second group failed with diagonal shear.

A materially nonlinear finite element model for the analysis of curved reinforced concrete box-girder bridges

1993 ◽  
Vol 20 (5) ◽  
pp. 754-759 ◽  
Author(s):  
S. F. Ng ◽  
M. S. Cheung ◽  
J. Q. Zhao
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Finite Element Model ◽  
Element Model ◽  
Nonlinear Material ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Concrete Box Girder ◽  
Concrete Box Girder Bridges

A layered finite element model with material nonlinearity is developed to trace the nonlinear response of horizontally curved reinforced concrete box-girder bridges. Concrete is treated as an orthotropic nonlinear material and reinforcement is modeled as an elastoplastic strain-hardening material. Due to the fact that the flanges and webs of the structure are much different both in configuration and in the state of stresses, two types of facet shell elements, namely, the triangular generalized conforming element and the rectangular nonconforming element, are adopted to model them separately. A numerical example of a multi-cell box-girder bridge is given and the results are compared favourably with the experimental results previously obtained. Key words: finite element method, curved box-girder bridges, reinforced concrete, nonlinear analysis.

The Analysis of Temperature Field of Concrete Beam of Hydration Heat

2014 ◽  
Vol 599-601 ◽  
pp. 179-182
Author(s):  
Xu Hui Yao
Keyword(s):  
Temperature Field ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Early Stage ◽  
Hydration Heat ◽  
Box Girder ◽  
Time Histories ◽  
Concrete Box Girder ◽  
Action Process

This paper attempts to use the I-deas software to analysis the reinforced concrete box girder temperature field in early stage, focusing on the analysises under the action process of water thermal and reinforced concrete box girder variation law of temperature field under time histories.

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