Bearing capacity evaluation of a continuous beam bridge after bridge pier subsidence

2015 ◽  
Author(s):  
Y. J. Wu ◽  
Z. Shi ◽  
T. Chen ◽  
Q. H. Pu
Keyword(s):  
Bearing Capacity ◽  
Bridge Pier ◽  
Continuous Beam ◽  
Capacity Evaluation ◽  
Continuous Beam Bridge ◽  
Beam Bridge

Impact of Track Longitudinal Resistance on the Calculation of Continuous Welded Rail Sited on the Bridge

2014 ◽  
Vol 638-640 ◽  
pp. 947-953
Author(s):  
Liu Hao ◽  
Qi Wei ◽  
Ping Wang ◽  
Jie Ling Xiao
Keyword(s):  
Calculation Model ◽  
Bridge Pier ◽  
Continuous Beam ◽  
Continuous Beam Bridge ◽  
Continuous Welded Rail ◽  
Constant Resistance ◽  
Longitudinal Resistance ◽  
Beam Bridge ◽  
The Impact ◽  
Line Resistance

In order to find the impact on longitudinal resistance of continuously welded rails on bridge under different longitudinal resistance of the lines, based on the principle of the interaction between bridge and track, an integrative rail-bridge-pier calculation model of CWR on bridge is developed. Take simple-supported and continuous beam bridge as example to analyze the influence of continuously welded rails on bridge under different line resistance. The result shows that whether simple-supported or continuous beam bridge, the additional expansion forces which conducted by the constant resistance are smaller than the bilinear and power-exponential resistance, and the gap becomes greater as the increasing of the expansion length, and the calculation of the bilinear and power-exponential resistance becomes more and more similar. Besides, the calculation of the braking forces which conducted by the constant resistance is smaller than the bilinear and power-exponential resistance, while the displacement between the rail and beams is bigger, and has exceeded the calculation standard; the breaking joint of rail conducted under different longitudinal resistance is basically the same, but decreased gradually with the maximum line resistance increased.

Ultimate Bearing Capacity Analysis of Concrete Filled Steel Tubular Arch Considering the Initial Defects’ Influence

2012 ◽  
Vol 446-449 ◽  
pp. 1248-1251 ◽  
Author(s):  
Jun Liang Hu ◽  
Quan Sheng Yan ◽  
Xiao Lin Yu ◽  
Heng Bin Zheng
Keyword(s):  
Heat Treatment ◽  
Bearing Capacity ◽  
Ultimate Bearing Capacity ◽  
Capacity Analysis ◽  
Continuous Beam ◽  
Axis Deviation ◽  
Construction Process ◽  
Continuous Beam Bridge ◽  
Cfst Arch Bridge ◽  
Beam Bridge

In the CFST arch bridge construction process, for the reasons of arch axis deviation as prefabricated or constructed, the bearing capacity of arch-rib decreased. This paper considers material and geometric non-linear double factors, calculates the arch-rib ultimate bearing capacity of a CFST arch/continuous beam bridge with defects of arch axis deviation and steel yield stress decrease because of heat treatment, obtain the influence of defects to arch bearing capacity.

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