scholarly journals THREE-DIMENSIONAL STRESS ANALYSIS OF CONTINUOUS BOX GIRDER BRIDGE WITH VARIABLE CROSS-SECTION

1960 ◽  
Vol 1960 (69) ◽  
pp. c1-c34
Author(s):  
Sadao Komatsu
Keyword(s):  
Stress Analysis ◽  
Cross Section ◽  
Three Dimensional ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

Research on Temperature Effects of the Pre-Stressed Concrete Box Girder Bridge

2015 ◽  
Vol 744-746 ◽  
pp. 821-826 ◽  
Author(s):  
Yi Xiang Fu
Keyword(s):  
Three Dimensional ◽  
Great Influence ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Box Girder ◽  
Finite Element Software ◽  
Environment Temperature ◽  
Concrete Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

The distribution of the temperature gradient and temperature change of the pre-stressed concrete box girder are extremely complicated because of the multiplex environment. Temperature load has attached great importance in the field of engineering, and it has a great influence on the bridge’s structure, especially the box structure. The engineering background of this paper is a typical three-dimensional pre-stressed concrete continuous box girder bridge with variable cross section, comprising five spans in one continuous unit. Experiment on it and research the change rules of the temperature distribution, as well as the influence of the structure’s internal force resulted by temperature. Finite element software-Midas/FEA is used to model and calculate the bridge in order to analyze the temperature influence on structure’s stress in contrast to the measured data from the experiments

Study on the Load Test of Variable Cross-Section Box Girder Bridge

2013 ◽  
Vol 859 ◽  
pp. 135-138
Author(s):  
Xing Hang Long ◽  
Ji Jun Su ◽  
Lei Wang ◽  
Hai Bo Han ◽  
Yue Long Sun
Keyword(s):  
Cross Section ◽  
Variable Cross Section ◽  
Load Test ◽  
Variable Cross ◽  
Box Girder ◽  
Dynamic Load Test ◽  
Impact Coefficient ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Main Girder

In order to study the load property of variable cross-section continuous box girder bridge, in this paper, the static and dynamic load test were carried on the main span for Xiaoqinghe super-large bridge in Shandong province. The main girder stress, deflection, impact coefficient, self-vibration frequency and the static and dynamic characteristics were analyzed, compared with the theoretical calculation to judge the safety of the bridge.

Boundary element method in numerical study of three-dimensional Stokes flows in channels of arbitrary shape

2012 ◽  
Vol 9 (1) ◽  
pp. 94-97
Author(s):  
Yu.A. Itkulova
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Cross Section ◽  
Numerical Study ◽  
Three Dimensional ◽  
Cylindrical Tube ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Periodic Flows ◽  
Element Method

In the present work creeping three-dimensional flows of a viscous liquid in a cylindrical tube and a channel of variable cross-section are studied. A qualitative triangulation of the surface of a cylindrical tube, a smoothed and experimental channel of a variable cross section is constructed. The problem is solved numerically using boundary element method in several modifications for a periodic and non-periodic flows. The obtained numerical results are compared with the analytical solution for the Poiseuille flow.

Three-Dimensional Force and Deflection Analysis of a Variable Cross Section Drill String

1977 ◽  
Vol 99 (2) ◽  
pp. 367-373 ◽  
Author(s):  
B. H. Walker ◽  
M. B. Friedman
Keyword(s):  
Mechanical Properties ◽  
Mathematical Model ◽  
Cross Section ◽  
Three Dimensional ◽  
Variable Cross Section ◽  
Drill String ◽  
Oil Field ◽  
Variable Cross ◽  
Deflection Curve ◽  
Deflection Analysis

A mathematical model of an oil field drill string which includes the effect of torque has been developed. The drill string can include arbitrary members with known mechanical properties. The solution gives the three-dimensional deflection curve, forces on the borehole wall, the magnitude and direction of the resultant force and slope of the deflection curve at the bit.

The Program Design of the Variable Cross-Section of Concrete Continuous Skew Beam Bridge

2008 ◽  
Vol 400-402 ◽  
pp. 633-638
Author(s):  
Min Chen ◽  
Zhong Chu Tian ◽  
Guo Liang Zeng
Keyword(s):  
Cross Section ◽  
Concrete Beams ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Girder Bridges ◽  
Practical Engineering ◽  
Uniform Cross Section ◽  
Girder Bridge ◽  
Beam Bridge ◽  
Compound Section

In practical engineering, we often encounter designs of variable cross-section or compound section skew girder bridge. While in many bibliographies, uniform cross-section of the concrete beams studying was carried out, but few of variable cross-section concrete beams were in-depth studied. Based on analyzing the mechanical behavior of variable cross-section beam skew girder bridge, the semi-analytic solution of variable cross-section beam skew girder bridges were provided in this paper. With this method developed a planar computation program to resolve the calculation problems of skew girder bridge, a more convenient way will be brought up for designers in calculation.

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