Analysis of Parameters' Sensitiveness of Long-Span Hybrid Girder Cable-Stayed Bridge

2012 ◽  
Vol 517 ◽  
pp. 817-823
Author(s):  
Zhong San Li ◽  
Jun Qing Lei ◽  
Dong Huang Yan
Keyword(s):  
Tensile Force ◽  
Design Parameters ◽  
Highway Bridge ◽  
Construction Control ◽  
Test Results ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Control Precision ◽  
Good State ◽  
Cable Force

In order to improve the construction control precision of long-span hybrid girder cable-stayed bridge, the design parameters such as the weight of girder, the cable tensile force and the stiffness of cable are conducted sensitivity analysis through computing and comparing the influences of these parameters on the deflection of girders, the stress of girders and the cable force in the bridge's completion state. It was shown by the computation results that the main parameters of long-span hybrid girder cable-stayed bridge are the weight of girder and the cable tensile force, the stiffness of cable has a little influence on the completion state of the bridge. With this approach, through modifying the main parameters, while ignoring the influences of the secondary ones, the Jingyue Yangtze River Highway Bridge construction control has been successfully done. The test results show that the cable force and the contour of the bridge are in good state. They are both in the range of control, the relative error of the cable force is less than 3% and the elevation deviation is less than 5mm.

Full-Scale Model Test for Anchorage Zone of Pylon of Cable-Stayed Bridge

2012 ◽  
Vol 238 ◽  
pp. 728-732
Author(s):  
Xiao Lin Yu ◽  
Bu Yu Jia ◽  
Wei Feng Wang ◽  
Quan Sheng Yan
Keyword(s):  
Numerical Simulation ◽  
Stress Distribution ◽  
Full Scale ◽  
Scale Model ◽  
Deformation Condition ◽  
Zone Model ◽  
Construction Technology ◽  
Test Results ◽  
Cable Stayed Bridge ◽  
Cable Force

In this paper, the construction technology for main pylon of cable-stayed bridge is researched through test of full-scale model of anchorage zone of pylon of Guangzhou Bridge. Stress distribution and deformation condition of model under prestressed tendons and cable force are analyzed. Numerical simulation on this anchorage zone model is carried out. By comparing FEM results to the test results, some important conclusions are drawn out and give some advices to the optimum design of the bridge pylon. Parts of the achievements have been applied to actual bridge work and obtained successful engineering experience.

The Experimental Analysis of the Nonlinear Effects of Live Load of E-Dong Yangtze River Highway Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1672-1679
Author(s):  
Hui Ling Chen
Keyword(s):  
Geometric Nonlinearity ◽  
Yangtze River ◽  
Nonlinear Effects ◽  
Highway Bridge ◽  
Live Load ◽  
Load Effect ◽  
Large Span ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Actual Response

E-dong Yangtze River Highway Bridge is a compound double Tower Double Suspension Cable stayed bridge with a main-span of 926m. it has very distinctive geometric nonlinearity, which features as a long span, a high Tower, a soft construction, etc. in order to analyze how the geometric nonlinearity will affect the live load effect of large-span cable stayed bridge, we adopted the experimental results of the static experiments of the E-dong bridge to do a comparative analysis, during which all the calculation was based on the limited Factor theory. And the results showed that, the nonlinear results fit much better with the actual response of large-span cable stayed bridge, while the linear results produced a big difference.

The Clever Use of Neutron-Axis of the Girder in the Stress Measurement of the Large Span PC Cable Stayed Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 1696-1701
Author(s):  
Yu Feng Xu
Keyword(s):  
Normal Stress ◽  
Stress Measurement ◽  
The Other ◽  
New Method ◽  
Construction Control ◽  
Large Span ◽  
Cable Stayed Bridge ◽  
Creep Coefficient ◽  
Horizontal Part ◽  
Cable Force

As the stress measurement of interior concrete is hard in the construction control of the cable- stayed bridge, a new method fitted for stress measurement in large span PC concrete cable-stayed bridge is proposed in this paper. This method is based on the principle that the normal stress in neutron-axis of girder is only decided by the horizontal part of the cable force. First, the normal stress on the neutron-axis of girder is calculated by the measured cable force, and then the creep coefficient is identified, and finally the other stresses are worked out. This method has been applied to a large span PC cable-stayed bridge constructed in process with favourable results and thus proves its accuracy and efficiency.

Mechanics analysis of long span railroad cable-stayed bridge under effect of vertical loads

2021 ◽  
Author(s):  
Jun-Qing Lei ◽  
Xian-Qing Zhang ◽  
Shu-Lun Guo ◽  
Zu-Wei Huang ◽  
Wu-Qin Wang
Keyword(s):  
Large Scale ◽  
Engineering Application ◽  
Element Model ◽  
Design Parameters ◽  
Live Load ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Large Scale Analysis ◽  
Calculation Results ◽  
The Finite Element Model

<p>This paper aims to explore the challenge of the design of over one-kilometer-long span road-rail cable-stayed bridge. Because of the large live load and the weight of the structure itself, it has important theoretical significance and engineering application value to study the design parameters of the long Road-Rail cable-stayed bridge with a main span of over 1000 m. The main content of this paper is to study the Steel Road-Rail Cable-stayed Bridge with a main span of 1200 m. The finite element model is established by large-scale analysis software to calculate the response of the structure under load. Based on the calculation results, the rationality of long-span cable-stayed bridge are preliminarily researched. Wind and seismic loads are not considered.</p>

scholarly journals Numerical Analysis of Long-Span Cable-Stayed Bridge in the Construction Phase

2015 ◽  
Vol 9 (1) ◽  
pp. 896-905 ◽  
Author(s):  
Xue Chengfeng ◽  
Liu Laijun ◽  
Wu Fangwen ◽  
Yang Caofang
Keyword(s):  
Parametric Design ◽  
Tension Stress ◽  
Construction Stage ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Fea Model ◽  
Temperature Method ◽  
Cable Force ◽  
Sutong Bridge ◽  
Stage Analysis

The fabrication and erection of cable-stayed bridges involve major changes in structure configuration through the addition and removal of structure components. In every stage of the construction process, adequate information on the constructed structure is important to determine the real structure situation for the analysis of errors and to verify construction requirements. The ultimate goals are to meet construction needs and identify the effects of modification in subsequent construction procedures. The final configuration of the structure is strongly dependent on the construction and fabrication procedures. In this regard, developing an FEA model to simulate the actual construction processes is necessary to determine the performance of a bridge under external loads. In this study, a general methodology for construction processes is presented to simulate a cable-stayed bridge. The stage-by-stage construction of the Sutong Bridge is simulated with ANSYS software package. The tensions of cables are realized with ANSYS parametric design language, element birth and death function, and mutliframe restart function. The objective of the construction stage simulation is to identify stresses and deformations of the steel box girder and the concrete towers, as well as the cable tension stress, to meet the design requirements. Results of the construction stage analysis showed that the temperature method could simulate the adjustment of the inclined cable force successfully, and the global stiffness of the Sutong Bridge was very small before closure. These findings served as the initial data for a dynamic research on the Sutong cable-stayed bridge.

Research of construction control Technique of long-span Prestressed concrete cable-stayed bridge

2002 ◽  
Vol 86 (14) ◽  
pp. 18-25
Author(s):  
Chang-song Chen ◽  
Dong-huang Yan ◽  
Zhong-chu Tian ◽  
Xue-wen Li
Keyword(s):  
Prestressed Concrete ◽  
Control Technique ◽  
Construction Control ◽  
Cable Stayed Bridge ◽  
Long Span

scholarly journals Study of Cable Force of Construction Control and Alignment Control of Main Girders for Long-Span Railway Cable-Stayed Bridges

2013 ◽  
Vol 7 (9) ◽  
Author(s):  
Zengshun Chen ◽  
Cheng Zhang ◽  
Jianting Zhou ◽  
Jun Song ◽  
Chunrong Huang
Keyword(s):  
Construction Control ◽  
Long Span ◽  
Cable Force ◽  
Cable Stayed Bridges
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