Deformation Analysis of Short and Medium Span Curved Beam Bridge

2013 ◽  
Vol 347-350 ◽  
pp. 3546-3549
Author(s):  
Ju Jin ◽  
Xiao Fan Zhu ◽  
Hai Feng Ren
Keyword(s):  
Deformation Analysis ◽  
Curved Beam ◽  
Transverse Displacement ◽  
Software Modeling ◽  
Analysis Software ◽  
Element Analysis ◽  
Complex Needs ◽  
Deformation Law ◽  
Girder Bridge ◽  
Beam Bridge

Curved girder bridge can adapt to the complex needs of road, so it applies more and more. Because prestressed curved girder bridge is spatial structure, its deformation under load, prestress etc is very complicated. If ill-considered, it will cause accidents as cracking of beam body, too large transverse displacement and bearing disengaging etc. In this paper, by analysis of engineering examples, using ANSYS finite element analysis software modeling and calculating, we get the deformation law of small and medium span curved girder bridge under deadweight and prestress, and the law has guiding significance and practical value on design.

Deformation Analysis of TC4 Titanium Alloy Shell Material

2019 ◽  
Vol 814 ◽  
pp. 132-136
Author(s):  
Run Sheng Wen ◽  
Yang Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Titanium Alloy ◽  
Stress Distribution ◽  
Deformation Analysis ◽  
Shell Material ◽  
Analysis Software ◽  
Element Analysis ◽  
Material Optimization ◽  
Tc4 Titanium Alloy

Using ABAQUS finite element analysis software, the bending model of TC4 titanium alloy was established to study the stress distribution and obtain the maximum compressive displacement by limiting its yield strength. Therefore, the applicable properties of the materials are evaluated to provide a basis for material optimization.

Research on Stretching Order of Tendons in PC Curved Box Girder Bridge

2011 ◽  
Vol 219-220 ◽  
pp. 487-491 ◽  
Author(s):  
Ze Ying Yang ◽  
Yu Zhao ◽  
Zhi Sheng Liu
Keyword(s):  
Finite Element ◽  
Research Approach ◽  
Analysis Software ◽  
Element Analysis ◽  
Box Girder ◽  
Stress Fluctuation ◽  
Calculation Results ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Optimum Sequence

This paper is based on an existed bridge---ramp bridge A of Mu-Shi interlinked flyover on Zao-Mu Freeway. The model of curved Box Girder Bridge was built using finite element method to simulate the stretching of prestressed tendons. To start with, several different alternative stretching orders were proposed, and afterwards, mechanical reflection of bridge under different stretching orders was calculated and evaluated respectively by commonly used finite element analysis software Midas. Additionally, evaluation principle was to avoid the appearance of tension in the concrete and to minimize stress fluctuation during stretching. To sum up, optimal stretching sequence was put forward after comparison of the calculation results based on the proposed evaluation principle. Moreover, the optimum sequence referred in this paper and the research approach can provide some valuable referential information about the stretching of prestressed tendons of bridges in the same style.

Strengthening Method of T-Beam Bridge and Effectiveness Evaluation

2011 ◽  
Vol 219-220 ◽  
pp. 474-478
Author(s):  
Ze Ying Yang ◽  
Xu Yi Zhang ◽  
Hui Bin Yu
Keyword(s):  
Carrying Capacity ◽  
Yellow River ◽  
Effectiveness Evaluation ◽  
Analysis Software ◽  
Element Analysis ◽  
Beam Bridge ◽  
Load Simulation ◽  
T Beam ◽  
Grillage Method ◽  
Strengthening Method

In this paper, the typical deterioration of Northern Approach of Binzhou Yellow River Bridge is reviewed and the method of strengthening is proposed. Based on the theory of grillage method, T-beam grillage is modeled using finite element analysis software Midas civil to study the dynamic behavior of North approach’s superstructure after strengthening. Concerns about integrity of the carrying capacity and overall safety of the bridge are raised. Load simulation tests were performed to evaluate the effectiveness of the method and investigate its effect on structural behavior. And the results indicated that the bridge after strengthening could meet the demanding of intensity and rigidity.

Effects of Curvature Radius on Seismic Response of Curved Box-Girders Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1543-1546
Author(s):  
Qing Zhao
Keyword(s):  
Finite Element ◽  
Dynamic Characteristic ◽  
Seismic Response ◽  
Curvature Radius ◽  
Curved Beam ◽  
Box Girders ◽  
Element Analysis ◽  
Tangential Stiffness ◽  
Radial Stiffness ◽  
Beam Bridge

Taking an engineering design case about a three-span uniform section continuous curved box-girders bridge of city viaduct,this paper sets up a finite element calculating model for the curved box-girders bridge by means of finite element analysis program ANSYS and researchs the influence of dynamic characteristic and seismic response on curved box-girders bridge with the different curvature radius under the same span. The analysis results show that in the same span of curved beam , the low-level frequency impact of changes in different curvature radius of the curved beam bridge is larger,the curvature radius is an importance parameter which influence on dynamic characteristic, and have significant influence on tangential stiffness、radial stiffness and seismic response of curved box-girders bridge.

IMPACTS OF PRE-STRESS LOSS ON THE LONG-TERM DEFLECTION FOR LONG-SPAN PC CONTINUOUS GIRDER BRIDGE

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Jianqing Bu ◽  
Jincan Cui
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Girder Bridges ◽  
Long Span ◽  
The Finite Element Analysis ◽  
Continuous Girder Bridge ◽  
Girder Bridge

In order to analyze the impacts of pre-stress loss on the long-term deflection for long-span PC continuous girder bridges, this paper presents a numerical analysis using the finite element analysis software MIDAS/Civil based on a long-span PC continuous box-section girder bridge in Shijiazhuang. Once the 3-D finite element model was established, the influences of different pre-stress loss levels and locations were analyzed in a numerical simulation. Pre-stress loss is often the key reason for long-term deflection in long-span PC continuous girder bridges, so we can estimate the development of deflection by considering these factors during the operation.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

Design Research of Steel Pipe Combination of Angle Steel Tower of XiYue 220kV Cross Section

2013 ◽  
Vol 470 ◽  
pp. 408-411 ◽  
Author(s):  
Yan Zhong Ju ◽  
Xiao Xu Fu ◽  
Neng Xian Zeng
Keyword(s):  
Finite Element Analysis ◽  
Cross Section ◽  
Design Research ◽  
Axial Stress ◽  
Steel Pipe ◽  
Stress Difference ◽  
Analysis Software ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Angle Steel

Given the path situation of Xiyue substation 220kV four outlets project crossing Shunde waterway section,this article applies of Dao Heng tower full stress analysis software and the finite element analysis software ANSYS to two steel pipe combination of angle steel towers to carry on design research,contrast axial stress of two kinds of software,analyse the reasons of axial stress difference.

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