MIDAS-Based Finite Element Analysis of the Short Line Method of the Precast Segmental Bridge Construction

2014 ◽  
Vol 580-583 ◽  
pp. 3093-3097
Author(s):  
Lin Kun Guan ◽  
Xie Dong Zhang ◽  
Hui Lei
Keyword(s):  
Finite Element ◽  
Simulation Analysis ◽  
Internal Force ◽  
Light Rail ◽  
Bridge Construction ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Short Line ◽  
Finite Element Software ◽  
Line Method

This paper studies the precast and cantilever erection process of pre-stressed concrete continuous beam bridge alignment control in short line method, basis on the construction of a light rail. Various stages of bridge construction performed on simulation analysis and calculated by the finite element software MIDAS, concluded the ultimate internal force and deformation values, and the maximum deformation are within the scope of design elevation deviation 20 mm allowed, as to achieve the target of bridge assembly.

Finite Element Analysis on Incremental Launching Construction for Steel Box Girder

2013 ◽  
Vol 671-674 ◽  
pp. 974-979
Author(s):  
Jie Dai ◽  
Jin Di ◽  
Feng Jiang Qin ◽  
Min Zhao ◽  
Wen Ru Lu
Keyword(s):  
Finite Element ◽  
Bending Moment ◽  
Internal Force ◽  
Element Analysis ◽  
Box Girder ◽  
Finite Element Software ◽  
Cable Stayed Bridge ◽  
Steel Box Girder ◽  
Maximum Value ◽  
Negative Bending

For steel box girder of cable-stayed bridge, which using incremental launching method, during the launching process, structural system and boundary conditions were changing, structure mechanical behaviors were complex. It was necessary to conduct a comprehensive analysis on internal force and deformation of the whole structure during the launching process. Took a cable-stayed bridge with single tower, double cable planes and steel box girder in China as an example; finite element software MIDAS Civil 2010 was used to establish a model for steel box girder, simulation analysis of the entire incremental launching process was carried out. Variation rules and envelopes of the internal force, stress, deformation and support reaction were obtained. The result showed that: the maximum value of positive bending moment after launching complete was 60% of the maximum value of positive bending moment during the launching process. The maximum value of negative bending moment after launching complete was 78% of the maximum value of negative bending moment during the launching process.

Three Dimensional Finite Element Analysis of Reinforced Concrete Rectangular-Sectioned Aqueduct

2013 ◽  
Vol 644 ◽  
pp. 358-361
Author(s):  
Dong Yu Ji
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Element Analysis ◽  
Finite Element Software ◽  
Operating Process ◽  
Element Simulation ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

This paper adopts general finite element software to carry out three-dimensional finite element simulation analysis for Huizeli reinforced concrete rectangular-sectioned aqueduct. Considering four combination cases in aqueduct’s construction and operating process, researching variation laws of the aqueduct’s stress and displacement. Analysis results show that design scheme of Huizeli reinforced concrete rectangular-sectioned aqueduct is reasonable, it can meet design requirements. Analysis results provide some theory references for design of reinforced concrete rectangular-sectioned aqueduct.

A Method for Determining the Value of m Based on PLAXIS Nonlinear Finite Element Analysis

2011 ◽  
Vol 250-253 ◽  
pp. 1483-1488
Author(s):  
Jin Song Gui ◽  
Zhen Guo Li ◽  
Qing Meng ◽  
Bo Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bending Moment ◽  
Nonlinear Finite Element Analysis ◽  
Internal Force ◽  
Nonlinear Finite Element ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Finite Element Software ◽  
Selection Of

The value selection of m has a greater influence on the internal force of pile. So, how to determine the value of m is very important for the “m” method. In this paper, a geotechnical finite element software PLAXIS is used for the nonlinear finite element analysis of elastic long pile under the horizontal force action. By using the calculated maximum bending moment and the maximum displacement at the ground, and combined with the related formula for “m” method given in 《Code for Pile Foundation of Harbour Engineering》, a more accurate value of m can be obtained conveniently. Because this method is simple and practical, it can provide a useful reference for the project designer to determine a reasonable value of m.

Finite Element Analysis of the 40ft Container

2011 ◽  
Vol 243-249 ◽  
pp. 4311-4314
Author(s):  
Ming Hai Li ◽  
Shou Yuan Ma
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Finite Element Software ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
Static Conditions

Strength and deflection finite element analysis was given to the 40ft Container which export to Saudi when at the lifting and static conditions in this text. The text applied three-dimensional modeling software Pro / E for solid modeling, HyperMesh finite element software for mesh, ANSYS finite element analysis software to calculate, show maximum deformation and maximum stress position to every conditions of the container .provide the reliability calculating for this type of container.

Design Analysis of Unbonded Prestressed Concrete Two-Way Slab

2012 ◽  
Vol 204-208 ◽  
pp. 853-856
Author(s):  
Jia Sheng Liu
Keyword(s):  
Finite Element ◽  
Prestressed Concrete ◽  
Material Selection ◽  
Concrete Slab ◽  
Internal Force ◽  
Element Analysis ◽  
Finite Element Software ◽  
Linear Load ◽  
Standard Value ◽  
Force Calculation

Through some engineering example, the finite element software SAP2000N is used to make a finite element analysis on the prestressed concrete slab, which is made of concrete with grade of C40, low relaxation PC strand wile with tensile strength standard value of 1860N/mm2and nonprestressed reinforcements with grade of HRB335. By doing this, the author systematically introduced the material selection, prestressing technique and linear, load values and internal force calculation, distribution of prestressed tendons and nonprestressed reinforcement, the design process of crack and deformation of cast-in-site prestressed concrete two-way slab.

Finite Element Analysis on Inputting Cantilever of Bucket-Wheel Reclaimer Based on CATIA and ANSYS

2014 ◽  
Vol 526 ◽  
pp. 194-199 ◽  
Author(s):  
Zhi Yong Jiao ◽  
Xi Yang Liu ◽  
Mei Yu Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Basis ◽  
Optimization Design ◽  
Maximum Stress ◽  
Ansys Software ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Finite Element Software ◽  
Improvement Plan

In order to verify whether the inputting cantilever of bucket-wheel reclaimer will be cracked and plastic deformation, in this paper, with inputting cantilever of modeling and finite element analysis, 3D entity model of inputting cantilever is established by using CATIA software. With the transmitting data interface of ANSYS software, it imports the inputting cantilever model, which is established in the environment CATIA, into ANSYS software. Through the static analysis on the inputting cantilever by the finite element software ANSYS, we can get static deformation diagram and von stress distributing diagram. From the analysis results, we can find the weakest spot according to the displacement cloud chart, and find the stress most centralized spot according to the stress analysis cloud chart, then carry on the intensity examination to it, and make description and mark on the maximum deformation and the maximum stress spot, and put forward the improvement plan to improve the service life. This method is a efficient path for the design and intensity examination of inputting cantilever, and it provides theoretical basis for further optimization design.

Structure analysis of a dragline tooth and its wear prediction

2019 ◽  
Vol 43 (4) ◽  
pp. 526-534
Author(s):  
Manbodh Kumar Das ◽  
Shibayan Sarkar ◽  
Bhanwar Singh Choudhary
Keyword(s):  
Finite Element ◽  
Factor Of Safety ◽  
Surface Mining ◽  
Von Mises Stress ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Finite Element Software ◽  
Electron Microscopy Analysis ◽  
Microscopy Analysis ◽  
Von Mises

Dragline teeth are used to dig overburden rocks and fill the bucket by its action in surface mining. Thus, these teeth are very important for a better performance of the dragline. In the present investigation, efforts were made to determine the failure zone within the teeth through modeling, using the finite element software ANSYS workbench. The maximum deformation and maximum von-Mises stress were 0.286 mm and 801.38 MPa, respectively. From fatigue analysis, the minimum tool life was 24 540 cycle and the minimum factor of safety was 0.1 at the tip of the tool. Beyond the cutting edge (tip), the factor of safety was greater than 1.13. Finite element analysis was extended by varying the working load on the edge of the tool (68–86 tonnes) as well as the cutting angle (30°–36°). It was found that if the working load was increased, both corresponding maximum deformation and maximum von-Mises stress were increased, while the factor of safety was decreased. In the scanning electron microscopy analysis, wear phenomena such as rock intermixed, fracture of WC-grain, oxidized WC-grain, plastic deformation, cavity formation, cracking, and crushing were visible at magnification of 1000×.

Excavation and Support of Deep Foundation Pit Finite Element Analysis

2012 ◽  
Vol 532-533 ◽  
pp. 450-454
Author(s):  
Xiao Lin Dong ◽  
Dong Nan Han
Keyword(s):  
Finite Element ◽  
Large Scale ◽  
Earth Pressure ◽  
Internal Force ◽  
Structural Deformation ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Element Analysis ◽  
Finite Element Software ◽  
Excavation Process

In this paper, sun deep foundation works as background for the pit excavation process are charged to protect the structural deformation and earth pressure traits were studied, and the use of the GTS large-scale finite element software, the actual works in the excavation process in a step-by-stepthe displacement field, the internal force distribution of the analysis, management is deep foundation software and GTS software to calculate the results were compared, focusing on the supporting structure of the deformation and its influencing factors, and come to some meaningful patternsprovide a meaningful reference for similar projects.

Effects of occlusal scheme on All-on-Four abutments, screws and prostheses: A three-dimensional finite element study

2020 ◽  
Author(s):  
Nurullah Türker ◽  
Hümeyra Tercanlı Alkış ◽  
Steven J Sadowsky ◽  
Ulviye Şebnem Büyükkaplan
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Good Prognosis ◽  
Von Mises Stress ◽  
Element Analysis ◽  
Group Function ◽  
Occlusal Contact ◽  
Maximum Deformation ◽  
Contact Points ◽  
Von Mises

An ideal occlusal scheme plays an important role in a good prognosis of All-on-Four applications, as it does for other implant therapies, due to the potential impact of occlusal loads on implant prosthetic components. The aim of the present three-dimensional (3D) finite element analysis (FEA) study was to investigate the stresses on abutments, screws and prostheses that are generated by occlusal loads via different occlusal schemes in the All-on-Four concept. Three-dimensional models of the maxilla, mandible, implants, implant substructures and prostheses were designed according to the All-on-Four concept. Forces were applied from the occlusal contact points formed in maximum intercuspation and eccentric movements in canine guidance occlusion (CGO), group function occlusion (GFO) and lingualized occlusion (LO). The von Mises stress values for abutment and screws and deformation values for prostheses were obtained and results were evaluated comparatively. It was observed that the stresses on screws and abutments were more evenly distributed in GFO. Maximum deformation values for prosthesis were observed in the CFO model for lateral movement both in the maxilla and mandible. Within the limits of the present study, GFO may be suggested to reduce stresses on screws, abutments and prostheses in the All-on-Four concept.

Bionic design of the tower for wind turbine

2021 ◽  
pp. 095440622110046
Author(s):  
Yuqiao Zheng ◽  
Fugang Dong ◽  
Huquan Guo ◽  
Bingxi Lu ◽  
Zhengwen He
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Natural Frequencies ◽  
Bionic Design ◽  
Analytic Hierarchy ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Overall Stability ◽  
Biological Selection

The study obtains a methodology for the bionic design of the tower for wind turbines. To verify the rationality of the biological selection, the Analytic Hierarchy Procedure (AHP) is applied to calculate the similarity between the bamboo and the tower. Creatively, a bionic bamboo tower (BBT) is presented, which is equipped with four reinforcement ribs and five flanges. Further, finite element analysis is employed to comparatively investigate the performance of the BBT and the original tower (OT) in the static and dynamic. Through the investigation, it is suggested that the maximum deformation and maximum stress can be reduced by 5.93 and 13.75% of the BBT. Moreover, this approach results in 3% and 1.1% increase respectively in the First two natural frequencies and overall stability.

Sign in / Sign up

Export Citation Format

Share Document