Structural Design and Analysis of a Steel Vine Bridge

A steel footbridge with a 27m net span, a worm-shaped curve and a vine bridge style was proposed to be constructed in Diexi city of Sichuan, China. Considering the appearance and the functional requirement, the bridge is designed as follows: the section outline is composed of 21 different ellipse-shaped transverse ribs with 1.5m spacing, and the transverse ribs are connected by 12 longitudinal ribs. Comparison between two optional structure schemes is carried out. Considering the mechanical performance and economy, the structure scheme, a truss structured system at lower part of the bridge, is adopted. Internal force analysis, member design and deformation calculation of the structure are accomplished. Finite elements analysis with ANSYS shows that the welded joints can meet the bearing capacity requirement. Connection between the bridge and the foundation platform is also presented in this paper.

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Construction Stage Mechanical Performance Analysis of Long-Span Continuous Rigid Frame Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1030-1032.750 ◽

2014 ◽

Vol 1030-1032 ◽

pp. 750-753

Author(s):

Hua Su

Keyword(s):

Finite Elements ◽

Mechanical Performance ◽

Internal Force ◽

Construction Process ◽

Construction Stage ◽

Long Span ◽

Continuous Rigid Frame Bridge ◽

Rigid Frame ◽

Rigid Frame Bridge ◽

Finite Elements Model

Accurate simulation of construction process of continuous rigid frame bridge is a foundation to make a bridge built accurately. Based on the suit iteration method, this paper used MIDAS to built a 3D finite elements model, the internal force and deformation results of each construction stage was obtained. This study provided a good theoretical reference for the control of long-span continuous rigid frame bridge construction..

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Improved Scheme of Analysis and Stress Computation in Lap Welded Joints With Fillet Welds Tranverselly and Longitudinally Loaded

Design Engineering, Parts A and B ◽

10.1115/imece2005-80419 ◽

2005 ◽

Author(s):

Rafael Goytisolo ◽

Hernan Hernandez ◽

Jorge Moya ◽

Inga M. Jackson

Keyword(s):

Finite Elements ◽

Welded Joints ◽

Lap Joints ◽

Fillet Welds ◽

Finite Elements Analysis ◽

Stress Calculation ◽

Stress Computation ◽

Better Than

In this paper, a new scheme of analysis is used for the stress calculation in the throat area of the weld in lap joints with fillet welds transversely and longitudinally loaded. New calculation expressions are obtained that belong together better than the classic expressions with relationship to the values obtained by the Finite Elements Analysis.

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A SPLINES BASED METHOD FOR MODELING THE HUMAN HEAD FOR USE IN FINITE ELEMENTS ANALYSIS

10.26678/abcm.cobem2017.cob17-0951 ◽

2017 ◽

Author(s):

Daniel Ponce ◽

Eduardo Szpoganicz ◽

Leonardo Mejia Rincon ◽

Ernesto Ponce Lopez

Keyword(s):

Finite Elements ◽

Human Head ◽

Finite Elements Analysis

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Author response for "Cogging torque analysis in permanent magnet synchronous generators using finite elements analysis"

10.1002/2050-7038.12588/v2/response1 ◽

2020 ◽

Author(s):

Adem Dalcalı

Keyword(s):

Finite Elements ◽

Permanent Magnet ◽

Author Response ◽

Synchronous Generators ◽

Finite Elements Analysis ◽

Cogging Torque ◽

Permanent Magnet Synchronous Generators ◽

Torque Analysis

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Decision letter for "Cogging torque analysis in permanent magnet synchronous generators using finite elements analysis"

10.1002/2050-7038.12588/v1/decision1 ◽

2020 ◽

Keyword(s):

Finite Elements ◽

Permanent Magnet ◽

Synchronous Generators ◽

Finite Elements Analysis ◽

Cogging Torque ◽

Permanent Magnet Synchronous Generators ◽

Torque Analysis

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Multi-scale finite elements analysis of braids and bundles of filaments using embeded elements

Finite Elements in Analysis and Design ◽

10.1016/j.finel.2021.103631 ◽

2021 ◽

Vol 197 ◽

pp. 103631

Author(s):

Boris Burgarella ◽

Pascal Assi ◽

Louis Laberge Lebel

Keyword(s):

Finite Elements ◽

Finite Elements Analysis ◽

Multi Scale

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Redistribution of Internal Force under Structural Defect and Non-Linear Spatial Stability under Live Load and Wind of Tied-Arch Bridge

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.477-478.640 ◽

2013 ◽

Vol 477-478 ◽

pp. 640-645

Author(s):

Qian Hui Pu ◽

Hu Zhao

Keyword(s):

Safety Factor ◽

Mechanical Performance ◽

Influence Factors ◽

Internal Force ◽

Structural Defects ◽

Live Load ◽

Positive Contribution ◽

Arch Bridge ◽

Initial Defect ◽

Tied Arch Bridge

To study the mechanical performance and stability of tied-arch bridge under structural defects and damages, limited element modal of Panzhihua Luoguo Jinshajiang Bridge was established and analyzed. Firstly, some typical damage models and their influence factors were presented. Then, based on the model established, change of suspender force caused by arch rib lineation defect, hanger lineation defect and boom failure was calculated respectively. The stability safety factor under the load group composed of dead load, live load and wind was calculated as well as the second-class nonlinear stability safety factor under structural initial defect. Calculation results shows that, suspender forces were more sensitive to archs vertical defect than to transverse defect. While, short hangers were more sensitive to lineation defect than long ones, and secondary inner force in short booms were bigger than in long ones. The result also tells that lateral wind is bad to lateral stability. Lift wind, somehow, makes positive contribution to structures in-plane stability. Structural initial defect can draw down the second-class stability safety factor under geometric nonlinear condition.

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An Evolutionary Multi-Objective Optimization Approach to the Topology Optimization of Auxetic Structures

Volume 2: 28th Design Automation Conference ◽

10.1115/detc2002/dac-34149 ◽

2002 ◽

Cited By ~ 1

Author(s):

Ashraf O. Nassef

Keyword(s):

Topology Optimization ◽

Elastic Modulus ◽

Finite Elements ◽

Multiobjective Optimization ◽

Poisson Ratio ◽

Optimization Approach ◽

Multi Objective Optimization ◽

Finite Elements Analysis ◽

Multi Objective ◽

Auxetic Structures

Auxetic structures are ones, which exhibit an in-plane negative Poisson ratio behavior. Such structures can be obtained by specially designed honeycombs or by specially designed composites. The design of such honeycombs and composites has been tackled using a combination of optimization and finite elements analysis. Since, there is a tradeoff between the Poisson ratio of such structures and their elastic modulus, it might not be possible to attain a desired value for both properties simultaneously. The presented work approaches the problem using evolutionary multiobjective optimization to produce several designs rather than one. The algorithm provides the designs that lie on the tradeoff frontier between both properties.

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