Railway Bridge CAD Software Program

2011 ◽  
Vol 403-408 ◽  
pp. 2893-2896
Author(s):  
Jia Wen Li ◽  
Zhi Xuan Pan ◽  
Hai Yan Zhang ◽  
Bang De Li

After analyzing the features of all kinds of CAD software program, this paper reaches such a conclusion: most of traditional bridge-design programs focus on calculating structural load, so nowadays the calculating feature of this software programs is greatly improved. At the same time, a common problem is still with traditional bridge-design software programs, and this problem is all this programs don’t have any model that offer information referred to the bridge being designed, and this problem result in isolation of data in different stage of designing. To solve this problem, this paper proposes that railway bridge CAD software program take ACCESS as core database and AUTOCAD as supporting graphical system, and we should develop new software program on this basis. This paper also propose that bridge-design software program we develop in future should take design knowledge and bridge information referred to 3D geometric data in consideration, so that the design software program can reuse the characteristic component databases and all kinds of information in different design stage.

Author(s):  
Jean Bragg Schumaker ◽  
Joseph Fisher

Multimedia software programs have been developed and empirically validated for teaching secondary students with learning disabilities new skills and strategies. Some of them can be appropriately put into practice in general education classes in which diverse groups of students are enrolled. One of them, the Commas Strategies Program (Schumaker & Sheldon, 2009), is featured in this article. Because comma skills are specified in national and state standards, all students are required to learn them. The Commas Strategies Program can be used to ensure that all students learn these skills. This article describes the previous research associated with the program and the components of the program. It also describes the features of the program that were specifically designed to ensure that diverse classes of students will learn from it. Further, it describes procedures teachers can follow to put the program into practice and ensure student learning. Enrichment activities that can also be used associated with the software program are suggested.


Author(s):  
Gilles Van Staen ◽  
Hans De Backer ◽  
Philippe Van Bogaert

A bridge is nowadays more than a structure that connects people over an obstacle. When a bridge has to be built in an urban area, either it has to be a landmark or it should blend away in the environment. The use of curved steel panels is one option to obtain these requirements. However, due to a lack of knowledge, engineers end up with a conservative design to implement these structural elements. For that reason, a Finite Element Model is made of a railway bridge, where the outer webs of the main girders have a varying web curvature. Six different models are made and compared. The most important parameters that are compared are the deformations and the stresses in the webs. The study finds that curved webs have an equal or even better behavior than flat webs, even with smaller web thickness. This makes that designers can use curved webs in their design, without needing extra steel to make their design safe.


2015 ◽  
Vol 5 (1) ◽  
pp. 7-13 ◽  
Author(s):  
M. Bindea ◽  
Claudia Maria Chezan ◽  
A. Puskas

Abstract Full flat slabs can be enhanced by using spherical voids to replace the unemployed concrete from the core part of the slab. Therefore we get low self-weighted slabs that can reach a high range of spans, a low material consumption compared to classical solutions used so far. On the other hand, the upsides of these slabs pale against the insecurity in design stage about their punching and shear force behaviour. In this paper it is presented a parametric study about shear force behaviour of flat slabs with spherical voids used in standard condition service. The study was made using the Atena 3D finit element design software, starting form a numerical model gauged on experimental results on real models – scale 1:1. Based on these lab results, the model’s validation was made by overlapping the load – displacement experimental curves on the curves yielded from numerical analyses. The results indicate that under a longitudinal reinforcement rate of lower than 0.50%, flat slabs with spherical voids don’t fail to shear force and over this value the capable shear force decreases in comparison with solid slabs, as the reinforcement rate increases.


2022 ◽  
pp. 241-304
Author(s):  
Syed Javaid Zaidi ◽  
Haleema Saleem

2013 ◽  
Vol 401-403 ◽  
pp. 26-30
Author(s):  
Bo Gao ◽  
Xiao Gui Zhang ◽  
Ji Fei Cai

Printing and packaging machinery have complex technology motion. The mechanism is composed of different basic mechanism. The mechanism design is an important stage in Innovation Design of Printing and Packaging Machine. The mechanics design applying Solideworks three dimensions design software and Matlab Simulation was introduced; in the design stage, assemble interference and interference detection of the mechanics were made by Solideworks Visible model; on the basis, the analysis on the kinematics and dynamics of machinery by Matlab Simulation were done. The application example shows the Solideworks three dimensions design and Matlab Simulation is a perfect design method.


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