INVESTIGATING THE INFLUNCE OF LONGITUDINAL GRADIENTS ON THE MECHANICAL BEHAVIOR OF FASTENING SYSTEMS OF RAILWAY TURNOUTS | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7027475

Reference Type

Journal Article

Title

INVESTIGATING THE INFLUNCE OF LONGITUDINAL GRADIENTS ON THE MECHANICAL BEHAVIOR OF FASTENING SYSTEMS OF RAILWAY TURNOUTS

Author(s)

Khalil, AA; Metwally, KG; ,

Year

2016

Publisher

SCIENTIFIC RESEARCH CENTER LTD BELGRADE

Location

BELGRADE

Page Numbers

446-453

Web of Science Id

WOS:000391016300063

Abstract

The research presented in this paper aims to determine the influence of longitudinal gradients on the behavior of fastening systems of railway turnouts. This influence will be assessed through a case study in line No.3 of Greater Cairo metro network where 1 in 8 crossover has been installed in 2 % longitudinal slope. It has been observed that severe wear induced in the outer lead rail is out of tolerance in a short period after installation. Thus, the fastener steel clips on that rail have been damaged. Therefore, a sequence of analysis has been carried out in this paper to identify the causes of damaging of the clips. Clip's material has been tested to determine its chemical composition; then stereoscopic photos of fracture surface of the clip (X8) have been taken. The vertical and transversal wheel loads of the wagons affecting the lead rail fastening system have been simulated using ANSYS software, thus results of the simulation have been analyzed in detail. Finally, a conclusion on the mechanical behavior of turnouts, a recommendation to minimize rail wear and to eliminate clips damaging have been introduced.

Editor(s)

Cokorilo, O;

Conference Name

3rd International Conference on Traffic and Transport Engineering (ICTTE)

Conference Location

Belgrade, SERBIA