FIELD INVESTIGATION OF CONTACT STRESS DISTRIBUTION IN LOWER SURFACE OF B70 CONCRETE SLEEPER

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ZAKERI J.A.; DOROUDI Y.; MOHAMMADZADEH S.

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Paper Information

Journal: JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ) Year:2007 | Volume:34 | Issue:2 (47) MECHANICAL ENGINEERING Page(s): 23-31

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Title

FIELD INVESTIGATION OF CONTACT STRESS DISTRIBUTION IN LOWER SURFACE OF B70 CONCRETE SLEEPER

Author(s)

ZAKERI J.A. | DOROUDI Y. | MOHAMMADZADEH S. | Issue Writer Certificate

Keywords

RAILWAY TRACK MECHANICSQ1

CONCRETE SLEEPERQ1

TAMPINGQ1

STABILIZINGQ1

Abstract

Subsequent to rails, sleepers are the most important elements of the railway superstructures, for which its role is to keep the geometry of the line, resist against vertical and lateral loads and transfer them to the layer of ballast. Contact point between sleeper and ballast play an important role in defecting of the railway tracks. For this reason; method of analysis, design and built of sleepers and also how they have been implemented in superstructures are of an important issue in the railway engineering researches. This paper presents investigation of contact stress distribution in lower surface of sleepers through some experiments on railway tracks. In this experiment one sleeper equipped with several load cells was installed on a railway track situated in Bahram station. After TAMPING, some load was passed over the sleeper and the exerted forces were measured and consequently were analyzed as an output. It should be stressed that passing trains with an identified axial load were passed over the installed sleeper before and after the stabilization. Results show the real contact stress distribution in lower surface of the sleeper in different status i.e. (after TAMPING, before and after STABILIZING) and the effect and importance of required ballast compaction under the sleepers. With due consideration to the results achieved, it could be said that; right amount of ballast, sufficient compaction under the sleeper and performance of railway track's repair and maintenance machineries are of utmost importance and reduces non-uniformity of load distribution.

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APA: Copy

ZAKERI, J.A., DOROUDI, Y., & MOHAMMADZADEH, S.. (2007). FIELD INVESTIGATION OF CONTACT STRESS DISTRIBUTION IN LOWER SURFACE OF B70 CONCRETE SLEEPER. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ), 34(2 (47) MECHANICAL ENGINEERING), 23-31. SID. https://sid.ir/paper/43766/en

Vancouver: Copy

ZAKERI J.A., DOROUDI Y., MOHAMMADZADEH S.. FIELD INVESTIGATION OF CONTACT STRESS DISTRIBUTION IN LOWER SURFACE OF B70 CONCRETE SLEEPER. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ)[Internet]. 2007;34(2 (47) MECHANICAL ENGINEERING):23-31. Available from: https://sid.ir/paper/43766/en

IEEE: Copy

J.A. ZAKERI, Y. DOROUDI, and S. MOHAMMADZADEH, “FIELD INVESTIGATION OF CONTACT STRESS DISTRIBUTION IN LOWER SURFACE OF B70 CONCRETE SLEEPER,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ), vol. 34, no. 2 (47) MECHANICAL ENGINEERING, pp. 23–31, 2007, [Online]. Available: https://sid.ir/paper/43766/en

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