Open AccessOptimal Design and Spacing of Mono-Block Prestressed Concrete Sleeper under Vertical load
Author(s) -
Mohamed Youssef Mohsen,
Hany Ibrahim Ahmed,
H.S. Riad,
Amr Ali Abdel Rahman
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.k2117.0981119
Subject(s) - ballast , track (disk drive) , structural engineering , load factor , block (permutation group theory) , geotechnical engineering , stress (linguistics) , moment (physics) , geology , engineering , mathematics , mechanical engineering , geometry , linguistics , oceanography , philosophy , physics , classical mechanics
The present paper proposes scientific and practical methodology to solve the following problems: the value of dynamic impact factor, sleeper spacing, Wheel load distribution along successive sleepers, stress beneath the sleeper and stress reduction within the railway successive layers. The proposed methodology aims to determine the following items: the suitable sleeper spacing for a given rail type, the wheel load distribution along successive sleepers, the moment within mono-block pre-stressed concrete sleeper (B70), the crushing strength between (sleeper and ballast surface) and finally the suitable effective ballast depth. A feasibility study to calculate the total cost of 1Km of either a single track or a double track per year, as well as selecting railway track elements economically & technically according to the external loads and mechanical characteristics.