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| Structure Design and Analysis of Bridge Sleeper with Meter Gauge Based on Limit State Method |
| TIAN Chunxiang1, WANG Ping1, KE Wenhua2, XIONG Wei2 |
1. Southwest Jiaotong University, Chengdu, Sichuan 610031, China;
2. China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China |
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Abstract Research purposes: Based on relevant specifications, this paper analyzes the bending moment of 1 000 mm meter gauge sleeper for bridge under train axle load and derailment load, determines the design bending moment of bridge sleeper, and checks the different service states of sleeper for bridge. According to the dimensions and reinforcement of the sleeper, the bearing capacity bending moment and static load test values of rail seat and sleeper center section are calculated, which provides a basis for the test for sleeper. This paper puts forward the basic design method of meter gauge sleeper for bridge meeting the requirements of limit state method.
Research conclusions: (1) The influence of derailment load shall be considered in the design of sleeper for bridge; (2) According to the calculation method of sleeper, the load bending moment of the sleeper for bridge is calculated, and the bearing capacity bending moment and test load of the designed meter gauge bridge sleeper are determined; (3) The calculation results show that the checking calculation of bearing ultimate limit states, normal serviceability limit states and fatigue limit states of sleepers for bridge meet the requirements; (4) Static load test and fatigue test show that the sleeper meets the requirements of positive and negative bending moment test and anti-fatigue requirements; (5) The calculation and tests indicate that the designed meter gauge sleeper for bridge can meet the application requirements of the project;(6) The research results can be used to guide the design of bridge sleepers in meter gauge railway projects.
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Received: 21 January 2022
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2022, Vol. 39 
