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BS EN 13146-4:2020

BS EN 13146-4:2020

$102.76

Railway applications. Track. Test methods for fastening systems – Effect of repeated loading

Published By Publication Date Number of Pages
BSI 2020 22
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This document specifies a laboratory test procedure for applying repeated displacement cycles representative of the displacements caused by traffic on railway track. It is used for assessing the long term performance of fastening systems.

The procedure is applicable to surface mounted rail on sleepers, bearers and slab track, and embedded rail.

This test procedure applies to a complete fastening assembly.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
8 3.2 Symbols and abbreviations
9 4 Principle
5 Apparatus
5.1 Rail
5.2 Actuator
5.3 Load application head
5.4 Displacement-measuring instruments
5.4.1 Calibration procedure
5.4.2 Calibration requirement
10 5.4.3 Fixtures for mounting displacement-measuring instruments
5.5 Force-measuring instruments
5.6 Verification of calibration
6 Test specimens
6.1 Sleeper or other rail support
6.2 Fastening
7 Procedure for one rail
7.1 General
11 7.2 Preparation for test
7.2.1 In line fastening
7.2.2 Offset fastening
7.3 Clamping force
12 7.4 Longitudinal rail restraint
7.5 Vertical stiffness of fastening assembly
7.5.1 Static stiffness
7.5.2 Low-frequency dynamic stiffness
7.6 Cyclic loading
7.6.1 Preparation for the cyclic load test
13 7.6.2 Preliminary load cycles
7.6.3 Continuation of the repeated load test
7.6.4 Results required from the repeated load test
17 7.7 Repeat tests
7.8 Final inspection
8 Alternative test procedure
8.1 General
8.2 Apparatus
8.2.1 General
8.2.2 Loading frame
18 8.3 Procedure
8.3.1 General
8.3.2 Preparation for test
8.3.2.1 In-line fastening
8.3.2.2 Offset fastening
8.3.3 Clamping force
19 8.3.4 Longitudinal rail restraint
8.3.5 Vertical stiffness
8.3.5.1 Static stiffness
8.3.5.2 Low-frequency dynamic stiffness
8.3.6 Cyclic loading
8.3.7 Repeat tests
8.3.8 Final inspection
20 9 Test report

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BS EN 13146-4:2020
$102.76