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Home > Introduction > Concrete Sleeper |
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Category |
Measurement |
Standard |
Source |
Axis weight(Q) |
tf |
22(25) |
Article18, PC sleeper design specification
Article 62, National railroad construction rule |
Axis weight per tire(P) |
11(12.5) |
Design speed |
��/h |
100 |
Article 5. National railroad construction rule |
Arrangement of sleepers |
1st grade line |
�� |
62.5 |
16ea/ 10m |
2nd grade line |
Interval |
(a) |
3rd grade line |
4th grade line |
Geometrical Moment of Inertial (l) |
1st grade line |
��4
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3,090 |
60kg rail |
2nd grade line |
3rd grade line |
1,960 |
50kg N rail |
4th grade line |
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Category |
Measurement |
Standard |
Source |
Axis weight(Q) |
tf |
16 |
Concrete standard specification |
Axis weight per tire(P) |
8 |
Standard for concrete structure design |
Design speed |
��/h |
150 |
Article 5. National railroad construction rule |
Arrangement of sleepers |
�� |
62.5 |
16ea/ 10m |
Interval |
Duty
Cycle(i) |
Design
speed(V)
150km/h |
i |
1.77 |
Formula from American Railroad Engineering Agency |
Geometrical Moment of Inertial(I) |
��4 |
3,090 |
60kg |
1,960 |
50kg |
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