Prestressed rail beam and its manufacture
A manufacturing method, technology of track beams, applied in the field of running tracks of rail vehicles
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[0040] See figure 1 , figure 2 with image 3 , The prestressed track beam of the present invention includes a beam top plate 1, a beam bottom plate 2, and a beam web 3. It is characterized in that several parts are provided in the left part 21 and right part 22 of the top plate 1 of the track beam and the left part 21 and the right part 22 of the beam bottom plate 2. Eccentric pre-tensioning prestressing beams 5, a number of eccentric pre-tensioning pre-tensioning beams 6 are set in the middle part 20 of the track beam bottom plate 2, and one first post-tensioning method is arranged on the two webs 3 of the track beam according to the quadratic parabolic shape. The pre-stressed beams 7 are each configured with a second post-tensioning pre-stressed beam 8 in the shape of a secondary parabola.
[0041] For curved track beams, in addition to the pre-stressed beams configured as described above, transverse eccentric pre-tensioned pre-stressed beams 9 should also be configured in the...
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