It begins building two concrete beams (one on each side of the track), 0.30 x 0.30 m. and a height of 0.47 m. head lower than the lower rail. On these, glide iron beams HEB-280 to pass between cross and cross, near the bottom of the rails to each supporting beam in the concrete beams. Lane is subject to the iron girders with a special clip. # To give strength to propping all beams with other side, backed up, which is welded to the first installed will join. # To avoid transverse movements beam to be available great song (lattice) lying on the beams and welded thereto. # to avoid vertical movements two lattices are placed, (one on each side of the road), subject to the U-bolts or welded beams.
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机译：它开始建造两根混凝土梁（在轨道的每一侧各一根）0.30 x 0.30 m。高度为0.47 m。头部低于下部导轨。在这些导轨上，滑行铁梁HEB-280在横梁之间和横梁之间通过，靠近铁轨的底部，到达混凝土梁中的每个支撑梁。巷道受制于带有特殊夹子的铁箱梁。 ＃为了增强所有梁的另一侧支撑的能力，将其备份（焊接到第一个安装的梁）进行连接。 ＃为避免横梁运动，横梁可用大曲（晶格）躺在横梁上并焊接在横梁上。 ＃为避免垂直移动，在U型螺栓或焊接梁的作用下，放置了两个格子（在道路的每一侧各一个）。
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