Abstract

The results of the technical examination of the pedestrian bridge over the Western Bug River on the territory of the Brest Fortress are presented. A new constructive solution of the bridge, the results of its numerical modeling and the features of installation are presented. The fullscale tests of the bridge with a movable test load confirmed the design decisions made by the authors. The resulting efforts in the ropes did not exceed the calculated values.

Highlights

  • The bridge is made as a single-span suspended bridge with a span of 143.25 m and a distance between the axes of paired ropes - 4.6 m.The height of the bridge pylons was 10.6 m

  • The supports for the pylons are made of monolithic reinforced concrete: the left bank in the plan is rectangular, and the right bank is in the form of a hexagon, while the top of the left bank support is 1.15 m higher than the ground surface

  • The bridge is made of wood, made of planks along the beams resting on steel corners attached to the suspension of the bridge

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Summary

Results of technical expertise

At the beginning of the last century, a pedestrian bridge (from Brest to the Pogranichny Island across the Bug River) was built and reconstructed several times in the area of the border sign No 1265. The supports for the pylons are made of monolithic reinforced concrete: the left bank in the plan is rectangular, and the right bank is in the form of a hexagon, while the top of the left bank support is 1.15 m higher than the ground surface. As it was noted above, the main load-bearing elements of the bridge are four flexible curved threads (cables of the cable-stayed system), passed over the top of the steel pylons and anchored in the tensioners of the coastal reinforced concrete stops. It should be noted that by the time of the survey, part of the suspension brackets was “torn off” from the roadbed, and the roadway structures (girders and flooring) were partially destroyed

Constructive solution
Numerical modeling
Mounting
Full Text
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