Realization
2021
Description
Realization:
2021
Place:
City of Písek, footbridge over the Otava river, Czech Republic
Description:
The existing footbridge structure consists of two structures made of continuous beams with two spans. The steel riveted truss structure with a suspended bridge deck has a span of 4 x 30.0 m. A pair of continuous truss beams with a height of approximately 2.1m form the main load-bearing elements of the structure. The trusses have the axial spacing of 2.70 m. The elements of the riveted truss structure are designed as segmented members made of L-profiles and plates of variable thicknesses. Distance of vertical segments is 1.765 m. The fully bound members ensure stability of the upper compression flange. The steel elements of the bridge deck carry wooden slats with the thickness of 55 mm. The horizontal bracing of the footbridge is solved by means of a diagonal stiffener, which is located in the plane of the lower flange of the crossbars.
The steel structure of the ramp to the island consists of 3 bays of approximately equal length and one bay that was extended during the reconstruction to provide sufficient support for the wooden bridge deck. The slope of the ramp is about 8.3%. The clear width of the ramp is 2.5 m.
Steel structure condition research, detail design and workshop drawings of the steel structure
Renovation of the steel structure, fabrication and replacement of the old insufficient parts of the footbridge