Footbridge over the Serio River, Italy
Customer Project
Due to the deterioration of some timber footbridges on the pedestrian and cycle path of the Seriana Valley in the province of Bergamo, Italy, it was necessary to refurbish them with more durable materials. Therefore, the mountain community of the Seriana Valley commissioned Studio Rota Nodari of Alzano Lombardo to design and manage the works for the replacement of the bridge over the Serio river between the municipalities of Cene and Gazzaniga, Italy.
| Investor |
Seriana Valley Mountain Community |
| Structural Design |
Studio Rota Nodari |
| Construction Works |
Cosmetics by Fantoni Srl |
Model Parameters
Model
Work Description
The structure is a double-span bridge of the 3rd category, with a pile in the riverbed and a total span of 69 m, achieved using painted steel box girders, and a deck made of recycled plastic material (WPC).
The design of the footbridge involved prior analysis of the existing reinforced concrete structures by means of non-invasive instrumentation using a calibrated spring sclerometer and ultrasound according to the SonReb methodology, as well as a cover meter. The structural analysis and design based on the original design documentation has shown that the strength values are compatible with the actions transmitted by the new structure; therefore, reinforcement of the supporting structures was not necessary.
The company Cosmet SrL was in charge of the construction works, the disassembly and disposal of the timber footbridge, and the assembly of the new structure. To optimize the transportation costs and reduce the assembly time (within two weeks), the structure is composed of elements with a maximum length of 14 m, assembled on site using bolted joints.
Project Location
Keywords
Bridge Steel footbridge Bolted joints
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