RANDE BRIDGE WIDENING

1
2
3
4
5
6
7
8

Location: Vigo. Pontevedra. Spain

Owner: Ministry of Public Works.

Client: Audasa

Type: Widening by cable-stayed composite decks

Design: 2007

Cost: € 36 Millones

Co-designer: Manuel Juliá Vilardell

Construction: 2017

Scope of work: Design of the cable-stayed bridge widening and technical assistance during construction

Description

In order to increase the traffic capacity of the Rande bridge in Vigo, a solution has been designed to enlarge de bridge by adding an extra lane on either side of the existing deck but outside of the portal frames of the pylons. Live traffic on the existing lanes may not be altered during the execution of the widening works.

Additional stays support the deck vertically while it is connected laterally to the existing deck at regular intervals using hinged triangular trusses. The summit of the towers has also been enlarged with a steel box structure so to anchor the new stays.

As part of the scope of work, the validity of the existing bridge structure has been analysed  as well as its upgrade to current standards.

Technical specifications

- Total length: 706 m
- Main span: 400 m
- Width of new decks: 2 x 6.65 m