Footbridge over the Ovejas ravine in Alicante: An economical alternative made only of ultra-high-performance

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Title: Footbridge over the Ovejas ravine in Alicante: An economical alternative made only of ultra-high-performance

Author(s): Pedro Serna; Juan Ángel López; Esteban Camacho; Hugo Coll; Juan Navarro-Gregori

Publication: Special Publication

Volume: 310

Issue:

Appears on pages(s): 435-450

Keywords: Ultra-high-performance concrete (UHPC), truss footbridge, innovative design, durability, aesthetics.

Date: 3/17/2017

Abstract:
The 43.5-metre span truss footbridge over the Ovejas ravine in Alicante, made only of UHPFRC, has replaced a previous design in steel with a similar production cost, and also with improved durability and fewer maintenance costs. Thorough work was carried out in terms of material dosage, structural design and manufacturing process to minimise the total cost of the footbridge and to also make it safe, functional and pleasant. The footbridge design confers on fibres a very important role in structural behaviour. They are responsible for cracking control, ductility, confinement and, in some elements, they allow to dispense with any passive reinforcement. The most important aspects related to the structural analysis, structural design criteria, manufacturing process, cost distribution and final footbridge appearance are presented.