Project’s name: PONTALUMIS - Development of a prototype of a pedestrian bridge in GFRP-ECC concept

Abstract

The objective of this project is to develop a prototype of a pedestrian bridge to be installed over any type of transportation axes. The conceived bridge deck presents a hybrid cross-section, constituted by two pultruded I shape glass fibre reinforced polymer (GFRP) profiles connected, at the level of the top flange, to a compressive layer of steel fibre reinforced self-compacting concrete (SFRSCC). The connection between the SFRSCC layer and the profiles is assured by a layer of epoxy adhesive and steel bolts. The SFRSCC layer significantly increases the stiffness of the structural system, since it is constituted by a material of high strength, ductility and energy absorption capacity. Since fibres used in the SFRSCC have eliminated the necessity of using conventional steel reinforcements, the thickness of the SFRSCC deck is 38 mm only. The main advantages of this new type of pedestrian bridge are low weight, quick assembly, easy to install, electromagnetic insulation properties, improved durability, low maintenance costs and larger life cycle.

Starting date: 06-07-2009

Completion date: April 2013

Budget: total 1.386.177,68€ (165.834,00€ for ISISE)

Team:
ISISE-EEUM: Joaquim A.O. Barros, José Sena-Cruz, Pedro Mendes
IST-UL: João R. Correia, Fernando A. Branco, José A. Gonilha
CiviTest: Delfina Gonçalves
ALTO: Tomé Santos, Mário Alvim

Consortium: Instituto para a Sustentabilidade e Inovação em Estruturas de Engenharia (ISISE); Instituto Superior Técnico – Universidade de Lisboa; ALTO Perfis Pultrudidos, Lda

More information: http://www.isise.net/site/index.php?module=publicProjects&target=details&id=50, http://alto.pt/?1&it=noticia_reg&co=888&mop=4