Static, dynamic and creep behaviour of a full-scale GFRP-SFRSCC hybrid footbridge

A three-year research project (Pontalumis) was carried out for the development of an innovative simply supported hybrid footbridge, with 11 m of length and 2 m of width. The footbridge is composed of two pultruded I-shaped glass fibre reinforced polymer (GFRP) girders (400×200(×15) mm2) bonded and b...

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Detalhes bibliográficos
Autor principal: Gonilha, José (author)
Outros Autores: Barros, Joaquim A. O. (author), Correia, João R. (author), Sena-Cruz, José (author), Branco, Fernando A. (author), Ramos, L. (author), Gonçalves, Delfina (author), Alvim, Mário R. (author), Santos, Tomé (author)
Formato: article
Idioma:eng
Publicado em: 2014
Assuntos:
Texto completo:http://hdl.handle.net/1822/31001
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/31001
Descrição
Resumo:A three-year research project (Pontalumis) was carried out for the development of an innovative simply supported hybrid footbridge, with 11 m of length and 2 m of width. The footbridge is composed of two pultruded I-shaped glass fibre reinforced polymer (GFRP) girders (400×200(×15) mm2) bonded and bolted to a 37.5 mm thick deck in steel fibre reinforced self-compacting concrete (SFRSCC). The present paper describes the material/structural concept of this footbridge, its design and construction process, and summarizes the response of the prototype when submitted to static short and long-term load tests, and dynamic load tests. The prototype was simple and fast to execute, presenting a reduced dead-weight of only about 3 tonf. The static and dynamic behaviour of the prototype as well as its long-term deflection fulfil standards’ requirements for footbridge structures and are in good agreement with conventional analytical and numerical design tools.