Journal
COMPOSITE STRUCTURES
Volume 118, Issue -, Pages 496-509Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2014.08.009
Keywords
GFRP pultruded profiles; Steel fibre reinforced self-compacting concrete (SFRSCC); Hybrid footbridge; Design; Construction; Experimental tests
Categories
Funding
- ICIST
- ISISE
- FCT [SFRH/BD/70041/2010]
- ADI [2009/003456]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/70041/2010] Funding Source: FCT
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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 x 200 ( x 15) mm(2)) 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 summarises 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. (C) 2014 Elsevier Ltd. All rights reserved.
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