A platform for research: civil engineering, architecture and urbanism
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Strips of carbon fibre reinforced polymer (CFRP) measuring just 8 mm in thickness have been used to strengthen a road bridge in Rochdale, UK. The CFRP strips are only 20 % of the weight of similar products made from high-strength steel but are at least four times as strong. Their high strength-to-weight ratio makes the CFRP strips easy to handle and reduces installation costs, according to the project's consultant, the Mouchel Group of West Byfleet. Road traffic weighing up to 17 t used the bridge normally while the repairs were carried out beneath. Moreover, the total cost of the repairs was no more than it would have cost the local council to have installed temporary traffic signals if conventional bridge-strengthening techniques had been used. The heavilv used Slattocks Canal Bridge is 64 years old and needed to be strengthened in order to take vehicles up to 40 t. To do so, the contractor used a technique devised by Mouchel whereby the laminated strips of CFRP were bonded to the bottom flanges of the existing rolled-steel joints. Mouchel describes this approach to the problem as the first ever of its kind.
Strips of carbon fibre reinforced polymer (CFRP) measuring just 8 mm in thickness have been used to strengthen a road bridge in Rochdale, UK. The CFRP strips are only 20 % of the weight of similar products made from high-strength steel but are at least four times as strong. Their high strength-to-weight ratio makes the CFRP strips easy to handle and reduces installation costs, according to the project's consultant, the Mouchel Group of West Byfleet. Road traffic weighing up to 17 t used the bridge normally while the repairs were carried out beneath. Moreover, the total cost of the repairs was no more than it would have cost the local council to have installed temporary traffic signals if conventional bridge-strengthening techniques had been used. The heavilv used Slattocks Canal Bridge is 64 years old and needed to be strengthened in order to take vehicles up to 40 t. To do so, the contractor used a technique devised by Mouchel whereby the laminated strips of CFRP were bonded to the bottom flanges of the existing rolled-steel joints. Mouchel describes this approach to the problem as the first ever of its kind.
Carbon fibre reinforced polymers used to strengthen steel road bridges more quickly, cheaply and easily
Faserverbundwerkstoffe für die Verstärkung von Straßenbrücken
Luke, S. (author)
Technical Textiles International ; 9 ; 20
2000
1 Seite, 1 Bild
Article (Journal)
English
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