Field Investigation on the First Bridge Deck Slab Reinforced with Glass FRP Bars Constructed in Canada

2005 ◽  
Vol 9 (6) ◽  
pp. 470-479 ◽  
Author(s):  
Ehab El-Salakawy ◽  
Brahim Benmokrane ◽  
Amr El-Ragaby ◽  
Dominique Nadeau
Author(s):  
Philippe Menétrey ◽  
Lionel Moreillon ◽  
Maléna Bastien-Masse

<p>Paudèze bridges are two 400‐m long parallel highway bridges located in Switzerland and opened to traffic in 1974. After over 40 years of service life, both bridges must be completely rehabilitated and strengthened while constantly maintaining 2 traffic lanes in both directions.</p><p>The bridge deck slab was strengthened using UHPFRC (Ultra‐High Performance Fiber Reinforced Concrete) struts. These inclined struts connect the end of the deck slab cantilever and the box girder web, forming a Warren truss. They thus reduce the bending moments in the deck slab and the existing steel reinforcement could be kept.</p><p>The joint between the prefabricated UHPFRC struts and the existing concrete web is done through a cast in‐ place UHPFRC beam, without any mechanical connection. Forces go through the joint and into the web by a combination of friction and compression forces.</p><p>Various experimental tests and numerical simulations confirmed the feasibility of this solution. In particular, the UHPFRC‐concrete web connection, the UHPFRC‐UHPFRC connection and the global behavior of the strut were tested and modelled.</p><p>The strengthening of the bridges decks took place between 2017 and 2019. The developed solution, using UHPFRC struts, was shown to be very effective to strengthen the deck and creates a rhythm in the structure.</p>


2014 ◽  
Vol 19 (4) ◽  
pp. 04013018 ◽  
Author(s):  
Shobeir Pirayeh Gar ◽  
Monique Head ◽  
Stefan Hurlebaus ◽  
John B. Mander

2018 ◽  
Vol 24 (6) ◽  
pp. 3898-3901
Author(s):  
Najiyu Abubakar ◽  
Redzuan Bin Abdullah ◽  
Ahmad Beng Hong Kueh ◽  
Mohamad Salleh Yassin

2003 ◽  
Vol 30 (5) ◽  
pp. 861-870 ◽  
Author(s):  
Ehab El-Salakawy ◽  
Brahim Benmokrane ◽  
Gérard Desgagné

A new concrete bridge in the Municipality of Wotton, Quebec, Canada, was constructed using fibre-reinforced polymer (FRP) bars as reinforcement for the deck slab. The new bridge is a girder type with four main girders simply supported over a span of 30.60 m. One half of the concrete deck slab was reinforced with carbon and glass FRP bars, and the other half with conventional steel bars. The design of the reinforced concrete deck slab was made according to sections 8 and 16 of the new Canadian Highway Bridge Design Code. The bridge was well instrumented at critical locations for long-term internal temperature and strain data collection using fibre optic sensors. The construction of the bridge was completed and the bridge opened for traffic in October 2001. The bridge was then tested for service performance using standard truckloads. Design, construction details, and the results of the field test and 1 year of remote monitoring are discussed. Under the same real service and environmental conditions, very similar behaviour was obtained from the FRP (glass and carbon) and steel bars.Key words: concrete bridges, deck slabs, FRP bars, field test, fibre optic sensors, remote monitoring, serviceability.


Author(s):  
Jiangpeng Shu ◽  
Mario Plos ◽  
Filip Nilenius ◽  
Kamyab Zandi ◽  
Niklas Bagge ◽  
...  

2015 ◽  
Vol 24 ◽  
pp. 09005 ◽  
Author(s):  
Barbara Markiewicz ◽  
Karol Pereta ◽  
Grzegorz Piatkowski

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