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Upgrading of a Reinforced Concrete Road Bridge
Current Issue
Volume 1, 2014
Issue 3 (July)
Pages: 51-56   |   Vol. 1, No. 3, July 2014   |   Follow on         
Paper in PDF Downloads: 17   Since Aug. 28, 2015 Views: 1497   Since Aug. 28, 2015
Janusz Hołowaty, Department of Civil Engineering and Architecture, West Pomeranian University of Technology Szczecin, Poland.
The upgrading of an existing older RC bridge located on a trunk road in a county town is described. The bridge was built at the end of the 1940s and was substandard due to its low capacity and lack of pedestrian sidewalks. The location of the bridge on a national highway required the introduction of a higher level of safety and load capacity for further service life. The bridge needed to be strengthened and widened. The existing span was used as a core element for an additional new, widened upper reinforced concrete overslab and strengthening reinforcement bars with shotcrete at the bottom of the span. The added top concrete overslab was made continuous with the abutments, and the bridge became integral. The bridge load bearing capacity was increased to the highest loading class in Poland. The paper describes the structural issues related to widening and strengthening the structure associated with the arrangement of the wider deck and introduction of the new sidewalks.
Concrete Bridge, Solid Slab Bridge, Upgrading, Bridge Widening
Hołowaty J. “Widening and upgrading of a RC slab bridge for improved sustainability”. fib Symposium Stockholm 2012: Concrete structures for Sustainable Community. KTH Royal Institute of Technology, Stockholm 2012: pp. 375-378.
Hołowaty J., “Widening and strengthening of concrete slab bridge in aspects of sustainability”, Konferencja: Dni Betonu 2012 – Tradycja i Nowoczesność. SPC, Wisła 2012: pp. 425-434, in Polish.
Hołowaty J. “Live Load Distribution for Assessment of Highway Bridges in American and European Codes”, Structural Engineering International, SEI Volume 22, Number 4, November 2012. International Association for Bridge and Structural Engineering (IABSE): 574-578.
Hołowaty J. “Integral structures for improving durability of bridges”, Mosty, No. 1, 2010: 62-65, in Polish
Kunz J., Ruiz M.F., Mutoni A. “Enhanced safety with post-installed shear reinforcement”. fib Symposium Tel - Aviv 2013: Engineering a Concrete Future: Technology, Modeling & Construction. IACIE and Israel Institute of Technology, Tel Aviv, 2013: pp. 317-320.
Reid I.L.K. “Concrete bridge strengthening and repair”. Thomas Telford, London 2009.
Tilly G. “Conservation of bridges”, Spon Press, London 2002.
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