Badania doświadczalne kablobetonowych dźwigarów wzmocnionych materiałami kompozytowymi CFRP
Experimental tests of post-tensioned girders strengthened with prestressed CFRP composites
Author(s): Michał Staśkiewicz, Renata Kotynia, Julien Michels, Christoph Czaderski, Masoud MotavalliSubject(s): Architecture, Geography, Regional studies
Published by: Biblioteka Politechniki Lubelskiej
Keywords: strengthening; flexure; bridge girder; post-tensioning; prestressing; CFRP; laminate
Summary/Abstract: The paper presents a research carried out within the framework of the Polish-Swiss “Tulcoempa” project, carried out by Lodz University of Technology and EMPA Swiss Federal Laboratories for Materials Science and Technology. The main goal of the project was to perform the first field application of an innovative, anchorless flexural strengthening with use of prestressed CFRP laminates on an existing bridge in Poland. Laboratory tests were conducted to verify the efficiency of the strengthening of two real-scale, 18.4m long, post-tensioned bridge girders reconstructed at EMPA institute. Flexural strengthening was successful and resulted in an increase of the member’s load capacity by 24% and reduction of the midspan deflection by more than 60%.
Journal: Budownictwo i Architektura
- Issue Year: 13/2014
- Issue No: 3
- Page Range: 159-166
- Page Count: 8
- Language: Polish