Experimental studies on eigenfrequencies and deflections of reinforced concrete beams strengthened with CFRP strips

Vol. 529 (9) 2016 / wtorek, 23 października, 2018

(in Polish)

M. Musiał

DOI: 10.15199/33.2016.09.24

Volume 529: Issue 9
Pages 68-69
Accepted for publication: 04.07.2016 r.

In the paper experimental studies on reinforced concrete beams strengthenedwithCFRPstrips are described.Unstrengthened beamswere loaded initially to 80%of load capacity, and then external CFRP strengthening was applied. Strengthened beams were loaded till their failure.During the tests eigenfrequencies and deflections of beams were measured. It was observed that composite stripes had inhibited the decrease of eigenfrequencies as a consequence of loading, which occurs in case of unstrengthened beams.

Keywords: RC beams, strengthening, CFRP stripes, eigenfrequency, deflection.
  1. Baghiee Neda,M. Reza Esfahani, Kazem Moslem. 2009. „Studies on damage and FRP strengthening of reinforced concrete beams by vibrationmonitoring”. Engineering Structures 31 (4): 875 ÷ 893.
  2. Hoła Jerzy, Krzysztof Schabowicz. 2010. „State-of-the-art non-destructive methods for diagnostic testing of building structures – anticipated development trends”. Archives of Civil andMechanical Engineering 10 (3): 5 – 18.
  3. Meier Urs. 1995. „Strengthening of structures using carbon fibre/epoxy composites”. Construction and Building Materials 9 (6): 341 ÷ 351.
  4. Musiał Michał. 2012. „Static and dynamic stiffness of reinforced concrete beams”.Archives of Civil and Mechanical Engineering 12 (2): 186 ÷ 191.
  5. Musiał Michał, Jacek Grosel. 2013. „Identyfikacja schematu stanowiska badawczego z wykorzystaniemoperacyjnej analizymodalnej”. Materiały Budowlane 487 (3): 42 ÷ 44.
  6. Trapko Tomasz. 2011. „Identyfikacja parametrów wytrzymałościowych kompozytów węglowych CFRP”. Materiały Budowlane 467 (7): 29 ÷ 31.
  7. Xia Yong, Hong Hao, Giovanna Zanardo, Andrew Deeks. 2006. „Long term vibration monitoring of an RC slab: Temperature and humidity effect”. Engineering Structures 28 (3): 441 ÷ 452.
  • dr inż. Michał Musiał Politechnika Wrocławska, Wydział Budownictwa Lądowego i Wodnego

dr inż. Michał Musiał

musial@pwr.edu.pl

Full paper is available at Publisher house SIGMA-NOT Sp. z o.o. webpage

DOI: 10.15199/33.2016.09.24