Issues of thin-walled sigma beams strengthened by CFRP tape in the context of experimental and numerical studies

• Autorzy: Rzeszut K. , Szewczak I. , Różyło P.
• Języki publikacji: EN

Abstrakty

EN

In this paper, the results of laboratory tests and numerical analyses of thin-walled beams strengthened with carbon fiber reinforced polymer (CFRP) are presented. In particular, tensile tests of the steel and carbon fiber Sikar CarboDurr S tapes were conducted. Full scale laboratory tests included six sigma beams, each 140 mm high, 3 m long and with a wall thickness of 2.5 mm. The laboratory specimens were assumed as simply supported, single-span beams subjected to a uniformly distributed load. Four of the tested beams were reinforced with carbon fiber tapes, and the other two were not reinforced and were considered as reference beams. Numerical models of the considered beams were developed in the Abaqus program and subjected to validation and verification based on laboratory results. In the paper, special attention is paid to the evaluation of the possibility of increasing the critical load capacity while simultaneously limiting displacements of the beams by appropriate positioning of CFRP tape. The work completes with comparative analysis and conclusions.

Słowa kluczowe

EN

thin-walled beam; strengthened beam; CFRP tape

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2018
• Tom: Vol. 66, iss. 1
• Strony: 79--91
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Rzeszut K.

• Poznan University of Technology Institute of Structural Engineering Marii Skłodowskiej-Curie 5, 60-965 Poznań, Poland

autor

Szewczak I.

• Lublin University of Technology Faculty of Civil Engineering and Architecture Nadbystrzycka 38D, 20-618 Lublin, Poland

autor

Różyło P.

• Lublin University of Technology Department of Machine Design Nadbystrzycka 38D, 20-618 Lublin, Poland

Bibliografia

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• 3. FRP International, The Official Newsletter of the International Institute for FRP in Construction, 1(2), 2014, http://iifc-hq.org/wp-content/uploads/2011/01/news vol1- issue2.pdf.
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• 6. Liu H., Xiao Z., Zhao X.L., Al-Mahaidi R., Prediction of fatigue life for CFRPstrengthened steel plates, Thin-Walled Structures, 47(10): 1069–1077, 2009.
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• 12. Rzeszut K., Szewczak I., Experimental studies of sigma thin-walled beams strengthen by CFRP tapes, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering, 11(7): 32–39, 2017.
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• 14. Sayed-Ahmed E.Y., Strengthening of thin-walled steel I-section beams using CFRP strips, Advanced Composite Materials in Bridges and Structures, Conference Paper, 4th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS IV), Calgary, Alberta, Canada, 2004.
• 15. Szewczak I., Rzeszut K., Pilot experimental studies of thin-walled Sigma steel beams reinforced with CFRP tapes [in Polish: Pilotażowe badania eksperymentalne cienkościennych belek stalowych typu sigma wzmocnionych taśmami CFRP], Materiały Budowlane, 531(11): 84–85, 2016.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).