Application of photoelastic coating technique in tests of solid wooden beams reinforced with CFRP strips

• Autorzy: Nowak T. P. , Jankowski L. J. , Jasieńko J.

Warianty tytułu

PL

Zastosowanie metody elastooptycznej w badaniach drewnianych belek wzmocnionych taśmami CFRP

• Języki publikacji: EN

Abstrakty

EN

The paper presents selected results of tests carried out on hundred year old joists strengthened with carbon fibre reinforced polymers (CFRP). Besides the conventional electric-resistance extensometers (ERSG), the photoelastic coating technique (PCT) was used to measure strains in the reinforced (bonded) cross sections. No such attempt to apply PCT has been described in the literature before. The technique requires further studies to verify agreement between its results and the ones obtained by conventional measuring techniques.

PL

W pracy przedstawiono wybrane wyniki badań wzmocnionych stuletnich belek stropowych. Do wzmocnienia i odtworzenia nośności drewnianych belek z defektami - korozja biologiczna, inkluzje, skręt włókien, pęknięcia drewna - zastosowano taśmy CFRP (carbon fibre reinforced polymers). Obok tradycyjnych metod pomiarowych - czujniki elektrooporowe (ERSG) - do pomiaru odkształceń przekrojów wzmocnionych (zespolonych) zastosowano metodę elastooptycznej warstwy powierzchniowej (PCT). Dotychczas nie opisano takiej próby w literaturze przedmiotu. Metoda wymaga przeprowadzenia dalszych badań, mających na celu weryfikację zgodności z pomiarami metodami tradycyjnymi.

Słowa kluczowe

EN

timber structures; strengthening; CFRP; rehabilitation; photoelastic coating technique; four-point bending

PL

konstrukcje drewniane; wzmocnienie; rehabilitacja; zginanie czteropunktowe

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2010
• Tom: Vol. 10, no 2
• Strony: 53--66
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Nowak T. P.

autor

Jankowski L. J.

autor

Jasieńko J.

• Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

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