Ocena wybranych normowych modeli przyczepności kompozytów FRP do wzmacniania betonu

• Autorzy: Krzywoń Rafał

Identyfikatory

DOI

10.5604/01.3001.0053.8881

Warianty tytułu

EN

Assessment of selected, standardized bond models of FRP composites for concrete strengthening

• Konferencja: XII Konferencja Naukowa Połączenia i węzły w konstrukcjach metalowych i zespolonych, 12-14 października 2023, Bezmiechowa Górna
• Języki publikacji: PL

Abstrakty

PL

Przyczepność jest jednym z kluczowych czynników decydujących o efektywności zewnętrznego wzmocnienia kompozytowego konstrukcji betonowej. Wykorzystywane w projektowaniu normy stosują różne modele matematyczne do wyznaczania siły przyczepności taśm i mat FRP. Otrzymywane w obliczeniach wyniki mogą różnić się nawet ponad dwukrotnie. Artykuł przedstawia ocenę dokładności przewidywania siły przyczepności dla wybranych wytycznych projektowania w świetle badań przyczepności ponad 800 próbek. Wyniki analiz metodą Demerit wskazują, że najlepsze modele przyczepności proponują szwajcarska norma SIA 166 i włoska CNR-DT200.

EN

Bond is one of the key issues determining the effectiveness of external composite strengthening of a concrete structure. The standards used in designing use various mathematical models to predict the bond strength of FRP overlays. The results obtained in the calculations may differ even two times. The paper presents an assessment of the accuracy of bond force prediction for selected design guidelines. The results of over 800 samples taken from the literature were used for comparison. The results of analyses show that the best bond model is recomended by the Swiss standard SIA 166 and CNR-DT200.

Słowa kluczowe

PL

kompozyt; polimer zbrojony włóknami; wzmocnienie zewnętrzne; beton; przyczepność

EN

composite; fibre reinforced polymer; external strengthening; concrete; bond force

• Wydawca: Fundacja Polskiego Związku Inżynierów i Techników Budownictwa
• Czasopismo: Inżynieria i Budownictwo
• Rocznik: 2023
• Tom: R. 79, nr 9-10
• Strony: 533--537
• Opis fizyczny: Bibliogr. 48 poz., il., tab.

Twórcy

autor

Krzywoń Rafał

• Politechnika Śląska, Wydział Budownictwa

• https://orcid.org/0000-0002-9137-6075

Bibliografia

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