Comparison crack resistance of RC beams with and without transverse reinforcement after shear testing

• Autorzy: Vegera Pavlo , Khmil Roman , Vashkevych Rostyslav , Blickharskyy Zinoviy

Identyfikatory

DOI

10.2478/cqpi-2019-0046

• Języki publikacji: EN

Abstrakty

EN

Main parameters, which characterize shear strength, are crack distribution, width of diagonal crack opening and angle of inclined crack. There are in this article, comparison crack resistant of testing reinforced concrete (RC) beams on the shear with such variable parameters like presence or absence internal reinforcement, different shear span, and presence or absence external composite reinforcement. Shear span (relative span to effective depth ratio) was acquired the following values: a/d=2, 1.5, 1. For internal reinforcement, rebar’s A240C with diameter 8 mm and steps 100 mm was chosen. The composite FRCM system was like external reinforcement with three stripe of composite fabric with width 70 mm and step 100 mm. Eight RC beams were tested. After testing, we discovered that the most influenced on the serviceability capacity was shear span. Internal transverse reinforcing increased shear strength on the same level and it was independent from shear span and other factors. Only quantity of reinforcing determine level of increasing shear capacity. FRCM system is efficient strengthening system, which significant increase shear crack resistant for RC beams. External FRCM reinforcing increase shear crack resistance on the same percentage and independent from presence or absence internal reinforcement.

Słowa kluczowe

EN

RC beam; crack resistant; shear; composite material; FRCM

PL

belka RC; odporność na pękanie; ścinanie; materiał kompozytowy; FRCM

• Wydawca: De Gruyter
• Czasopismo: Quality Production Improvement - QPI
• Rocznik: 2019
• Tom: Vol. 1, Iss. 1
• Strony: 342--349
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Vegera Pavlo

• Lviv Polytechnic National University, Department of Building Constructions and Bridges, Ukraine

autor

Khmil Roman

• Lviv Polytechnic National University, Department of Building Constructions and Bridges, Ukraine

autor

Vashkevych Rostyslav

• Lviv Polytechnic National University, Department of Building Constructions and Bridges, Ukraine

autor

Blickharskyy Zinoviy

• Lviv Polytechnic National University, Department of Building Constructions and Bridges, Ukraine

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).