Selected Shear Models Based on the Analysis of the Critical Shear Crack for Slender Concrete Beams without Shear Reinforcement

• Published in: Materials Vol. 15; no. 22; p. 8259
• Main Authors: Kaszubska, Monika, Kotynia, Renata
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 21-11-2022; MDPI
• Subjects: Analysis; Concrete; concrete beams; Cracks; Fiber reinforced polymers; Fiber reinforcement; FRP reinforcement; Glass fiber reinforced plastics; modeling; Reinforced concrete; Reinforcing steels; Shear; Shear strength; Shear stress; slenderness; T section; test; United Kingdom; modeling; failure mode; shear; test; FRP reinforcement; concrete beams; slenderness
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma15228259

This paper is devoted to the shear of slender concrete beams flexurally reinforced with two types of reinforcement: steel and fiber-reinforced polymer (FRP) without transversal reinforcement. The paper presents four theoretical models for calculating the shear capacity of the collected test database and the authors' own research program, which contained 29 single-span, simply supported T-section beams reinforced with steel and glass fiber-reinforcement polymer (GFRP) bars. The paper presents a comprehensive analysis of the test results and modeling of design shear capacity in accordance with the selected theoretical models. The generalized assessment of computational analysis confirmed compatibility of the predicted and experimental results.