SHEAR RESISTANCE OF REINFORCED CONCRETE BEAMS WITHOUT WEB REINFORCEMENT

The objective of this paper is to review the available data base and shear models for reinforced concrete beams without web reinforcement and select the most efficient model for the design code for concrete structures. The test results are used to establish the relationship between the shear capacity and parameters such as width and depth of the beam cross-section, longitudinal reinforcement ratio, and compressive strength of concrete. Five shear analysis models are considered: ACI 318 Sectional Shear Design Provisions Eq. 11-3 and Eq. 11-5 [1], Equation by Frosch [2], Equation by Zsutty [3], and Equation by the Eurocode 2 [4]. The best fit for the test data is provided by Zsutty's Equation. However, taking into consideration accuracy, required input data and simplicity, Frosch's equation could be recommended for the design code.