A New Structural Behavior of Self Compacting Reinforced Concrete Beams Based on VTRR

Abstract

Nowadays, the use of Self–compacting Concrete (SCC) is spreading worldwide because of its very attractive properties in the fresh state as well as after hardening. Several attempts have been made in the recent years to study about the strength and behavior of SCC. However, only few studies have been conducted on the strength and behavior of structural elements made on Reinforced Self Compacting Concrete beam. Therefore, an attempt has been made in the present investigation to study the effect of the strength and behavior of structural beam elements subjected to flexure. The strength of members in the design and behavior of shear strength is an important issue in structural design.

There are several modes of failure in concrete structural members like shear, flexure. Due to the fragility of concrete structures, shear failure is one of the most important and undesirable modes of failure. Hence, Reinforced Concrete (RC) members are used to resist shear failure. Because of the complexity of shear mechanisms of reinforced concrete beams and various influencing parameters, it is difficult to establish an overall model to provide accurate estimation of shear strength. Hence, exact values of shear strength are unknown. Several empirical formulas are proposed in the literature and concrete codes for the prediction of RC beams resistance.

The American Concrete Institute (ACI) and Indian Standard (IS) code has been widely used in structural design. In the last decades, numerous works have been undertaken to improve the ability of empirical formula to predict the shear behavior of concrete structural member. Shear reinforcement is used in concrete beam to preserve the overall integrity of the concrete contribution allowing the development of additional shear forces.