Abstract
This paper proposes an analytical model for determining the fracture load of concrete structures whose deformation and fracture behaviors are governed by occurring and growing cracks. The proposed model computes the evolution of crack, by considering the localization of cracking in brittle materials such as concrete. Furthermore, by modeling the relationship between stress transmitted to cracked surfaces and crack opening width, it is possible to follow up also the crack evolution under composite stresses. Analytical study on the previous reinforced concrete experiments using the proposed model has demonstrated that the model is capable of determining the shear strength of reinforced concrete beams which undergo diagonal tensile fracture.
