A practical analytical research on cracking behavior of concrete perforated brick masonry

Abstract:

Aimed at the cracking of concrete perforated brick wall,a practical analytical method was proposed,in which the equivalent fracture toughness was solved based on the vertical crack model.At first,based on the modified shear lag theory and by introducing the variable layer in different zones,the layered shear lag model was built.Then,an analytical form to solve the equivalent fracture toughness of concrete perforated brick wall was derived based on the energy law.The results of the related experiments show that the analytical solutions are more robust than the numerical solutions.In the case of varying sub-layers,the equivalent fracture toughness is a size-independent fracture parameter.So the suggested method is feasible and applicable to forecast concrete perforated brick masonry’s cracking and destroying.