Numerical Analysis to the Adhesive Interface Effects to Ultimate Bearing Capacity of Superimposed Shear Wall

Abstract:

Formulas which were most commonly used to calculate interface shear strength specified in foreign codes were summarized, the contact interaction between the precast concrete layer and the concrete core is modelled using a cohesive property interaction to define the separation behavior between the two surfaces. The result shows that the tractionseparation models for surfaces can reflect the level of delamination and damage in interface between the precast concrete layer and the concrete core. There is small influence on ultimate bearing capacity of superimposed shear wall under different axial compression ratio, the degree of damage and delamination in the interface of superimposed shear walls with castinsitu boundary element is lower than the superimposed shear walls with prefabricated boundary element.