INFLUENCE OF FORM AND PLURAL ARRANGEMENT OF SHEAR KEY PUT ON PRECAST JOINT ON ITS SHEAR CHARACTERISTICS (PART 1 RELATION BETWEEN FORM AND SHEAR STRENGTH, ALSO FORM AND FAILURE CHARACTERISTICS) : Studies on shear behavior of precast joint

Abstract

This study was carried out to investigate an influence of form of shear key put on a wall-beam joint of precast concrete structure, especially a ratio of length to height of its bottom and side gradient, on its shear strength and failure pattern. This study was constiuued by finite element analysis and shear loading experiment. From FEM analysis, it was observed that shear strength and relations between shear force and slip dislocation of joint was influenced by form of shear key, and failure characteristics of shear key were influenced not only by ratio of length to height of its bottom but also by side gradient of shear key. From shear loading experiment, the same results were obtained.