FORMULATION FOR LOAD-SLIP RELATIONSHIPS OF HEADED STUD CONNECTOR

Abstract

Formulation for load-slip relationship of shear connector is necessary to rational design of composite structures. Pushout tests of headed stud connector were carried out under various stud diameter, stud strength, stud height/diameter ratio and concrete strength. Load-slip relationship can be represented by one equation with dividing shear force by shear strength and slip by stud diameter. The form of load-slip relationship depends on concrete strength, stud height/diameter ratio and stud strength. Equations for the enveloped curve of load-slip relationship taking account of these effects and slip-residual slip relationship were proposed.