Nowadays

steel-concrete composite beams are widely used in tall buildings and bridge structures because of advantages including low cross-section height

light dead weight and good ductility.The combination action between steel and composite beams is achieved through shear connectors in steel-concrete composite beams.The performance of composite beams greatly depends on the performance of shear connectors.Therefore

shear connectors are crucial elements in composite beams.Stud shear connectors are the most widely used connectors.The failure mode

failure mechanism

shear strength and load-slip relationship of stud shear connectors were systematically analyzed using software package ABAQUS in this paper

providing basis for the research on the performance of composite beams at elevated temperature. The solid elements were used to model the concrete

stud shear connector and steel beam.The thermal and mechanical properties of the components of the model were taken from Eurocode EN 1994-1-2.The model was verified by comparing the numerical results of temperature field and load-slip relationship with available experimental results from the literature.The shear strength reduction factor of stud shear connectors with different stud diameter and different concrete strength was determined.It was found that the calculation formula specified in the Eurocode EN 1994-1-2 to calculate the shear strength at elevated temperature is reasonable and able to predict the shear strength of stud shear connectors at elevated temperature.