Abstract: The load-sliding curve and the shear stiffness of the shear studs can be derived from push-out tests,and furthermore the finite element analysis model of steel-concrete composite beams which take into account the sliding between the steel and concrete is establised the stud force of a three span through tied arch bridge under temperature and vehicle load is analyzed and the result shows that the influence of daily femperature effects is significant near the end cross beam.The time dependent behavior of the dead load effects due to the shrinkage and creep of the concrete is analyzed with the step by step method,and the calculation result shows that the stud force decreases along with the time.