Abstract: In this paper, the structure field test and test results of Hanzhuang sluice highwaybridge are introduced, with the help of finite strip method calculation, the deformationcharacteristic of the slab consisted of RC cored voided slabs and T beams were analyzed.with the test results and calculation,thc load distribution coefficient and dynamic coefficient were obtained,on tile basis of these,the bearing capacity of highway bridge slab wasassessed.