This article makes a simulation analysis of the depositing period of block number zero in Huangshagang Bridge

a prestressed concrete continuous beam bridge

with the boundary conditions of actual temperature inside and outside the box beam by using finite element analysis software ANSYS

and makes a comparison of the results of FEA with the measurements.By using ANSYS

the temporal and spatial distribution laws of stress field in the construction process are formulated.It is proved that the residual stress caused by temperature is relatively high because of the thickness of the roof and the bottom slab and the temperature difference.It is advised that the coverage of thermal insulation materials and the control of the temperature difference of thin bottom slab and roof are helpful to improve the post stress state of concrete

and attention should be paid to the time and the force magnitude of pre-stressed tension.