Abstract
The decrease of the support function causes the fatigue crack to occur in the sole plate weld. We are concerned about the decrease of the support function having bad influence on superstructure. However, the concrete influence level is hardly examined.
In this study, the loading test is performed in bridges where the support function is normal and deteriorates. We identify consistency with FEM analysis values as these test results. FEM analysis is carried out about the state that design live load and temperature load acted on in the existing steel composite I girder bridge where the support function deteriorated.
We examined an influence degree of the decrease of the support function from the result.
