The method of arch culvert, by using the pre-cast reinforced concrete arch, has been adopted at a two-level crossing in embankment of a road. That is for shortening of a period and improvement of construction. The statically determinate 2 hinge arch structure has a good stability toward earth pressure and an ability to reduce the bending moment. But investigation of seismic is required on introducing into Japan, happened earthquake frequently.
We carried out the model vibration experiment and FEM analysis. This study describes dynamic characteristic and proposes practical analysis model of the structure cross direction.