By selecting the rigid frame construction for a bridge, the substantial advantages which are, for example, low building and maintenance costs, high earthquake resistance, comfortable driving and so on, could be realized. The Shimotaniike bridge in Hanwa Expressway is under construction as a hybrid frame bridge where the spread foundation was adopted because of a rock ground. To get an economical solution for the connecting method between steel girder and reinforced concrete abutment, a new connection detail by using the PBL (Perfobond Leistung) shear connector was developed and also its loading test using large specimens was carried out. In this paper, first, the outline and design concept of Shimotaniike Bridge system are reported. Next, new connection detail and its design method are proposed and discussed based on the loading test results.
