ABSTRACT
The commonly used normal reinforced concrete pile (RC) has large stiffness and is not suitable to be used for foundation in integr al abutment bridge (IA B). This pa per proposes a segm ental pile by combining RC pile as its lower portion and UHPC (ultra-h igh performance concrete) pile as its upper portion in order to increase the lateral flexibility. A trial design of an IAB using this new kind pile is performed in this paper by replacing the original 70c m × 50 (70) cm RC section at the top 3m of pile by 30cm × 30cm UHPC section. FEM of the whole bridge is then established by using software Midas. Analysis result shows that UHPC-RC segmental pile as a new type pile is suitable to be used in IAB.
