Comparison of structural characteristics for different types of cable-supported prestressed concrete bridges

H. Otsuka, Graduate School of Civil Engineering, Kyushu University
T. Wakasa, New Structural Engineering Ltd
J. Ogata, Ingerosec Corporation
W. Yabuki, Graduate School of Civil Engineering, Kyushu University
D. Takemura, Graduate School of Civil Engineering, Kyushu University

Following recent developments in prestressed concrete bridges, this paper examines extradosed and cable-stayed structures, particularly with regard to the evaluation of seismic performance and the economical considerations in a seismic region, and provides designers with guidance for choosing the most appropriate structure.