Abstract
In order to investigate the seismic performance of reinforced concrete high pier with hollow section, cyclic loading tests were conducted using 15 specimens of 1/10 reduced scale, whose reinforcement arrangement was very similar to that of real pier. In tests, the effects of following factors were studied: (1) arrangement and amount of transverse reinforcement; (2) diameter of intermidiate ties; (3) range of reinforcement; (4) shape of section at pier bottom; (5) shear span ratio; and (6) torsion. Through this study, it was found that designed ductility could be guaranteed by arranging transverse reinforcement according to the new design code. In addition, structural details of reinforcement arrangement were proposed based on relationships between ductility and arrangement of transverse reinforcement. Finally, measures for predicting ductility and hysteresis damping were discussed.
