Cyclic behavior of connection between footing and concrete-infilled composite PHC pile

Jin-Wook Bang , Jung Hwan Hyun , Bang Yeon Lee , Yun Yong Kim

Abstract

The conventional PHC pile-footing connection is the weak part because the surface area and stiffness are sharply changed. The Composite PHC pile reinforced with the transverse shear reinforcing bars and infilled-concrete, hereafter ICP pile, has been developed for improving the flexural and shear performance. This paper investigates the cyclic behavior and performance of the ICP pile-footing connection. To investigate the behavior of the connection, one PHC and two ICP specimens were manufactured and then a series of cyclic loading tests were performed. From the test results, it was found that the ICP pile-footing connection exhibited higher cyclic behavior and connection performance compared to the conventional PHC pile-footing connection in terms of ductility ratio, stiffness degradation and energy dissipation capacity.

Key Words

PHC pile; transverse shear reinforcing bar; cyclic behavior; pile-footing connection

Address

Jin-Wook Bang, Jung Hwan Hyun and Yun Yong Kim — Department of Civil Engineering, Chungnam National University, 220 Gung-dong Yuseong-gu, Daejeon, 305-764, Republic of Korea
Bang Yeon Lee — School of Architecture, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju, 500-757, Republic of Korea

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