To overcome the weakness of spread foundation in large space structure, the research of precast pile for replace spread foundation have been conducted. The new type of joint between PHC pile and steel column is named HAT Joint(Hollow hAlf-sphere cast-sTeel Joint). It connected PHC Pile by bolt that verification of bolt connection should be accomplished. In this paper, pull-out test and flexural performance for HAT Joint to verifying the bolt connection is explained. As a result, the pull-out and flexural capacities of bolt were checked to use in real structure. Furthermore, the equation of pull-out strength was proposed.

• 오진탁(고려대학교 건축사회환경공학과) | Oh, Jintak 주저자
• 김상봉(고려대학교 건축사회환경공학과) | Kim, Sang-Bong
• 김영식(영구조엔지니어링(주)) | Kim, Young-Sik
• 주영규(고려대학교 건축사회환경공학과) | Ju, Young K 교신저자