The Study on Pullout Resistance Characteristics of the Compression Anchor by Pullout Tests on the Field

J. Ocean Eng. Technol. 2002;16(2):44-52.

현장실험에 의한 압축형 앵커의 인발거동특성 연구

홍석우

부산대학교 생산기술연구소

Keywords: Compression Anchor, Tension Anchor, Pullout Resistance Characteristics, Plastic Displacement, Progressive Failure

핵심용어: 압축형 앵커, 인장형 앵커, 인발거동특성연구, 소성변위, 진행성 파괴

Abstract

The mechanism of pullout resistance of compression anchor is analysed. This anchor is developed through the field pullout tests and the laboratory element test. The compression anchor is characterized by decrease of progressive failure, simple site work, economy and durability compared with tension anchor. The characteristics of compression anchor, compared with tension anchor. mainly are summarized as follows ; (1) The plastic displacement of anchor body is very small during pullout of anchor. (2) Total anchor length decreases by the shortening of free length; (3) The progressive failure is decreased.; (4) The safety factor for pullout resistance increases with time after construction of anchor.