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An Performance Evaluation of the Post-installed Anchor System According to the Freezing and Thawing of Concrete and the Corrosion of Anchor

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한국구조물진단유지관리공학회 논문집 (Journal of The Korea Institute for Structural Maintenance and Inspection)
한국구조물진단유지관리공학회 (The Korea Institute For Structural Maintenance and Inspection)
초록

In this study, performance of the post-installed anchor system was evaluated with reduced strength of concrete and anchor. One of the post-installed anchors was selected to performance evaluation. Concrete strength was reduced by freeze-thawing test, and the post-installed anchor strength was reduced by corrosion test. The post-installed Anchor was installed in concrete of freezing and thawing and original concrete, and corroded anchor was installed in original concrete only. Anchor diameter and installation depth of the anchor were the variable for each specimen. Performance of post-installed anchor system of each specimen was evaluated by pullout test. Anchor diameter and installation depth of anchor, it may affect the performance of the post-installed anchor system from the experimental test results. Fracture mode of each post-installed anchor system had occurred differently depending on the durability of concrete and anchor. The anchor pullout strength from the experimental test results was used in order to compare with the results of CCD (Concrete Capacity Design) method, and CCD equation was modified. Modified equation was able to predict the anchor pullout strength of post-installed anchor system in Original concrete and freezing and thawing of concrete.

저자
  • 권민호(종신회원, 경상대학교 토목공학과 공학연구원 교수) | Min-Ho Kwon
  • 김진섭(정회원, 경상대학교 토목공학과 박사과정) | Jin-Sup Kim 교신저자
  • 정우영(정회원, 강릉원주대학교 토목공학과 부교수) | Woo-Young Jung
  • 권상원(정회원, 경상대학교 토목공학과 석사과정) | Sang-Won Kwon