|
Title |
An Performance Evaluation of the Post-installed Anchor System According to the Freezing and Thawing of Concrete and the Corrosion of Anchor
|
|
Keywords |
후 설치 앵커 ; 동결 융해 시험 ; 부식 ; 인발실험 ; 콘크리트 ; 셋 앵커 ; CCD 법 Post-installed anchor ; Freeze-thawing test ; Corrosion ; Pull-out test ; Concrete ; Set anchor ; CCD method |
|
Abstract |
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.
|