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Title |
Pull-out Capacity Of Cast-in-place Anchor for Construction of Precast Concrete Segment Arch
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Authors |
안진희(Jin-Hee Ahn) ; 임홍재(Hong Jae Yim) ; 방진수(Jin Soo Bang) ; 전석현(Seok Hyeon Jeon) |
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DOI |
https://doi.org/10.11112/jksmi.2020.24.2.94 |
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Keywords |
프리캐스트 콘크리트; 분절 아치; 선설치 앵커; 인발 성능; 앵커 직경 및 묻힘 깊이 precast concrete; segment arch; cast-in-place anchor; pull-out capacity; diameter and embedment depth of anchor |
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Abstract |
Precast concrete segment arch system has an economic and construct ability that combined with advantage of precast concrete and arch behavior. A precast concrete segment arch system with outrigger is consisted of segmented precast panels, a steel outrigger rib, and V-strip to connect precast panels with a steel outrigger rib and cast-in-place anchors in precast panels to connect V-strip should have sufficient pull-out capacity to form its arch shape by site lifting for assembled precast panels and outriggers. However, it is difficult to secure its embedment depth due to the relatively shallow thickness of precast panel. It can be also occurred that flexure deformation of precast panels caused by its pull-out behaviors. In this study, pull-out capacity of cast-in-place anchor was examined for construction of precast concrete segment arch system with outriggers. Therefore, a total of 24 precast panel specimens were fabricated to examine pull-out capacities of cast-in-place anchor in precast panels, and installation depth of anchors, diameter of anchors and wire mesh effects for the precast panel were examined. From this pull-out tests, its pull-out capacities and failure modes were evaluated and the type of the cast-in-place anchor applicable to the precast concrete segment panel arch system with outriggers was determined from comparison of the design specification values.
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