헤어핀 보강 선설치앵커의 정적 및 지진모의실험에 의한 전단 저항강도 평가 = Shear Strength of Hairpin Reinforced Cast-In-Place Anchors by Static and Seismic Qualification Tests

국문 초록 (Abstract)

본 연구에서는 비균열 및 균열콘크리트에 설치된 헤어핀 보강 선설치앵커의 정적 및 동적 저항강도 평가를 위한 연구를 수행하였다. 이를 위해 앵커 직경 30mm, 연단거리 150mm, 매입깊이 240mm에 D10 헤어핀 철근으로 보강한 시험체를 제작하였으며, 균열시험체는 전단하중에 직각방향과 평행방향 균열을 각각 고려하였다. 동적 강도 평가는 지진모의실험에 의하였으며 가력방법은 ACI 355.2의 기준을 적용하였다. 헤어핀 보강 앵커의 저항강도는 콘크리트 균열과는 상관성이 없었으며 동적 강도는 정적 강도와 동등한 수준을 보였다. 마지막으로 헤어핀 보강 앵커의 설계 강도에 대한 고찰을 제시하였다.

다국어 초록 (Multilingual Abstract)

This study evaluated the static and dynamic shear strength of cast-in-place anchors reinforced with hairpin bars in uncracked and cracked concrete. The anchors 30mm in diameter reinforced with D10 hairpin bar were designed with an edge distance of 150mm and an embedment depth of 240mm. The cracked specimens consisted of the orthogonal and parallel cracks to the direction of shear loads, respectively. The dynamic strength was evaluated using seismic qualification tests based on the ACI 355.2 standard. The shear strength of the hairpin reinforced anchor was hardly correlated to the concrete cracks and the dynamic strength was similar to its static shear strength. Finally, a consideration on the design strength of hairpin reinforced anchors was presented.

참고문헌 (Reference)

• 1 박용명, "지진모의실험에 의한 비균열 및 균열콘크리트에 매입된 비보강 선설치앵커의 전단 저항강도 평가" 한국강구조학회 27 (27): 347-357, 2015
• 2 박용명, "선설치앵커의 동적 전단하중에 대한 저항강도: 철근보강 앵커" 한국강구조학회 26 (26): 21-30, 2014
• 3 박용명, "균열콘크리트에 매입된 선설치앵커의 정적 전단하중에 대한 저항강도" 한국강구조학회 27 (27): 87-97, 2015
• 4 Lee, N. H., "Shear behavior of headed anchors with large diameters and deep embedments" 107 (107): 146-156, 2010
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• 6 ETAG 001, "Guideline for European Technical Approval of Metal Anchors for Use in Concrete" European Organization for Technical Approvals (EOTA) 2013
• 7 ACI 355. 2, "Evaluating the Performance of Post-installed Mechanical Anchors in Concrete" ACI Committee 2000
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• 11 ACI Committee 318-11, "Building Code Requirements for Structural Concrete and Commentary" Anchoring to Concrete, American Concrete Institute 2011
• 12 ACI Committee 318-08, "Building Code Requirements for Structural Concrete and Commentary" Anchoring to concrete, American Concrete Institute 2008
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