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http://dx.doi.org/10.7781/kjoss.2015.27.3.347

Shear Resistance of Unreinforced Cast-In-Place Anchors in Uncracked and Cracked Concrete by Seismic Qualification Tests  

Park, Yong Myung (Dept. of Civil Engineering, Pusan National University)
Kim, Tae Hyung (Dept. of Civil Engineering, Pusan National University)
Kim, Dong Hyun (Dept. of Civil Engineering, Pusan National University)
Jo, Sung Hoon (Dept. of Civil Engineering, Pusan National University)
Lee, Jong Han (Dept. of Civil Engineering, Daegu University)
Publication Information
Journal of Korean Society of Steel Construction / v.27, no.3, 2015 , pp. 347-357 More about this Journal
Abstract
In this study, an experimental study was performed to evaluate the concrete breakout strength of unreinforced cast-in-place anchors by seismic qualification test under shear loading. The CIP anchors tested herein were 30mm in diameter with an edge distance of 150mm and an embedment depth of 240mm in uncracked and cracked concrete. The cracked specimen consisted of orthogonal and parallel crack to the loading direction, respectively. The dynamic loading sequence during the seismic qualification test was determined based on CSA N287.2, ACI 355.2 and ETAG 001 codes. After the dynamic loading, the static loading was applied until failure occurs. The shear resistance by seismic qualification tests showed almost the same strength as that obtained from the static tests in uncrcaked and cracked concrete, respectively. Meanwhile, the breakout depth did not reach $8d_0$, therefore the modified strength equation of ACI 318-11 could estimate properly the concrete breakout strength, which does not consider effective bearing length.
Keywords
Cast-in-place anchor; Seismic qualification test; Uncracked concrete; Cracked concrete; Shear resistance; Effective bearing length;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 ACI Committee 349 (2001) Code Requirements for Nuclear Safety Related Concrete Structures, ACI 349-01, Appendix B: Anchoring to Concrete, American Concrete Institute.
2 ACI Committee 318 (2002) Building Code Requirements for Structural Concrete and Commentary, ACI 318-02, Appendix D: Anchoring to Concrete, American Concrete Institute.
3 ETAG 001 (2013) Guideline for European Technical Approval of Metal Anchors for use in Concrete, European Organization for Technical Approvals (EOTA).
4 ACI Committee 318 (2011) Building Code Requirements for Structural Concrete and Commentary, Appendix D: Anchoring to Concrete, American Concrete Institute.
5 Lee, N.H., Park, K.R., and Suh, Y.P. (2010) Shear Behavior of Headed Anchors with Large Diameters and Deep Embedments, ACI Structural Journal, Vol.107, No.4, pp.146-156.
6 박용명, 전명희, 최명국, 김철환, 김인기(2012) 전단력을 받는 선설치 앵커볼트의 콘크리트 파열파괴강도 평가 연구, 한국강구조학회논문집, 한국강구조학회, 제24권, 제2호, pp.207-215. (Park, Y.M., Jeon, M.H., Choi, M.K., Kim, C.H., and Kim, I.G. (2012) A Study on the Concrete Breakout Capacity of CIP Anchor Bolts Under Shear Loading, Journal of Korean Society of Steel Construction, KSSC, Vol.24, No.2, pp.207-215 (in Korean).)
7 박용명, 강문기, 김동현, 이종한, 강충현(2014) 선설치앵커의 동적 전단하중에 대한 저항강도: 비보강 앵커, 한국강구조학회논문집, 한국강구조학회, 제26권, 제1호, pp.11-20. (Park, Y.M., Kang, M.G., Kim, D.H., Lee, J.H., and Kang, C.H. (2014) Shear Resistance of CIP Anchors Under Dynamic Loading: Unreinforced Concrete, Journal of Korean Society of Steel Construction, KSSC, Vol.26, No.1, pp.11-20 (in Korean).)
8 박용명, 주호중, 김동현, 강문기, 이종한(2015) 균열콘크리트에 매입된 선설치앵커의 정적 전단하중에 대한 저항강도, 한국강구조학회논문집, 한국강구조학회, 제27권, 제1호, pp.87-97. (Park, Y.M., Ju, H.J., Kim, D.H., Kang, M.G., and Lee, J.H. (2015) Static Shear Resistance of Cast-In-Place Anchors in Cracked Concrete, Journal of Korean Society of Steel Construction, KSSC, Vol.27, No.1, pp.87-97 (in Korean).
9 ACI Committee 318 (2008) Building Code Requirements for Structural Concrete and Commentary, ACI 318-08, Appendix D: Anchoring to Concrete, American Concrete Institute.)
10 한국콘크리트학회(2012) 콘크리트구조기준해설, 부록 II 콘크리트용 앵커. (Korean Concrete Institute (2012) Concrete Structure Design Code and Commentary, Appendix II Anchoring to Concrete (in Korean).)
11 Hallowell, J.M. (1996) Tensile and Shear Behavior of Anchors in Uncracked Concrete Under Static and Dynamic Loading, Master Thesis, The University of Texas at Austin.
12 Klingner, R.E., Mendonca, J.A., and Malik, J.B. (1982) Effect of Reinforcing Details on the Shear Resistance of Short Anchor Bolts Under Reversed Cyclic Loading, ACI Journal, Vol.79, No.1, pp.3-12.
13 CSA N287.2 (1998) Material Requirements for Concrete Containment Structures for CANDU Nuclear Power Plants, Canadian Standards Association, Rexdale, Ontario.
14 ACI 355.2 (2000) Evaluating the Performance of Post-installed Mechanical Anchors in Concrete, Reported by ACI Committee 355.
15 Gross, J.H., Klingner, R.E., and Graves III, H.L. (2001) Dynamic Anchor Behavior of Single and Double Near-Edge Anchors Loaded in Shear, Connections Between Steel and Concrete (Int. Conference organized by University of Stuttgart, Co-sponsored by ACI, fib, IABSE, edited by R. Eligehausen), RILEM Publications S.A.R.L., pp.498-508.
16 Ghobarah, A. and Aziz, T.S. (2004) Seismic Qualification of Expansion Anchors to Canadian Nuclear Standards, Nuclear Engineering and Design, Vol.228, pp.377-392.   DOI   ScienceOn
17 Petersen, D., Lin, Z., and Zhao, J. (2013) Behavior and Design of Cast-in-Place Anchors under Simulated Seismic Loading, Draft Final Report (Vol. I) Cyclic Behavior of Single Headed Anchors, Dept. of Civil Eng., University of Wisconsin, Milwaukee.