- Volume 7 Issue 5
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Earthquake resistance of structural walls confined by conventional tie hoops and steel fiber reinforced concrete
- Eom, Taesung (Department of Architectural Engineering, Dankook University) ;
- Kang, Sumin (Department of Architectural Engineering, Chungbuk National University) ;
- Kim, Okkyue (Department of Architectural Engineering, Chungbuk National University)
- Received : 2014.08.27
- Accepted : 2014.09.27
- Published : 2014.11.25
In the present study, the seismic performance of structural walls with boundary elements confined by conventional tie hoops and steel fiber concrete (SFC) was investigated. Cyclic lateral loading tests on four wall specimens under constant axial load were performed. The primary test parameters considered were the spacing of boundary element transverse reinforcement and the use of steel fiber concrete. Test results showed that the wall specimen with boundary elements complying with ACI 318-11 21.9.6 failed at a high drift ratio of 4.5% due to concrete crushing and re-bar buckling. For the specimens where SFC was selectively used in the plastic hinge region, the spalling and crushing of concrete were substantially alleviated. However, sliding shear failure occurred at the interface of SFC and plain concrete at a moderate drift ratio of 3.0% as tensile plastic strains of longitudinal bars were accumulated during cyclic loading. The behaviors of wall specimens were examined through nonlinear section analysis adopting the stress-strain relationships of confined concrete and SFC.
structural wall;boundary element;transverse reinforcement;steel fiber concrete;seismic performance
Supported by : National Research Foundation of Korea (NRF)
- Wallace, J.W. and Orakcal, K. (2002), "ACI 318-99 Provisions for Seismic Design of Structural Walls", ACI Struct. J., 99(4), 499-508.
- American Concrete Institute (2011), Building Code Requirements for Structural Concrete, ACI 318-11 and ACI 318R-11, Farmington Hills, Michigan.
- ACI Committee 544 (1988), "Design considerations for steel fiber reinforced concrete", ACI Struct. J., 95(5), 563-580.
- American Concrete Institute (2001), Commentary on acceptance criteria for moment frames based on structural testing (ACI T1.1R-01), Farmington Hills, Michigan.
- Andre, F., Sylvain, P, and Jules, H. (1995), "Seismic Behavior of Steel-Fiber Reinforced Concrete Interior Beam-Column Joints", ACI Struct. J., 92(5), 543-552.
- Chaallal, O., Thibodeau, S., Lescelleur, J. and Malenfant, P. (1996), "Steel fiber or conventional reinforcement for concrete shear wall", Concrete Int., 18(6), 39-42.
- Craig, R.J., McConnell, J., Germann, H., Dib, N. and Kashani, F. (2005), "Behaviors of reinforced fibrous concrete columns", ACI Special Publication, SP81-4, 69-105.
- Filiatrault, A., Ladicani, K. and Massicotte, B. (1994), "Seismic performance of code-designed fiber reinforced concrete joints", ACI Struct. J., 91(5), 564-571.
- Foster, S.J. and Gilbert, R.I. (1996), "The design of non-flexural members with normal and high-strength concrete", ACI Struct. J., 93(1), 3-10.
- Nataraja1, M.C., Dhang, N. and Gupta, A.P. (1999), "Stress-strain curves for steel-fiber reinforced concrete under compression", Cement Concrete Compos., 21(5-6), 383-390 https://doi.org/10.1016/S0958-9465(99)00021-9
- Henager, C.H. (1977), "Steel fibrous ductile concrete joint for seismic-resistant structures", ACI Special Publication: Reinforced Concrete Structures in Seismic Zones, SP-53, American Concrete Institute, Detroit, 371-386.
- Jiuru, T., Chaobin, H., Kaijian, Y. and Yongcheng, Y. (1992), "Seismic behavior and shear strength of framed joint using steel-fiber reinforced concrete", J. Struct. Eng., ASCE, 118(2), 341-358. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:2(341)
- Mander, J.B., Priestley, M.J.N. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Eng., ASCE, 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
- Park, H. and Eom, T. (2006), "A simplified method for estimating the amount of energy dissipated by flexure-dominated reinforced concrete members for moderate cyclic deformations", Earthq. Spectra, 22(2), 459-490. https://doi.org/10.1193/1.2197547
- Park, H., Kang, S., Chung, L. and Lee, D. (2007), "Moment-curvature relationship of flexure-dominated walls with partially Confined End-Zones", Eng. Struct., 29(1), 33-45. https://doi.org/10.1016/j.engstruct.2006.03.035
- Paulay, T. and Priestley, M.J.N. (1992), Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley and Sons Inc., New York.
- Sullivan, T.J. (2010), "Capacity design considerations for RC frame-wall structures", Earthq. Struct., 1(4), 391-410 https://doi.org/10.12989/eas.2010.1.4.391
- Tastani, S.P. and Pantazopoulou, S.J. (2013), "Yield penetration in seismically loaded anchorages: effects on member deformation capacity", Earthq.Struct., 5(5), 527-552. https://doi.org/10.12989/eas.2013.5.5.527
- Thomsen, J.H. and Wallace, J.W. (1995), Displacement-Based Design of RC Structural Wall: An Experimental Investigation of Walls with Rectangular and T-shaped Cross-Sections, Report No. Cu/Cee-95-06, Department of civil and environmental Engineering at Clark University.
- Wallace, J.W. (1994), "A new methodology for seismic design of reinforced concrete shear walls", J. Struct. Eng., ASCE, 120(3), 863-884. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:3(863)
- Wallace, J.W. (1995), "Seismic design of RC structural walls. Part I: New code format", J. Struct. Eng., ASCE, 121(1), 75-87. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:1(75)
- Wallace, J.W. and Moehle, J.P. (1992), "Ductility and detailing requirements of bearing wall buildings", J. Struct. Eng., ASCE, 118(6), 1625-1644. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:6(1625)