Abstract
Presented herein is an experimental study on seismic resistance of rectangular steel reinforced concrete (SRC) columns confined with a new type of multi-spiral cage. The multi-spiral cage is a device of five interconnected spirals, named “5-spirals”, with a large spiral at the center and four small ones at the corners. The innovation of applying the 5-spirals to SRC column is to take its superiority in concrete confinement and efficiency in automatic production for the precast construction industry. Four full-scale SRC columns were tested under horizontal cyclic loading. All of the tested columns were capable of sustaining a drift angle up to 6% radians. The hysteresis loops observed from the cyclic loading tests indicated that the spirally confined SRC columns demonstrated excellent performances in both strength and ductility. The test results suggested that with significant saving of the confinement steel, the newly innovated 5-spirals can be successfully applied to the precast rectangular SRC columns.
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References
Weng C C. Characteristics of Taiwan’s first design code for steel reinforced concrete building structures. Civil & Hydraul Eng (Taiwan) (in Chinese), 2005, 32(5): 54–62
Chang K C, Yin Y L, Wang J C, et al. Experimental study of spiral application to rectangular columns. Engineering (Taiwan) (in Chinese), 2005, 78(3): 101–124
Wang B S. Studies on confinement of new rectangular concrete column. Master Dissertation, Institute of Civil Engineering, Taiwan University (in Chinese), 2004
Weng C C, Yen S Y, Lin J C. Influence of steel section on confinement reinforcements of SRC columns. J Civil & Hydraul Eng (Taiwan) (in Chinese), 1998, 10(2): 193–204
Nakamura T, Wakabayashi M. A study on the superposition method to estimate the ultimate strength of steel reinforced concrete column subjected to axial thrust and bending moment simultaneously. Bulletin of the Disaster Prevention Research Institute, Kyoto University, 1976, 26(242): 163–193
Furlong R W. AISC columns design logic Makes sense for composite Column, too. AISC Eng J, 1976, First Quarter: 1–7
Furlong R W. Column rules of ACI, SSLC and LRFD compared. ASCE J Struct Eng, 1983, 109(10): 2375–2386
Hamdan M, Hunaiti Y. Factors affecting bond strength in composite columns. Proc of the 3rd Inter Conference on Steel-Concrete Composite Structures, Fukoka, Japan, 1991, 231–218
Wakabayashi M. Research on earthquake resistant capacity of composite structures using high strength steel. Proc. of the 10th World Conference on Earthquake Engineering, Balkema, Rotterdam, 1992, 3425–3430
Mirza S A, Skrabek B W. Reliability of short composite beam-column strength interaction. ASCE J Struct Eng, 1991, 117(8): 2320–2339
Mirza S A, Skrabek B W. Statistical analysis of slender composite beam-column strength. ASCE J Struct Eng, 1992, 118(5): 1312–1332
Ricles J M, Paboojian S D. Seismic performance of steel encased composite columns. ASCE J Struct Eng, 1994, 120(8): 2474–2494
Mirza S A, Hyttinen V, Hyttinen E. Physical tests and analyses of composite steel-concrete beam-columns. ASCE J Struct Eng, 1996, 122(11): 1317–1326
Mirza S A, Tikka T K. Flexural stiffness of composite columns subjected to major axis bending. ACI Struct J, 1999, 96(1): 19–28
Mirza S A, Lacroix E A. Comparative strength analyses of concrete-encased steel Composite columns. ASCE J Struct Eng, 2004, 130(12): 1941–1953
Tikka T K, Mirza S A. Equivalent uniform moment diagram factor for composite columns in major axis bending. ASCE J Struct Eng, 2005, 131(4): 569–581
Tikka T K, Mirza S A. Nonlinear equation for flexural stiffness of slender composite columns in major axis bending. ASCE J Struct Eng, 2006, 132(6): 387–399
Yin Y L, Weng C C, Wang J C, et al. Experimental study on application of 5-spirals to rectangular SRC columns. Struct Eng (Taiwan) (in Chinese), 2007, 22(3): 3–27
American Concrete Institute. Building Code Requirements for Structural Concrete and Commentary (ACI 318M-05), Farmington Hills, Michigan, 2005
American Institute of Steel Construction. Seismic Provisions for Structural Steel Buildings, Chicago, Illinois, 2005
Taiwan Construction and Planning Agency. Design Code and Commentary for Steel Reinforced Concrete Structures (in Chinese). Taibei, 2004
Weng C C, Wang H S, Li R, et al. Experimental study and seismic resistance design of confining hoops for steel reinforced concrete columns. Struct Eng (Taiwan) (in Chinese), 2006, 21(3): 55–83
Weng C C. The development of design code for steel reinforced concrete building structures in Taiwan. Struct Eng (Taiwan) (in Chinese), 2005, 20(1): 3–30
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Weng, C., Yin, Y., Wang, J. et al. Seismic cyclic loading test of SRC columns confined with 5-spirals. Sci. China Ser. E-Technol. Sci. 51, 529–555 (2008). https://doi.org/10.1007/s11431-008-0067-z
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DOI: https://doi.org/10.1007/s11431-008-0067-z