Effects of Continuity Plate and Transverse Reinforcement on Cyclic Behavior of SRC Moment Connections
Publication: Journal of Structural Engineering
Volume 133, Issue 1
Abstract
Two exterior moment connections with a steel-encased reinforced concrete (SRC) column and a steel beam were tested to evaluate the cyclic performance. Continuity plates were eliminated in the first specimen, and about 60% of the transverse reinforcement as specified in the ACI 318 was used in the connection region. Two steel doubler plates offsetting from the column web were used to enhance the shear resistance of the connection. The second specimen used a steel jacket to confine the concrete in the connection region and continuity plates were extended from the steel column to the steel jacket to mobilize the shear resistance of the latter; no transverse reinforcement was used. Full-scale test results showed that both specimens were able to reach an interstory drift ratio in excess of 4%. An analytical model was developed for the concrete shear force transfer mechanism in the connection of the second specimen. This study showed that: (1) using either doubler plates or jacket plates was effective to enhance the shear capacity in the connection, (2) concrete shear resistance degraded before the maximum applied load was reached in the first specimen, (3) the concrete was mobilized to resist shear in the second specimen, and (4) transverse reinforcement as required by the ACI 318 (1995) can be relaxed as long as another shear-resisting mechanism such as doubler plates or jacket plates is provided.
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Acknowledgments
This research project was sponsored by National Science Foundation (Award No. NSFCMS-9632498) with Dr. Shih-Chi Liu as the Program Director. Mr. Ali Sadre and Professor Keh-Chyuan Tsai provided technical advice throughout the testing program.
References
American Concrete Institute-American Society of Civil Engineers (ACI-ASCE), Connection Committee 352. (1976). “Recommendations for design of beam-column connections in monolithic reinforced concrete structures.” ACI J., 73(7), 375–393.
American Concrete Institute (ACI). (1995). “Building code requirements for structural concrete (ACI 318–95) and commentary (ACI 318R-95).” American Concrete Institute, Farmington Hills, Mich.
American Institute of Steel Construction (AISC). (1997). Seismic provisions for structural steel buildings, American Institute of Steel Construction, Chicago.
American Society of Civil Engineers (ASCE) Task Committee. (1994). “Guidelines for design of joints between steel beams and reinforced concrete columns.” J. Struct. Eng., 120(8), 2330–2357.
Applied Technology Council (ATC). (1992). “Guidelines for cyclic seismic testing of components of steel structure for buildings.” Rep. No. ATC-24, Applied Technology Council, Redwood City, Calif.
Architectural Institute of Japan (AIJ). (1987). Standards for structural calculation of steel reinforced concrete structures, Architectural Institute of Japan.
Architectural Institute of Japan (AIJ). (1994). Design guidelines for composite RCS connections, Architectural Institute of Japan.
Bentz, E. C., and Collins, M. P. (2000). “Moment-curvature analysis program response.” Dept. of Civil Engineering, Univ. of Toronto, Canada.
Chou, C. C., and Uang, C. M. (2001). “Experimental and analytical studies of two types of moment connections for composite special moment frames.” Rep. No. SSRP 98–12, Dept. of Structural Engineering, Univ. of California, San Diego.
Chou, C. C., and Uang, C. M. (2002). “Cyclic performance of a type of steel beam to steel-encased reinforced concrete column moment connection.” J. Constr. Steel Res., 58, 637–663.
Deierlein, G. G. (1988). “Design of moment connections for composite framed structures.” Doctoral thesis, Dept. of Civil Engineering, Univ. of Texas, Austin, Tex.
Engelhardt, M. D., Winneberger, T., Zekany, A. J., and Potyraj, T. J. (1998). “Experimental investigation of dogbone moment connections.” Eng. J., 35(4), 128–139.
FEMA. (1997). “Recommended provisions for the development of seismic regulations for new buildings.” FEMA-222A, National Earthquake Hazards Reduction Program, Washington, D. C.
Izaki, Y., Yamanouchi, H., Nishiyama, I., and Fukuchi, Y. (1988). “Seismic behavior of girder-to-column connections developed for an advanced mixed structure system.” Proc., 9th World Conf. on Earthquake Eng., IV, Tokyo-Kyoto, Japan, 707–712.
Kanno, R. (1993). “Strength, deformation, and seismic resistance of connections between steel beams and reinforced concrete columns.” Doctoral thesis, School of Civil and Environmental Engineering, Cornell Univ., Ithaca, NY.
Krawinkler, H. (1978). “Shear in beam-column joints in seismic design of steel frames.” Eng. J., 15(3), 82–91.
Kuramoto, H. (1996). “Seismic resistance of through column type connections for composite RCS systems.” Proc., 11th World Conf. on Earthquake Eng., 1755–1762.
Mattock, A. H., and Hawkins, N. M. (1972). “Shear transfer in reinforced concrete-recent research.” PCI J., 17(2), 20–39.
Minami, K., and Nishimura, Y. (1980). “Hysteretic characteristics of beam-to-column connections in steel reinforced concrete structures.” Proc., 7th World Conf. on Earthquake Eng., II, 305–308.
Sakaguchi, N., Tominaga, H., Murai, Y., Takase, Y., and Shuto, K. (1988). “Strength and ductility of steel beam-RC column connection.” Proc., 9th World Conf. on Earthquake Eng., IV, Tokyo-Kyoto, Japan, 713–718.
Sheikh, T. M. (1987). “Moment connections between steel beams and concrete columns.” Doctoral thesis, Dept. of Civil Engineering, Univ. of Texas at Austin, Tex.
Wakabayashi, M., Nakamura, T., and Morino, S. (1973). “An experimental of steel reinforced concrete cruciform frame.” Bulletin of Disaster Prevention Research Institute, Kyoto Univ., Japan, 23, 75–110.
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© 2007 ASCE.
History
Received: Mar 1, 2004
Accepted: Jun 7, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
Notes
Note. Associate Editor: Sherif El-Tawil
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