Seismic Response of Concentrically Braced Steel Frames Made with Rectangular Hollow Bracing Members
Publication: Journal of Structural Engineering
Volume 129, Issue 12
Abstract
This paper describes an experimental study on the seismic performance of concentrically braced steel frames made with cold-formed rectangular tubular bracing members. A total of 24 quasistatic cyclic tests were performed on full size X bracing and single diagonal bracing systems. Two loading sequences were considered: a symmetrical stepwise increasing deformation sequence and a displacement history obtained from nonlinear dynamic analyses of typical braced steel frames. All specimens buckled out-of the plane of the frame and the tests were interrupted when fracture of the braces occurred in the region of highest curvature. For X bracing, the results clearly show that the effective length of the braces can be used to determine their compression strength and to characterize their hysteretic response, including energy dissipation capability. Simplified models are proposed to predict the out-of-plane deformation of the braces as a function of the ductility level. These models are then used to develop an empirical expression to assess the inelastic deformation capacity before fracture of bracing members made of rectangular hollow sections.
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References
American Institute of Steel Construction (AISC). (1997). Seismic provisions for structural steel buildings, Chicago.
American Institute of Steel Construction (AISC). (1999). Load and resistance factor design specification for structural steel buildings, Chicago.
Applied Technology Council (ATC). (1992). “Guidelines for cyclic seismic testing of components of steel structures.” ATC-24, Redwood City, Calif.
Archambault, M.-H., Tremblay, R., and Filiatrault, A. (1995). “Étude du comportement séismique des contreventements ductiles en X avec profilés tubulaires en acier.” Rep. No. EPM/GCS-1995-09, École Polytechnique, Montreal (in French).
Bertero, V. V., Uang, C.-M., Llopiz, C. R., and Igarashi, K.(1989). “Earthquake simulator testing of concentric braced dual system.” J. Struct. Eng., 115(8), 1877–1894.
Canadian Standard Association (CSA). (1994). “Limit states design of steel structures.” CAN/CSA-S16.1-94, Rexdale, Ont., Canada.
El-Tayem, A. A., and Goel, S. C (1985). “Cyclic behavior of angle X-bracing with welded connections.” Research Rep. No. UMCE 85-4, Univ. of Michigan, Ann Arbor, Mich.
El-Tayem, A. A., and Goel, S. C.(1986). “Effective length factor for the design of X-bracing systems.” AISC Eng. J., 24(1), 41–45.
Foutch, D. A., Goel, S. C., and Roeder, C. W.(1987). “Seismic testing of full-scale steel building—Part I.” J. Struct. Eng., 113(11), 2111–2129.
Fukuta, T., Nishiyama, I., Yamanouchi, H., and Kato, B.(1989). “Seismic performance of steel frames with inverted V braces.” J. Struct. Eng., 115(8), 2016–2028.
Gugerli, H. (1982). “Inelastic cyclic behavior of steel bracing members.” PhD thesis, Univ. of Michigan, Ann Arbor, Mich.
Hassan, O. F., and Goel, S. C. (1991). “Modeling of bracing members and seismic behavior of concentrically braced steel structures.” Research Rep. No. UMCE 91-1, Univ. of Michigan, Ann Arbor, Mich.
International Conference on Building Officials (ICBO). (1997). Uniform building code, Whittier, Calif.
Jain, A. K., Goel, S. C., and Hanson, R. D.(1978). “Inelastic response of restrained steel tubes.” J. Struct. Div. ASCE, 104(6), 897–910.
Jain, A. K., Goel, S. C., and Hanson, R. D.(1980). “Hysteretic cycles of axially loaded steel members.” J. Struct. Div. ASCE, 106(8), 1777–1795.
Kahn, L. F., and Hanson, R. D.(1976). “Inelastic cycles of axially loadedsteel members.” J. Struct. Div. ASCE, 102(5), 947–959.
Lee, S., and Goel, S. C. (1987). “Seismic behavior of hollow and concrete-filled square tubular bracing members.” Research Rep. No. UMCE 87-11, Univ. of Michigan, Ann Arbor, Mich.
Liu, Z. (1987). “Investigation of concrete-filled steel tubes under cyclic bending and buckling.” PhD thesis, Univ. of Michigan, Ann Arbor, Mich.
Nakashima, M., and Wakabayashi, M. (1992). “Analysis and design of steel braces and braced frames in building structures.” Stability and ductility of steel structures under cyclic loading, Y. Fukumoto and G. C. Lee, eds., CRC Press, Boca Raton, Fla., 309–321.
Nordenson, G. J. P. (1984). “Notes on the seismic design of steel concentrically braced frames.” Proc., 8th World Conf. on Earthquake Engineering, San Francisco, 395–402.
Picard, A., and Beaulieu, D.(1989a). “Theoretical study of the buckling strength of compression members connected to coplanar tension members.” Can. J. Civ. Eng., 16(3), 239–248.
Picard, A., and Beaulieu, D.(1989b). “Experimental study of the buckling strength of compression members connected to coplanar tension members.” Can. J. Civ. Eng., 16(3), 249–257.
Pons, H. F. (1997). “Dynamic behavior of tubular bracing members with single plate concentric connections.” Master’s thesis, Univ. of Toronto, Toronto.
Popov, E. P., and Black, R. G.(1981). “Steel struts under severe cyclic loadings.” J. Struct. Eng., 107(9), 1857–1881.
Prathuansit, D., Goel, S. C., and Hanson, R. D.(1978). “Axial hyteresis behavior with end restraints.” J. Struct. Div. ASCE 104, 883–895.
Sabelli, R., and Hohbach, D.(1999). “Design of Cross-Braced Frames for Predictable Buckling Behavior.” J. Struct. Eng., 125(2), 163–168.
Shaback, J. B. (2001). “Behaviour of square HSS braces with end connections under reversed cyclic axial loading.” Master’s thesis, Univ. of Calgary, Calgary, Alta., Canada.
Stoman, S. H.(1989). “Effective Length Spectra for Cross Bracings,” J. Struct. Eng., 115(12), 3112–3122.
Structural Stability Research Council (SSRC). (1998). Guide to stability design criteria for metal structures, 5th Ed., T. V. Galambos, ed., Wiley, New York.
Tang, X., and Goel, S. C. (1987). “Seismic analysis and design considerations of braced steel structures.” Research Rep. No. UMCE 87-4, Univ. of Michigan, Ann Arbor, Mich.
Tang, X., and Goel, S. C.(1989). “Brace fractures and analysis of phase I structure.” J. Struct. Eng., 115(8), 1960–1976.
Tremblay, R.(2002). “Inelastic seismic response of steel bracing members.” J. Constr. Steel Res., 58, 665–701.
Tremblay, R., Bruneau, M., Nakashima, M., Prion, H. G. L., Filiatrault, A., and DeVall, R.(1996). “Seismic design of steel buildings: Lessons from the 1995 Hyogoken-Nanbu earthquake.” Can. J. Civ. Eng., 23, 727–756.
Tremblay, R., Timler, P., Bruneau, M., and Filiatrault, A.(1995). “Performance of steel structures during the January 17, 1994 Northridge earthquake.” Can. J. Civ. Eng., 22, 338–360.
Uang, C.-M., and Fan, C.-C. (2000). “Cyclic instability of steel moment connections with reduced beam sections.” Proc., 3rd Int. STESSA Conf., Montréal, 747–753.
Wakabayashi, M., Matsui, C., Minami, K., and Mitani, I.(1974). “Inelastic behavior of full-scale steel frames with and without bracings.” Bull. Disaster Prevention Research Institute, Kyoto Univ., 24(216), 1–23.
Wakabayashi, M., Nakamura, T., and Yoshida, N.(1977). “Experimental studies on the elastic–plastic behavior of braced frames under repeated horizontal loading.” Bull. Disaster Prevention Research Institute, Kyoto Univ., 27(251), 121–154.
Walpole, W. R. (1996). “Behaviour of cold-formed steel RHS members under cyclic loading.” Research Rep. No. 96-4, Univ. of Canterbury, Christchurch, New Zealand.
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Information
Published In
Journal of Structural Engineering
Volume 129 • Issue 12 • December 2003
Pages: 1626 - 1636
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jan 24, 2002
Accepted: Oct 21, 2002
Published online: Nov 14, 2003
Published in print: Dec 2003
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