Seismic Performance of Buckling-Restrained Braced Frames with Eccentric Configurations
Publication: Journal of Structural Engineering
Volume 138, Issue 3
Abstract
Braced frames are often used to resist lateral earthquake loads in steel buildings, but braces can interfere with architectural features. Eccentrically braced frames (EBFs) will accommodate windows, doors, and halls, but have performance limitations when link-to-column connections are required. An alternative to EBFs may be buckling-restrained braced frames with eccentric configurations (BRBF-Es). This paper introduces the concept of BRBF-Es and highlights design considerations. An analytical study was conducted that compares the performance and economy of BRBF-Es with EBFs. Results from non-linear time history analyses indicate that BRBF-Es will have greater residual drifts than comparable EBFs, but are less susceptible to failures at link-to-column connections. BRBF-Es require more steel than EBFs, but savings in design, fabrication, and erection may offset higher material costs.
Get full access to this article
View all available purchase options and get full access to this article.
References
American Institute of Steel Construction (AISC). (2005). Seismic provisions for structural steel buildings, Chicago.
ASCE. (2005). Minimum design loads for buildings and other structures, ASCE 7-05/ANSI A58, Reston, VA.
Carter, C. J., and Schlafly, T. J. (2008). “Save more money.” Mod. Steel Constr., 48(3), 55–59.
Chi, W.-M., El-Tawil, S., and Deierlein, G. G. (1998). “Inelastic analysis of a 17-story steel framed building damaged during Northridge.” Eng. Struct., 20(4–6), 481–495.
Coy, B. B. (2007). “Buckling-restrained brace connection design and testing.” M.S. thesis, Brigham Young Univ., Provo, UT.
Engelhardt, M. D., and Popov, E. P. (1992). “Experimental performance of long links in eccentrically braced frames.” J. Struct. Eng., 118(11), 3067–3088.
Fahnestock, L. A., Ricles, J. M., and Sause, R. (2007). “Experimental evaluation of a large-scale buckling-restrained braced frame.” J. Struct. Eng., 133(9), 1205–1214.
Foutch, D. A., and Yun, S.-Y. (2002). “Modeling of steel moment frames for seismic loads.” J. Constr. Steel Res., 58(5–8), 529–564.
Hjelmstad, K. D., and Popov, E. P. (1983). “Cyclic behavior and design of link beams.” J. Struct. Eng., 109(10), 2387–2403.
Hjelmstad, K. D., and Popov, E. P. (1984). “Characteristics of eccentrically braced frames.” J. Struct. Eng., 110(2), 340–353.
Malley, J. O., and Popov, E. P. (1984). “Shear links in eccentrically braced frames.” J. Struct. Eng., 110(9), 2275–2295.
Mazzoni, S., McKenna, F., Scott, M. H., and Fenves, G. L. (2006). The Open System for Earthquake Engineering Simulation (OpenSEES) User Command-Language Manual, PEER, Univ. Calif., Berkeley, CA, 〈http://opensees.berkeley.edu〉.
Menegotto, M., and Pinto, P. E. (1973). “Method of analysis of cyclically loaded RC plane frames including changes in geometry and non-elastic behavior of elements under normal force and bending.” Proc.,Symp. on the Resistance and ultimate Deformability of Structures Acted On by Well-Defined Repeated Loads, IABSE, IABSE, Lisbon, 15–22.
Okazaki, T., Engelhardt, M. D., Nakashima, M., and Suita, K. (2006). “Experimental performance of link-to-column connections in eccentrically braced frames.” J. Struct. Eng., 132(8), 1201–1211.
Popov, E. P., Ricles, J. M., and Kasai, K. (1992). “Methodology for optimum EBF link design.” Proc., 10th World Conf. on Earthquake Engineering, Vol. 7, ASCE, Reston, VA, 3983–3988.
Prinz, G. S. (2010). “Using buckling-restrained braces in eccentric configurations.” Ph.D. dissertation, Brigham Young Univ., Provo UT.
Prinz, G. S., and Richards, P. W. (2008). “Seismic response of buckling-restrained braced frames with beam splices.” Proc., 14th World Conf. on Earthquake Engineering, ASCE, Reston, VA.
Ramadan, T., and Ghobarah, A. (1995). “Analytical model for shear-link behavior.” J. Struct. Eng., 121(11), 1574–1580.
Richards, P. W. (2006). “Testing protocol for short links in eccentrically braced frames.” J. Struct. Eng., 132(8), 1183–1191.
Richards, P. W. (2009). “Seismic column demands in ductile braced frames.” J. Struct. Eng., 135(1), 33–41.
Roeder, C. W., and Popov, E. P. (1978). “Eccentrically braced steel frames for earthquakes.” J. Struct. Div., 104(3), 391–412.
Tremblay, R., and Robert, N. (2001). “Seismic performance of low-and medium-rise chevron braced steel frames.” Can. J. Civ. Eng., 28(4), 699–714.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 3 • March 2012
Pages: 345 - 353
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Sep 17, 2010
Accepted: Aug 2, 2011
Published online: Aug 5, 2011
Published in print: Mar 1, 2012
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.