Browse > Article
http://dx.doi.org/10.12652/Ksce.2013.33.3.875

Seismic Behavior and Performance Evaluation of Uckling-restrained Braced Frames (BRBFs) using Superelastic Shape Memory Alloy (SMA) Bracing Systems  

Hu, Jong Wan (Department of Civil and Environmental Engineering, University of Incheon)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.33, no.3, 2013 , pp. 875-888 More about this Journal
Abstract
The researches have recently progressed toward the use of the superelastic shape memory alloys (SMAs) to develop new smart control systems that reduce permanent deformation occurring due to severe earthquake events and that automatically recover original configuration. The superelastic SMA materials are unique metallic alloys that can return to undeformed shape without additional heat treatments only after the removal of applied loads. Once the superelastic SMA materials are thus installed at the place where large deformations are likely to intensively occur, the structural system can make the best use of recentering capabilities. Therefore, this study is intended to propose new buckling-restrained braced frames (BRBFs) with superelastic SMA bracing systems. In order to verify the performance of such bracing systems, 6-story braced frame buildings were designed in accordance with the current design specifications and then nonlinear dynamic analyses were performed at 2D frame model by using seismic hazard ground motions. Based on the analysis results, BRBFs with innovative SMA bracing systems are compared to those with conventional steel bracing systems in terms of peak and residual inter-story drifts. Finally, the analysis results show that new SMA bracing systems are very effective to reduce the residual inter-story drifts.
Keywords
Superelastic behavior; Shape memory alloys (SMAs); Buckling-restrained bracing; Moment frames; Residual inter-story drifts;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 American Institute of Steel Construction (AISC) (2001). Manual of steel construction: Load and Resistance Factor Design (LRFD), 3rd edition, Chicago (IL) USA.
2 American Society of Civil Engineers (ASCE) (2005). Minimum design loads for buildings and other structures, ASCE/SEI No. 7-05, Reston VA USA.
3 Auricchio, F., Sacco, E. (1997). "A one-dimensional model for superelastic shape-memory alloys with different properties between martensite and austenite." Int. J. Non-Linear Mech., Vol. 32, No. 6, pp. 1101-1114.   DOI   ScienceOn
4 Black. C., Makris. N., Aiken. I. (2002). Component testing, stability analysis and characterization of buckling-restrained braces, Report No. PEER-2002/08, Pacific Earthquake Engineering Research Center University of California Berkeley CA USA.
5 DesRoches. R., Delemont. M. (2002). "Seismic retrofit of simply supported bridges using shape memory alloys." Eng. Struct., Vol. 24, No. 3, pp. 325-332.   DOI   ScienceOn
6 DesRoches. R., Delemont. M. (2002). "Seismic retrofit of simply supported bridges using shape memory alloys." Eng. Struct., Vol. 24, No. 3, pp. 325-332.   DOI   ScienceOn
7 Dolce. M., Cardone. D. (2001). "Mechanical behaviour of shape memory alloys for seismic applications: 1. Martensite and austenite NiTi bars subjected to torsion." Int. J. Mech. Sci., Vol. 43, No. 11, pp. 2631-2656.   DOI   ScienceOn
8 Hu, J. W. (2008). Seismic performance evaluations and analyses for composite moment frames with smart SMA PR-CFT connections, Ph.D. Dissertation, Georgia Institute of Technology, Atlanta, GA, USA.
9 Hu, J. W., Choi, E., Leon, R. T. (2011). "Design, analysis, and application of innovative composite PR connections between steel beams and CFT columns Smart Mater." Struct., Vol. 20, No. 2, DOI 10.1088/0964-1726/20/2/025019.   DOI   ScienceOn
10 Hu, J. W., Kang, Y. S., Choi, D. H., Park, T. (2010). "Seismic design, performance, and behavior of composite-moment frames with steel beam-to-concrete filled tube column connections." KSSC Int. J. Steel Struct., Vol. 10, No. 2, pp. 177-91.   DOI   ScienceOn
11 Hu, J. W., Leon, R. T. (2011). "Analyses and evaluations for composite-moment frames with SMA PR-CFT connections." Nonlin. Dyna., Vol. 65, No. 4, DOI 10.1007/s11071-010-9903-3.   DOI
12 Park, T., Hwang, W. S., Leon, R. T., Hu, J. W. (2011). "Damage evaluation of composite-special moment frames with concretefilled tube columns under strong seismic loads." Journal of the Korean Society of Civil Engineers, KSCE (DOI 10.1007/s12205-011-1225-6).   DOI   ScienceOn
13 Inoue, K., Sawaisumi, S., Higashibata, Y. (2001). "Stiffening requirements for unbonded braces encased in concrete panels." ASCE J. Struct. Eng., Vol. 127, No. 6, pp. 712-719.   DOI   ScienceOn
14 Kim, J., Park, J., Kim, S. (2009). "Seismic behavior factors of buckling-restrained braced frames." Struct. Eng. Mech., Vol. 33, No. 3, pp. 261-284.   DOI   ScienceOn
15 Mazzoni, S., Mckenna, F., Fenves, G. L. (2006). OpenSEES command language manual v. 1.7.3. Department of Civil Environmental Engineering University of California, Berkeley, CA, USA.
16 Sabelli, R. (2004). "Recommended provisions for buckling- restrained braced frames." AISC Eng. J., Vol. 41, No. 4, pp. 155-175.
17 Sabelli, R., Mahin, S. A., Chang, C. (2003). "Seismic demands on steel braced-frame buildings with buckling-restrained braces." Eng. Struct., Vol. 25, No. 5, pp. 655-666.   DOI   ScienceOn
18 Somerville, P. G., Smith, N., Punyamurthula, S., Sun, J. (1997). Development of ground motion time histories for phase 2 of the FEMA/SAC steel project, SAC background document, No. SAC /BD 97/04.
19 Song, G., Ma, N., Li, H. (2006). "Applications of shape memory alloys in civil structures." Eng. Struct., Vol. 28, No. 9, pp. 1266-1274.   DOI   ScienceOn
20 Wada, A., Connor, J., Kawai, H., Iwata, M. Watanabe, A. (1992) "Damage tolerant structures." Proc.5th U.S. - Japan Workshop on the Improvement of Structural Design and Construction Practices Applied Technology Council. (ATC-15-4) 27-39, SanDiego, CA, USA.
21 Watanabe, A., Hitomi, Y., Yaeki, E., Wada, A., Fujimoto, M. (1988). "Properties of brace encased in buckling-restraining concrete and steel tube." Proc. 9th World Conference on Earthquake Engineering, Vol. 5, pp. 719-724, Tokyo-Kyoto, Japan.