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http://dx.doi.org/10.5000/EESK.2012.16.6.001

Seismic Behavior and Recentering Capability Evaluation of Concentrically Braced Frame Structures using Superelastic Shape Alloy Active Control Bracing System  

Hu, Jong Wan (Dept. of Civil and Environmental Engineering, University of Incheon)
Rhee, Doo Jae (Daelim Industrial Co. Ltd.)
Joe, Yang Hee (Dept. of Civil and Environmental Engineering, University of Incheon)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.16, no.6, 2012 , pp. 1-12 More about this Journal
Abstract
The researches related to active control systems utilizing superelastic shape memory alloys (SMA) have been recently conducted to reduce critical damage due to lateral deformation after severe earthquakes. Although Superelastic SMAs undergo considerable inelastic deformation, they can return to original conditions without heat treatment only after stress removal. We can expect the mitigation of residual deformation owing to inherent recentering characteristics when these smart materials are installed at the part where large deformation is likely to occur. Therefore, the primary purpose of this research is to develop concentrically braced frames (CBFs) with superelastic SMA bracing systems and to evaluate the seismic performance of such frame structures. In order to investigate the inter-story drift response of CBF structures, 3- and 6-story buildings were design according to current design specifications, and then nonlinear time-history analyses were performed on numerical 2D frame models. Based on the numerical analysis results, it can be comparatively verified that the CBFs with superelastic SMA bracing systems have more structural advantages in terms of energy dissipation and recentering behavior than those with conventional steel bracing systems.
Keywords
Superelastic behavior; Shape memory alloys (SMAs); Active control; Recentering capability; Brace frame structures;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 American Institute of Steel Construction (AISC). Manual of steel construction. Load and Resistance Factor Design (LRFD). 3rd edn. Chicago, IL, USA. 2001.
2 International Code Council (ICC). International building code 2006 (IBC2006). Falls Church, VA, USA. 2006.
3 Sabelli R. Recommended provisions for buckling-restrained braced frames. Engineering Journal. AISC. 2004;41(4):155-175.
4 Mazzoni S, Mckenna F, Fenves GL. OpenSEES command language manual v. 1.7.3. Department of Civil Environmental Engineering. University of California, Berkeley, CA, USA. 2006.
5 Hu JW, Kang YS, Choi DH, Park T. Seismic design, performance, and behavior of composite-moment frames with steel beam-toconcrete filled tube column connections. International Journal of Steel Structures. KSSC, 2010;10(2):177-91.   DOI
6 Fugazza D. Shape alloy devices in earthquake engineering: mechanical properties, constitutive modeling and numerical simulations. Master's thesis Rose School, Italy. 2003.
7 Auricchio F, Sacco E. A one-dimensional model for superelastic shape-memory alloys with different properties between martensite and austenite. International Journal of Nonlinear Mechanics. 1997; 32(6):1101-1114.   DOI   ScienceOn
8 Somerville PG, Smith N, Punyamurthula S, Sun J. Development of ground motion time histories for phase 2 of the FEMA/SAC steel project. SAC background document. Report No. SAC/BD 97/04. 1997.
9 McCormick J, Aburano H, Ikenaga M, Nakashima M. Permissible residual deformation levels for building structures considering both safety and human elements. Proc. 14 World Conference Earthquake Engineering Paper, Beijing, China. 2008;No. 05-06-0071.
10 Rassati GA, Leon RT, Noe S. Component modeling of partially restrained composite joints under cyclic and dynamic loading. Journal of Structural Engineering. ASCE. 2004;130(2):343-51.   DOI   ScienceOn
11 Park T, Hwang WS, Leon RT, Hu JW. Damage evaluation of composite-special moment frames with concrete-filled tube columns under strong seismic loads. Journal of Civil Engineering, KSCE, 2011;15(8):1381-1394.
12 Ocel JM, DesRoches R, Leon RT, Hess WG, Krumme R, Hayes JR, Sweeney S. Steel beam-column connections using shape memory alloys. Journal of Structural Engineering. ASCE. 2004;130(5):732-740.   DOI   ScienceOn
13 Hu JW. 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. 2008.
14 Hu JW, Leon RT. Analyses and evaluations for composite-moment frames with SMA PR-CFT connections. Nonlinear Dynamics, 2011;65(4).
15 Hu JW, Choi E, Leon RT. Design, analysis, and application of innovative composite PR connections between steel beams and CFT columns. Smart Materials and Structures. 2011;20(2).
16 Sabol TA. An assessment of seismic design practice of steel structures in the United State since the Northridge Earthquake. Structure Design and Tall Buildings. 2004;13(5):409-423.   DOI   ScienceOn
17 Sabelli R. Research on improving the design and analysis of earthquake-resistant steel-braced frames. The 2000 NEHRP Professional Fellowship Report EERI. Oakland, CA, USA. 2001
18 Sabelli R, Mahin SA, Chang C. Seismic demands on steel braced-frame buildings with buckling-restrained braces. Engineering Structures. 2003;25(5):655-666.   DOI   ScienceOn
19 DesRoches R, McCormick J, Delemont M. Cyclic properties of superelastic shape memory alloy wires and bars. Journal of Structural Engineering. ASCE, 2004;130(1):38-46,   DOI   ScienceOn
20 Song G, Ma N, Li H. Applications of shape memory alloys in civil structures. Engineering Structures. 2006;28(9):1266-1274   DOI   ScienceOn
21 American Society of Civil Engineers (ASCE). Minimum Design Loads for Buildings and Other Structures (ASCE/SEI No. 7-05). Reston, VA, USA. 2005.