Browse > Article
http://dx.doi.org/10.11112/jksmi.2016.20.1.072

Hysteresis Characteristics of Buckling Restrained Brace with Precast RC Restraining Elements  

Shin, Seung-Hoon (부산대학교 건축공학과)
Oh, Sang-Hoon (부산대학교 건축공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.20, no.1, 2016 , pp. 72-84 More about this Journal
Abstract
The conventional brace system is generally accepted as the lateral load resisting system for steel structures due to efficient story drift control and economic feasibility. But lateral stiffness of the structure decreases when buckling happens to the brace in compression, so that it results in unstable structure with unstable hysteresis behavior through strength deterioration. Buckling restrained brace(BRB) system, in which steel core is confined by mortar/concrete-filled tube, represents stable behavior in the post-yield range because the core's buckling is restrained. So, seismic performance of BRB is much better than that of conventional brace system in point of energy absorption capacity, and it is applied the most in high seismicity regions as damper element. BRBs with various shaped-sections have been developed across the globe, but the shapes experimented in Korea are now quite limited. In this study, we considered built-up type of restraining member made up of precast reinforcement concrete and the steel core. we experimented the BRB according to AISC(2005) and evaluated seismic performances and hysteresis characteristics.
Keywords
Buckling restrained brace; Buckling stability; Hysteresis behavior; Seismic performance; Unbonded brace;
Citations & Related Records
연도 인용수 순위
  • Reference
1 AISC (2005), Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL.
2 AISC/SEAOC (2001), Recommended Provisions for Buckling-Restrained Braced Frames.
3 Chen, C.C., and Lu, L.W. (1990), Development and experimental investigation of a ductile CBF system, Proc. 4th NCEE, Palm Springs, CA, 2, 575-584.
4 Chen, C.C. (2000), Seismic behavior and design of buckling inhibited braces and ductile CBF's, Structural Engineering, 15(1), 53-78.
5 Chen, C.C., Chen, S.Y., and Liaw, J.J. (2001a), Application of low yield strength steel on controlled plastification ductile concentrically braced frames, Canadian Journal of Civil Engineering, 28, 823-836.   DOI
6 Clark, P., Aiken, I., Kasai, K., Ko, E., and Kimura, I. (1999), Design procedures for buildings incorporating hysteretic damping devices, Proc. 69th Annual Convention of SEAOC, Sacramento, CA.
7 Hasegawa, H., Takeuchi, T., Nakata, Y., Iwata, M., Yamada, S., and Akiyama, H. (1999), Experimental study on dynamic behavior of unbonded braces, AIJ J. Technol. Des., 9, 103-106.
8 Iwata, M., Kato, T., and Wada, A. (2000), Buckling-restrained braces as hysteretic dampers, Proc. STESSA, Quebec, PQ, 33-38.
9 Lopez, W.A., Gwie, D.S., Saunders, M., and Lauck, T.W. (2002), Lessons learned from large-scale tests of unbonded braced frame subassemblage, Proc. 71st Annual Convention of SEAOC, Sacramento, CA, 171-183.
10 Sabelli, R., Mahin, S.A., and Chang, C. (2003), Seismic demands on steel braced-frame buildings with buckling-restrained braces, Engineering Structures, 25, 655-666.   DOI
11 Shin, S.H. and Oh, S.H. (2014), Suggestion of new shape for buckling-restrained brace(Development of new shape BRB), 2014 Spring Conference of Korea Institute for Structural Maintenance and Inspection, 18(1), 663-666
12 Tsai, K.C. and Lai, J.W. (2002), A study of buckling restrained seismic braced frame, Structural Engineering, 17(2), 3-32.
13 Tsai, K.C., Hwang, Y.C., Weng, C.S., Shirai, T., and Nakamura, H. (2002), Experimental tests of large scale buckling restrained braces and frames, Proceedings, Passive Control Symposium, December 2002, Tokyo Institute of Technology, Tokyo, Japan.
14 Watanabe, A., Hitomi, Y., Saeki, E., Wada, A., and Fujimoto, M. (1988), Properties of brace encased in buckling-restraining concrete and steel tube, Proc. 9th WCEE, Tokyo-Kyoto, Japan, 4, 719-724.