Browse > Article
http://dx.doi.org/10.5000/EESK.2014.18.3.133

Seismic Behavior of Reinforced Concrete Moment Frames Retrofitted by Toggle Bracing System with High Density Friction Damper  

Han, Sang Whan (Department of Architectural Engineering, Hanyang University)
Kim, Ji Yeong (Department of Architectural Engineering, Hanyang University)
Moon, Ki Hoon (Department of Architectural Engineering, Hanyang University)
Lee, Chang Seok (Department of Architectural Engineering, Hanyang University)
Kim, Hyung Joon (Department of Architectural Engineering, University of Seoul)
Lee, Kang Seok (Department of Architecture, Chonnam National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.18, no.3, 2014 , pp. 133-140 More about this Journal
Abstract
The friction damper can be used for improving the seismic resistance of existing buildings. The damper is often installed in bracing members. The energy dissipation capacity of the damping systems depends on the type of the structure, the configuration of the bracing members, and the property of dampers. In Korea, there are numerous low- to mid-rise reinforced concrete moment frames that were constructed considering only gravity loads. Those frames may be vulnerable for future earthquakes. To resolve the problem, this study developed a toggle bracing system with a high density friction damper. To investigate the improvement of reinforced concrete frames after retrofit using the developed damped system, experimental tests were conducted on frame specimens with and without the damped system. The results showed that the maximum strength, initial stiffness and energy dissipation capacity of the framed with the damped system were much larger than those of the frame without the damped system.
Keywords
Seismic Retrofit; Friction Damper; Toggle Brace; Energy Dissipation; Magnification Factor;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Pall AS, Marsh C. Response of friction damped braced frames. J. Struct. Div. ASCE. 1982 June;108(ST6):1313-1323.
2 Mualla IH, Belev B. Performance of steel frames with a new friction damper device under earthquake excitation. Engineering Structures. Elsevier. 2002 Mar;24(3):365-371.   DOI   ScienceOn
3 Wu B, Zhang J, Williams MS, Ou J. Hysteretic behavior of improved Pall-typed frictional dampers. Engineering Structures. Elsevier. 2005 Jul;27(8):1258-1267.   DOI
4 Monir HS, Zeynali KA. Modified friction damper for diagonal bracing of structures. Journal of Constructional Steel Research. Elsevier. 2013 Aug;87:17-30.   DOI
5 Roh JE, Lee SH. Performance tests of rotary friction damper for seismic retrofitting of building structures. Journal of Architectural Institute of Korea. 2011;27(12):11-20.   과학기술학회마을
6 Hwang JS, Huang YN, Hung YH. Analytical and experimental study of toggle-brace-damper systems. Journal of Structural Engineering. ASCE. 2005 July;131(7):1035-1043.   DOI
7 Park JY, Han SW, Moon KH, Lee KS, Kim HJ. Experimental study on hysteretic characteristics of rotational friction energy dissipative devices. EESK J. Earthquake Engineering. 2013 Sep; 17(5):227-235.   과학기술학회마을   DOI
8 Kim HJ, Christoloulos C, Tremblay R. Experimental characterization of boltstressed non asbestos organic(NAO) material-to-steel interfaces. Report, Dept. of Civil Engineering, Univ. of Toronto, Canada; c2004; p.6-30.
9 Jeon KJ. An improvement of priority-screening method for seismic capacity evaluation and safety of R/C school buildings in Korea. Master's thesis. Chonnam National University. c2011.
10 Moon KH, Jeon YR, Lee CS, Han SW. Evaluation of performance of Korean existing school buildings with masonry infilled walls against earthquakes. EESK J. Earthquake Engineering. 2012 Dec;16(6):37-46.   과학기술학회마을   DOI   ScienceOn
11 Ministry of Education. Standard design documents of school building(Announcement of Ministry of Construction No. 130). National Archives of Korea; c1980
12 Lee SH, Jeong TK. A proposal for the effective evaluation method of seismic capacity using RC school structures damaged by Kobe earthquake. Journal of Architectural Institute of Korea. 2006 Apr;22(4):83-93.   과학기술학회마을
13 ACI Committee 318. Building Code Requirements for Structural Concrete (ACI 318M-11) and Commentary: American Concrete Institute; c2011.
14 Constantinou MC, Tsopelas P, Hammel W, Sigaher AN. Toggle- Brace-Damper Seismic Energy Dissipation Systems. Journal of Structural Engineering. ASCE. 2001 Feb;127(2):105-112.   DOI   ScienceOn