- Volume 5 Issue 5
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Energy dissipation demand of compression members in concentrically braced frames
- Lee, Kangmin (Department of Architectural Engineering, Chungnam National University) ;
- Bruneau, Michel (Department of Civil, Structural, and Environmental Engineering, State University of New York at Buffalo)
- Received : 2003.12.25
- Accepted : 2005.04.13
- Published : 2005.10.25
The response of single story buildings and other case studies are investigated to observe trends in response and to develop a better understanding of the impact of some design parameters on the seismic response of CBF. While it is recognized that many parameters have an influence on the behavior of braced frames, the focus of this study is mostly on quantifying energy dissipation in compression and its effectiveness on seismic performance. Based on dynamic analyses of single story braced frame and case studies, it is found that a bracing member designed with bigger R and larger KL/r results in lower normalized cumulative energy, i.e., cumulative compressive energy normalized by the corresponding tensile energy (
seismic response;concentrically braced frames;non-linear dynamic analyses;energy dissipation;compression members;slenderness ratios;R factor
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