A configuration of seismic energy dissipation system for stiff structures
Abstract
The aim of the paper is to assess the efficiency of viscous fluid dampers with toggle bracing mechanism in reducing the seismic response of rigid steel frame structures.
A five story, three bay rigid steel frame was chosen for this study as a reference frame. The structure was then equipped with linear fluid viscous dampers, installed with the toggle brace configuration in the central bay of the building.
The dampers were sized to provide 15%, 25% and 35% of critical damping in the fundamental mode.
The numerical results (peak story shear, peak interstory drift and peak lateral floor acceleration) show that the proposed device is usefulness in enhancing the seismic response of stiff structure.
Full Text:
PDFReferences
Soong, T. T., Spencer J.R., Supplemental energy dissipation: state – of - the - art and state – of - the - practice, Engineering Structures, vol. 24, 2002.
Christopoulos, C., Filiatrault, A., Principles of Passive Supplemental Damping and Seismic Isolation, IUSS Press, Pavia, 2006.
Hwang, J. S., Huang Y. N, Huang Y. H., Analytical and experimental study of toggle – brace – damper systems, Journal of Structural Engineering, vol. 131, issue 7, 2005.
Sundiata M., Parametric study on the effectiveness of the toggle brace damper, http://mase.wustl.edu/wusceel/reujat/2002/marcelin.pdf
Ribakov, Y., Reinhorn A. M., Design of amplified structural damping using optimal consideration, Journal of Structural Engineering, vol. 131, issue 10, 2003.
Constantinou, M.C., et al., Toggle brace damper seismic energy dissipation system, Journal of Structural Engineering, vol. 127, issue 2, 2001.
Mociran, H. A., Stan A. D., The influence of damping ratios on eathquake response of steel frame structures, Computational Civil Engineering, IaÅŸi, 2008.
Refbacks
- There are currently no refbacks.
Copyright (c) 2016 INTERSECTII / INTERSECTIONS
Indexed
