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Strengthening of moment-resisting frame using cable–cylinder bracing

Strengthening of moment-resisting frame using cable–cylinder bracing Cable–cylinder bracing (cable bracing system with central cylinder) is one of the modern bracing systems in which a pair of cables passes through a cylinder at their point of intersection. This research focuses on the seismic behaviour of moment-resisting frames which have been strengthened using cable–cylinder bracing. For this purpose, steel moment-resisting frames, with different numbers of storeys, were strengthened with two different types of cable bracing: cable cross-bracing and cable–cylinder bracing, and their seismic performances were compared. After performing verification, the original moment-resisting frames and those strengthened with cable–cylinder bracings and cable cross-bracings were subjected to the scaled records of six well-known earthquakes. The hysteresis, drift distribution and column axial force variation curves were plotted for the storeys at the height of the strengthened frames and compared to those of moment-resisting frames. Moreover, the energy dissipation values were also derived from the mentioned records. Based on the obtained results, the moment-resisting frames strengthened with cable–cylinder bracings performed much better compared to those strengthened by cable cross-bracing. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

Strengthening of moment-resisting frame using cable–cylinder bracing

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Publisher
SAGE
Copyright
© The Author(s) 2016
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1177/1369433216649382
Publisher site
See Article on Publisher Site

Abstract

Cable–cylinder bracing (cable bracing system with central cylinder) is one of the modern bracing systems in which a pair of cables passes through a cylinder at their point of intersection. This research focuses on the seismic behaviour of moment-resisting frames which have been strengthened using cable–cylinder bracing. For this purpose, steel moment-resisting frames, with different numbers of storeys, were strengthened with two different types of cable bracing: cable cross-bracing and cable–cylinder bracing, and their seismic performances were compared. After performing verification, the original moment-resisting frames and those strengthened with cable–cylinder bracings and cable cross-bracings were subjected to the scaled records of six well-known earthquakes. The hysteresis, drift distribution and column axial force variation curves were plotted for the storeys at the height of the strengthened frames and compared to those of moment-resisting frames. Moreover, the energy dissipation values were also derived from the mentioned records. Based on the obtained results, the moment-resisting frames strengthened with cable–cylinder bracings performed much better compared to those strengthened by cable cross-bracing.

Journal

Advances in Structural EngineeringSAGE

Published: Nov 1, 2016

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