Analytical study on seismic retrofitting of reinforced concrete buildings using steel braces with shear link

Durucan, Cengizhan
Dicleli, Murat
This paper is focused on a proposed seismic retrofitting system (PRS) configured to upgrade the performance of seismically vulnerable reinforced concrete (RC) buildings. The PRS is composed of a rectangular steel housing frame with chevron braces and a yielding shear link connected between the braces and the frame. The retrofitting system is installed within the bays of an RC building frame to enhance the stiffness, strength and ductility of the structure. The PRS and a conventional retrofitting system using squat infill shear panels (SISPs) are used in an existing school and an office building. Nonlinear time history analyses of the buildings in the original and retrofitted conditions are conducted for three different seismic performance levels (PLs) to assess the efficiency of the PRS. The analyses results revealed that the building retrofitted with the PRS has a more stable lateral force-deformation behavior with enhanced energy dissipation capability than that of the one retrofitted with SISPs. For immediate occupancy PL, the maximum inter-storey drift of the building retrofitted with the PRS is comparable to that of the one retrofitted with SISPs. But for life safety and collapse prevention PLs, the maximum inter-storey drift of the building retrofitted with the PRS is considerably smaller than that of the one retrofitted with SISPs. Furthermore, compared with the building retrofitted with SISPs, the building retrofitted with the PRS experiences significantly less damage due to the more ductile behavior of the system at the life safety and collapse prevention PLs.


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Günel, Ahmet Orhun; Burak Bakır, Burcu; Department of Civil Engineering (2013)
An analytical study is performed to evaluate the influence of shear wall area to floor area ratio on the behavior of existing mid-rise reinforced concrete buildings under earthquake loading. The seismic performance of five existing school buildings with shear wall ratios between 0.00% and 2.50% in both longitudinal and transverse directions and their strengthened counterparts are evaluated. Based on the structural properties of the existing buildings, additional buildings with varying shear wall ratios are ...
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Dicleli, Murat (2005-01-01)
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Citation Formats
C. Durucan and M. Dicleli, “Analytical study on seismic retrofitting of reinforced concrete buildings using steel braces with shear link,” ENGINEERING STRUCTURES, pp. 2995–3010, 2010, Accessed: 00, 2020. [Online]. Available: