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Title: Seismic retrofitting of non-seismically designed RC beam-column joints using buckling-restrained haunches : design and analysis
Authors: Wang, B 
Zhu, S 
Xu, Y 
Jiang, H
Keywords: Buckling-Restrained Haunches
Energy Dissipation
Non-Seismically Designed RC Beam-Column Joint
Plastic Hinge Relocation
Seismic Retrofit
Issue Date: 2017
Publisher: Centre for Tourism Research & Development
Source: Journal of earthquake engineering, 2017, p. 1-21 How to cite?
Journal: Journal of earthquake engineering 
Abstract: Many existing reinforced concrete (RC) structures around the world have been designed to sustain gravity and wind loads only. Past earthquake reconnaissance showed that strong earthquakes can lead to substantial damage to non-seismically designed RC buildings, particularly to their beam-column joints. This paper presents a novel retrofit method using buckling-restrained haunches (BRHs) to improve the seismic performance of such joints. A numerical model for RC joints is introduced and validated. Subsequently, a new seismic retrofit strategy using BRHs is proposed, aimed at relocating plastic hinges and increasing energy dissipation. The results indicate the retrofit method can effectively meet the performance objectives.
ISSN: 1363-2469
DOI: 10.1080/13632469.2016.1277441
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