@article {bnh-4692,
	title = {Seismic retrofit of exterior RC beam-column joint using diagonal haunch},
	journal = {Engineering Structures},
	volume = {174},
	year = {2018},
	month = {01/2018},
	abstract = {<p><span>Exterior beam-column joint is typically the weakest link in a limited-ductile RC frame structure. The use of diagonal haunch element has been considered as a desirable seismic retrofit option for reducing the seismic demand at the joint. Previous research globally has focused on implementing double haunches, whilst the performance of using single haunch element as a less-invasive and more architecturally favourable retrofit option has not been investigated. In this study, the feasibility of using a single haunch system for retrofitting RC exterior beam-column joint is explored. This paper presents the derivation of the key formulations for the implementation of a single diagonal haunch as well as the generalization of the formulations for all three systems: the non-retrofitted subassembly, the double haunch retrofitting system, and the single haunch retrofitting system. The formulations have then been validated by available experimental data for non-retrofitted subassembly and double haunch retrofitting system. Finally, the effectiveness of the single haunch retrofitting system is compared with that of the double haunch retrofitting system through a parametric study.</span></p>},
	keywords = {Exterior beam-column joint, limited-ductile, RC frame, Seismic retrofit, Single diagonal haunch.},
	doi = {10.1016},
	url = {https://www.sciencedirect.com/science/article/pii/S0141029617328857},
	author = {Zabihi, Alireza and Hing-Ho Tsang and Emad F Gad and John Wilson}
}
