Fig. 1From: An Accurate Numerical Model Simulating Hysteretic Behavior of Reinforced Concrete Columns Irrespective of Types of Loading ProtocolsCyclic envelopes of three sets of identical RC specimens tested under various loading protocols: a Sezen and Moehle (2006), b Takemura and Kawashima (1997), c Nojavan et al. (2015), d Pujol et al. (2006).Back to article page