Reinforced concrete roof exterior wide and conventional beam–column joints under lateral load

Performance of beam–column joints at roof level is one of the areas needing research in ACI 352R‐02. Thus, behavior of roof exterior beam–column joints was evaluated by testing two half‐scale roof wide and conventional beam–column joints effectively confined on three vertical faces under lateral quasi‐static cyclic loading. Both of the specimens had conventional transverse beams. They were designed in accordance with ACI 318‐11 and ACI 352R‐02 provisions. It became clear by the tests that roof exterior wide beam–column joint was more ductile compared with roof exterior conventional beam–column joint. But there was not considerable difference between strength and energy dissipation capacity of the specimens. Moreover, joint shear strength was sufficient in wide beam–column joint. Therefore, joint shear requirements can be relaxed for roof exterior wide beam–column connection. Copyright © 2015 John Wiley & Sons, Ltd.