Research Information System
ADVANCES IN CIVIL ENGINEERING, İstanbul, Turkey, 21 - 23 September 2016, vol.1, no.1, pp.1-8
As the buildings increase in height, their behavior becomes increasingly sensitive and efficiency of lateral dynamic loads increases in a manner. RC (reinforced concrete) shear core walls preferred to depend on height of them form lateral-load resisting system for modern and high-rise building construction. RC shear core walls are divided into smaller wall units and coupling beams formed between openings due to the architectural requirements such as door, window, stairway and elevation. Decrease in rigidity because of openings compensate with ductile short coupling beams. When the buildings are subjected to strong lateral loads, coupling beams act as fuses and exposed to inelastic rotation and deformation. Moreover, if units are properly detailed, behaviors of two independent shear wall piers will turn into a coupled system and their lateral stiffness will be greater than sum of individual wall piers and so the desired degree of coupling will be achieved. These groups of RC shear core walls are named RC coupled shear wall systems. Historically, the most of researches have focused on the coupling beam response depending on beam detailing, aspect ratio, material type, degree of coupling but the studies on the behavior of coupled RC coupled shear wall systems are not prevalent. In this study, the effects of different type coupling beams on the behavior of the RC coupled shear walls are numerically investigated according to local deformations at the beam-wall joints and the wall boundary detailing.