A REVIEW ON EFFECT OF LATERAL TIES IN COLUMN UNDER SEISMIC LOADING

Most of studies on the seismic performance of shear-critical, reinforced concrete columns have only considered how they would react to lateral deformations applied parallel to one of the column faces. These columns’ effectiveness as measured by their cracking patterns, shear strengths, effective stiffnesses, deteriorating stiffnesses, and inelastic shear deformations was observed. Based on these experimental findings, a new model was created to predict the range of cyclic force-deformation response, which includes peak strength, loss of axial load carrying capacity, and shear force and associated shear deformation at shear cracking. In this model, the force at the start of critical shear cracking corresponds to the concrete’s contribution to shear strength for an intermediate short column. The diagonal fracture plane is assumed to be parallel to the neutral surface, and a spatial truss model with idealized longitudinal, transverse, and diagonal truss components is used to evaluate the transverse reinforcement contribution. The suggested model’s applicability for application in the seismic assessment and rehabilitation of existing structures was confirmed by test data from this study and a previous investigation.