Elastic-plastic analysis of R/C coupled shear walls: Theequivalent stiffness ratio of the tie elements

Abstract

Bar frame modelling is a popular method in coupled shear wall systems in structural design. In this process, determining the stiffness of the tie beams is important. In this study, results obtained by finite-element analysis of R/C coupled shear wall systems having several geometries in elastic-plastic space are considered. Using SPSS (Ver.5.0) statistical package program, an equivalent tie beam stiffness modification parameter is provided. The formula which defines the ratio between the plastic and elastic equivalent stiffness modification parameters is also given.