Controversial Issues in the Seismic Design of Connections in Reinforced Concrete Frames

Abstract

This paper discusses aspects of the design of connections in reinforced concrete frame structures which often get overlooked. Detailed analysis of beam-column joint regions using the modified compression field theory demonstrates behavioral features that have important design implications. The use of non-linear finite element modelling of joint regions to design efficient, yet practical, retrofit measures is discussed. An alternate form of construction using ductile steel link beams to connect reinforced concrete walls is presented. The important design features for the connection of these beams to the walls are highlighted.