An analytical model for reinforced concrete beams with bolted side plates accounting for longitudinal and transverse partial interaction

The behaviour of bolted side-plated reinforced concrete (RC) beams is investigated in terms of the new concepts of the degrees of longitudinal and transverse of partial interaction. Composite bolted side-plated RC beams are unusual in that they exhibit not only longitudinal partial interaction, that is longitudinal slip at the steel/concrete interface, but that they also exhibit vertical or transverse partial interaction, which is slip transverse to the length of the beam. This paper derives mathematical models for the investigation of transverse partial interaction and its interaction with longitudinal partial interaction, and which are further developed to determine the distribution of slip strain, slip and the neutral axis separation of the steel and concrete components in terms of the degrees of transverse and longitudinal interaction. (C) 2001 Elsevier Science Ltd. All rights reserved.