DISPOSABLE KNEE-BRACING TECHNIQUE IN STEEL FRAMES.

Abstract

The main objective of this paper is to investigate, using second-order elasto-plastic analyses, the effects of varying structural geometry, stiffness, size, plastic moment capacity and beam-to-column joint connections on the lateral response of steel frames equipped with Disposable Knee Bracing (DKB). Two test frames, were selected in this study. These frames have been investigated previously by the writer. The P-delta effects and the reduction in the plastic moment capacity of each member caused by the axial forces were taken into consideration. Based on the analytical results obtained, design recommendations are presented.