Biaxial charts for rectangular reinforced columns in accordance with the Ethiopian building code standard EBCS-2:Part1

Abstract

The analysis of reinforced concrete sections are characterised by material non-linearity arising from the non-linear stress-strain relationships and the cracking of the cross-section. · As a result, the systematic production of biaxial design charts necessitates the application of numerical methods that are based on iterations. The design charts may be conveniently represented as My-M: diagrammes on planes of constant internal normal forces or as N-M diagrammes on planes of constant angles that relate the y- and z-components of the resultant moment M. The aim of this paper is to present an iterative procedure that has been   successfully used to produce biaxial charts of the first type. The design charts are produced for biaxially loaded rectangular columns in accordance with the Ethiopian Building Code Standard, EBCS-2: Part l [/].