Design and Second-order Analysis of Trusses Composed of Angle Sections

Extensive work has been carried out on the advanced analysis of frames consisting of members of symmetrical cross-section, but trusses composed of angle sections were not investigated in detail by the advanced analysis. This paper describes the application of advanced analysis to structures composed of angle sections. The effects of load eccent-ricity and finite stiffness at connections are also allowed for. The difficulties of assuming an effective length factor and classification of connections for angle column design in the computer analysis are avoided. The method produces a consistent result with the column buckling curves in design codes and with the results by other researchers.