Optimum Design of Statically Indeterminate Frames by Means of Non-Linear Programming

Abstract

This report presents a computer program and numerical examples concerning automated optimum design of statically indeterminate structures with specified comfigurations. The analysis of the "structure is formulated according to the displacement method. Cross_sectional shapes and sizes are selected as free variables. Weight or cost may be selected as object function. &&Computer times required to solve moderately complex problems may easily become excessive; hence, it is mandatory to seek methods to &a) improve the strategy of the search for the optimum &b) reduce the numerical computations required in each step during the search.&&Several avenues for further research on these questions are outlined.