Optimum RC Member Design With Predetermined Discrete Sections

Abstract

This paper develops a simplified, yet effective, algorithm for optimum reinforced concrete (RC) member design. After construction of the data base of predetermined reinforced concrete sections that are arranged in the order of increasing resistant capacities, the relationship between the section identification numbers and the resistant capacities of sections is established by regression and used to obtain an initial solution (section) that satisfies the imposed design constraints. Assuming that there exists an optimum section near the initially selected one, a direct search is conducted to find the discrete optimum solution. The optimization of the entire structure is accomplished through the individual member optimization.