Optimization of steel truss configuration for structure efficiency: A Review

Abstract

We has reviewed the different-different papers like A New Method for Optimal Truss Topology Design and A Sequential Parametric Convex Approximation Method with Applications to Non-convex Truss Topology Design Problems. In Paper “A Sequential Parametric Convex Approximation Method with Applications to Nonconvex Truss Topology Design Problems” they have analyzed at the starting point the weight was 3000 (equally distributed between 25 bars). It was reduced after 200 iterations (CPU: 6 minutes) to 1010.9. From there, no significant progress in the objective value was observed and the algorithm was stopped. The stopping rule (2.3) based on the Karush–Kuhn– Tucker (KKT) conditions was valid with " = 10-4. In paper “A New Method for Optimal Truss Topology Design” they have analyzed Small variations in the cross-sectional areas of the bars in the optimal topology and even the addition or deletion of thin bars have very little influence on the stiffness of the truss, as measured by compliance. Also, multiple solutions seem to exist, especially in cases with possible symmetry