Cost optimization of a composite floor system using ant colony system




Abstract– This paper presents an ant colony system model for cost optimization of a composite floor system based on the load and resistance factor design (LRFD) specification of the AISC. The model formulation includes the cost of concrete, steel beam, and shear studs. The objective function is considered as the cost of the structure, which is minimized subjected to serviceability and strength requirements. Examples of composite floor systems are presented to illustrate the performance of the present algorithm. A parametric study is also included to investigate the effects of beam spans and loadings on the cost optimization of composite beams