Multicriteria Optimization of Reinforced Concrete Floor Slabs

This paper focuses on the multicriteria software optimization of reinforced concrete floor slabs, especially in terms of environmental impacts and cost. The economic aspect is essential to ensure that the environmentally friendly design option is also cost effective. The durability of the structure is also considered as it significantly affects its overall environmental footprint. Increased durability reduces the frequency of repairs and extends the service life before demolition and reconstruction are required, thereby spreading the environmental impacts of the initial construction over a longer period. The software tool used for optimization was developed in previous work, and this paper extends its application to lightweight floor slabs and prestressed hollow core slabs. This extension aims to enhance the practical usability of the optimization algorithm. Lightweight floor slabs, particularly for large spans, can reduce both environmental burdens and construction cost. This paper describes the extension of an optimization algorithm to identify the most advantageous floor design in terms of environmental impact and cost. It also examines the benefits of floor slab lightweighting and provides general recommendations for optimizing reinforced concrete floor slabs.