Reducing Rebar Cutting Waste and Rebar Usage of Beams: A Two-Stage Optimization Algorithm

While various approaches have been developed to minimize rebar cutting waste, such as optimizing patterns and the lap splice position, reducing usage by minimizing number of splices remains uninvestigated. In response these issues, a two-stage optimization algorithm was that prioritizes use special-length achieve near-zero waste (N0RCW) less than 1%, while also overall usage. The first optimizes position for continuous considering rebar, which reduces required. It then integrates minimization combine additional rebar. applied beam structures in small-sized factory building project, it resulted notable reduction 29.624 tons equivalent 12.31% total purchased quantity. Greenhouse gas emissions were reduced 102.68 tons, associated costs decreased USD 30,256. A 0.93%, is near zero, achieved. These findings highlight significant potential proposed facilitating sustainable construction practices. applicable other reinforced concrete projects, where advantages will be amplified accordingly.