Finite Element evaluation of demountable connectors for steel concrete composite floors

The construction industry generates a substantial share of global solid waste, driven by conventional building practices that hinder material recovery and reuse. While concrete remains the dominant construction material and concrete–steel composite members serve as essential load‐bearing elements, limited efforts have been made to enhance the reusability and demountability of such components. Advancing design‐for‐disassembly is therefore critical to align structural engineering with principles of sustainability and circular construction. This study investigates the potential of three types of demountable connectors as alternatives to conventional studs. Unlike traditional connectors, the proposed solutions are intended to offer enhanced demountability and reusability, enabling structural components to be disassembled without damage and reused in future applications. Numerical models were developed to examine the structural behaviour of floor‐to‐beam connectors. Based on the promising agreement with expected performance, experimental studies are planned to further validate and assess their real‐world applicability. The findings of numerical simulations demonstrate the potential of innovative connectors to enhance demountability, reduce construction waste, and promote adaptable, reusable building systems.