Abstract

Purpose: This study aims to identify engineering measures for securing the structural safety of temporary scaffolding and protective sheds installed during architectural heritage restoration projects. Unlike ordinary construction sites, heritage restoration sites are highly vulnerable to structural instability because conventional wall-tie installation is restricted to preserve the original fabric of historic structures. Research design, data and methodology: A hybrid approach combining structural analysis and case study investigation was adopted. Design wind pressure and limit-state load combinations acting on temporary structures were quantitatively evaluated based on Korean construction standards, and representative heritage restoration projects were analyzed to assess structural performance under wind loads. Results: The analysis revealed that localized strong winds can generate significant lateral forces on protective sheds and vertical safety nets, increasing the risk of scaffolding overturning. An independent self-supporting structural system separated from the heritage structure, combined with a non-destructive mechanical anchoring method using clamping devices, was found to provide effective lateral shear resistance while preventing physical damage to heritage components. In addition, widening the foundation through outriggers and strategically placing concrete counterweights significantly improved resistance against overturning moments. Conclusions: The findings indicate that conventional temporary structure design methods are insufficient for heritage restoration environments and that specialized design strategies are required to address preservation constraints and wind-induced structural risks. The proposed measures provide practical engineering solutions and may serve as foundational data for establishing heritage-specific temporary structure design guidelines.