A conceptual framework for integrated Designers Risk Assessments - a case study of an Insulated Concrete Formwork framed project

Designers' Risk Assessments (DRA)s are essential to the successful implementation of projects and contractor's work methods. The Construction Design and Management (CDM) Regulations 2015 in the UK demands that all parties who specify or recommend a component or elements on a building project are responsible for their designs and specifications. As more buildings are moving from traditional forms of construction to various forms of hybrid construction, designers contributing to the project will need to provide DRAs that are associated with their designs and specifications. Traditionally, the input of the architect, structural and services engineers would suffice for this process. However, as projects are incorporating more off-site production and on-site assembly, design responsibilities are getting more fragmented and designers will need to will need to propose risk assessments that manage the safe implementation of their designs at the points of production (off or on-site). Furthermore, Principal Designers who have the duty to coordinate all DRAs will need incorporate these into a wholistic document that will ensure that all risks (off site, in transit and on-site) are properly assessed for elimination, reduction, information and control at the final point of project implementation on site. An illustrative case study approach based on a project being delivered as a hybrid of insulated concrete formwork, beam and block suspended ground flooring, precast concrete first and second floors/ staircases and timber truss roofing was used to study and propose a conceptual framework that seeks to inform research/practice and engender wider debate relevant to integrated DRA formulation.