Safety is one of the most important topics in construction industry. This paper describes ongoing research and proposes a framework to model safety-related standards to support automated reasoning for safety improvement and construction site hazards prevention. The proposed system architecture integrates a construction methods model and an integrated project model to achieve automated identification of safety requirements imposed by standards. The authors expect that the envisioned system will facilitate site safety improvement and management in an automated manner by supporting identification of safety requirements during the design and the construction phase. This would allow taking these requirements into account early in a project life cycle, possibly affecting the design and schedule of a project, and supporting better guidance for field engineers and inspectors during safety planning and construction safety inspection.