Barandillas de protección personal con solicitación dinámica

Abstract

Safety guardrails with dynamic loads, B and C types conforming EN 13374, are devices used as collective protection for people against height falls and for retaining materials. This system can include a safety net anchored to a support structure for its vertical use (U system, EN 1263). In this paper, fundamental aspects are analysed, as design, mechanical requirements and solution for the hard points that arise at supports of the system, able to seriously injure falling people. So, a ballast fall against this system has been studied, by modelling it with dynamic finite elements and analytical kinetic considerations, to obtain useful conclusions about geometry, cross section of the supports, maximum deflection and impact factor over the injured. It allows to suggest normative text improvements.