Soft retention in height fall safety devices

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/74306
Información del item - Informació de l'item - Item information
Title: Soft retention in height fall safety devices
Authors: Irles Más, Ramón | Pomares Torres, Juan Carlos | Segovia-Eulogio, Enrique-Gonzalo | Ferrer, Belén | Carrión Jackson, Elena
Research Group/s: Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) | Acústica Aplicada
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Height fall | Safety device | Impact | Energy absorption | Deflection
Knowledge Area: Mecánica de Medios Continuos y Teoría de Estructuras
Issue Date: 2014
Publisher: WIT Press
Citation: WIT Transactions on The Built Environment. 2014, 141: 405-416. doi:10.2495/SUSI140351
Abstract: Height falls in construction work cause fatal or serious accidents every year. Safety devices used to avoid this are supposed to stop the falling worker by developing forces that are low enough to prevent serious injury being caused during the retention process. In this paper three safety systems are analysed: collective protection such as safety nets (V-type) or provisory edge protection (C-class guardrails) and personal fall arrest systems (with a harness). There are many biological and mechanical variables involved in the retention process. Maximum or minimum values are needed for kinetic energy to be absorbed; the forces against a retained worker or system deflection, respectively, are required by certain codes governing the safety systems. Other codes only establish limits for some of these variables. Code criteria about cited requirements are not homogeneous and sometimes they are even inadequate due to a lack of knowledge about the relationships and implications concerning the mechanical variables. The corresponding interaction is difficult to evaluate and requires expensive experimental studies to be carried out on instrumented real size samples. Nevertheless, in the last decade, research on safety systems has been done on refined finite element models that can perform dynamic simulations of the impact. This paper contains important conclusions drawn from the original contributions of authors that suggest making relevant improvements to some of the corresponding codes. Comparisons of cheaper numerical predictions and real size experiments have proved that finite element models can be reliably used to analyse and design these safety devices.
URI: http://hdl.handle.net/10045/74306
ISSN: 1746-4498 (Print) | 1743-3509 (Online)
DOI: 10.2495/SUSI140351
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014 WIT Press
Peer Review: si
Publisher version: https://doi.org/10.2495/SUSI140351
Appears in Collections:INV - GRESMES - Artículos de Revistas
INV - Acústica Aplicada - Artículos de Revistas

Files in This Item:
Files in This Item:
File Description SizeFormat 
Thumbnail2014_Irles_etal_WIT-TBE.pdf788,1 kBAdobe PDFOpen Preview


Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.