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Résistance des garde-corps en bois fixés sur des structures neuves et comportement sous charges de garde-corps métalliques fixés sur des structures existantes
Malgré les réglementations nationales et internationales qui exigent de protéger les travailleurs exposés à un risque de chute, les chutes de hauteur restent l'une des principales causes de décès pour les travailleurs de la construction. Elles sont la deuxième cause d'accidents en ce qui a trait aux coûts (397 millions de dollars par an sur la période 2010-2012) et représentent 16,1 % des décès au travail en 2017. Les garde-corps temporaires sont un moyen efficace de protection contre les chutes de...
Regulated working at heights training works and needed: studies
Special Report Two recently released Ontario studies demonstrate why mandatory, standardized working at heights training is so critical to worker well-being. One study undertaken by the Institute for Work & Health (IWH) conducted an evaluation of the impact the province's working at heights training standard had on workers and their work sites. A second and earlier probe prepared by the Ministry of Labour (MOL) for the Chief Prevention Officer undertook root cause analysis of worker deaths from falls from heights. Significant results from WAH training standard The IWH evaluation consisted...
Preventing falls: Choosing compatible Fall Protection Supplementary Devices (FPSD) for bridge maintenance work using virtual prototyping
Apart from struck-by safety incidents, fall-related injuries are a major concern in bridge maintenance work. To protect against falls from bridge decks, maintenance workers largely rely on existing bridge guardrails. However, a large number of bridge guardrails do not comply with the regulatory height requirement of 42 ± 3 in. for sufficient fall protection – although appropriate for vehicular traffic. To address this fall protection issue, a few departments of transportation (DOTs) have adopted Fall Protection Supplementary Devices (FPSDs). These devices are temporarily installed...
A Pilot Study of Nanoparticle Levels and Field Evaluation of N95 Filtering Facepiece Respirators on Construction Sites
Little attention has been paid to the generated submicron ultrafine and nanoparticles and their exposure levels on construction jobsites. This information is needed because cytotoxicity of nanoparticles is well known now. In addition, the performance of particulate respirators generally used by construction workers has never been evaluated in field conditions against ultrafine and nano-sized particles. We hypothesized that workers on construction jobsites are exposed to high levels of nanoparticles and current NIOSH-recommended N95 respirators may not provide them adequate protection against aerosolized...
Scénarios d’accidents occasionnés par une perturbation du mouvement dans les secteurs de la construction et de la métallurgie
Pour une prévention locale et diversifiée La prévention des lésions consécutives à des heurts, des glissades, des coincements ou toute autre perturbation du mouvement au travail constitue un enjeu considérable. Cent quarante-trois récits d'accidents survenus dans les secteurs de la construction et de la métallurgie ont été analysés au moyen d'une approche probabiliste pour en extraire les scénarios récurrents. Ces récits ont été décrits par 30 facteurs génériques...
Évaluation d’un système de corde d’assurance horizontale, de connecteurs d’ancrage et de fermes contreventées comme structure d’accueil lors de la pose de toitures résidentielles
La pose de fermes de toit présente particulièrement des risques et des dangers de chute pour les travailleurs de la construction parce qu'elle se fait en hauteur et dans des conditions difficiles. Les travailleurs, en équilibre précaire sur la charpente, risquent de perdre l'équilibre et/ou de chuter lors de la pose des fermes. Pour protéger ses travailleurs contre les chutes de hauteur lors de la pose de fermes, de contreplaqués et de bardeaux, un entrepreneur de construction domiciliaire a récemment développé un système...
Falls from height in the construction industry
A critical review of the scientific literature Globally, falls from height (FFH) are a substantial public health jeopardy and are among the important leading causes of serious and fatal injuries for construction workers. A comprehensive understanding of the causal factors in FFH incidents is urgently required; however, the literature appears to lack a scientific review of FFH. In this study, 297 articles that contribute to the topic of fall incidents were reviewed. Seventy-five (75) articles met the criteria for relevance and were aggregated in a database to support a critical review. A synthesis...
Systèmes d'ancrage pour la protection contre les chutes
Ce guide se veut un outil d'information pour les employeurs de la construction qui auront à fabriquer, à installer ou à utiliser des systèmes d'ancrage pour la protection contre les chutes conformes à la nouvelle règlementation du Code de sécurité pour les travaux de construction (RLRQ, chap. S-2.1, r.4).? Source: http://www.cnesst.gouv.qc.ca/Publications/200/Pages/DC_200_1576.aspx
Fatal traumatic brain injuries in the construction industry, 2003-2010
Background: Research on fatal work-related traumatic brain injuries (TBIs) is limited. This study describes fatal TBIs in the US construction industry. Methods: Fatal TBIs were extracted from the Bureau of Labor Statistics Census of Fatal Occupational Injuries. Results: From 2003 to 2010, 2,210 fatal TBIs occurred in construction at a rate of 2.6 per 100,000 full-time equivalent (FTE) workers. Workers aged 65 years and older had the highest fatal TBI rates among all workers (7.9 per 100,000 FTE workers). Falls were the most frequent injury event (n = 1,269, 57%). Structural iron and...
Assessing barriers to the use of fall protection in small residential construction companies in New Jersey
Three focus groups were conducted with residential construction workers from local New Jersey labor organizations to characterize barriers to fall protection use among residential construction contractors who work for companies with fewer than ten employees. Thirty-six residential construction workers volunteered to participate, the average age was thirty-nine years, and twenty-four (67%) were of Hispanic origin. Twelve (33%) of the participants reported having fallen from greater than 6 ft at work and twenty (56%) of the participants had known someone who has fallen from greater than 6 ft...
Work safety climate, personal protection use, and injuries among Latino residential roofers
BACKGROUND: This analysis describes work safety climate, personal protective equipment (PPE) use, and injuries among Latino residential roofers, and examines the associations of work safety climate with PPE use and injuries. METHODS: Eighty-nine North Carolina residential roofers completed a baseline interview and daily logs about perceptions and use of PPE, occurrence of injuries in last 12 months, and work safety climate. RESULTS: The mean work safety climate score was 26.5 (SD = 5.6). In the baseline interview, participants reported that the majority of employers provided PPE and...
Systèmes d'ancrage pour la protection contre les chutes
Ce guide se veut un outil d'information pour les employeurs de la construction qui auront à fabriquer, à installer ou à utiliser des systèmes d'ancrage pour la protection contre les chutes conformes à la nouvelle règlementation du Code de sécurité pour les travaux de construction (RLRQ, chap. S-2.1, r.4). Source: http://www.csst.qc.ca/publications/200/Pages/DC_200_1576.aspx
Graphical fault tree analysis for fatal falls in the construction industry
The current study applied a fault tree analysis to represent the causal relationships among events and causes that contributed to fatal falls in the construction industry. Four hundred and eleven work-related fatalities in the Taiwanese construction industry were analyzed in terms of age, gender, experience, falling site, falling height, company size, and the causes for each fatality. Given that most fatal accidents involve multiple events, the current study coded up to a maximum of three causes for each fall fatality. After the Boolean algebra and minimal cut set analyses, accident causes associated...
Fatal events in residential roofing
Residential roofing is a high risk occupation, more than nine times as risky as the average occupation and more than three times as risky as the average construction trade. To better understand the factors involved in residential roofing fatalities, 112 case reports filed by Occupational Safety and Health investigators for the years 2005-2010 were examined. In almost all of the recorded cases there was no adherence to the then current safety standards. It was found that there was little or no appropriate use of fall protection practices or equipment and that employer planning and employee training...
Fatal falls in the U.S. residential construction industry
BACKGROUND: Falls from heights remain the most common cause of workplace fatalities among residential construction workers in the United States. METHODS: This paper examines patterns and trends of fall fatalities in U.S. residential construction between 2003 and 2010 by analyzing two large national datasets. RESULTS: Almost half of the fatalities in residential construction were from falls. In the residential roofing industry, 80% of fatalities were from falls. In addition, about one-third of fatal falls in residential construction were among self-employed workers. Workers who were older than 55...
Construction worker fatalities related to trusses
An analysis of the OSHA fatality and catastrophic incident database This study was conducted to gain a better understanding of the risks associated with truss installation in building projects. The Occupational Safety and Health Administration (OSHA) fatality and catastrophic incident database was analyzed for the years inclusive of 1990-2009. The database includes over 15,000 incidents, 211 of which pertain to trusses. The incidents were analyzed as to the number of fatalities per incident, the type of truss, the truss material, the activity taking place at the time of the accident, the release...
Preventing Falls through the Design of Roof Parapets
Workers are exposed to risks from falls during construction, operation, maintenance, and demolition of buildings. Parapets are the parts of the wall assembly that extend above the roof [Rajendran and Gambatese 2013] and can prevent falls from low-sloped (flat) roofs. Other design features that can prevent falls include using guardrail systems and permanent anchor points (for use with personal fall arrest systems and lifelines) [See NIOSH 2013 for more information]. Source : http://www.cdc.gov/niosh/docs/2014-108/
Prevention of falls to a lower level
Evaluation of an occupational health and safety intervention via subsidies for the replacement of scaffolding The objective of this study is to evaluate the impact of a subsidy policy for construction companies in Andalusia (Spain), which enables them to acquire new scaffolds. The rate of falls from scaffolds within the Andalusian construction sector in the period 2009-2011 was analysed. A randomised controlled trial was not possible as the subsidy was granted according to a public and competitive call. A quasi-experimental design based on an intervention group (subsidised companies) and a control...
Access equipment for construction work at height in residential properties - RR978
The construction sector has a high rate of fatalities resulting from falls from height, especially among workers employed in small firms. The sector consists mainly of micro-small and medium-sized enterprises (SMEs) with a large number of self-employed and is peripatetic in its make-up, with employment often short-term and occurring within the informal economy. The aim of this project was to identify reasonably practical measures to reduce the number of deaths of workers in micro enterprises (MEs), and those who work as sole traders, in carrying out repairs at height on residential properties....
Application of scaled world model for usability testing of fall arrest system in residential construction
Falls from heights in residential construction continue to be a leading cause of fatalities and severe injuries. Field studies are difficult to implement in residential construction, because companies are hesitant to allow observers on site to collect data while tasks are being conducted. Use of scaled world models has been recommended for experimental contexts that require high levels of ecological validity as well as internal (control) validity . In this project, we explored several attributes to design a scaled world model of residential roofing that would support controlled trials to evaluate...
Analysis of the safety conditions of scaffolding on construction sites
This paper presents the results of a study whose aim was to analyse the safety conditions of supported scaffolds (i.e., ground supported scaffolding). In 2007 the authors examined the scaffolding erected on 105 building sites in Spain. The study provides a qualitative assessment of the safety conditions of bracings, anchor ties, toe-boards, guardrails, ladders, struts, long beams, cross beams, platforms, supports, etc. In the European Union there are no legal requirements for the manufacturers of supported scaffolds, but there are some regulations on the use of this type of scaffolding on construction...
Prévention des risques de chutes de hauteur
Face aux situations dangereuses posées par le travail en hauteur, une démarche de prévention adaptée s'impose. Cette nouvelle brochure réalisée conjointement par l'INRS et l'OPPBTP (référence ED 6110) fait le point sur cette problématique. Son objectif : aider les entreprises à faire leur choix parmi les équipements de protection disponibles. Source : http://www.inrs.fr/accueil/header/actualites/brochure-risque-chute-hauteur.html
Identifying fall-protection training needs for residential roofing subcontractors
Falls remain the leading cause of injuries and fatalities in the small residential roofing industry and analogous investigations are underrepresented in the literature. To address this issue, fall-protection training needs were explored through 29 semi-structured interviews among residential roofing subcontractors with respect to recommendations for the design of fall-protection training. Content analysis using grounded theory was conducted to analyze participants' responses. Results of the analysis revealed six themes related to the design of current fall-protection training: (1) barriers...
Best practice guidelines for working on roofs
The guidelines provide practical guidance to employers, contractors, employees, designers, principals, persons who control a place of work, and architects who are engaged in work associated with roofing. The guidelines apply to a wide range of work situations where workers are placed in a position from which falls are possible. These situations include new roof installations, re-roofing, repairs and maintenance work on roofs. Importance is placed on managing the hazards associated with working on roofs by identifying hazards through planning, assessing, and controlling the hazards. This includes...
Tranchées et les excavations : Survol des risques et des moyens de prévention
Les tranchées et les excavations recèlent des dangers certains mais évitables. L'article survole les risques inhérents et les moyens pour prévenir les accidents. Il est essentiel de planifier, d'organiser et de contrôler l'exécution des travaux, de l'ouverture à la fermeture du chantier, afin de diminuer, voire même éliminer les dangers et maîtriser les risques d'accident et ainsi assurer un milieu de travail sain et sûr. Source : Creuser en toute sécurité . Prévenir aussi Volume...
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