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Construction Safety Scaffolds

2. Supplemental Resources. The Basics of Occupational Safety (course text)The text does not cover construction-related safetySelected Internet websites, as noted in this presentation. 3. Objectives. Recognize basic scaffold safety issuesCompetent person dutiesSafety factorFall protection . 4. S

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Construction Safety Scaffolds

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    1. 1 Construction Safety Scaffolds PUBH 3310 November 15, 2010

    2. 2 Supplemental Resources The Basics of Occupational Safety (course text) The text does not cover construction-related safety Selected Internet websites, as noted in this presentation

    3. 3 Objectives Recognize basic scaffold safety issues Competent person duties Safety factor Fall protection

    4. 4 Scaffolds

    5. 5 Introduction Scaffolds temporary work platforms, widely used in construction to provide access to elevated locations Scaffolds are suspended (rope or cable) or supported Hazards include: Falls (the most common cause of construction fatalities) Collapse Falling objects Scaffold risk is high, so extreme precautions must be taken OSHA issued a scaffold standard for construction in 1996 29 CFR 1926.450

    6. 6 Scaffold Safety Scaffold Precautions (OSHA requirements) Competent person must supervise scaffold installation & removal, fall protection, etc. Fall protection systems are required above 10 foot height Guard rails or fall arrest systems Scaffolds must have excess capacity (“safety factor”) 4x load capacity for scaffold 6x load capacity for rope and hardware Scaffolds must be stable Maximum 4:1 height ratio for free-standing scaffolds Guys, ties for scaffolds over 4:1 height Adequate foundation, plumbed and braced

    7. 7 Scaffold Safety Scaffold precautions (cont.) Scaffold platform construction Fully planked or decked Gaps and openings restricted, overlap planks No modification or mixing of scaffold components from different manufacturers Safe access No climbing cross braces Rest platforms provided Falling object protection Hardhats required Protect employees below Barricades Toe boards at edges of platforms Panels, screens, canopies allowed

    8. 8 Scaffold Safety Scaffold precautions (cont.) Safe scaffold use Never overload scaffolds Inspection by competent person Do not move mobile scaffolds while employees are on Maintain clearance near powerlines Do not work on snow or ice covered platforms Use tag lines on swinging loads Do not work during storms or high winds

    9. 9 Web References for Construction http://www.cdc.gov/niosh/docs/chartbook/ (NIOSH Worker Health Chartbook) http://www.bls.gov/ (Bureau of Labor Statistics) http://www.trenchsafety.org/trench/sample/ (Sample online training) http://physics.uwstout.edu/geo/sect6.htm (University of Wisconsin, Engineering Properties of Soils) http://www.osha.gov/SLTC/trenchingexcavation/index.html (OSHA excavations) http://www.osha.gov/SLTC/scaffolding/index.html (OSHA scaffolds)

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