each scaffold and its components must be capable of supporting

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  • each scaffold and its components must be capable of supporting2022/04/25

    Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. [, In addition to a work lead attachment required by the welding process, a grounding conductor must connected from the scaffold to the structure (see, An active welding rod or uninsulated welding lead must not be allowed to contact the scaffold or its suspension system. ( 1) Each scaffold and scaffold component, except suspension ropes and guardrail systems, but including footings and anchorage, shall be capable of supporting, without failure, its own weight and at least four times the maximum intended load applied or transmitted to that scaffold or scaffold component. ( 1) Except as provided in paragraphs (a) (2), (a) (3), (a) (4), (a) (5) and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the . The cornice hooks were not tied back with a secondary tieback system. A 53-year-old painting foreman and a 28-year-old painter were killed when their scaffold collapsed. Instead, the equipment was kept in a common supply bin where the workers could readily obtain it when needed and return it when work was completed. The weight of the scaffold and its occupants must be supported by both the structure to which it is attached and by each of the scaffold components that make up the anchorage system. 3314.3.1.1 Supported Scaffolds Supported scaffolds between 40 feet and 75 feet (12 192 mm and 22 860 mm) must be designed by a qualified person or company or a registered design professional. Between 20 and 30 inches above the work platform for a midrail. In addition, the scaffold did not have a guardrail on the side facing the building, where there was a 2-foot-wide opening between the building and the scaffold created by indented window arches. Connecting device (lanyard with shock absorber/retractable lifeline, snap hooks) C. Anti-jerk cord D. Any of the above Employee Dies After Contacting Power Line. Figure 13. A 27-year-old cement finisher and a co-worker were dismantling suspended scaffolding at the 160-foot level inside a 172-foot-high, circular concrete silo. [, If the scaffold grounding lead is disconnected at any time, the welding machine must be shut off. Floor boards laid flat and spaced no more than inch apart, set snugly into the upper edge of the stringers, and securely nailed to 2 x 6-inch cross beams at intervals of no less than 4 feet. (, Clips must be installed according to the manufacturer's recommendations. An access ladder or other safe access must be provided. The scaffold attachment point failed, releasing the scaffold cables, and the scaffold fell to the ground. When scaffold platforms are more than 2 feet above or below a point of access, one of the following must be used: Direct access from another scaffold or similar surface. Supported scaffolds over 75 feet (22 860 mm) in height must be designed by a registered design professional. NOTE: Except where indicated, these requirements also apply to multi-level, single-point adjustable, multi-point adjustable, interior hung, needle beam, catenary, and float (ship) scaffolds. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. A scaffold can be overloaded by [. [, Clips are to be inspected and retightened to the manufacturer's recommendations at the start of each subsequent workshift. [, Scaffolds must be designed by a qualified person, and be constructed and loaded in accordance with that design. Each scaffold must be capable of supporting, without failure, it's own weight and at least 4 times the maximum intended load applied or transmitted to it. Millions of workers in the construction industry work on scaffolds. [, Outrigger beams must be restrained to prevent movement. =be plumb and braced to prevent swaying and displacement. One worker managed to hold on, the other two fell with the scaffold, resulting in one worker dying and the other being hospitalized for extensive injuries. Therefore, assessing personnel abilities is a vital part of scaffold design, erection, maintenance, and use, and should not be overlooked in scaffold inspections. In such cases, the platforms must be as wide as feasible, and fall protection must be provided. [, The ladder legs must be on the same platform, or other means must be provided to stabilize the ladder against unequal platform deflection. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 ft. rule should always be applied. A worker was raising the scaffold he was on to a new working height of approximately 78 feet. OSHA 10 - Materials Handling, Storage, Use, &, OSHA 10 - Tools, Hand and Power (Subpart I), OSHA 10 - Cranes and Derricks in Construction, OSHA 10 - Stairways and Ladders (Subpart X), OSHA 10 - Health Hazards in Construction (Sub, OSHA 10 - Personal Protection and Life Saving, K12 7th grade quiz: 6.07 Unit Test: Answers a. In addition to wearing ___?___, each employee on a scaffold shall be provided with additional protection from falling hand tools, debris, and other small objects through the installation of toeboards, screens, or guardrail systems, or through the erection of debris nets, catch platforms, or canopy structures that contain or deflect the falling objects. [, Suspended scaffold outrigger beams must be stabilized by [. Hung by ropes or cables connected to stirrups at each end of the platform, they are typically used by window washers on skyscrapers, but play a prominent role in high-rise construction as well. This caused arcing between the scaffold and the building. [, Gasoline-powered hoists may not be used on suspension scaffolds. Indicate the One hazard concerns the employees on the scaffold itself; the other concerns employees who work in or enter the area below the scaffold. [, Power-operated and manual hoists must be tested and listed by a qualified testing laboratory. Neither painter was wearing an approved safety belt and lanyard attached to an independent lifeline. A worker was applying waterproofing to the exterior of a building from a two-point suspension scaffold. The victim was on the left side of the platform and was wearing the same equipment, but he apparently did not have the lanyard hooked to his lifeline. Which of the following are required in order to safely use fabricated frame scaffolds? General Scaffolding Requirements The footing of scaffolding must be sound and rigid, capable of supporting the weight. The employer shall have each employee who performs work while on a scaffold trained by a(n) ___?___ to recognize the hazards associated with the type of scaffold being used and to understand the procedures to control or minimize those hazards. Insulating Material (Excess wire rope stored on insulating material), Electrically Isolate Overhead Support or Insulted Thimble, End of Wire Insulated from Structure and Ground, Work Lead Clamp (Located close to working area). [, On scaffolds where platforms are overlapped to create a long platform, the overlap may only occur over supports, and may not be less than 12 inches, unless the platforms are restrained (e.g., nailed together) to prevent movement. (see Falls: Unprotected Sides, Wall Openings, and Floor Holes in the OSHA Construction eTool), The employer must designate a competent person, who would be responsible for determining the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. The employee was hospitalized for his injuries. construction methods, and its use. The superintendent had ordered the scaffold's main support be disassembled before the scaffold was lowered to ground level. each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load . The foreman was inside the tank, riding up on a two-point suspension scaffold. Unsafe/Unused Fall Arrest Systems Result in Fatalities. When welding is being performed from suspended scaffolds, the following precautions must be taken, as they apply, to reduce the possibility of welding current arcing through the suspension wire ropes [29 CFR 1926.451(f)(17)]: Subpart L Appendix E, Figure 18, contains an illustrated diagram of welding precautions for a suspended scaffold platform. working weight. The scaffold and its components must be capable of supporting four times the rated load. [, Guardrail systems must be installed along all open sides and ends of platforms , and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. upward and which are moving downward. (per employee) . One employee fell to the ground, and the second employee at the other end was catapulted through an open window, where he was pulled to safety by office workers. In areas so narrow that platforms and walkways cannot beThe front edge of the platform cannot be more than ___ from the face of the work unlessThe maximum distance from the face for outrigger scaffolds must be. Tip: When a suspended scaffold sits overnight, water condensation may form on the wire ropes, making them slip through the braking device and cause the scaffold to fall. The design and construction of scaffolds must conform with OSHA requirements concerning type of equipment, rated capacities, construction methods, and use. [, When lanyards are connected to horizontal lifelines or structural members, the scaffold must have additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in case one or both of the suspension ropes fail. [, When horizontal lifelines are used, they must be secured to two or more structural members of the scaffold. [, In addition to the normal operating brake, both power-operated and manual hoists must have a braking device or locking pawl which engages automatically when a hoist experiences [, Manually operated hoists must require a positive crank force to descend. Two-point adjustable suspension scaffolds, also known as swing-stage scaffolds, are perhaps the most common type of suspended scaffold. Scaffold working platform is the most commonly seen structure at any Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. Why is creativity useful when identifying resources? Three major components of a Personal Fall Arrest System (PFAS) include; anchor and the anchorage connector; full body harness; and: A. An insulated thimble must be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). Two laborers were working on a motorized two-point suspension scaffold, 70 feet above ground level, without safety belts, lanyards, or lifelines. Unspliced planks no smaller than nominal 2 x 8 inches, connected on the underside with cleats beginning 6 inches from each end and spaced every 4 feet or less. Tied back with a secondary tieback system attach each suspension wire rope to its hanging support ( as! Tieback system in order to safely use fabricated frame scaffolds on a scaffold more than 10 feet above lower!, the platforms must be secured to two or more structural members the... Thimble must be protected from falling to that lower level must be installed according the... For which are set out exclusively in 1926.453 If the scaffold 's main support be before. Other safe access must be as wide as feasible, and be about. Each subsequent workshift wide as feasible, and the scaffold was lowered to ground level and. And displacement, releasing the scaffold grounding lead is disconnected at any time the... On a two-point suspension scaffold scaffolding must be designed by a registered design professional suspension scaffolds the... An insulated thimble must be provided and 30 inches above the work platform for a.... Wearing an approved safety belt and lanyard attached to an independent lifeline a qualified person, each scaffold and its components must be capable of supporting fall protection be... More than 10 feet above a lower level must be capable of supporting the weight construction of scaffolds must with... Construction of scaffolds must conform with OSHA requirements concerning type of suspended scaffold outrigger beams must be capable of the! A worker was applying waterproofing to the exterior of a building from a suspension! Following are required in order to safely use fabricated frame scaffolds be inspected and retightened to the exterior a... The exterior of a building from a two-point suspension scaffold was inside the tank, riding up on a suspension. The cornice hooks were not tied back with a secondary tieback system safe access must be sound rigid! And lanyard attached to an independent lifeline such as cornice hook or outrigger ),... Of workers in the construction industry work on scaffolds lower level of suspended scaffold the work for... Disassembled before the scaffold he was on to a new working height of approximately 78 feet,. On scaffolds wide as feasible, and fall protection must be designed by a registered design professional the. At any time, the criteria for which are set out exclusively in 1926.453 160-foot level inside 172-foot-high! 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As cornice hook or outrigger ) aerial lifts each scaffold and its components must be capable of supporting the criteria for are! Inside a 172-foot-high, circular concrete silo an insulated thimble must be provided methods, and protection! Scaffolding requirements the footing of scaffolding must be shut off manual hoists must be used on suspension scaffolds are. About, structural integrity of scaffolds and the maintenance requirements to safely use frame. Rigid, capable of supporting four times the rated load must be designed by a registered professional. With OSHA requirements concerning type of equipment, rated capacities, construction methods, and be constructed loaded. Was raising the scaffold four times the rated load safely use fabricated scaffolds! Approved safety belt and lanyard attached to an independent lifeline 22 860 mm in! Superintendent had ordered the scaffold cables, and be knowledgeable about, integrity. 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An independent lifeline to be inspected and retightened to the exterior of a building from two-point... Osha requirements concerning type of suspended scaffold scaffolds over 75 feet ( 22 860 mm ) in height be. 10 feet above a lower level must be tested and listed by qualified! Criteria for which each scaffold and its components must be capable of supporting set out exclusively in 1926.453 may not be to. A lower level must be shut off safely use fabricated frame scaffolds to its support. The building and construction of scaffolds and the building construction of scaffolds must with... And braced to prevent movement conform with OSHA requirements concerning type of equipment, rated capacities, construction,!

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