[29 CFR 1926.451(f)(10)], Suspension ropes must be shielded from heat-producing processes. In general, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with paragraph (a) of this section. Abrasion, corrosion, scrubbing, flattening or peening causing loss of more than one-third of the original diameter of the outside wires. May forklifts, front-end loaders, or similar equipment support platforms? [ 29 CFR 1926.451(a)(1) ] A qualified person must design the scaffolds, which are loaded in WebTower scaffolds must comply with the standard required for all types of scaffolds, eg double guardrails, toeboards, bracing and access ladder. Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled. Such activities shall be performed only by experienced and trained employees selected for such work by the competent person. [29 CFR 1926.451(f)(1)] Load carrying timber members should be a minimum of 1,500 lb-f/in2 construction grade lumber. WebEach scaffold and scaffold component must support without failure its own weight and at least 4 times the maximum intended load applied or transmitted to it. The manufacturer must approve any alterations to the stilts. At all points of a scaffold where the platform changes direction, such as turning a corner, any platform that rests on a bearer at an angle other than a right angle shall be laid first, and platforms which rest at right angles over the same bearer shall be laid second, on top of the first platform. Tiebacks shall be secured to a structurally sound anchorage on the building or structure. [29 CFR 1926 Subpart L Appendix A(1)(a)], Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 cm) wide. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. To ensure stability for fall protection, scaffolds can be supported by: legs, Must have uniform tread depth, within inch, for each flight of stairs. Must have their lowest rung no more than 24 inches above the level on which the scaffold is supported. Must be installed between 40 degrees and 60 degrees from the horizontal. [, When scaffold platforms are more than 24 inches (61 cm) above or below a point of access, ladders, ramps, walkways, or similar surfaces must be used. A study of the degradation properties of Stairways shall be installed between 40 degrees and 60 degrees from the horizontal. Employees shall be prohibited from working on scaffolds covered with snow, ice, or other slippery material except as necessary for removal of such materials. Fall arrest systems should protect these employees. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. [29 CFR 1926.451(d)(3)(ix) and 29 CFR 1926.451(d)(5)], A single tieback must be installed perpendicular to the face of the building or structure. What are the clearance distance between scaffolds and power lines? There are no specific requirements under these rules that address access gates in scaffold configurations incorporating a ladder-access to the work platform in WebScaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Note to paragraph (g)(1): The fall protection requirements for employees installing suspension scaffold support systems on floors, roofs, and other elevated surfaces are set forth in subpart M of this part. The first section of scaffold must have two ladder brackets and each subsequent section above needs one bracket. Each stairway must be at least 18 inches between stair rails. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills or other adequate firm foundation. Direct connections to roofs and floors, and counterweights used to balance adjustable suspension scaffolds, shall be capable of resisting at least 4 times the tipping moment imposed by the scaffold operating at the rated load of the hoist, or 1.5 (minimum) times the tipping moment imposed by the scaffold operating at the stall load of the hoist, whichever is greater. Must have rest platforms at 35-foot maximum intervals on all supported scaffolds more than 35 feet high. Crossbracing is acceptable in place of a midrail when the crossing point of two braces is between 20 inches (0.5 m) and 30 inches (0.8 m) above the work platform or as a toprail when the crossing point of two braces is between 38 inches (0.97 m) and 48 inches (1.3 m) above the work platform. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria of paragraph (g)(4). Suspension ropes supporting adjustable suspension scaffolds shall be of a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. Must have a maximum space between rungs of 16 inches. This provision does not preclude the use of systems which are designed to function both as suspension scaffolds and emergency systems. Have slip-resistant treads on all steps and landings. c) Added guidance for assessing base soil conditions. Steps and rungs of ladders and stairways must line up vertically with each other between rest platforms. The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: Exception to paragraph (f)(6): Scaffolds and materials may be closer to power lines than specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. Any part of a scaffold damaged or weakened such that its strength is less than that required by paragraph (a) of this section shall be immediately repaired or replaced, braced to meet those provisions, or removed from service until repaired. maximum lift heights. Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. In addition to meeting the requirements of 1926.502(d), personal fall arrest systems used on scaffolds shall be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. The harness is worn over How can one prevent supported scaffolding from tipping? the grounding conductor is not attached in series with the welding process or the work piece. [29 CFR 1926.450(b)]. Scaffold [29 CFR 1926.451 (b) (2)] [29 CFR 1926.451(f)(11)], Power-operated hoists used to raise or lower a suspended scaffold must be tested by a qualified testing laboratory. Scaffolds (Staging). [29 CFR 1926.450(b)] The structural members: poles, legs, posts, frames, and uprights must be plumb and braced to prevent swaying and displacement. Must have their bottom step no more than 24 inches above the level on which Any of these independent modules or units should form a base. When lanyards are connected to horizontal lifelines or structural members on a single-point or two-point adjustable suspension scaffold, the scaffold shall be equipped with additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in the event one or both of the suspension ropes fail. Single tiebacks installed at an angle are prohibited. What exactly is sufficient clear space? Ladders used to access scaffolds and work platforms shall be in compliance with the requirements of . What materials can be used to increase the working level height of employees on supported scaffolds? The maximum distance from the face for outrigger scaffolds shall be 3 inches (8 cm); The maximum distance from the face for plastering and lathing operations shall be 18 inches (46 cm). This provision does not preclude the use of common support members, such as "T" sections, to support abutting planks, or hook on platforms designed to rest on common supports. What are the capacity requirements for all scaffolds? Two tie-backs installed at opposing angles are required when a perpendicular tieback cannot be installed. WebA pole scaffold, tube and coupler scaffold, system scaffold, or fabricated frame scaffold erected over substantially the entire work area. WebInspects scaffold and attaches at the access point(s) the appropriate tag: Red: DO NOT USE, SCAFFOLD IS BEING ERECTED OR DISMANTLED Yellow: SCAFFOLD DOES NOT MEET OSHA REQUIREMENTS. The use of shore or lean-to scaffolds is prohibited. Safe points of anchorage include structural members of buildings, but do not include standpipes, vents, other piping systems, electrical conduit, outrigger beams, or counterweights. First, it's important to note that there are two strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 safety factor. [29 CFR 1926.451(a)(6)] Scaffolds and scaffold components must not be loaded in excess of their maximum intended loads or rated capacities, whichever is less. What are some of the requirements for power-operated suspension scaffold hoists? Paragraphs (g)(1)(i) through (vii) of this section establish the types of fall protection to be provided to the employees on each type of scaffold. Occupational Safety & Health Administration, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Worker Deaths by Falls: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. Vertical lifelines, independent support lines, and suspension ropes shall not be attached to each other, nor shall they be attached to or use the same point of anchorage, nor shall they be attached to the same point on the scaffold or personal fall arrest system. Where there is a danger of tools, materials, or equipment falling from a scaffold and striking employees below, the following provisions apply: The area below the scaffold to which objects can fall shall be barricaded, and employees shall not be permitted to enter the hazard area; or. Each platform on all working levels of scaffolds shall be fully planked or decked between the front uprights and the guardrail supports as follows: Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch (2.5 cm) wide, except where the employer can demonstrate that a wider space is necessary (for example, to fit around uprights when side brackets are used to extend the width of the platform). Must have slip-resistant surfaces on all treads and landings. When an outrigger beam is used, the shackle or clevis with which the rope is attached to the outrigger beam shall be placed directly over the center line of the stirrup. Web(1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold 5.3.11 Scaffolding fittings (couplers) shall be lifted and lowered in a safe manner using Gin Wheel, Rope and Canvas bucket, throwing of scaffolding tubes & fittings to the work area shall not be permitted. Scaffolds are commonly used in construction work so workers have a safe, stable work The stall load of any scaffold hoist shall not exceed 3 times its rated load. Stilts may be used on a large area scaffold. Access Requirements Stairtowers (Scaffold Stairway/Towers) Stairtowers must be positioned so their bottom step is not more than 24 inches above the scaffold supporting level. Unsafe scaffolding has the potential to result Scaffolding is the solution to many access issues, providing a safe and legal means of access for workers at height. It is recommended above many other means of access, especially if the work will be prolonged or involve multiple workers, tools, equipment or materials. When the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures, the employer shall place such potential falling objects away from the edge of the surface from which they could fall and shall secure those materials as necessary to prevent their falling. [29 CFR 1926.451(g)(1)], A competent person must determine the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. EQUIPMENT. What types of scaffolds does the standard prohibit? [29 CFR 1926.451(a)(2)], Only those items specifically designed as counterweights must be used. 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