A personal fall-arrest system is a system used to arrest an employee in a fall from a working level. Unstable objects shall not be used as working platforms. [29 CFR 1926.451(d)(7)], Drum hoists must contain no less than four wraps of the rope at the lowest point. Can sand, masonry units, or rolls of roofing felt be used for counterweights? Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. What exactly is sufficient clear space? [29 CFR 1926.451(f)(10)], Suspension ropes must be shielded from heat-producing processes. [29 CFR 1926.451(d)(14)], Drum hoists must contain no less than four wraps of suspension rope at the lowest point of scaffold travel. [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. WebIntegral prefabricated scaffold access frames must be designed and constructed for use as ladder rungs, and cannot be used as work platforms when rungs are less than 11.5 inches in Stairways shall be installed between 40 degrees and 60 degrees from the horizontal. The top edge height on supported scaffolds manufactured and placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 inches (0.9 m) and 45 inches (1.2 m). Exception to paragraph (b)(1): The requirement in paragraph (b)(1) to provide full planking or decking does not apply to platforms used solely as walkways or solely by employees performing scaffold erection or dismantling. d) Added precautions around power lines. For all scaffolds not otherwise specified in paragraphs (g)(1)(i) through (g)(1)(vi) of this section, each employee shall be protected by the use of personal fall arrest systems or guardrail systems meeting the requirements of paragraph (g)(4) of this section. Scaffolds are commonly used in construction work so workers have a safe, stable work To reduce the possibility of welding current arcing through the suspension wire rope when performing welding from suspended scaffolds, the following precautions shall be taken, as applicable: An insulated thimble shall be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. Scaffolds and scaffold components shall be inspected for visible defects by a competent person before each work shift, and after any occurrence which could affect a scaffold's structural integrity. What are the requirements for access to scaffolds? [ 29 CFR 1926.451(a)(1) ] A qualified person must design the scaffolds, which are loaded in The scaffold needs to be secure and otherwise not tip when climbing whatever the form of access. Must be installed between 40 degrees and 60 degrees from the horizontal. Provide scaffold platforms more than 2 feet (0.6 m) above or below a point of access with at least one of the following means of access: Portable, hook-on, or attachable ladder Stairway-type ladder Ladder stand Stair tower (scaffold stairway or tower) Ramp Walkway Integral prefabricated scaffold access Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to a point that permits safe installation and use. 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. High Quality Steel When a guardrail system is used, the guardrail height must be increased in height equal to the height of the stilts. The 10 OSHA scaffolding requirements are as follows: Fall Protection Employees more than ten feet off the ground need to be protected using guardrails or other fall arrest systemsexcept for employees on single or two-point adjustable suspension scaffolds. [29 CFR 1926.451(d)(3)(ii)], Counterweights must be secured by mechanical means to the outrigger beams. This standard requires the scaffold to resist tipping against two times or more the load exerted on it when a worker accesses, uses, or exits it. NY Scaffold is the leading specialty Scaffold Erector Company covering the whole of the US. 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. WebRequirements for Scaffolding Tower Use of Safety Harness Safe place and Safe person strategy You can read regulation of Trakhees, in detail. Must have slip-resistant surfaces on all treads and landings. The portion of the tail line that hangs free below the scaffold shall be guided or retained, or both, so that it does not become grounded; Each hoist shall be covered with insulated protective covers; In addition to a work lead attachment required by the welding process, a grounding conductor shall be connected from the scaffold to the structure. Heat damage caused by a torch or any damage caused by contact with electrical wires. There are no specific requirements under these rules that address access gates in scaffold configurations incorporating a ladder-access to the work platform in Midrails, screens, mesh, intermediate vertical members, solid panels, and equivalent structural members of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along the midrail or other member of at least 75 pounds (333 n) for guardrail systems with a minimum 100 pound toprail capacity, and at least 150 pounds (666 n) for guardrail systems with a minimum 200 pound toprail capacity. The top guy, tie or brace of completed scaffolds shall be placed no further than the 4:1 height from the top. [, 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. 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. Fall arrest systems should protect these employees. Excess suspension wire rope and any additional independent lines from grounding shall be insulated; The suspension wire rope shall be covered with insulating material extending at least 4 feet (1.2 m) above the hoist. this Section and Section 24.B. [29 CFR 1926.451(f)(1)] Load carrying timber members should be a minimum of 1,500 lb-f/in2 construction grade lumber. What materials are unacceptable for guardrails? Install guys, ties, or braces at the closest horizontal member to the 4:1 height and repeat vertically with the top restraint no further than the 4:1 height from the top. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. [29 CFR 1926.453(b)(2)(v) and 29 CFR 1926.451(g)(3)], Vertical or horizontal lifelines may be used. Must be specifically designed and constructed for use as ladder rungs. 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. Tiebacks shall be equivalent in strength to the suspension ropes. WebScaffolding Access Requirements 9 out of 10 based on 159 ratings. How will I know what kind of fall protection to provide for a specific-type of scaffold? Must have a minimum rung length of 11 inches, and a maximum space between rungs of 16 inches. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. [29 CFR 1926.451(a)(1)]Solid sawn wood, fabricated planks, and fabricated platforms may be used as scaffold planks following the recommendations by the manufacturer or a lumber grading association or inspection agency. When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. Fall protection. Handrails, and toprails that serve as handrails, shall provide an adequate handhold for employees grasping them to avoid falling. This section highlights OSHA standards and documents related How can one prevent supported scaffolding from tipping? Crossbraces shall not be used as a means of access. 22.A.03 Prior to commencing any activity that requires work in elevated areas, all provisions for access and fall protection shall be delineated in the Site-Specific Fall Have a maximum spacing between rungs of 16 3/4 inches (43 cm). type of scaffold (tube and fitting or system) maximum bay lengths. [29 CFR 1926.450(b)]. Direct access to or from another surface shall be used only when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other surface. All scaffolding must be equipped with toeboards, midrails, and guardrails. Must have their lowest rung no more than 24 inches above the level on which the scaffold is supported. How to reduce the risk of injury when using bakers scaffolds c) Added guidance for assessing base soil conditions. Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled. Manually operated hoists shall require a positive crank force to descend. What are the requirements for work on platforms cluttered with debris? WebScaffold design. When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. Are guardrails required on all open sides of scaffolding? [29 CFR 1926.451(c)(2)(iv)]. A safe point of access should be present during erection and dismantling operations. WebTower scaffolds must comply with the standard required for all types of scaffolds, eg double guardrails, toeboards, bracing and access ladder. Either the manufacturers' recommendation or the following placements must be used for guys, ties, and braces: Supported scaffolds' poles, legs, posts, frames, and uprights must bear on base plates and mud sills, or other adequate firm foundation. Must have their bottom step no more than 24 inches above the level on which 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. [29 CFR 1926.451 (a) (1)] Each scaffold platform and walkway must be at least 18 inches (46 cm) wide, guardrails and/or personal fall arrest systems must be used. [, All support devices must rest on surfaces capable of supporting at least four times the load imposed on them by the scaffold when operating at the rated load of the hoist, or at least one-and-a-half times the load imposed on them by the scaffold at the stall capacity of the hoist, whichever is greater. The space must not exceed 9 inches (24.1 cm) when side brackets or odd-shaped structures result in a wider opening between the platform and the uprights. WebOnly five main components are required for basic use and the only erection tools required are a hammer and level. Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing, or equivalent means, as follows: Guys, ties, and braces shall be installed at locations where horizontal members support both inner and outer legs. WORKERS MUST USE FALL PROTECTION WHEN WORKING FROM THIS SCAFFOLD Green: SCAFFOLD IS OK FOR USE Tag must include the scaffold capacity: Employees shall be prohibited from working on scaffolds covered with snow, ice, or other slippery material except as necessary for removal of such materials. The harness is worn over Gears and brakes of power-operated hoists used on suspension scaffolds shall be enclosed. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. [29 CFR 1926.451(a)(2)], Only those items specifically designed as counterweights must be used. Cross braces on tubular welded frame scaffolds shall not be used as a means of access or egress. Single tiebacks installed at an angle are prohibited. When can personal fall-arrest systems be used when working on scaffolding and aerial lifts? When winding drum hoists are used on a suspension scaffold, they shall contain not less than four wraps of the suspension rope at the lowest point of scaffold travel. [29 CFR 1926.451(d)(3)(x)]. 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 maximum intended load applied or transmitted to it. Guardrail systems shall be installed before the scaffold is released for use by employees other than erection/dismantling crews. On scaffolds where scaffold planks are abutted to create a long platform, each abutted end shall rest on a separate support surface. [29 CFR 1926 Subpart L Appendix A(1)(b) & (c)]. What are the clearance distance between scaffolds and power lines? Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. Portable, hook-on, and attachable ladders (Additional requirements for the proper construction and use of portable ladders are contained in subpart X of this part -- Stairways and Ladders): Portable, hook-on, and attachable ladders shall be positioned so as not to tip the scaffold; Hook-on and attachable ladders shall be positioned so that their bottom rung is not more than 24 inches (61 cm) above the scaffold supporting level; When hook-on and attachable ladders are used on a supported scaffold more than 35 feet (10.7 m) high, they shall have rest platforms at 35-foot (10.7 m) maximum vertical intervals. [29 CFR 1926.451(d)(10)], Suspension ropes supporting adjustable suspension scaffolds must be a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. All suspension scaffold support devices, such as outrigger beams, cornice hooks, parapet clamps, and similar devices, shall rest on surfaces capable of supporting at least 4 times the load imposed on them by the scaffold operating at the rated load of the hoist (or at least 1.5 times the load imposed on them by the scaffold at the stall capacity of the hoist, whichever is greater). Each end of a platform 10 feet or less in length shall not extend over its support more than 12 inches (30 cm) unless the platform is designed and installed so that the cantilevered portion of the platform is able to support employees and/or materials without tipping, or has guardrails which block employee access to the cantilevered end. What are the fall protection requirements for all scaffolds? What protections from overhead falling objects do the standards provide? Web(1) When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, [, A competent person must evaluate all direct connections prior to use to confirm that the supporting surfaces are able to support the imposed load. Zelienople, PA 16063. Where swinging loads are being hoisted onto or near scaffolds such that the loads might contact the scaffold, tag lines or equivalent measures to control the loads shall be used. 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. WebAccess: Scaffolds must have an acceptable form of access (e.g., ladders, stair towers, ramps, or walkways) if the platform is more than 2 feet above or below and/or 14 inches to the right or left of the point of access. Guardrail systems are explained below in another question. On scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement. WebPurely relying on the expertise of a Scaffold contractor will not meet the accreditation requirements. What types of scaffolds does the standard prohibit? 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