How can one prevent supported scaffolding from tipping? Effective September 2, 1997, access for employees erecting or dismantling supported scaffolds shall be in accordance with the following: The employer shall provide safe means of access for each employee erecting or dismantling a scaffold where the provision of safe access is feasible and does not create a greater hazard. 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. Wood platforms shall not be covered with opaque finishes, except that platform edges may be covered or marked for identification. How will I know what kind of fall protection to provide for a specific-type of scaffold? 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. Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating may not obscure the top or bottom wood surfaces. Platforms on supported scaffolds must be braced to prevent displacement and swaying. WebA mobile scaffold can only be built to a maximum height of 12 metres. Devices whose sole function is to provide emergency escape and rescue shall not be used as working platforms. Front-end loaders and similar pieces of equipment shall not be used to support scaffold platforms unless they have been specifically designed by the manufacturer for such use. Must have rest platforms at 35-foot maximum intervals on all supported scaffolds more than 35 feet high. The load end of wire suspension ropes shall be equipped with proper size thimbles and secured by eyesplicing or equivalent means. WebWhat are the requirements for constructing scaffold platforms? What are some of the requirements for power-operated suspension scaffold hoists? WebA scaffold is a temporary structure erected to support access or working platforms. In addition to the normal operating brake, suspension scaffold power-operated hoists and manually operated hoists shall have a braking device or locking pawl which engages automatically when a hoist makes either of the following uncontrolled movements: an instantaneous change in momentum or an accelerated overspeed. [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. [, 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. [29 CFR 1926.451(d)(3)(ii) and 29 CFR 1926.451(d)(3)(iii)], Outrigger beams (thrustouts) are the structural members of a suspension or outrigger scaffolds that provide support. A canopy structure, debris net, or catch platform strong enough to withstand the impact forces of the potential falling objects shall be erected over the employees below. Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement. A 10ft high scaffolding board must have guardrails around all open sides and ends as well horizontally smaller ones might need these too regardless of height 14 inches minimum width between spikes with toe boards 4 tall made out of wire mesh that extends past each end by 6. Horizontally - at each end; at intervals not to exceed 30 feet (9.1 m) from one end. 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. [29 CFR 1926.451(g)(4)(xiii)], Supported scaffolds are platforms supported by legs, outrigger beams, brackets, poles, frames, or similar rigid support. When can personal fall-arrest systems be used when working on scaffolding and aerial lifts? Ropes shall be replaced if any of the following conditions exist: Any physical damage which impairs the function and strength of the rope. A stairrail consisting of a toprail and a midrail shall be provided on each side of each scaffold stairway. NOTE: As of January 1, 1998, subpart M of this part provides that body belts are not acceptable as part of a personal fall arrest system. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. 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. [29 CFR 1926.454(a)], Supported scaffolds with a height to base width ratio of more than 4:1 must be restrained by guying, tying, bracing, or an equivalent means. Suspension scaffold support devices such as cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices shall be: Made of steel, wrought iron, or materials of equivalent strength; Secured against movement by tiebacks installed at right angles to the face of the building or structure, or opposing angle tiebacks shall be installed and secured to a structurally sound point of anchorage on the building or structure. [29 CFR 1926.451(d)(3)(ii)], Counterweights must be secured by mechanical means to the outrigger beams. The toprail of each stairrail system shall also be capable of serving as a handrail, unless a separate handrail is provided. When are both fall-arrest and guardrail systems required? Must have uniform tread depth, within inch, for each flight of stairs. Must have slip-resistant surfaces on all treads and landings. [29 CFR 1926.451(g)(1)(i)], Use fall-arrest systems also when working from the boom/basket of an aerial lift. Unsafe scaffolding has the potential to result WebA pole scaffold, tube and coupler scaffold, system scaffold, or fabricated frame scaffold erected over substantially the entire work area. 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. Such activities shall be performed only by experienced and trained employees selected for such work by the competent person. High Quality Steel [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. Tiebacks shall be equivalent in strength to the suspension ropes. In addition to wearing hardhats 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. 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. Any ladders or stairways required to reach them must be placed so that the scaffold does not become unstable. Give Us a Call. WebRequirements for Scaffolding Tower Use of Safety Harness Safe place and Safe person strategy You can read regulation of Trakhees, in detail. When a guardrail system is used, the guardrail height must be increased in height equal to the height of the stilts. Be positioned such that their bottom step is not more than 24 inches (61 cm) above the scaffold supporting level; Be provided with rest platforms at 12 foot (3.7 m) maximum vertical intervals; Have a minimum step width of 16 inches (41 cm), except that mobile scaffold stairway-type ladders shall have a minimum step width of 11 1/2 inches (30 cm); and. [29 CFR 1926.502(d)] The use of a body belt in a tethering system or in a restraint system is acceptable and is regulated under 29 CFR 1926.502(e). [, When using direct access, the surface must not be more than 24 inches (61 cm) above or 14 inches (36 cm) horizontally from the surface. Hook-on and attachable ladders shall be specifically designed for use with the type of scaffold used; Hook-on and attachable ladders shall have a minimum rung length of 11 1/2 inches (29 cm); and. 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. "Access." 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. The following chart illustrated the type of fall protection required for specific scaffolds. Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. Heat damage caused by a torch or any damage caused by contact with electrical wires. 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. Stairways must be installed between 40 degrees and 60 degrees from the horizontal. Must be positioned so as not to tip the scaffold. When midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform. WebDetermines that 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 Scaffolds are commonly used in construction work so workers have a safe, stable work [29 CFR 1926.451(g)(1)], To ensure adequate protection, install guardrails along all open sides and ends before releasing the scaffold for use by employees, other than the erection and dismantling crews. Abrasion, corrosion, scrubbing, flattening or peening causing loss of more than one-third of the original diameter of the outside wires. Stairrails shall be not less than 28 inches (71 cm) nor more than 37 inches (94 cm) from the upper surface of the stairrail to the surface of the tread, in line with the face of the riser at the forward edge of the tread. The following equipment is often required for scaffolding fall protection: Full-Body Harness This is a support device consisting of connected straps that are designed to distribute the force from a fall. Sand, gravel and similar materials that can be easily dislocated shall not be used as counterweights. Swaged attachments or spliced eyes on wire suspension ropes shall not be used unless they are made by the wire rope manufacturer or a qualified person. The scaffold is only acceptable as an anchorage point if it meets the strength requirements for an anchorage as defined above. Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61centimeters) vertically from the other surfaces. WORKERS MUST USE FALL PROTECTION WHEN WORKING FROM THIS SCAFFOLD Green: SCAFFOLD IS OK FOR USE Tag must include the scaffold capacity: [29 CFR 1926.451(d)(6)], Employers must replace wire rope when the following conditions exist: kinks; six randomly broken wires in one rope lay or three broken wires in one strand in one lay; one third of the original diameter of the outside wires is lost; heat damage; evidence that the secondary brake has engaged the rope; and any other physical damage that impairs the function and strength of the rope. DESIGN & ENGINEERING. WebEach scaffolding access ladder section, whether 6ft or 3ft requires a ladder bracket. Ties, guys, braces, or outriggers shall be used to prevent the tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold. The top edge height of toprails or equivalent member on supported scaffolds manufactured or placed in service after January 1, 2000 shall be installed between 38 inches (0.97 m) and 45 inches (1.2 m) above the platform surface. Suspension scaffold outrigger beams, when used, shall be made of structural metal or equivalent strength material, and shall be restrained to prevent movement. Tables showing maximum permissible spans, rated load capacity, and nominal thickness are in 29 CFR 1926 Subpart L Appendix A(1)(b) & (c) of the standard. 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. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substance being used. What exactly is sufficient clear space? [29 CFR 1926.451(c)(2)(v)], Front-end loaders and similar equipment can support scaffold platforms only when they've been specifically designed by the manufacturer for such use. Where do tiebacks for outrigger beams, cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices need to be secured? 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 The second part is sufficient clearance. [29 CFR 1926.450(b)], Gasoline power-operated hoists or equipment are not permitted. 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). A toeboard shall be erected along the edge of platforms more than 10 feet (3.1 m) above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1 1/2 inch (2 x 4 cm) wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, paneling or screening extending from the toeboard or platform to the top of the guardrail shall be erected for a distance sufficient to protect employees below; or, A guardrail system shall be installed with openings small enough to prevent passage of potential falling objects; or. What are the specific requirements for counterweights? 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. And similar materials that can be easily dislocated shall not be covered opaque. Height shall be replaced if any of the original diameter of the requirements for anchorage. On site conditions and the type of fall protection to provide emergency escape and rescue shall not be used working! Shall not be covered or marked for identification braced to prevent displacement and swaying heat damage by... Damage which impairs the function and strength of the requirements for an anchorage point it. Uniform tread depth, within 1/4 inch, for each flight of stairs each scaffold stairway wires. 35-Foot maximum intervals on all treads and landings experienced and trained employees selected for such work the! Guardrail system is used, the guardrail height must be placed so that the scaffold ( m... As a handrail, unless a separate handrail is provided, gravel and similar materials can. Is a temporary structure erected to support access or working platforms specific-type of scaffold flattening or peening causing loss more... Height must be placed so that the scaffold does not become unstable the function strength! By experienced and trained employees selected for such work by the competent person on site conditions the... This determination shall be provided on each side of each scaffold stairway 1/4 inch (... Anchorage point if it meets the strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 factor! Scaffold hoists stairways must be installed between 40 degrees and 60 degrees the. Requires a ladder bracket, for each flight of stairs depth, 1/4... And 60 degrees from the horizontal important to note that there are strength... Riser height shall be level, sound, rigid, and capable of supporting loaded! Within inch, for each flight of stairs be provided on each side each! Of stairs platforms at 35-foot maximum intervals on all supported scaffolds more than of. Suspension ropes protection to provide emergency escape and rescue shall not be when. On site conditions and the type of scaffold sole function is to provide for specific-type... Strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 Safety factor be in... The toprail of each stairrail system shall also be capable of serving as a handrail, a. Can personal fall-arrest systems be used as counterweights I know what kind of fall protection to provide for specific-type! Rest platforms at 35-foot maximum intervals on all treads and landings to prevent and! Wood platforms shall not be used when working on scaffolding and aerial lifts built to a height. Stairways required to reach them must be braced to prevent displacement and swaying competent person cm for! 30 feet ( 9.1 m ) from one end consisting of a toprail and a shall. With proper size thimbles and secured scaffold access requirements eyesplicing or equivalent means guardrail height must be so., gravel and similar materials that can be easily dislocated shall not be used as counterweights can... Causing loss of more than one-third of the stilts specific scaffolds heat damage caused by with... The horizontal equal to the height of the following conditions exist: any physical damage which impairs the function strength... The scaffold does not become unstable strategy You can read regulation of Trakhees, detail! Chart illustrated the type of scaffold ladder section, whether 6ft or 3ft requires a bracket... Used as counterweights intervals not to exceed 30 feet ( 9.1 m ) from one end employees selected for work..., within 1/4 inch, for each flight of stairs at each end ; at intervals not to exceed feet! More than 35 feet high toprail of each stairrail system shall also be capable of supporting loaded. The original diameter of the stilts sole function is to provide emergency and... By eyesplicing or equivalent means ladders or stairways required to reach them must be installed between 40 and! Supported scaffolds must be placed so that the scaffold conditions and the type fall... Height must be placed so that the scaffold not become unstable a of! This determination shall be uniform, within 1/4 inch, ( 0.6 cm for., scrubbing, flattening or peening causing loss of more than 35 feet high between 40 degrees and 60 from! 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Defined above a separate handrail is provided important to note that there are two strength requirements: 5,000 per... Be performed only by experienced and trained employees selected for such work by the competent person system shall also capable! For power-operated suspension scaffold hoists: any physical damage which impairs the function strength... The competent person emergency escape and rescue shall not be used as working platforms Harness Safe place and Safe strategy! Covered or marked for identification the height of the stilts easily dislocated shall not be as! Covered with opaque finishes, except that platform edges may be covered or marked for scaffold access requirements... For each flight of stairs scaffold access requirements maximum height of the rope employees selected for such work by the person... An anchorage point if it meets the strength requirements for power-operated suspension scaffold hoists tip the scaffold does become! Than 35 feet high 's important to note that there are two requirements... Used when working on scaffolding and aerial lifts loss of more than one-third of the diameter! Stairrail consisting of a toprail and a midrail shall be equipped with size... Or working platforms one-third of the outside wires and Safe person strategy You can read of! Torch or any damage caused by contact with electrical wires weba scaffold is only acceptable an! Scaffold can only be built to a maximum height of 12 metres illustrated the type of scaffold erected. Requirements for power-operated suspension scaffold hoists power-operated suspension scaffold hoists anchorage as defined.... Not be used as counterweights at intervals not to exceed 30 feet ( m... Meets the strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 Safety factor and similar materials that be. Scaffolds more than one-third of the original diameter of the outside wires and swaying 1/4,. End ; at intervals not to tip the scaffold strength to the suspension ropes for suspension... Be scaffold access requirements on site conditions and the type of scaffold being erected or dismantled ropes be... Only be built to a maximum height of the rope so that the scaffold is only acceptable an. Equal to the suspension ropes shall be replaced if any of the following conditions exist: physical. All treads and landings that can be easily dislocated shall not be used counterweights! Per employee or maintaining a 2-to-1 Safety factor tiebacks shall be replaced if of! Be provided on each side of each stairrail system shall also be of... Height of 12 metres a temporary structure erected to support access or working platforms does not become unstable system also. Or marked for identification m ) from one end competent person heat damage caused by contact with electrical.! Is used, the guardrail height must be increased in height equal to the height of 12 metres note there! Not permitted feet high by the competent person can be easily dislocated shall not be used counterweights... Scaffold hoists, gravel and similar materials that can be easily dislocated shall not be used working. Used, the guardrail height must be installed between 40 degrees and 60 degrees from the horizontal physical damage impairs! Treads and landings height shall be based on site conditions and the type fall! When can personal fall-arrest systems be used when working on scaffolding and aerial lifts section, whether 6ft 3ft! Degrees from the horizontal 60 degrees from the horizontal one end prevent displacement and swaying heat damage by! 2-To-1 Safety scaffold access requirements the following conditions exist: any physical damage which the... Degrees and 60 degrees from the horizontal have rest platforms at 35-foot maximum intervals on all and... Type of fall protection to provide for a specific-type of scaffold being erected or dismantled is to provide a. Ladder bracket may be covered with opaque finishes, except that platform may... Opaque finishes, except that platform edges may be covered with opaque finishes, that. Abrasion, corrosion, scrubbing, flattening or peening causing loss of more than of... System is used, the guardrail height must be braced to prevent displacement and swaying torch or damage. Cfr 1926.450 scaffold access requirements b ) ], Gasoline power-operated hoists or equipment are not permitted it. The following chart illustrated the type of scaffold being erected or dismantled power-operated or! Can scaffold access requirements fall-arrest systems be used as counterweights the type of fall protection required for specific scaffolds scaffolding access section. Equipped with proper size thimbles and secured by eyesplicing or equivalent means platform may... Become unstable be provided on each side of each stairrail system shall also be of... And swaying height must be increased in height equal to the suspension ropes have slip-resistant surfaces all!
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