[, Ends of stair rails and handrails constructed so that they do not constitute a projection hazard. Since this is the main workplace, it should be sturdy enough to carry its load. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. A. building materials, paint roller extensions, scaffold components) that may be handled on them, come closer than 10 feet to the power line. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. The scaffold design must include the following: If during the inspection a defect or damage to the scaffold is discovered, the scaffold must betagged out and not used until repairs are made. Personal Fall Arrest System. Distinctive site conditions and any special features of the building structure in relation to the scaffold (e.g., overhead electric power lines or storage tanks); also consider the proximity and condition of surrounding buildings. [, Nothing that could cause a slip, trip or fall (i.e. e. Scaffold safety should be an important part of your overall safety plans. Frames and panels should also be locked together to prevent uplift. Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, they should be prevented from falling by paneling or screening extending from the toeboard to the top of the guardrail. Barricades to keep personnel out of a hazardous area. The scaffold design must include: Proper materials to construct the scaffold. A scaffold must be erected "plumb, square, and level," because: - Ans-If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. A guardrail system shall be installed with openings small enough to contain the objects. Check the level again and plumb if necessary. Scaffolds need to be erected plumb, level, squared and braced to . For long (running) scaffolds, guys, ties, and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet. For lathing and plastering, a gap of 18 inches is permitted. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. Plumb and level all scaffolds as the erection proceeds. [, Uniform riser height, within -inch, for each flight of stairs. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. [, Have rest platforms provided at a maximum of 35-foot vertical intervals. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. Do not use makeshift methods to increase the working height of the scaffold platform, such as with ladders, buckets or blocks. This would be in reference to stand alone scaffold towers. [, A scaffold stairway width of at least 18 inches between stair rails. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. [, Have uniform spacing between rungs of a maximum 16 inches. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person.Appropriate fall protection may be required by the competent person for such activities or where the . They are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Cross-braces on tubular welded frame scaffolds are not allowed to be climbed. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! We commit to utilizing our collective talent to support your risk management and insurance goals. Changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. He fell, sustaining a concussion for which he was hospitalized. They may be made of solid material or mesh with openings no greater than 1 inch. Insufficient length. The erected scaffold must support its own weight and at least four times the maximum intended load. Lanyards or connecting devices must be connected to a vertical lifeline (1st choice), a horizontal lifeline (2nd choice), or a structural member of the scaffold (last choice). [, Have rest platforms provided at a maximum of 35 foot vertical intervals. In Asia, bamboo is used as a construction material. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Be sure scaffold stays plumb and level as . (i) There must be a ladder or equivalent safe access. They should be installed along all open sides and at both ends of platforms, except when used as a walkway, the platform is the main working area of the scaffold. One concerns the employees on the scaffold itself, and the other concerns employees who may work in or enter the area below the scaffold. [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. [, No gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights, unless the employer can demonstrate that a wider space is necessary. _____ 1. That's one of the reasons why we need to keep it inspected - for safety sake! [, Be specifically designed and constructed for use as ladder rungs. Pinning - Frames and panels must be joined together vertically through the use of stacking pins or coupling, or equivalent means. No University employee shall erect scaffold greater than or equal to 20 feet. If solid sawn wood is used, it must be scaffold grade. [, Forklifts shall not be used to support scaffold platforms unless [. As they were lifting the scaffold, the top section partially separated from the adjoining section, toppled over, and contacted a power line. [, Stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing. All scaffolds must pass a safety standard test and be labeled thereafter with the sticker or label of the appropriate regulatory body. [, A landing platform at least 18 inches wide by 18 inches long at each level. Toeboards must be installed on work platforms where materials or tools will be in use. missing parts due to area obstructions). Point loading, or concentrating too much of the load in one area. The technical storage or access that is used exclusively for statistical purposes. Screw jacks must be used to level scaffolding on uneven surfaces. How to use a plumb bob. When dismantling the scaffold, check to ensure that the scaffold has not been structurally altered in a way that would make it unsafe. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. (F) Tubular welded frame scaffolds. Cross braces shall be of such length as to automatically square and align vertical members so the erected scaffold is always plumb, square, and rigid. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. 3. Canopy structures made of solid materials. Install the deck, which may be an all aluminium platform or with wood deck or LeeLite planks. Uplift is the separation of a frame from the frame below it. Legs, posts, frames, poles, and uprights must be on base plates and mud sills, or a firm foundation and, be plum b and braced. The guardrail system shall be installed along all open sides and ends of the platform before being used as a work platform by employees. Safety is one of the distinguishing characteristics of the scaffold tower industry. This will have an impact on what components you will need as well as how many of each component will be necessary to complete your tasks. Scaffolding will be properly braced with cross bracing and diagonal braces. The working surface was solidly planked. [, Any part of a scaffold that has been damaged or weakened so that it no longer meets OSHA strength requirements must either be repaired, replaced, braced, or removed from service. Scaffolds must be plumb, square and adequately braced with proper access. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. The face of the work (ex. Use this training tool to review the safety requirements for a frame scaffold, in the following phases: It is impossible for a stable structure to be built upon a foundation that does not start out square and level. Scaffolds may only be erected, altered, or dismantled under the supervision of a/an A. Find out more here or call us at 209-634-2929! When a supported scaffold reaches a height that is more than four times its minimum base dimension (4:1), it must be restrained by guys, ties, or braces to prevent it from tipping. If uplift could cause the components to separate, locking pins must be used and the components secured. The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. When brackets are used to support cantilevered platforms, they must: Figures 14 & 15. Light-duty scaffolds can support 25 pounds per square foot. All brace connections shall be made secure and checked for proper engagement of the locks. At Virginia Tech, a fall protection system (i.e. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. Be sure scaffold stays plumb and level as erection progresses. In some cases, you may choose a new scaffolding tower rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. In addition, there is a lot of information regarding building your own scaffold towers on the Internet. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. Install guys, ties and braces according to the manufacturers recommendations. A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 "General Requirements for Scaffolds" and 29 CFR 1926.452 "Additional . [, Non-mandatory examples of criteria that will enable an employer to comply with, Scaffolds are to be erected, moved, dismantled, or altered only by experienced and trained employees who have been selected for that work by the competent person. If using wooden planks, they must extend beyond the supporting Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. The scaffold was constructed on a poured concrete floor and had been leveled. Guy wires and ties prevent the scaffolding from tipping away from the building or structure, and braces are a rigid support that prevents the scaffold from tipping into the building/structure. A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle. Stack up the planks, braces and bases on the bottom between the wheel wells, and stack the frames on top. (j) Scaffold planks must extend over their end supports not less than 6 inches nor more than 18 inches. A checklist of items a competent person should complete daily for scaffold safety. If using wooden planks, they must extend beyond the supporting points The inspections also must verify that is the scaffold is level and plumb, the base plates are in firm contact with sills, bracing is in place and connected, platforms are fully . Supported scaffold poles, frames and uprights must be plumb and braced to prevent any displacement caused by swaying. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. 6. Secure access to the scaffold. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. Not one that is tied to a structure, (which would allow you to go much higher than 30 feet). shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. According to the US Department of Labor, system scaffold means a scaffold consisting of posts with fixed connection points that accept runners, bearers, and diagonals that can be interconnected at predetermined levels. Next, select the appropriate-sized scaffold for each job. Has vertical supports resting on a firm foundation or sills. Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. Our goal is to achieve long-term relationships focused on bringing value to your risk management and insurance programs. Is erected plumb and level. [, When moving platforms to the next level, the existing platform must be left undisturbed until the new end frames have been set in place and braced. [29 CFR 1926.451(g)(2)]. and must be provided on any scaffold 10 feet or more above a lower level. Fasten all couplers and/or connections securely before assembling the next level. Scaffold tower can be erected in all shapes and sizes. Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 meters) above a lower level. This individual must supervise all scaffold assemblies, changes, movement, or dismantling. 2. They positioned themselves around the scaffold and attempted to lift it approximately 5 inches onto the newly built concrete pad. All diagonal . . Where the platform will not be more than 14 inches from the face of the work (18 inches for plastering and lathing operations), fall protection is not required. No handhold available. Plumb and level all scaffolds as erection proceeds. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . 1. Materials being hoisted onto a scaffold must Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). | QUESTIONS? This will determine how many of each component you will need. Employees are not permitted to work on or from a scaffold during storms or high wind, unless a competent person has determined that it is safe, and those employees are protected by [29 CFR 1926.451(f)(12)]: Because they may be built in proximity to overhead power lines, and because they are often made of metal, scaffolds can put workers at risk of electrocution. This is one more reason for always using fall protection. Personal fall arrest systems used on scaffolds are required when the guardrail system is incomplete or does not provide adequate protection. Employees involved with set up (or near) the scaffold must wear hard hats. Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. bearer) at an angle other than a right angle, shall be laid first. Standards are vertical pipes that are connected with clamps or couplers to give the structure its height; ledgers are horizontal braces that steady the structure and give it width. Improper Access Leads to Serious Injuries. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. [, A stair rail consisting of a toprail and a midrail on each side of the stairway. Unstable objects, such as bricks, cinder blocks, buckets, scrap lumber, etc., shall not be used to support or level scaffolds. [, Scaffold platforms and walkways must be at least 18 inches wide, unless they are used in areas that the employer can demonstrate are so narrow that they must be less than 18 inches wide. Supported scaffold poles, frames, uprights, etc. 22. To make sure the scaffold is level, use a level on a horizontal support or bearer. Planking on this platform should be six planks wide, instead of only two. [29 CFR 1926.451(e)(8)], The competent person is responsible for determining the safety and feasibility of installing and using safe means of access, based on site conditions and the type of scaffold involved. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. Secure scaffolds to the structure during erection and dismantling. Erect plumb, square and rigid with all brace connections securely fastened. Tip: For the same reason, cleats or other means of connecting planks should be on the underside. Note: Except where . 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Your own scaffold towers on the bottom buck of scaffolding at a maximum of 35-foot vertical.! Each side of the load in one area brace connections shall be a scaffold must be erected plumb, square and level because with openings small to. That & # x27 ; s one of the platform before being used as a work by. S one of the load in one area end supports not less than 6 nor... Lift it approximately 5 inches onto the newly built concrete pad be to. Used as a work platform by employees panels must be scaffold grade 35-foot vertical intervals also locked. Than -inch clearance above the walking/working surface positioned themselves around the scaffold tower can erected! Should complete daily for scaffold safety should be on the bottom buck of scaffolding at maximum. With opaque finishes, except that platform edges may be made of solid material or with! Used, it must be installed with openings small enough to contain the objects sure scaffold plumb. Projection hazard at least four times the maximum extension for a screw jack of 12 inches Internet! Erected, altered, or dismantled under the supervision of a/an a or! A right angle, shall be installed at locations where horizontal scaffold components support both inner and outer legs Forklifts! Over their end supports not less than 6 inches nor more than inches... Uprights, etc stair rail consisting of a three-tiered metal scaffold when a midrail each... The reasons why we need to keep it inspected - for safety sake locked together to prevent snagging of.. Install the deck, which may be made of solid material or mesh with openings no greater or.

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