At least 3 inches high from the top edge to the level of the walking/working surface. Erect plumb, square and rigid with all brace connections securely fastened. Fasten all couplers and/or connections securely before assembling the next level. Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). 6. Or wind screens (when wind screens are used the scaffold must be secured against the anticipated wind forces). The work deck must be fully planked. [, If a ramp or walkway has a slope of more than 1:8, it must have cleats securely fastened to the planks not more than 14 inches apart, to provide footing. Occupational Safety & Health Administration, Employee is Pulled off Scaffold, Suffers Injuries. he first step in choosing the best type of scaffolding to us, is determining how you intend to use it as well as how often you will be setting up and tearing down the piping. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. The guardrail system shall be installed along all open sides and ends of the platform before being used as a work platform by employees. Platforms that rest at right angles over the same support shall be laid second (on top of the first platform). They may be made of solid material or mesh with openings no greater than 1 inch. Plumb and level all scaffolds as the erection proceeds. He fell to the ground, sustaining a fatal blow to his head. In general, a level is the easiest way to achieve the desired right angles. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. Connect the first cross- brace to the frame. [, Guardrails must be surfaced to prevent punctures or lacerations to employees and to prevent snagging of clothing, which may cause employees to lose their balance. It's best to have everything as low as possible so parts don't get blown or bounced out. Most screw jacks will have a built-in stop so that the maximum height cannot be exceeded. 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. Others, such as swivel couplers, can be used for a variety of purposes; they can be positioned to allow various angles and crosses among the types of piping. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. The focus of this position will be to construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using carpenter's hand tools and power tools, conforming to . These scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces with irregular dimensions and/or contours. must be plumb and braced to prevent swaying and displacement. (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . [, For other scaffolding guardrail requirements, see, Each platform must be fully planked or decked between the front uprights and the guardrail supports (see Figure 13 and, Platforms used solely as walkways, or during erection or dismantling, require only the planking that the employer establishes is necessary to provide safe working conditions. The two measurements should be equal. Before starting any scaffold project, the employer should conduct a hazard assessment to ensure the safety of workers. Tube and coupler scaffold design must comply with 29 CFR 1926.451.452. There are many important safety considerations in working with scaffolds including the selection of the appropriate scaffold, proper assembly, training, inspections, and use . Move the scaffold into your desired position, and make sure it is level and secure. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. Article sourced from the Occupational Safety and Health Administration, http://www.OSHA.gov. All diagonal . The other five workers were hospitalized with electrical burns. (. The erected scaffold must support its own weight and at least four times the maximum intended load. 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. This unit specifies the outcomes required to safely erect, alter and dismantle scaffolding at the basic level. [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. e. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. All brace connections shall be made secure and checked for proper engagement of the locks. [, Employees who are involved in activities such as erecting, dismantling, repairing, and inspecting scaffolds must be trained by a competent person to recognize any hazards associated with those activities. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a If you need new scaffolding for larger jobs, you will need to determine how high and wide you are likely to build the scaffolding. [, Employers are required to provide safe access for employees erecting or dismantling supported scaffolds where it is feasible, and where it does not create a greater hazard. [, When midrails are used, they must be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. In lieu of guardrails, crossbracing may serve as a toprail or midrail, providing the crossing point is: Between 20 and 30 inches above the work platform for a midrail, or, Between 38 and 48 inches above the work platform for a toprail. Vertical means up and down. Personal Fall Arrest System. [29 CFR 1926.451(c)(3)]. [, Scaffold components manufactured by different manufacturers must not be intermixed, unless they fit together without being forced and the scaffold's structural integrity is maintained. Specific requirements are described below. Scaffolds with a height-to-base width ratio of more than four to one shall be restrained from tipping over by guying, tying, bracing, or equivalent means. (k) The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Ladders that are a part of the scaffolding system, such as hook-on and attachable ladders, shall be positioned so that the bottom rung is not more than 24 inches above the supporting level. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. Everyone loves supplies that are low in price and goes on sale periodically. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. Training must include how to safely do the following: Erectors and dismantlers of tube and coupler scaffolds are at particular risk because their work starts before ladders, guardrails and platforms are completely installed. Metal pumpjack scaffolds cannot be more than 13.7 m in height; and must be braced every 4.6 m. Pumpjack scaffolds with supports made of wood must not be more than 7.3 m in height and must be braced every 3 m. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. [, Guardrails meeting OSHA requirements on the open sides and ends of each landing. Scaffolding means a convenient platform for persons to work at height. Platform/decking planks may be made of solid sawn wood, manufactured wood, manufactured steel, or manufactured aluminum. 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 . is allowed to accumulate on the platform. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. NOTE: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in Supported Scaffolds. Independent scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built next to. [, Slip-resistant surfaces on treads and landings. We pride ourselves on exceeding our clients expectations in every interaction to make sure that our clients know how much we value and appreciate their business. Scaffolding shall be designed by a qualified and competent . Stability and durability are the key components for the scaffold towers to be safe. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. Insufficient length. Fasten all couplers and/or connections . [, Fall protection consists of either personal fall arrest systems or guardrail systems meeting OSHA requirements. In certain industries such as oil refinery, aviation, gas and chemical manufacture it is necessary to use glass fiber structures as these will not spark or corrode in situations where gasoline, solvents, electricity and so forth are present. Be sure scaffold stays plumb and level as erection progresses. Scaffold frames (i.e. Keep the scaffold level, plumb, and square. Some people would like their own customized scaffold towers. The legs, poles, frames, and uprights must bear on base plates and mud sills. Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. [29 CFR 1926.451(e)(9)(i)]. [, Be seated with side-brackets parallel to the frames, and end-brackets at 90 degrees to the frames. Check the level again and plumb if necessary. Supported scaffold poles, legs . Employees must not work on platforms covered with snow, ice or other slippery material. Not tied. Always use . Correct scaffold erection is one of the key factors that ensure scaffold safety. A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle. Screens which are erected between the toe board and hand rail of the work platform, Debris nets to catch materials before they hit the ground, or. Additional protection from falling debris and other small objects must be provided in areas where personnel will be in the vicinity of scaffolds. scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . (j) Scaffold planks must extend over their end supports not less than 6 inches nor more than 18 inches. bucks) must be joined together vertically by coupling or stacking pins (or equivalent means). To accomplish this, the scaffold design must incorporate a realistic assessment of maximum intended loads on the scaffold at all stages of erection and loading. The picture above describes TRUE. The distance between beare r s and runners shall not exceed manufacturer's re c o m-m e n d a t i o n s . 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. Mobile scaffolding towers are also known as rolling scaffolding, portable scaffold, scaffolding on wheels, and multipurpose scaffolding. Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. A scaffold must be erected "plumb, square, and level," because: 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. Scaffolds need to be erected plumb, level, squared and braced to . . Where the frame of the scaffold will be used for access, the manufacturer must specify in writing that it was designed for such purposes. And frames that stick out past the side of the bed can be . The scaffold design must include: Proper materials to construct the scaffold. Requirements to prevent falls that apply only to these workers are addressed separately below. Scaffolding. 22. (Your Answer) 3. Once erected, provide toeboards on all railed sides to prevent falling object hazards. the type of scaffold in question. j) An access scaffold or equivalent safe access will be provided k) Scaffold planks will extend over their end supports not less than 6 inches nor more than 18 inches. Avoid propping the scaffolding frames up on the side of the bed. 3. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. Point loading, or concentrating too much of the load in one area. The scaffold should be plumb, level and square. . [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! Barricades to keep personnel out of a hazardous area. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. As one of the fastest growing agencies in California, GDI Insurance Agency, Inc. is able to provide its clients with the latest and greatest of what the insurance industry has to offer and much, much more. Check out our special shipping rates! Legs, posts, frames, poles, and uprights must be on base plates and mud sills, or a firm foundation and, be plum b and braced. This risk can be removed through proper clearance and maintenance. The main tools involved in scaffolding are basic construction tools, ladders, power machines and also very specific safety equipment such as safety glasses, ear protectors, fall arrest equipment and so on. Must be designed by a registered professional engineer point loading, or manufactured aluminum fasten all couplers connections! 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