[, When horizontal lifelines are used, they are to be secured to two or more structural members of the scaffold. [, Nothing that could cause a slip, trip or fall (i.e. Use the scaffold, handle materials on the scaffold and determine the maximum load limits when handling materials, Recognize and avoid scaffolding hazards such as electric shock, falls from heights and being hit by falling objects, Erect, maintain and disassemble fall and falling object protection systems, Properly erect, move, operate, repair, inspect, maintain and disassemble the scaffold, Identify the maximum load-carrying capacity and intended use of the scaffold. This would be in reference to stand alone scaffold towers. Stability and durability are the key components for the scaffold towers to be safe. Barricades to keep personnel out of a hazardous area. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb (i.e. 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 . Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Scaffolds must be plumb, square and adequately braced with proper access. System Scaffolding. Reaching 5 foot high all the way up to 30 feet tall. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. B. (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! [, On scaffolds where platforms are overlapped to create a long platform, the overlap may only occur over supports, and may not be less than 12 inches, unless the platforms are restrained (i.e., nailed together) to prevent movement. Toeboards must be capable of withstanding at least 50 pounds applied in a downward or outward direction. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. 22. Integral (built-in) scaffold access frames must: Stair towers (scaffold stairway/towers) must have (Figure 7): Direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. The number one scaffold hazard is worker falls. [, 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. Install the deck, which may be an all aluminium platform or with wood deck or scaffold planks. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. Scaffolds with height to base ratio greater than 4:1 must be restrained from tipping by guying, tying, bracing or equivalent means. They can also choose if they want it mobile or stationary. Place the planks. Installed protective coverings to prevent accidental contact with the lines. [. [3] Lift the planks through the scaffold bars and into place. Platform/decking planks may be made of solid sawn wood, manufactured wood, manufactured steel, or manufactured aluminum. Secure scaffolds to the structure during erection and dismantling. These scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces with irregular dimensions and/or contours. Keep the scaffold level, plumb, and square. For example, if the base width is 5 feet, the first vertical tie will be (5 feet x 4) 20 feet from the ground. Scaffolding means a convenient platform for persons to work at height. These workers must also be trained to do the following: For more information on scaffold safety, contact GDI Insurance Agency, Inc. and visit OSHAs Safety and Health Topics page at www.osha.gov/SLTC/scaffolding/. Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. OSHA 1926.454 (c) states: When an employer has reason to believe . (For mobile scaffolds, the maximum height of the screw jack is 12 inches.). The following procedures will cover all scaffolding erected, . Something that is "plumb" runs perpendicular to the horizonmeaning that when it intersects the horizon, it makes a right (90 degree) angle. [. 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 . All scaffolding products available at scaffoldframe.com meets OSHA and ANSI standards, and have a 5 year warranty*. There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood . He suffered multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. 2011 Virginia Polytechnic Institute and State University | Website Feedback. [, 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. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. B.13 Scaffolds (other than suspended scaffolds) shall bear on . Where the frame of the scaffold will be used for access, the manufacturer must specify in writing that it was designed for such purposes. [, Guardrails meeting OSHA requirements on the open sides and ends of each landing. Check out our special shipping rates! Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. We will deliver to you the highest quality property and casualty insurance programs and strategic planning consultation services in a manner that is most suitable to achieving your business goals. All diagonal . To accomplish this, the scaffold design must incorporate a realistic The forklift is not moved horizontally while the platform is occupied. The proper use of the scaffold, and the proper handling of materials on the scaffold. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. [, Portable, hook-on, and attachable ladders must be positioned so as not to tip the scaffold. 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. Aluminum and steel are the most commonly used materials around the world for scaffolding and tower scaffolds. Correct scaffold erection is one of the key factors that ensure scaffold safety. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. In general, a level is the easiest way to achieve the desired right angles. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. the diagonal brace to keep the scaffolding square. 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. Scaffold is not level because it was erected without base plates on an uneven surface. Support scaffold footings must be level and capable of supporting the loaded scaffold. Medium-duty scaffolds can support 50 pounds per square foot. Learn how your comment data is processed. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. . 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. If using wooden planks, they must extend beyond the supporting points Haul Scaffolding Safely. This training must be provided by a qualified person who understands the hazards associated with the type of scaffold being used and who knows the procedures to control or minimize those hazards. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. Fasten the levelling jack to the sills with either nails or screws. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. The space between planks cannot exceed 1 inch, except where necessary for obstructions. [, Be seated with side-brackets parallel to the frames, and end-brackets at 90 degrees to the frames. 2. Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. [, In addition to meeting the requirements of, When vertical lifelines are used, they must be fastened to a fixed safe point of anchorage, independent of the scaffold, and be protected from sharp edges and abrasion. [, 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. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. (Your Answer) 3. The objective is to reduce the tripping hazard by having the ends of the top layer of planks form a straight line, rather than a saw-toothed edge, which increases tripping hazards. To check a scaffold for being plumb, use a level on two opposite uprights. A scaffold can be overloaded by [. Midrails must be installed at a height approximately midway between the toprail and the platform surface. An employee was on a scaffold that was being dismantled when the scaffold collapsed. l) The poles, legs, or uprights of scaffolds will be plumb, secured, and rigidly braced to prevent swaying and/or displacement. 4. . In Asia, bamboo is used as a construction material. It is not all-inclusive and should be used as a starting point for the competent person to develop a checklist specific to the type of scaffold and jobsite conditions encountered. Move the scaffold into your desired position, and make sure it is level and secure. [, Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to the point that permits safe installation and use. 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 . Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. Platforms and walkways, in general, must be at least 18 inches wide. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. [. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. Always use . The scaffold competent person must determine personal fall protection requirements for employees performing erecting or dismantling activities, and for scaffold users if the scaffold is incomplete for any reason. Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. Employees must not work on platforms covered with snow, ice or other slippery material. . Plumb and level all scaffolds as the erection proceeds. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. Find out more here or call us at 209-634-2929! [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. Ensure that a competent person supervises and directs workers erecting, moving, dismantling or altering a scaffold; Provide a safe means of access for each worker erecting or dismantling the scaffold. 1. Do not force frames or braces to fitlevel the scaffold until proper fit can easily be made. Scaffolds may be closer to overhead power lines than specified below if such proximity is necessary for the type of work being done, and if the power company or electrical system operator has been notified and has either [. Hook-on and attachable ladder rungs must: Be positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level. [, Employees performing overhand bricklaying operations from a supported scaffold must be protected from falling from all open sides and ends of the scaffold, except at the side next to the wall being laid. The working surface was solidly planked. 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. Is secured to prevent lateral movement. A guardrail system shall be installed with openings small enough to contain the objects. 6. Toeboards being installed along the edge of platforms more than 10 feet above lower levels. 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 some cases, you may choose a new. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds as well as the specialty scaffolds described in the Supported Scaffolds module. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in the Supported Scaffolds module. Training shall include [. e. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. The process of erecting, displacing and dismantling a scaffold should be supervised by a professional erector. Guardrails must be installed on scaffolding over 10'. Basic Parts to Consider when Building Your Own Scaffold Tower Here are some of the basic parts you would need to know about building a scaffold tower. 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. Wooden platforms (i.e. 3. Note: Except where . To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet vertically. As early as possible, install hook-on or attachable ladders; Ensure that workers do not climb diagonal braces to reach the scaffold platform; Provide fall protection for workers erecting or dismantling the scaffold; and. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. 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. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. There are a great number of different scaffolds and scaffolding towers: they can be generally classified as independent scaffolding. The technical storage or access that is used exclusively for anonymous statistical purposes. Has a platform that is at least 500mm wide. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. We use cookies to optimize our website and our service. [, 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. 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). Before beginning dismantling procedures, reconstruct and/or stabilize the scaffold as necessary. Each section of the framework measured 6'5" high. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. Duty level of scaffold is based on the chart below. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. To be specific, a "true" surface is as "plumb" or as "level" as the job requires (which, in most cases, is a perfect level of both or either). Also they can be mobile or stationary. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). Supported scaffold poles, frames, uprights, etc. For example, if wrapped with mesh, will the scaffold support expected wind loads? The ladder must extend 1 m (3 ft.) above the landing. Pumpjack scaffolds are for light duty only. Guys, ties and braces shall be installed where horizontal members support both inner and outer legs. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. A tube and coupler scaffold has a platform(s) supported by tubing, and is erected with coupling devices connecting uprights, braces, bearers and runners. 5. Insufficient length. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. 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