If the base width is wider than three feet, the first tie will be a vertical distance of four times the base width and every 26 feet vertically thereafter. Make sure the scaffold is stable. Unsafe scaffolding has the potential to result in death or serious . Platforms can be made of wood, but most new scaffolding systems feature specially designed platforms that are made of wood but reinforced with steel ends to ensure solid connections with the transoms. And they can also order parts with their preferred material and size of the parts. Every scaffold must be erected by qualified technicians based on the information in the design drawings. 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. He fell to the ground, sustaining a fatal blow to his head. Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. You will also need to carefully consider the types of couplers you will need, as well as how many couplers will be necessary for the structure you want to build with the new scaffolding. [, Have rest platforms provided at a maximum of 35 foot vertical intervals. The hazards of type of scaffold being used. The jack-nut at the highest ground level should be set 7.5-15 cm (3-6 in.) [3] Lift the planks through the scaffold bars and into place. perfectly vertical) and braced to prevent swaying and displacement. Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. . If a mobile rolling scaffold a solid platform covering the entire area from which an employee may work. Guardrails May Have Saved Him, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Electrical Incidents: Lack of Ground-Fault Protection, Severe Storm and Flood Recovery Assistance, Scaffolding : Supported Scaffolds - Frame or Fabricated, In order to assure stability, supported scaffolds must be set on [, Footings must be capable of supporting the loaded scaffold without settling or displacement. He suffered multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. Such protection may be in the form of: Large or heavy materials stored on the scaffold platofrm must be located away from the edges of the work platform and secured, if necessary. Next, select the appropriate-sized scaffold for each job. The planking used must be "scaffold grade.". Has lockable wheels if it is a mobile rolling scaffold. This type of tubular construction equipment has been around for a very long time. If solid sawn wood is used, it must be scaffold grade. One common tagging system uses the following tags: Use scaffolds according to the manufacturers instructions. These are only a few basic physical structures of scaffold towers. Be sure scaffold stays plumb and level as erection progresses. 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. 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 [. The scaffold must also be designed to ensure that it can support the weight of both horizontal and lateral loads. Employees who perform work while on a scaffold must be trained by a qualified person to recognize the hazards associated with the type of scaffold being used, and to understand the procedures to control those hazards. Plumb and level all scaffolds as the erection proceeds. 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. [, Frames and panels must be connected by cross, horizontal, or diagonal braces, alone or in combination, which secure vertical members together laterally. A tube and coupler scaffold has a platform(s) supported by tubing, and is erected with coupling devices connecting uprights, braces, bearers and runners. Also they can be mobile or stationary. Proper access must be provided to access the work platform of the scaffold. The Scaffold cross braces should never be used as a means of access. Any surface or angle may be judged to be "true" through a combination of qualitative tests. Footing. Scaffold frames (i.e. Independent scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built next to. Stack up the planks, braces and bases on the bottom between the wheel wells, and stack the frames on top. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle. As they were lifting the scaffold, the top section partially separated from the adjoining section, toppled over, and contacted a power line. 1. Decide ahead of time which type of system you want to use so you have a better idea of the amount of scaffolding you will need. Install the deck, which may be an all aluminium platform or with wood deck or LeeLite planks. The work deck must be fully planked. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Scaffolding means a convenient platform for persons to work at height. Erects scaffolding and ladders for assembling structures above ground level. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. Scaffolding towers (also known as scaffold towers, tower scaffolding, rolling scaffold and sometimes rolling towers. Base Section - To ensure stability, set supported scaffolds on base plates, mud-sills or some other adequate firm foundation. Haul Scaffolding Safely. TRUE represents being SQUARE on both the LEVEL & PLUMB axis at the same time on all sides of the unit being installed. A 28-year old carpenter and a 31-year old laborer were electrocuted. 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. In some cases, you may choose a new. Clamps are joints that connect tubular pipes together; some couplers are designed for specific purposes, such as connecting standards and ledgers. [, Be positioned so that their bottom step is not more than 24 inches above the scaffold supporting level, [, Have rest platforms at maximum vertical intervals of 12 feet, [, Have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which shall have a minimum step width of 11 inches [, Have slip-resistant treads on all steps and landings. Toeboards must be installed not more than 1/4 inch above the platform and securely fastened. Tip: For the same reason, cleats or other means of connecting planks should be on the underside. 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. The face of the work (ex. Duty level of scaffold is based on the chart below. Aluminum and steel are the most commonly used materials around the world for scaffolding and tower scaffolds. They are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Except when used only as a walkway, the platform is the work area of the scaffold. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. The number one scaffold hazard is worker falls. Crossbracing is required on both front and back sides of each scaffold buck or frame. [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. [, Scaffolds over 125 feet (38.0m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. The safe use of a scaffold is the responsibility of all people involved with the scaffold. The scaffold design must include the following: Proper materials to construct the scaffold. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. (Figure 6) [, Hook-on and attachable ladders must be specifically designed for use with the type of scaffold on which they are used. [, Stairways installed between 40 degrees and 60 degrees from the horizontal. Runners must: Extend over two poles at minimum. Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. 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. the type of scaffold in question. [, Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection. Fall protection requirements for workers using scaffolds, such as guardrail systems or personal fall arrest systems, The type and amount of scaffold equipment needed to access all areas to be worked on, Proper storage and transporting of scaffolding components, materials and equipment, The manner in which workers will access the scaffold (e.g., via ladders, stair rail systems), Proper materials to construct the scaffold. [29 CFR 1926.451(g)(2)]. [, Uniform tread depth, within -inch, for each flight of stairs. Plumb and level all scaffolds as the erection proceeds. 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