Follow all state, local and federal codes, ordinance and regulations pertaining to scaffolding. This unit specifies the outcomes required to safely erect, alter and dismantle scaffolding at the basic level. The following procedures will cover all scaffolding erected, . The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Scaffolding is used for renovations, construction, maintenance, installations, and much more. 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. Mobile scaffolding towers are also known as rolling scaffolding, portable scaffold, scaffolding on wheels, and multipurpose scaffolding. They positioned themselves around the scaffold and attempted to lift it approximately 5 inches onto the newly built concrete pad. Specific requirements are described below. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user. He fell approximately 12 feet to a concrete dock. [29 CFR 1926.451(e)(9)(i)]. And frames that stick out past the side of the bed can be . Such a scaffold can be set up on either side of the building, and offers a great level of flexibility. [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. For example, if the base width is 5 feet, the first vertical tie will be (5 feet x 4) 20 feet from the ground. Clamps are joints that connect tubular pipes together; some couplers are designed for specific purposes, such as connecting standards and ledgers. For lathing and plastering, a gap of 18 inches is permitted. [, 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. The entire platform is attached to the fork. They can also choose if they want it mobile or stationary. Each section of the framework measured 6'5" high. [29 CFR 1926.451(g)(2)]. [, Ends of stair rails and handrails constructed so that they do not constitute a projection hazard. [, Scaffold components made of dissimilar metals must not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component below OSHA standards. (True or False) _____ 2. [29 CFR 1926.451(f)(5)]. Scaffolding. 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. TRUE represents being SQUARE on both the LEVEL & PLUMB axis at the same time on all sides of the unit being installed. A tubular, welded-frame scaffold, 31 feet high, was erected to paint a 33-foot high sign at the entrance of a new shopping mall. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . 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. Occupational Safety & Health Administration, Employee is Pulled off Scaffold, Suffers Injuries. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. The jack-nut at the highest ground level should be set 7.5-15 cm (3-6 in.) The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. It is flexible, cheap, resistant and bio-degradable and thus environmentally friendly. Call us today 1-888-991-2929! Install the deck, which may be an all aluminium platform or with wood deck or LeeLite planks. 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 . 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 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 . Float Scaffold. 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. Haul Scaffolding Safely. The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. You can measure if something is plumb by using a plumb bob or a spirit or laser level. [29 CFR 1926.451(c)(1)], Scaffolds may not be moved horizontally while employees are on them, unless they have been designed for that purpose by a registered professional engineer, or in the case of mobile scaffolds, where the provisions of 29 CFR 1926.452(w) are followed. By far, the most forgotten term of a door installation. [, 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. Has lockable wheels if it is a mobile rolling scaffold. Verifies trueness of structure with plumb bob and carpenter's level. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). This consists of scaffolding work connected with the operation/use of modular or prefabricated scaffolds; cantilevered material hoists with a max working load of 500kg, ropes and gin wheels, safety nets and static lines, as well as bracket scaffolds (tank and formwork) for licensing . Supported scaffold poles, frames, uprights, etc. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Crawling Board. 5. Personal Fall Arrest System. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. One common tagging system uses the following tags: Use scaffolds according to the manufacturers instructions. [, Be specifically designed and constructed for use as ladder rungs. An access ladder or equivalent safe access must be provided. Warped. 1. When the employee tried to set the third level frame into the pins of the second level, the frame he was trying to position flipped to one side. (For mobile scaffolds, the maximum height of the screw jack is 12 inches.). [, Scaffolds and scaffold components must be inspected for visible defects before each shift by a competent person, and after each occurrence that could affect a scaffold's integrity (such as being struck by a crane). Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. Scaffolds must be fully planked or decked whenever possible. 3. The Scaffold cross braces should never be used as a means of access. They may, however, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes. They are frequently used in one or two tiers by residential contractors, painters, etc., but their modular frames can also be stacked several stories high for use on large-scale construction jobs. Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. Fasten the levelling jack to the sills with either nails or screws. Is erected plumb and level. (Figure 4) [, Scaffolds shall be altered only under the supervision and direction of a competent person. 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. e. 1. The momentum of the frame thrust the employee backward off the second level. 1926.454 (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. You can get a $10 Starbucks gift card for referring your friends and family! 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. Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). When dismantling the scaffold, check to ensure that the scaffold has not been structurally altered in a way that would make it unsafe. Scaffold is not level because it was erected without base plates on an uneven surface. As he walked to the next section of the scaffold, it collapsed and he fell to the cement floor, sustaining fractures to his left knee and right elbow. Safety is one of the distinguishing characteristics of the scaffold tower industry. [, Stairways installed between 40 degrees and 60 degrees from the horizontal. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. (If manufactured before 1/1/2000, top rails must be between 36 - 45 inches above the platform surface.) Not tied. The amount of time needed to erect and dismantle the scaffold. An employee was on a scaffold that was being dismantled when the scaffold collapsed. Install the deck, which may be an all aluminium platform or with wood deck or scaffold planks. Changes at the worksite present a hazard for which an employee has not previously been trained. [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. 3. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 foot rule should always be applied. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. [, 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. [. Therefore, employers are required to provide safe scaffold access. Always use . 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. All brace connections shall be . No handhold available. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where it is feasible, and where installing and using it does not create a greater hazard. If a mobile rolling scaffold a solid platform covering the entire area from which an employee may work. They can decide on which material to use and also the desired dimensions. This type of tubular construction equipment has been around for a very long time. To ensure the scaffold is "square", use a tape measure and measure the distance between opposite corners. [3] Lift the planks through the scaffold bars and into place. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. 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. Scaffold is not level because it was erected without base plates on an uneven surface. Make sure that a competent person inspects the scaffold before each work shift. Where a platform changes direction (ex. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. The technical storage or access that is used exclusively for anonymous statistical purposes. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . We use cookies to optimize our website and our service. Consider such platforms for added stability and safety. [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. . [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. A toeboard shall be erected along the edge of platforms more than 10 feet 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 wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the . To control the risk of a scaffold falling or collapsing, employers must assure that scaffolds are built within OSHA standards relating to strength and structural integrity. . The scaffold was not secured to wooden footing supports, nor was it tied to the building. Click here to learn more about Scaffolding Regulations. A specific access, such as a mounted ladder, must be used. or more per square foot. [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. [, Have rest platforms provided at a maximum of 35-foot vertical intervals. . [, Nothing that could cause a slip, trip or fall (i.e. the side of a building) basically serves as the fall protection system. 22.B.12 Scaffolds shall be plumb and level unless engineered and designed to contour as the structure does. If uplift could cause the components to separate, locking pins must be used and the components secured. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Supported scaffold poles, frames, uprights, etc. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. [, Sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling. Is secured to prevent lateral movement. Wooden platforms (i.e. [29 CFR 1926.451(g)(2)], The employer must designate a competent person, who would be responsible for determining the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. [, Frames and panels must be locked together to prevent uplift, where uplift can occur. [, A landing platform at least 18 inches wide by 18 inches long at each level. The forklift is not moved horizontally while the platform is occupied. 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. Supported scaffold poles, legs . Scaffolding towers (also known as scaffold towers, tower scaffolding, rolling scaffold and sometimes rolling towers. (Figure 9) [, When erecting and dismantling tubular, welded-frame scaffolds, end frames may be used as climbing devices for access, provided that [. Training shall include [. must be plumb and braced to prevent swaying and displacement. For example, if wrapped with mesh, will the scaffold support expected wind loads? One concerns the employees on the scaffold itself, and the other concerns employees who may work in or enter the area below the scaffold. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. 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. You will need many of each component for larger structures. Catenary Scoffold. Secure scaffolds to the structure during erection and dismantling. [, Have uniform spacing between rungs of a maximum 16 inches. There were no guardrails at the working level. 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. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. 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. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. 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. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. As they were lifting the scaffold, the top section partially separated from the adjoining section, toppled over, and contacted a power line. [. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). Authorized Person [, 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. Canopy structures made of solid materials. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. Toeboards must be installed not more than 1/4 inch above the platform and securely fastened. [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. missing parts due to area obstructions). Plumb and level the scaffold as it is being erected. Ladder Jack Scaffold. Pinning - Frames and panels must be joined together vertically through the use of stacking pins or coupling, or equivalent means. 6. And also, there are lots of sites that sell scaffolding spare parts. Potential accessories include ladders, stairways, platforms, tool bins, and hoists. Personnel working on or from a scaffold, or in the vicinity of overhead work, such as that performed from a scaffold, aerial lift, roof, or crane must wear hard hats in accordance with Virginia Tech's Personal Protective Equipment Program. How to use a plumb bob. Be sure scaffold stays plumb and level as erection progresses. [, Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. A checklist of items a competent person should complete daily for scaffold safety. A scaffold must be erected "plumb, square, and level," because: Answer: 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. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. 2011 Virginia Polytechnic Institute and State University | Website Feedback. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. Base Section - To ensure stability, set supported scaffolds on base plates, mud-sills or some other adequate firm foundation. It is strong, dependable, and is relatively low in cost. The employer must provide suitable access to and between scaffolds, such as portable ladders, hook-on ladders, attachable ladders and stairway-type ladders. 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). A scaffold can be overloaded by [. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! Support scaffold footings must be level and capable of supporting the loaded scaffold. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. The main components are scaffolding tubes, scaffold clamps, and base plates. Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 meters) above a lower level. Scaffolding means a convenient platform for persons to work at height. [, Stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. bucks) must be joined together vertically by coupling or stacking pins (or equivalent means). Supported scaffold poles, legs . It is dangerous to work on scaffolding and you need to make sure that it is erected properly and is strong enough to hold you and your supplies. 2. PLUMB/LEVEL/SQUARE. All brace connections shall be made secure. A 28-year old carpenter and a 31-year old laborer were electrocuted. Duty level of scaffold is based on the chart below. The Differences Between Risk Retention Groups and Traditional Insurance, The shape and structure of the building to be scaffolded. 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. [, OSHA standards specifically forbid climbing cross-braces as a means of access. Scaffolding, 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. Avoid propping the scaffolding frames up on the side of the bed. [, Have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches. Shapes materials to prescribed measurements, using saws, chisels, and planes. 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. Point loading, or concentrating too much of the load in one area. Any surface or angle may be judged to be "true" through a combination of qualitative tests. Make sure the scaffold is stable. The face of the work (ex. Toeboards must be installed on work platforms where materials or tools will be in use. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. Screw jacks must be used to level scaffolding on uneven surfaces. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. (l) Use a tag line when hoisting materials onto a scaffold. The competent person should use this checklist for daily inspections of the scaffold. Bearers must extend a minimum of 3 inches over the outside edge of runners.

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