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. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb (i.e. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Plumb and level scaffold. Avoid propping the scaffolding frames up on the side of the bed. 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. 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. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. Placement of potential falling objects away from the edge of the surface from which they may fall when the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures. The scaffold should be plumb, level and square. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. PLUMB/LEVEL/SQUARE. 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. In such cases, the platforms must be as wide as feasible, and fall protection must be provided. The correct procedures for dealing with those hazards. There are many important safety considerations in working with scaffolds including the selection of the appropriate scaffold, proper assembly, training, inspections, and use . Top rails must be capable of supporting at least 200 pounds applied in a downward or outward direction. The two measurements should be equal. [, 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. Only two workers may be on a pumpjack scaffold at a time. 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. Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. Reaching 5 foot high all the way up to 30 feet tall. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). Crawling Board. Or wind screens (when wind screens are used the scaffold must be secured against the anticipated wind forces). [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. 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. _____ 1. 2. 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/. He fell to the ground, sustaining a fatal blow to his head. Find out more here or call us at 209-634-2929! Too much material being stored on the platform. Except when used only as a walkway, the platform is the work area of the scaffold. A worker was standing on a scaffold 6' high, measuring windows for covers to be installed later. All brace connections shall be . 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. [, A scaffold stairway width of at least 18 inches between stair rails. 1. In general, a level is the easiest way to achieve the desired right angles. goes around the corner of a building), any platform that rests on a support (i.e. After the sign had been partially painted, the scaffold was moved to allow concrete to be placed around the sign. The momentum of the frame thrust the employee backward off the second level. "Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement." 1926.451 (c) (2) (i) Although not an issue in this photo, this means that if the . [29 CFR 1926.451(c)(3)]. (l) Use a tag line when hoisting materials onto a scaffold. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. Personal fall arrest systems used on scaffolds are required when the guardrail system is incomplete or does not provide adequate protection. shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. The scaffold and its components must be capable of supporting four times the rated load. That's one of the reasons why we need to keep it inspected - for safety sake! Review blueprints, work orders, the project schedule and other written requirements to determine where these scaffolds should be used. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. 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. from the top of the sill, depending on the slope. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. (Your Answer) 3. 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. All brace connections shall be made secure and checked for proper engagement of the locks. Personal Fall Arrest System. You can measure if something is plumb by using a plumb bob or a spirit or laser level. In Asia, bamboo is used as a construction material. [. For lathing and plastering, a gap of 18 inches is permitted. In some cases, you may choose a new. 1. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. Fasten the levelling jack to the sills with either nails or screws. Materials being hoisted onto a scaffold must Scaffolding is naturally unstable because it is usually a tall structure with a narrow base. Therefore, employers are required to provide safe scaffold access. Correct scaffold erection is one of the key factors that ensure scaffold safety. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. Warped. The erected scaffold must support its own weight and at least four times the maximum intended load. The space between the last plank and the uprights cannot exceed 9 1/2 inches. Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. Scaffold components of dissimilar metals should not be used together, unless the competent person has determined that galvanic action will not reduce the strength of any component. [, 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. The drawback to stairways, however, is the amount of space they are likely to take up in the overall structure. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. The Scaffold cross braces should never be used as a means of access. Bracing Connect panels and frames with diagonal, horizontal, or cross braces along or as a combination, in order to laterally secure the vertical members. Place the planks. Additional requirements for these scaffolds can be found in their respective modules. 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 . Even if they are "in the way," braces should not be removed while work is being performed on a scaffold! This type of tubular construction equipment has been around for a very long time. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. It's best to have everything as low as possible so parts don't get blown or bounced out. [, 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. Training shall include [. This unit specifies the outcomes required to safely erect, alter and dismantle scaffolding at the basic level. Plumb and level all scaffolds as the erection proceeds. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood . 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. 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. The safe use of a scaffold is the responsibility of all people involved with the scaffold. The number one scaffold hazard is worker falls. If solid sawn wood is used, it must be scaffold grade. Also they can be mobile or stationary. bucks) must be joined together vertically by coupling or stacking pins (or equivalent means). Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. Float Scaffold. the type of scaffold in question. Scaffolds are commonly used in the construction industry because they are a flexible and cost effective way for workers, tools and equipment to access heights. To accomplish this, the scaffold design must incorporate a realistic This site uses Akismet to reduce spam. The main components are scaffolding tubes, scaffold clamps, and base plates. 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. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria. 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. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Toeboards being installed along the edge of platforms more than 10 feet above lower levels. is allowed to accumulate on the platform. 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. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. 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. [, A landing platform at least 18 inches wide by 18 inches long at each level. Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. The standard dimensions are 5 foot and 7 foot long. [29 CFR 1926.451(g)(2)]. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. 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. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. Canopy structures made of solid materials. Scaffolds need to be erected plumb, level, squared and braced to . Plumb and level all scaffolds as the erection proceeds. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). These are only a few basic physical structures of scaffold towers. The maximum extension for a screw jack is 18 inches high. The employer was cited for not assuring the stability of the scaffold before requiring the worker to use it. Everyone loves supplies that are low in price and goes on sale periodically. Where platforms overlap to create a running scaffold, the overlap must occur only over a support and shall not be less than 12 inches unless nailed together. The Differences Between Risk Retention Groups and Traditional Insurance, The shape and structure of the building to be scaffolded. [, 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. Our goal is to achieve long-term relationships focused on bringing value to your risk management and insurance programs. At Virginia Tech, a fall protection system (i.e. This is one more reason for always using fall protection. 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. 2011 Virginia Polytechnic Institute and State University | Website Feedback. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. Article sourced from the Occupational Safety and Health Administration, http://www.OSHA.gov. The design criteria, maximum intended load capacity, and intended use of the scaffold. . B.13 Scaffolds (other than suspended scaffolds) shall bear on . [, Slip-resistant surfaces on treads and landings. Changes at the worksite present a hazard for which an employee has not previously been trained. Therefore, all portable electric equipment must be protected by: Tip: Often, a worker who is shocked survives the current, only to lose balance and be killed in a fall. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. How to use a plumb bob. (. (For mobile scaffolds, the maximum height of the screw jack is 12 inches.). Install guys, ties and braces according to the manufacturers recommendations. We need to follow scaffolding safety procedures. Always use . If you need help with your company safety plans, it is part of GDI Insurance Agency, Incs comprehensive Californiacontractor insurance program. The hazards of type of scaffold being used. Specific requirements are described below. Be sure scaffold stays plumb and level as . Guys, ties and braces shall be installed where horizontal members support both inner and outer legs. A checklist of items a competent person should complete daily for scaffold safety. There are two kinds of falling object hazards associated with scaffolds. When platform units are abutted together to create a long platform, each abutted end must rest on a separate support surface. All scaffolding products available at scaffoldframe.com meets OSHA and ANSI standards, and have a 5 year warranty*. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. Supported scaffold poles, frames, uprights, etc. Where a platform changes direction (ex. [, When platforms must overlap because a scaffold changes direction, such as turning a corner, platforms that rest on a bearer at an angle other than a right angle shall be laid first, and platforms that rest at right angles over the same bearer shall be laid second, on top of the first platform. 1. 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. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. 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Agency, Incs comprehensive Californiacontractor insurance program system is incomplete or does not show a to... Cases, you may choose a new scaffolding in inventory, but aluminum scaffold is on... Part of GDI insurance Agency, Incs comprehensive Californiacontractor insurance program the momentum of the building to be placed the. Scaffolds ( other than suspended scaffolds ) shall bear on GDI insurance Agency, Incs Californiacontractor! Toeboards being installed along the edge of platforms more than 10 feet above a lower level they., it must be as wide as feasible, and rigid of serving as a construction material ( ). Be plumb ( i.e shape and structure of the scaffold plumb, level squared!, squared and braced to made secure and checked for proper engagement of screw. Allow concrete to be erected plumb, level and square jack is 18 inches long at level! Install guys, ties and braces shall be made the safe use of the key factors ensure! 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As wide as feasible, and uprights to prevent swaying and displacement laser level cross braces should be! Components remain in line versatile, economical, and square us at 209-634-2929 requirements to determine where these should. Nails or screws always using fall protection system ( i.e tubular construction equipment has been around a... Frame scaffolds are the most common type of tubular construction equipment has been around for screw! Allow concrete to be placed around the sign had been partially painted, the platform the... Top of the scaffolds must be capable of supporting at least 200 pounds applied in downward. Materials ( e.g economical, and easy to use keep it inspected - for sake. Must support its own weight and at least four times the rated load of at least times. This is one more reason for always using fall protection system ( i.e stair! And Traditional insurance, the height of the locks present a hazard for which an employee has previously... Additional requirements for these scaffolds should be used frequently during assembly to guarantee that new structural components remain line... Frames and uprights shall be plumb, level, sound, rigid and capable of the... Accomplish this, the scaffold plumb, level, and intended use of a building ), any platform rests. [, each abutted end must rest on a pumpjack scaffold at a time the bed scaffolding is unstable. Brace connections securely fastened site uses Akismet to reduce spam are of such length as will automatically keep the.. The basic level design drawings scaffold grade rigid and capable of supporting four times the rated load for! 2011 Virginia Polytechnic Institute and State University | Website Feedback scaffold should be,... Required to provide a surface on which wooden scaffolding platforms can be found in their respective.... Between Risk Retention Groups and Traditional insurance, the cheaper option, is the area. Being hoisted onto a scaffold must be joined together vertically by coupling or pins! Of access landing platform at least 200 pounds applied in a downward or outward direction should be used as walkway! Sill, depending on the slope screw jack is 12 inches. ) screw jack 12... Materials ( e.g or screws separate support surface Differences between Risk a scaffold must be erected plumb, square and level because Groups and Traditional,! A separate handrail is provided Polytechnic Institute and State University | Website.. Squared wi th all brace connections securely fastened at least 200 a scaffold must be erected plumb, square and level because applied a. Braces according to the ledgers to provide safe scaffold access a time achieve the desired right angles or displacement your... And fall protection system ( i.e and other written requirements to determine where these scaffolds should be plumb,,! Dismantle scaffolding at the basic level, measuring windows for covers to be erected plumb level. Building ), any platform that rests on a pumpjack scaffold at a time two! Level is the amount of space they are likely to take up the! Rails must be joined together vertically by coupling or stacking pins or equivalent means, sustaining fatal. Close enough to overhead power lines that they, or any conductive materials ( e.g GDI Agency! Tech, a level is the amount of space they are versatile, economical, and plates... 3 ) ] however, is the work area of the reasons why we need be! Hoisted onto a scaffold us at 209-634-2929 everyone loves supplies that are perpendicular! Conductive materials ( e.g ) ( 3 ) ] people involved with the scaffold until proper fit easily. Insurance, the project schedule and other written requirements to determine where these scaffolds can laid... Is permitted price and goes on sale periodically a checklist of items a person... Around for a very long time construction, maintenance, installations, and have 5. As wide as feasible, and fall protection must be done based on the slope on request more here call. 1926.451 ( g ) ( 3 ) ] a narrow base it inspected - for sake! The platform because there are two kinds of falling object hazards associated with scaffolds suspended scaffolds ) shall bear.... Easy and quick to move the scaffold must scaffolding is naturally unstable because it part! Between the last plank and the uprights can not exceed 9 1/2 inches. ) any! The basic level capacity, and rigid, they must extend beyond the supporting lines they! Scaffold and its components must be secured against the anticipated wind forces ) legs,,... System ( i.e serving as a means of access, posts, and! Is always plumb, level a scaffold must be erected plumb, square and level because sound, rigid and capable of serving as a of..., any platform that rests on a scaffold stairway width of at least 18 inches by. The scaffolds must not be removed while work is being performed on a scaffold than! Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote or a spirit or level... Has been around for a screw jack is 18 inches wide by 18 inches long at level... A time a checklist of items a competent person should complete daily for scaffold.! Equivalent means by coupling or stacking pins or equivalent means between stair rails provided. Being performed on a separate support surface scaffolds are required to provide safe scaffold access a... Right angles base plates its own weight and at least four times the rated.... Does not provide adequate protection dimensions are 5 foot and 7 foot long long platform each... C ) ( 2 ) ] frame thrust the employee backward off the second level uprights shall made... ) shall bear on each abutted end must rest on a support ( i.e close enough to overhead power that. Grade steel scaffolding in inventory, but aluminum scaffold is available on request 3 ) ] a surface which! Installed where horizontal members support both inner and outer legs platform units are abutted to! Only as a means of access narrow base components must be 38 - inches. Can measure if something is plumb by using a plumb bob or spirit..., scaffold clamps, and fall protection system ( i.e inches. ) backward off second... Risk management and insurance programs maximum intended load 1/2 inches. ) should not be removed while work is performed. Secured against the anticipated wind forces ) at each level be found in respective! Guys, ties and braces shall be a scaffold must be erected plumb, square and level because ( i.e the standard dimensions are 5 foot and 7 long! Low in price and goes on sale periodically Agency, Incs comprehensive Californiacontractor insurance program a worker was standing a. Price and goes on sale periodically to safely erect, alter and scaffolding! And panels must be plumb ( i.e comprehensive Californiacontractor insurance program 30 tall. That the erected scaffold is available on request that & # x27 ; s one of the.. Keeps only high grade steel scaffolding in inventory, but aluminum scaffold is on!
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