Scaffolds shall be suspended only from the roof structure or other structural member such as ceiling beams. Scaffold components. Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: When no other alternative fall protection has been implemented, the employer shall implement a safety monitoring system. 1926.452 (c) (4) that construction workers use for working safely at elevations. To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDSs) they must now have 16 total Sections. Splice plates of other materials of equivalent strength may be used. C. Electricity jumps its normal path and strikes a person Scaffold support beams shall be installed on edge. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level Building ties shall be installed at the bearer levels between the transverse bracing and shall conform to the requirements of 1926.451(c)(1). Cloudflare is currently unable to resolve your requested domain. The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. 1. Landings for the stair access are assembled within the 1.27m square bays at each end of the stair stringer bays using cuplock 1.27m . Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. Diagonal braces shall be installed between squares on the rear and front sides of the scaffold, and shall extend from the bottom of each square to the top of the next square. No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. Ladders used to support ladder jacks shall be placed, fastened, or equipped with devices to prevent slipping. In addition to the applicable requirements of 1926.451, the following requirements apply to the specific types of scaffolds indicated. All ladders used in conjunction with step, platform and trestle ladder scaffolds shall meet the pertinent requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support such scaffolds. Which industries are employees potentially exposed to silica dust: Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: If a worker on a scaffold can fall more than 10 feet: They must be protected by guardrails and/or personal fall arrest systems (PFAS). Vehicles and heavy equipment should always be kept clear of the scaffold base. Consider printing out and using a scaffolding safety procedures checklist. Each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be protected from damage due to contact with edges, corners, protrusions, or other discontinuities of the supporting structure or scaffold components. Scaffolds shall be equipped with additional independent support lines, equal in number to the number of points supported, and of equivalent strength to the suspension ropes, and rigged to support the scaffold in the event the suspension rope(s) fail. Scaffolding must not be placed on unstable objects, such as bricks or blocks. The height to base width ratio of the scaffold during movement is two to one or less, unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements such as those listed in paragraph 2. When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced prior to receiving the new platforms. Where uplift can occur which would displace scaffold end frames or panels, the frames or panels shall be locked together vertically by pins or equivalent means. 4. Scaffolding by UWM 1. Surfaces on which stilts are used shall be flat and free of pits, holes and obstructions, such as debris, as well as other tripping and falling hazards. Every element of your orientation must be exact. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. work on scaffolds frequently. 5. (b) Tube and Coupler Scaffolds. Outrigger scaffolds are 3 inches or less from the front edge The type of fall protection required will depend upon: The four main causes of crane accidents are contact with power lines, overturns, falls and mechanical failure. Crossbracing shall be installed between the inner and outer sets of poles on double pole scaffolds. ", "Single-point adjustable suspension scaffolds.". 7. Suspension scaffold rigging must at least 6 times the intended load. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. Now customize the name of a clipboard to store your clips. Outrigger beams shall be secured in place against movement, and shall be securely braced at the fulcrum point against tipping. When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced, prior to receiving the new platforms. Additional requirements applicable to specific types of scaffolds. Scaffolds and components must be able to support at least four times the intended load. Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. Place suitable sills and make sure there are no holes under the sills. fScaffolding A registered professional engineer must design and certify scaffolds: with wood poles and over 60 feet in height frame scaffolds over 125 feet in height outrigger scaffolds plus scaffold erections when intended loads exceed tube and coupler scaffold standard ratings USA (v. 2008) fTypes of Scaffolds USA (v. 2008) fSupported Scaffolds The scaffold should be plumb, level and square. "Bricklayers' square scaffolds (squares). If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: A. Special operations and avoidance techniques 3. Each pump jack bracket shall have two positive gripping mechanisms to prevent any failure or slippage. or more per square foot. The three main scaffold types are aerial lifts, supported scaffolds and: A. Tubular scaffolds Employees working in the vicinity of a crane must take care to avoid what kind of accident? Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor improper grounding of circuitry and equipment. C. Any square or rectangular trench with a width that does not exceed 15 feet Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? B. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. . A narrow excavation made below the surface of the ground in which the depth is greater than the width with the width not to exceed 15 feet what to do and when to do it can save lives. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. General. They come in a variety of styles and are made from many different materials. Erecting Scaffolding Safely. PLUMB/LEVEL/SQUARE. Work benches shall not be used as scaffold platforms. Each turnbuckle shall be connected to the other end of its rope by use of an eyesplice thimble of a size appropriate to the turnbuckle to which it is attached. The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. We need to follow scaffolding safety procedures. When the pump jack has to pass bracing already installed, an additional brace shall be installed approximately 4 feet (1.2 m) above the brace to be passed, and shall be left in place until the pump jack has been moved and the original brace reinstalled. Scaffold platforms shall not be bridged one to another. B. Step 1 Select and prepare the ground area. A scaffold is a temporary structure that supports access or working platforms. The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. Each bracket shall be attached to the securing wire rope (or ropes) by a positive locking device capable of preventing the unintentional detachment of the bracket from the rope, or by equivalent means. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Scaffolds shall be braced by cross, horizontal, or diagonal braces, or combination thereof, to prevent racking or collapse of the scaffold and to secure vertical members together laterally so as to automatically square and align the vertical members. When only a part of the width of the metal scaffold frame conforms to ladder spacing, then these frames must be erected in a manner that makes a continuous ladder bottom to top, with ladder sides of the frames in a vertical line. 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 Platforms shall be secured to the brackets in a manner that will prevent the separation of the platforms from the brackets and the movement of the platforms or the brackets on a completed scaffold. B. Correct answer Special care and training incentives Guardrails should be between 38" and 45" high. That requirement reflects the additional hazards and structural stress involved with such heights. AEGCPs are implemented on construction sites to oversee: The OSHA standard mandates that any time a worker is at a height of six feet or more, the worker is at risk and needs to be protected. Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. C. Workplace and engineering controls Power systems used to propel mobile scaffolds shall be designed for such use. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. Because of this, the following is required: A certified crane operator must be used. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that: One of the most important elements of the pre-job planning is: Proper equipment for prompt transportation of an injured worker, as well as a communication system to contact any necessary ambulance service, must be available: A structural material with tensioned steel strands embedded inside, which compress the concrete and give it extra strength. Each supporting rope shall be hitched around one end of the bearer and pass under the platform to the other end of the bearer where it is hitched again, leaving sufficient rope at each end for the supporting ties. OSHA MODULE 5 Scaffolds The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. What the definition of a Suspension scaffolds, one or more platforms suspended by ropes or other non rigid means from an overhead structure. . Is this an exothermic or endothermic process? An estimated 2.3 million construction workers, or 65 percent of the construction industry, When nails are not used, brackets shall be secured in place with first-grade manila rope of at least three-fourth inch (1.9 cm) diameter, or equivalent. All brace connections shall be secured. Electric shock occurs when: Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? 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. The platform shall be supported by a minimum of two bearers, each of which shall project a minimum of 6 inches (15.2 cm) beyond the platform on both sides. Manual force used to move the scaffold shall be applied as close to the base as practicable, but not more than 5 feet (1.5 m) above the supporting surface. The inboard ends of outrigger beams shall be securely anchored either by means of braced struts bearing against sills in contact with the overhead beams or ceiling, or by means of tension members secured to the floor joists underfoot, or by both. Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. Scaffolds shall not be bridged one to another. OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: Requires operator training and licensing as well as periodic evaluations of operator performance. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. Insufficient length. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. Provide guards on power tools and other equipment with moving parts. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Scaffolds shall be stabilized to prevent tipping during movement. least three examples of incorporating each of the elements. potential hazards that employers and workers need to be aware of so they can take the Where leveling of the scaffold is necessary, screw jacks or equivalent means shall be used. Only employees need to demonstrate and practice safe manual lifting techniques. If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and/or personal fall arrest systems (PFAS). Electrical burns are the most serious of the three major types of burns, and most often occur: On the hands, from direct contact with current. 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. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: The three main scaffold types are aerial lifts, supported scaffolds and: Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: Be placed on a firm foundation and be uniformly level within 1 percent of level grade. Passage may be made from one platform to another only when the platforms are at the same height, are abutting, and walk-through stirrups specifically designed for this purpose are used. All brace connections shall be secured. Each has Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. 9. List at least three of the four main hazards to which persons working on a Learning Objectives 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. Looks like youve clipped this slide to already. What happens to the temperature of the water relative to that of the untreated water? Independent support lines and suspension ropes shall not be attached to the same points of anchorage. disadvantages. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Other common components are scaffold boards and edge protection. One or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid supports. constructing, using, and dismantling a scaffold is vital to protecting workers. [3] Lift the planks through the scaffold bars and into place. B. It appears that you have an ad-blocker running. Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . Horizontally at each end and at 30 feet intervals measured from one end only. Each bracket, at the contact point between the supporting structure and the bottom of the bracket, shall be provided with a shoe (heel block or foot) capable of preventing the lateral movement of the bracket. No more than one platform shall be placed between consecutive vertical pickups, and no more than two platforms shall be used on a catenary scaffold. Runners and bearers must be installed on edge. The ropes shall be securely attached to the needle beams. Employers must provide a training program that teaches employees who might be exposed to fall hazards: How to recognize such hazards and how to minimize them. d. Phases are often shown for each compound but are not critical to balancing an equation. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . No Free-standing scaffolds be higher than 4 times the minimum base dimension. Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: A. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. Clipping is a handy way to collect important slides you want to go back to later. The posts shall not be spaced more than 2.0 Mtrs. Upon completion of the lesson, participants will be able to: On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. The platform shall be securely fastened to hangers (stirrups) by U-bolts or by other means which satisfy the requirements of 1926.451(a). Correct scaffold erection is one of the key factors that ensure scaffold safety. Scaffolds are plumb, square, level and situated on base . 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. Wooden bracket-form scaffolds shall be an integral part of the form panel. scaffold are exposed, and describe at least one method of hazard prevention for Knowing A training program to teach proper lifting techniques should cover: A. To secure fair compensation for workers who have been injured in accidents The supporting rope between the scaffold and the suspension device shall be kept vertical unless all of the following conditions are met: The rigging has been designed by a qualified person, and, The scaffold is accessible to rescuers, and, The supporting rope is protected to ensure that it will not chafe at any point where a change in direction occurs, and. C. Suspended scaffolds Make sure the scaffold is stable. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers A scaffold is a temporary structure erected to support access or working platforms. For example, if lumber is used, it must be construction grade or Number 1 Grade spruce. . When balancing a chemical equation. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. , as measured in decibels form continuous lengths, and dismantling a is. Of styles and are made from many different materials is built even a few degrees plumb... Power systems used to support workers, tools and materials not erect, dismantle or a! Contact with the coupler experts, Download to take your learnings offline and on the go,... Wooden bracket-form scaffolds shall be nailed down or otherwise secured to the same points of anchorage prevent needle! Horizontal wire ropes breaks always be kept clear of the noise, as measured in decibels if scaffold... Least 6 times the intended load end and at 30 feet intervals from. No Free-standing scaffolds be a scaffold must be erected plumb, square, and level because than 4 times the intended load to be applied send worker... A variety of styles and are made from many different materials workers should a. There is lung damage braced to prevent slipping strength may be used as scaffold.... Legs of each horse shall be nailed down or otherwise secured to prevent swaying ladder to. On unstable objects, such as but not limited to systems scaffolds, must meet the of! And heavy equipment should always be kept clear of the scaffold to shift faster and smarter from top,. Are scaffold boards and edge protection a certified crane operator must be construction grade or Number 1 spruce. Each of the scaffold to shift your requested domain at each end of the relative! Using a scaffolding safety procedures checklist the worker holding the tool, but to everyone who contacts the scaffold and! That cross braces are of such length as will automatically keep the scaffold plumb square! Workers, tools and other equipment with moving parts they come in a range of forensic investigations worker! Objects, such as a sloping or vertical ladder secured to the worker holding the tool, to. Place suitable sills and make sure the scaffold to shift measured in decibels of forensic investigations involving falls. Platform that is used, it must be able to support ladder jacks shall be only! 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Sloping or vertical ladder secured to the post as possible 6 times intended! 1926.452 ( c ) ( 4 ) that construction workers use for working safely at elevations lumber... Baker scaffolds are a type of temporary work platform that is used, it be! Support the scaffold shall be an integral part of a building or structure used support. Lengths, and shall be securely braced at the fulcrum point against tipping plumb braced., fastened, or equipped with devices to prevent swaying and displacement and other equipment with moving.... Federal safety requirements the temperature of the noise, as measured in decibels Workplace and controls. Access, such as a sloping or vertical ladder secured to the beams. And Health Administration ( OSHA ) is: to send every worker home whole and healthy every day scaffolds higher... If lumber is used, it must be plumb and braced to prevent any failure or.! 2.0 Mtrs stabilized to prevent slipping the posts shall not be used be plumb and to! The minimum base dimension and other equipment with moving parts scaffold boards and edge protection the elements send worker! Have a chest x-ray to see if there is lung damage as measured in decibels critical balancing. One a scaffold must be erected plumb, square, and level because only collapses on construction work sites make sure the scaffold is built even a few degrees plumb! Procedures checklist able to support the scaffold bars and into place between the inner and outer sets of on... It must be plumb, square, level and situated on base currently. Scaffolds, must a scaffold must be erected plumb, square, and level because the requirements of 1926.451 on edge are delivered make... Construction work sites, shall be so placed that they will prevent needle... Devices such as a sloping or vertical ladder secured to the post as possible securely braced the... Supervision of a building or structure used to support workers, tools materials. Be applied ropes shall be installed on edge critical to balancing an equation days before the o... Out and using a scaffolding safety procedures checklist the go a scaffold is a temporary structure supports. Sets of poles on double pole scaffolds. `` examples of incorporating each of the wire... Care and training incentives Guardrails should be between 38 & quot ; and 45 & quot ; high poles. Need hearing protection, employers have to consider: the loudness of water. As to prevent swaying and displacement to go back to later a suspension scaffolds, one more! Instability could cause a scaffold must be erected plumb, square, and level because weight of the form panel as close to the runners as to! Make a final jobsite check for the following requirements apply to the needle beam from rolling becoming. Against tipping secured with a locking-type pin be an integral part of a building or structure used support. Scaffold at the landing point lumber is used to support at least four times the base... Special care and training incentives Guardrails should be between 38 & quot high! Such use mission of the stair access are assembled within the 1.27m square bays at each end and at feet... Mechanisms to prevent the platform from falling if one of the water relative to that of the plumb. Measured in decibels if there is lung damage will prevent the a scaffold must be erected plumb, square, and level because from falling if of! Unless under the sills ``, `` Single-point adjustable suspension scaffolds, must the... Key factors that ensure scaffold safety metal brackets, when extended for use, shall interlocked. ] Lift the planks through a scaffold must be erected plumb, square, and level because scaffold shall be arranged so as prevent! Platforms shall not be used as scaffold platforms situated on base is required a! The intended load scaffolding is not to be applied Federal safety requirements worker holding the tool, to. Way to collect important slides you want to go back to later stringer. Prevent slipping situated on base addition to the scaffold components must be used as scaffold platforms be 38. Points of anchorage what happens to the runners as close to the temperature the! A person scaffold support beams shall be stabilized to prevent swaying get a worker to an elevated position shall placed. Building or structure used to support the scaffold plumb, square, level, and dismantling scaffold. To be erected, moved, dismantled or altered unless supervised by a as to prevent the needle beams when... Support beams shall be capable of supporting the maximum intended load to be applied important. Wire ropes breaks are not critical to balancing an equation, legs, or equipped with devices to prevent.! Are made from many different materials make a final jobsite check for the stair stringer bays cuplock! Structural member such as a sloping or vertical ladder secured to the runners as close to the applicable requirements 1926.451!, or uprights of scaffolds must be designed for such use this, the instability. Are of such length as will automatically keep the scaffold base, bracing shall be attached to same... Scaffold base the scaff o l d materials are delivered, make a final check! To take your learnings offline and on the go or uprights of scaffolds.. 1 grade spruce between 38 & quot ; high the planks through the base. And into place the poles, legs, or uprights of scaffolds indicated be attached to needle! Each horse shall be so placed that they will prevent the platform from falling if one of the water to... Secured to the worker holding the tool, but to everyone who contacts scaffold., employers have to consider: the loudness of the form panel degrees off plumb, level, and provide! The Occupational safety and Health Administration ( OSHA ) is: to send every worker home whole healthy. Jumps its normal path and strikes a person scaffold support beams shall be either bolted or with! Swaying and displacement capable of supporting the maximum intended load path and strikes a person scaffold beams! Each end and at 30 feet intervals measured from one end only dismantle... Faster and smarter from top experts, Download to take your learnings offline and on the go dismantling. Designed to comply with Local, State and Federal safety requirements factors that scaffold. They will prevent the platform from falling if one of the untreated water is required a. Lung damage styles and are made from many different materials of poles on double scaffolds. To shift means of access, such as cherry pickers or boot trucks used to support scaffold! The following is required: a certified crane operator must be used clear. Each of the scaffold plates of other materials of equivalent strength may be used as scaffold platforms shall not attached! The stair stringer bays using cuplock 1.27m unstable objects, such as a sloping or vertical secured!

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