Is this an exothermic or endothermic process? Plumb and level all scaffolds as the erection proceeds. Boatswains' chair seat slings shall be a minimum of five-eight (5/8) inch (1.6 cm) diameter fiber, synthetic, or other rope which will satisfy the criteria (e.g., strength, slip resistance, durability, etc.) Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. Why? Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. Crawling Board. Scaffolds are plumb, square, level and situated on base . Braces, bearers, and runners shall not be spliced between poles. Scaffold casters and wheels shall be locked with positive wheel and/or wheel and swivel locks, or equivalent means, to prevent movement of the scaffold while the scaffold is used in a stationary manner. that construction workers use for working safely at elevations. 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. Found a mistake? Scaffolds must be erected, dismantled, or moved only by properly trained workers. ( 2) Diagonal braces shall be installed on all sides of each square. (8) All ladders used for access shall conform to ladders, Article 25. OSHA requires that all excavations in which employees could potentially be exposed to cave-ins be protected by one or more of the following three methods: The formula for all simple slope excavations 20 feet (6.11 meters) or less deep states that for every foot of depth, the trench must be excavated back: Trench boxes or shields must be designed or approved by: Shoring or shielding is most often used when: The location or the depth of the excavation makes sloping back to the maximum allowable slope impractical. 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. improper grounding of circuitry and equipment. The three elements of a basic program for electrical safety are: All portable electric tools that are damaged shall be: If you have a three-prong plug and a two-hole receptacle, it is acceptable to: Use an adapter with an adapter wire connected to known ground. We've updated our privacy policy. There are an estimated $90 million dollars lost because of . Select the equipment you need and place it near the work area. B. 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. . Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Be placed on a firm foundation and be uniformly level within 1 percent of level grade No Free-standing scaffolds be higher than 4 times the minimum base dimension. disadvantages. 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. Supported scaffold poles, legs . and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Boatswains' chair seat slings shall be reeved through four corner holes in the seat; shall cross each other on the underside of the seat; and shall be rigged so as to prevent slippage which could cause an out-of-level condition. B. Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. One or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid supports. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. 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. Scaffolding by UWM 1. C. To send every worker home whole and healthy every day Two other errors mentioned in this module that often lead to trouble are: Improper maintenance and failure to conduct regular inspections. Scaffolding in this Guide means the individual components, for example tubes, couplers Suspension scaffold rigging must at least 6 times the intended load. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. You do not have access to www.concreteconstruction.net. When an employee is using stilts on a large area scaffold where a guardrail system is used to provide fall protection, the guardrail system shall be increased in height by an amount equal to the height of the stilts being used by the employee. The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. Many precautions must be taken before scaffolding work can commence. B. At holes, guardrail systems must be set up: The top edge of a guardrail must be from 39 to 45 inches above the walking/working level, and there must also be a means of protection from: Falling objects between top rail and walking surface. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. Which of the following is an element of a hearing conservation program? Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. It appears that you have an ad-blocker running. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. Correct answer Special care and training incentives True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. The frames must be plumb and level and spaced to adequately support the loads. 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. Forklifts, trucks, similar motor vehicles or add-on motors shall not be used to propel scaffolds unless the scaffold is designed for such propulsion systems. Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. 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. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Move the scaffold into your desired position, and make sure it is level and secure. aluminum, or less commonly, wood. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position Plumb and level the scaffold as it is being erected. Engineering and Administrative Controls. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. what to do and when to do it can save lives. Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. Some simple scaffolds are little more than planks and guardrails over two 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. These rules were combined under the umbrella of OSHA. Use of fall protection above 10 feet. This means that whatever you're working on won't be tilted or sloped in any way. What the percentage of the construction industry that work on scaffold 2.3 million or 65 percent Most scaffolds at jobsites are made of what type of material Aluminum, Steel or less commonly wood 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've encountered a problem, please try again. 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. ", "Step, platform, and trestle ladder scaffolds. C. Wear goggles or safety spectacles 6, 1979, as amended at 55 FR 47687, Nov. 14, 1990; 61 FR 46025, Aug. 30, 1996; 85 FR 8736, February 18, 2020], Occupational Safety & Health Administration. Scaffolds shall be used only for the purpose of working at the window opening through which the jack is placed. C. Explosives When moving platforms to the next level, the existing platform shall be left undisturbed until the new end frames have been set in place and braced prior to receiving the new platforms. Erecting Scaffolding Safely. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. B. Splice plates of other materials of equivalent strength may be used. When two single-point adjustable suspension scaffolds are combined to form a two-point adjustable suspension scaffold, the resulting two-point scaffold shall comply with the requirements for two-point adjustable suspension scaffolds in paragraph (p) of this section. 2. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. for construction, the agency estimated that by protecting these millions of workers from Other common components are scaffold boards and edge protection. Scaffolds must be constructed of suitable structural materials. Light metal-type platforms having a rated capacity of 750 pounds or less and platforms 40 feet (12.2 m) or less in length shall be tested and listed by a nationally recognized testing laboratory. The SlideShare family just got bigger. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. Every element of your orientation must be exact. 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. 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