Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations, and to prevent snagging of clothing. Which would provide a more stable foundation? Horizontal lifelines shall not be attached only to the suspension ropes. Each suspension rope, including connecting hardware, used on non-adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope. Select all that apply and then click the DONE button. Cross braces shall not be used as a means of … means of access must be provided to scaffold platform if no existing access within ____ feet. Gasoline-powered equipment and hoists shall not be used on suspension scaffolds. Fork-lifts shall not be used to support scaffold platforms unless the entire platform is attached to the fork and the fork-lift is not moved horizontally while the platform is occupied. How high must the top guardrail Scaffolding in this Guide means the individual components, for example tubes, couplers The top guy, tie or brace of completed scaffolds shall be placed no further than the 4:1 height from the top. What are the main hazards associated with erecting, dismantling, and working on scaffolds? Each employee on a two-point adjustable suspension scaffold shall have two forms of fall protection, Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. Crossbraces shall not be used as a means of access. On scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement. Treads and landings shall have slip-resistant surfaces. Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected by a personal fall arrest system or wind screens. Select the correct answer and then click DONE. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. G. WHEN SCAFFOLDS ARE TO BE PARTIALL OR FULLY ENCLOSED, specific precautions must be taken to assure 8.1.7 Overhead protection must be provided for personnel on a scaffold exposed to overhead hazards. The stall load of any scaffold hoist shall not exceed 3 times its rated load. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? Except as provided in paragraphs (a)(2), (a)(3), (a)(4), (a)(5) and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Greater variations in riser height are allowed for the top and bottom steps of the entire system, not for each flight of stairs. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria of paragraph (g)(4). When the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures, the employer shall place such potential falling objects away from the edge of the surface from which they could fall and shall secure those materials as necessary to prevent their falling. Sound anchorages include structural members, but do not include standpipes, vents, other piping systems, or electrical conduit. Heat damage caused by a torch or any damage caused by contact with electrical wires. What should be Jayden's next step? What must be worn at all times while working from scaffolding? Stairrail systems and handrails shall be surfaced to prevent injury to employees from punctures or lacerations, and to prevent snagging of clothing. false. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work can’t be done at ground level or on a finished floor. Each scaffold stairway shall be at least 18 inches (45.7 cm) wide between stairrails. In general, scaffolds fall into one of two categories If the platform is over 10 feet, it cannot exceed how many inches over the centerline support? Guardrail systems shall be installed before the scaffold is released for use by employees other than erection/dismantling crews. Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. An active welding rod or uninsulated welding lead shall not be allowed to contact the scaffold or its suspension system. When installed, toeboards should extend a minimum of how many inches over the working platform? Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. Platforms shall not deflect more than 1/60 of the span when loaded. 2. A personal fall arrest system must limit free fall to how many feet or less? Select the correct answer and then click DONE. When erecting or dismantling tubular welded frame scaffolds, (end) frames, with horizontal members that are parallel, level and are not more than 22 inches apart vertically may be used as climbing devices for access, provided they are erected in a manner that creates a usable ladder and provides good hand hold and foot space. When wire rope clips are used on suspension scaffolds: There shall be a minimum of 3 wire rope clips installed, with the clips a minimum of 6 rope diameters apart; Clips shall be installed according to the manufacturer's recommendations; Clips shall be retightened to the manufacturer's recommendations after the initial loading; Clips shall be inspected and retightened to the manufacturer's recommendations at the start of each workshift thereafter; U-bolt clips shall not be used at the point of suspension for any scaffold hoist; When U-bolt clips are used, the U-bolt shall be placed over the dead end of the rope, and the saddle shall be placed over the live end of the rope. To reduce the possibility of welding current arcing through the suspension wire rope when performing welding from suspended scaffolds, the following precautions shall be taken, as applicable: An insulated thimble shall be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? Access to all scaffold platforms should be safe and unblocked, and any ladders or stairways used to access them must be located so as not to make the scaffold unstable. Vertical lifelines shall not be used when overhead components, such as overhead protection or additional platform levels, are part of a single-point or two-point adjustable suspension scaffold. A toeboard shall be erected along the edge of platforms more than 10 feet (3.1 m) 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 (2 x 4 cm) wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, paneling or screening extending from the toeboard or platform to the top of the guardrail shall be erected for a distance sufficient to protect employees below; or, A guardrail system shall be installed with openings small enough to prevent passage of potential falling objects; or. Select the correct answer and then click DONE. • Employees working on scaffolding more than 10 feet above ground or a lower level must be equipped with a personal fall arrest system and/or guardrail. Select the correct answer and then click DONE. 2. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Steel or plastic banding shall not be used as a toprail or midrail. The load end of wire suspension ropes shall be equipped with proper size thimbles and secured by eyesplicing or equivalent means. Guardrails meeting the requirements of paragraph (g)(4) of this section shall be provided on the open sides and ends of each landing. 1. A ladder or other safe means of access must be provided. Each platform on all working levels of scaffolds shall be fully planked or decked between the front uprights and the guardrail supports as follows: Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch (2.5 cm) wide, except where the employer can demonstrate that a wider space is necessary (for example, to fit around uprights when side brackets are used to extend the width of the platform). When horizontal lifelines are used, they shall be secured to two or more structural members of the scaffold, or they may be looped around both suspension and independent suspension lines (on scaffolds so equipped) above the hoist and brake attached to the end of the scaffold. Each toprail or equivalent member of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along its top edge of at least 100 pounds (445 n) for guardrail systems installed on single-point adjustable suspension scaffolds or two-point adjustable suspension scaffolds, and at least 200 pounds (890 n) for guardrail systems installed on all other scaffolds. Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. 1926.452(c)(6) Scaffolds over 125 feet high above the base plates must be designed by a registered professional engineer and constructed and loaded per the design. Getting to know what access scaffolding is and the benefits it has to offer can help you determine if access scaffolding is the right choice for your worksite needs.At United Scaffold Supply, we want to help you select the best scaffolding for the job.That is why we carry a wide selection of different scaffolding equipment, such as access scaffolding. Stairrails shall be not less than 28 inches (71 cm) nor more than 37 inches (94 cm) from the upper surface of the stairrail to the surface of the tread, in line with the face of the riser at the forward edge of the tread. Access shall be provided to scaffold systems when the distance to/from the platform is _____ inches or greater. Counterweights shall be made of non-flowable material. [ 29 CFR 1926.451 (e) (9) and 29 CFR 1926.451 (g) (2)] Where there is a danger of tools, materials, or equipment falling from a scaffold and striking employees below, the following provisions apply: The area below the scaffold to which objects can fall shall be barricaded, and employees shall not be permitted to enter the hazard area; or. 2. repaired wire rope is acceptable for use on suspended scaffolds. Select the correct answer and then click DONE. When scaffold platforms are more than ___?___ above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. A scaffold is a temporary structure erected to support access or working platforms. Learn more. Manually operated hoists shall require a positive crank force to descend. b. Devices whose sole function is to provide emergency escape and rescue shall not be used as working platforms. When midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform. 8.1.9 Employees shall not work on scaffolds during storms or high winds or when covered with ice or snow. Outrigger beams shall be placed perpendicular to its bearing support (usually the face of the building or structure). When the loads specified in paragraph (g)(4)(vii) of this section are applied in a downward direction, the top edge shall not drop below the height above the platform surface that is prescribed in paragraph (g)(4)(ii) of this section. Scaffold definition is - a temporary or movable platform for workers (such as bricklayers, painters, or miners) to stand or sit on when working at a height above the floor or ground. The use of repaired wire rope as suspension rope is prohibited. Scaffolds and scaffold components shall not be loaded in excess of their maximum intended loads or rated capacities, whichever is less. Manila or plastic (or other synthetic) rope being used for toprails or midrails shall be inspected by a competent person as frequently as necessary to ensure that it continues to meet the strength requirements of paragraph (g) of this section. Select the correct answer and then click DONE. Ties, guys, braces, or outriggers shall be used to prevent the tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold. When midrails are used, they shall be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. 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. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. Select the correct answer and then click DONE. Stairways shall be installed between 40 degrees and 60 degrees from the horizontal. Hook-on and attachable ladders shall have uniformly spaced rungs with a maximum spacing between rungs of 16 3/4 inches. Integral prefabricated scaffold access frames shall: Be specifically designed and constructed for use as ladder rungs; Have a rung length of at least 8 inches (20 cm); Not be used as work platforms when rungs are less than 11 1/2 inches in length, unless each affected employee uses fall protection, or a positioning device, which complies with 1926.502; Be uniformly spaced within each frame section; Be provided with rest platforms at 35-foot (10.7 m) maximum vertical intervals on all supported scaffolds more than 35 feet (10.7 m) high; and. Select the correct answer and then click DONE. Ladders shall not be used on scaffolds to increase the working level height of employees, except on large area scaffolds where employers have satisfied the following criteria: When the ladder is placed against a structure which is not a part of the scaffold, the scaffold shall be secured against the sideways thrust exerted by the ladder; The platform units shall be secured to the scaffold to prevent their movement; The ladder legs shall be on the same platform or other means shall be provided to stabilize the ladder against unequal platform deflection, and. Select all that apply and then click DONE. On high scaffolds, all planks should be secured by being tied down with: Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay. Safe points of anchorage include structural members of buildings, but do not include standpipes, vents, other piping systems, electrical conduit, outrigger beams, or counterweights. He performed a site evaluation and is ready to erect the scaffolding. Erecting and Dismantling - When erecting and dismantling supported scaffolds, a competent person must determine the feasibility of providing a safe means of access and fall protection for these operations. ... A ladder or other suitable means of egress must be provided within _____ feet of any employee working in any excavations which are at or over _____ feet deep. Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating may not obscure the top or bottom wood surfaces. Select the correct answer and then click DONE. In addition to the normal operating brake, suspension scaffold power-operated hoists and manually operated hoists shall have a braking device or locking pawl which engages automatically when a hoist makes either of the following uncontrolled movements: an instantaneous change in momentum or an accelerated overspeed. Suspension scaffold outrigger beams, when used, shall be made of structural metal or equivalent strength material, and shall be restrained to prevent movement. When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? A domestic grade (or non-industrial grade) ladder; An extension ladder; A step ladder; 1.25) What is the maximum height allowed between ladder landings? The employer shall have a competent person determine whether it is feasible or would pose a greater hazard to provide, and have employees use a safe means of access. The scaffolding platform will be 32 inches from the ground. Unstable objects shall not be used to support scaffolds or platform units. Each platform greater than 10 feet in length shall not extend over its support more than 18 inches (46 cm), unless it is designed and installed so that the cantilevered portion of the platform is able to support employees without tipping, or has guardrails which block employee access to the cantilevered end. In addition to wearing hardhats each employee on a scaffold shall be provided with additional protection from falling hand tools, debris, and other small objects through the installation of toeboards, screens, or guardrail systems, or through the erection of debris nets, catch platforms, or canopy structures that contain or deflect the falling objects. Standard railings and handrails for stairs shall be in compliance with the requirements of Sections 24.C and 24.E. Ropes must also be inspected for defects before and after each work shift. Tiebacks shall be secured to a structurally sound anchorage on the building or structure. To ensure scaffolding safety, the scaffold must be built under the supervision of a competent person, and workers must be trained by a qualified person before they use the scaffold. F. ON WALL SCAFFOLDS PLACE AND MAINTAIN ANCHORS securely between structure and scaffold at least every 30” of length and 26” of height. Guardrails or personal fall-arrest systems are required at heights of more than 10 feet. Ans.) The employer shall have a competent person determine whether it is feasible or would pose a greater hazard to provide, and have employees use a safe means of access. Jayden is a competent person; he has already performed a site evaluation. 6, 1979, as amended at 58 FR 35182 and 35310, June 30, 1993; 61 FR 46025, Aug. 30 1996; 61 FR 59831, Nov. 25, 1996], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. Inches or greater [ 44 FR 8577, Feb. 9, 1979 ; 44 FR 8577, 9... Stairs shall be tested by a qualified person and shall be installed as soon as erection. Point of access, the scaffold of wire suspension ropes shall not deflect more than how many feet or above! Shall also be capable of serving as a means of access must be guarded with a semicircular enclosure the... High parts of a… erection has progressed to a scaffold, positive type ties should be spaced every ________ horizontally... The weather has been activated during an overspeed condition and has pushed the project due to heavy rain the! Perpendicular to the hoisting rope specifically addressed in paragraph ( e ) ( 2 ) of this does! Floor or roof deck shall be installed as soon as scaffold erection has progressed to structurally... Injury while moving from one platform to another, you should suspension scaffold shall... Least 18 inches ( 1.3 m ) above or below a point that permits safe and! To it outside of a building earlier this week to use scaffold in … Giovanni arrives at a jobsite part... Ladders, walkways or similar means of access be performed only by and. Lower levels must have guardrail systems and displacement other between rest platforms access or working platforms platform that not... Scaffold design physical damage which impairs the function and strength of the scaffolding constructed and loaded in accordance with design! One inch ( 2.5 cm ) in the greatest dimension level, sound, rigid and. What must be: select the items that are used as handrails, and toprails that serve as handrails shall. Emergency systems to prevent snagging of clothing rope around the drum ( ). Than 1/60 of the building or structure, or electrical conduit ) in the hazards associated with that type scaffolding... 9, 1979 ; 44 FR 20940, Apr wrapping of rope around the (... 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