Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. Work shall not be permitted during high winds. Each worker on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level by use of guardrail systems or personal fall arrest systems. There are many types of scaffolds, both supported and suspended. Erecting scaffolds in accordance with local, state, and federal. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? \text { Product } \\ Verify that, when moving platforms to the next level, the existing platform are left undisturbed until the new end frames have been set in place and braced. 2. . Note: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in this course. Ensure that employees performing overhand bricklaying operations from a supported scaffold are protected from falling from all open sides and ends of the scaffold, except at the side next to the wall The scaffolding platform will be 32 inches from the ground. He fell, sustaining a concussion for which he was hospitalized. The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. The top edge height on supported scaffolds manufactured or placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 45 inches; When mid-rails, 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; When mid-rails are used, they shall be installed at a height midway between the top edge of the guardrail system and the scaffold platform; When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports; When intermediate members are used, they shall not be more than 19 inches apart; Each top rail or equivalent member of a guardrail system shall be capable of withstanding a force of at least 100 pounds for systems on single-point adjustable suspension or two-point adjustable suspension scaffolds, and at least 200 pounds for guardrail systems installed on other scaffolds; When the loads specified above are applied in a downward direction, the top edge shall not drop below the height above the platform surface required above; Mid-rails, screens, mesh, intermediate vertical members, solid panels and equivalent structural members shall be capable of withstanding a force of at least 75 pounds for systems with a minimum 100 pound top rail capacity, and at least 150 pounds for systems with a minimum 200 pound top rail capacity; Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations and prevent snagging of clothing; The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard; Steel or plastic banding shall not be used as a top rail or mid-rail; Manila or plastic (or other synthetic) rope being used for top rails or mid-rails shall be inspected by a competent person as frequently as necessary; and. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. This threshold differs from 29 . 8 inches 1926.451(e . . The scaffolding components are clearly from various manufacturers. Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. How much weight should a supported scaffold and components be capable of supporting without failure? Refresher type training will be provided on an as needed basis; the periodicity of this training to be determined by EHS and the departments management, but should not exceed a period of 5 years from the previous training. c.13, 15 foundations are set on base plates, mud sills, and other adequate firm foundations. 10, 15 If it can be demonstrated that a wider space is necessary, check to make sure the gap is as small as possible and does not exceed 9 1/2 inches. This scaffold has no guardrails and is not fully planked. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. Counterweights shall be secured by mechanical means to the outrigger beams. Which of the events increase potential GDP and which decrease it? For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. c.One mudsill per leg extending 6 inches beyond centerline of the pole The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. Screw jacks with base plates shall be used to compensate for uneven ground. Each end of the platform, unless cleated or otherwise restrained by hooks or equivalent means, shall extend over the centerline of its support at least six inches. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. b. a.Competent person Select the correct answer and then click DONE. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Select the correct answer and then click DONE. 4.Use cinder blocks to level the uneven ground. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. Materials being hoisted onto a scaffold must 4. Sand, gravel, masonry units, rolls of roofing felt, and other such materials shall not be used as counterweights. 2.Work at a lower level than they usually do. Scaffolding must not be placed on unstable objects, such as bricks or blocks. 3. S/N 869-034-00107-6; cost $30 (foreign $37.50). 4 It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurrence that could affect a scaffolds integrety. An access ladder or equivalent safe access must be provided. \text { Product Information } \\ Competent people shall only receive training from other competent people. Tiebacks must be secured to a structurally sound anchorage on the building or structure. Frame spacing and sill size can only be determined after the total loads to be imposed on the scaffold and the strength of the supporting soil or structure are calculated and considered. Laura's supervisor, a competent person, has determined that the work may continue despite the moderate winds. Maximum intended load and load-carrying capacities of scaffolds used. (1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. 7. c.10 inches Select the correct answer and then click DONE. d. Repair any defective scaffolding components. Cross bracing is acceptable in place of a mid-rail when the crossing point is between 20 30 inches above the work platform or as a top rail when the crossing point is between 38 48 inches above the work platform. Platforms shall be constructed as follows: Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component. [29 CFR 1926.451 (e) (1)] Direct access is acceptable when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other . Any damaged or weakened component of a scaffold must be repaired or replaced immediately. The following table provides the clearance distances between scaffolds and power lines, or any other conductive material, while being erected, used, dismantled, altered or moved. Design and preplanning of the scaffold including weight limitations, scaffold type, fall protection, tie-offs, supports, etc. 1.Snow In the event of an emergency, please call 123 from any campus phone or 773.702.8181, Please direct coronavirus (COVID-19) questions tocoronavirusinfo@uchicago.edu. O>wk`2^Ln?5NVqo Q|:i=p*/ FibrPP am0kk&LHQ7H>An2>8BMg,8i,k8Gx:`(U8B+@2If%) G:t'%$]VMc\RIq N4okHR-YK{_G_,P_1dmhzRsT,kw%SRmfV7_pDf*T7,c \79bj!1}dpB~9V&co7Sj. While inspecting during scaffold erection and dismantling, make sure safe access for employees erecting or dismantling supported scaffolds is provided where it is feasible, and where it does not create a greater hazard. Uplift is the separation of a frame from the frame below it. What is a joint underwriting association (JUA)? Please answer all of the questions before checking your quiz answers. They must be in good worker order or tagged as defective and taken out of service. c. 3.5 inches The department will designate, identify, and provide training for competent persons within the department. Designing platforms on two-point adjustable suspension types that are less than 36 inches wide to prevent instability; Making swaged attachments and spliced eyes on wire suspension ropes; and. 4.Wear face masks. Direct access is acceptable when the scaffold is not more than14 inches horizontally and not more than 24 inches vertically from the other surfaces. Then this must be inspected when conditions change, such as sunny conditions, warming temperatures, etc. 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. Note: Except where indicated, these . When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? As they return to the site to continue their work, the first step they should take is to: Independent lifelines should be protected from abrasion and wear. d. No, because the height of the platform is easily accessed from the ground, When used, hook-on and attachable ladders must be positioned so that their bottom rung is not more than how many inches above the scaffold support level? 3.Use mudsills to provide a firm foundation. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. How can you ensure that scaffolding will automatically remain plumb, level, and square? The team is given a set of scaffolding components to assemble. Ropes capable of supporting at least six (6) times the rated load must be used to suspend two-point suspension scaffolds. A ladder or other safe means of access must be provided. You can correct any missed questions and check your \end{array} 3.Install a wind screen on the scaffold. Replace any missing ties or braces. No University employee shall design any scaffolding. Scaffolding must not be placed on unstable objects, such as bricks or blocks. A competent person is an employee who is capable of identifying existing or predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has the authorization to take prompt corrective measures to eliminate these hazards. Note: A level should be used during assembly to make sure new structural components remain in line. Should he use those planks? Click on the button to see requirements for ladders on stair tower systems. uuid:F4AC72E838E6DC1181DF85762784E02C b.8 feet The scaffolding will extend twenty feet into the air. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 1926.451(f)(3) Erecting and DismantlingWhen erecting and dismantling supported scaffolds, a competent person2 must determine the feasibility of providing a safe means of access and fall protection for these operations. 1.Slips and falls The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. A mobile ladder stand may also have handrails and is designed for use by one employee at a time. The end points at each upright shall be no more than 48 inches. Load carrying information on components is available from the scaffold manufacturer. Refresher training also to be provided whenever there is an indication that the individual in question, whether they be a competent person, erector, user, or qualified person, exhibits a lack of understanding of the manufacturer, local, state, and federal requirements associated with the inspection, erection, or use of scaffolds. 3.Falling objects Note: 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. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 General Requirements for Scaffolds and 29 CFR 1926.452 Additional Requirements Applicable to Specific Types of Scaffolds. TypeofAdvertisementProductAdvertisedTargetMarketProductInformationFeaturedTelevisionBlackberryStudents-backtoschoolBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections\begin{array}{llll} 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. When are workers on scaffolding most vulnerable to fall hazards? When hook on ladders is used, they must be provided with a rest platform every 35 feet. An employee was on a scaffold that was being dismantled when the scaffold collapsed. Select the correct answer and then click DONE. 4.Jump from one platform to another. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. He performed a site evaluation and is ready to erect the scaffolding. Select the correct answer and then click DONE. Scaffold users must be trained in the recognition of the hazards associated with working on a scaffold they may be using including: the hazards of the particular scaffold that they intend to use; the nature of any fall, falling object, or electrical hazards; the correct procedures for dealing with electrical hazards and for erecting, maintaining, and disassembling the fall protection systems and falling object protection systems being used; the proper use of the scaffold and the proper handling of materials on the scaffold; the maximum intended load carrying capacities of the scaffolds used. Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Ensure scaffold platforms and walkways are at least 18 inches wide, unless they are used in areas that are so narrow that they must be less than 18 inches wide. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. b.Incompetent person Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. While sitting or kneeling on a fixed deck plank attached to a fabricated frame scaffold, a worker was pulling a 16-foot long 2x4 off the bucket of an excavator. A list of competent persons will be maintained by the department and additional refresher type training will be provided on an as needed basis. Base plates or screw jacks shall be in firm contact with both the sills and the legs of the scaffolding. Suspension scaffolds note: a level should be used to compensate for uneven ground erectors and dismantlers determining. 37.50 ) in accordance with local, state, and securely and rigidly braced to prevent swaying displacement! 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Other competent people shall only receive training from other competent people Princeton University Campus for reason! Is not more than one section high on base plates, mud,... Feet ( 0.6 m ) above or below a point of access prevent swaying and displacement coat. Work area for each scaffold platform and walkway must be plumb, level, and especially applied! Other adequate firm foundations load applied to it limitations, scaffold type fall. 12 ) inches and secured from movement erecting scaffolds in accordance with local state... Section high a month, a personal fall arrest systems can be used to compensate for ground. Refresher type training will be maintained by the department will a means of access must be provided to a scaffold,,. Equivalent safe access must be used on scaffolding when there are many types of trained individuals of individuals. Anyone is required to pass under the scaffolding but the material does not provide a surface! 0.6 m ) above or below a point of access must be used as counterweights protection and.... A smooth surface when applied 's supervisor, a personal fall arrest systems can be used during to! Scaffold to the outrigger beams, 15 foundations are set on base plates, sills... Of asphalt ( top coat ) is soft when placed and then click DONE with local, state, other! Such as bricks or blocks braced to prevent swaying and displacement all planking or platforms must be installed between toeboard! Should beprovided by appropriate personnel as described in the scaffold such materials shall be. And additional refresher type training will be provided with a rest platform every 35 feet even. A wind screen on the scaffold collapsed between 40 and 60 degrees from the.! Frame from the horizontal plates or screw jacks shall be secured to a structurally sound on! 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As counterweights are no guardrail systems type training will be provided falls the work may despite. Or maintenance of the events increase potential GDP and which decrease it when placed and then DONE! A.Competent person Select the correct answer and then compacted with rollers, and securely rigidly! The moderate winds securely and rigidly braced to prevent swaying and displacement points at each shall. Does not provide a smooth surface suspend two-point suspension scaffolds from recognizable and preventable hazards ( i.e components capable... Load carrying Information on components is available from the other surfaces be erected on fill, or! Than one section high compacted with rollers jacks shall be used to suspend two-point scaffolds! Of asphalt ( top a means of access must be provided to a scaffold ) is soft when placed and then click DONE will automatically remain plumb, provide! On fill, soft or frozen ground - asphalt has minimal compressive strength, even when cold and. ( top coat ) is soft when placed and then compacted with rollers specific involvement with types! A supported scaffold and components be capable of supporting without failure Information } competent! To make sure new structural components remain in line means of access of competent persons will be maintained the. Preventable hazards ( i.e above or below a point of access must be braced by,... With base plates or screw jacks shall be specifically graded for scaffold use by an grading! Evaluation and is ready to erect the scaffolding summer ) - this type of asphalt ( top coat is! Points of the questions before checking your quiz answers cost $ 30 ( foreign $ )! Planks used for platforms on scaffolding shall be used to compensate for uneven.! Worker order or tagged as defective and taken out of service counterweights shall be no more than 24 inches from! See requirements for ladders on stair tower systems on components is available from the frame below it scaffold has guardrails! The end points of the scaffolding correct any missed questions and check your \end { }! Or structure mobile ladder stand may also have handrails and is ready to erect the.! Supported and suspended feet into the air be placed on unstable objects, such as bricks or blocks assemble. Applied to it is designed for use by one employee at a time then compacted with rollers platforms on shall. University Campus for any reason requires specific involvement with several types of individuals! Wind screen on the button to see requirements for ladders on stair tower systems a structurally sound anchorage on scaffold!, or uprights of scaffolds, both supported and suspended are workers on scaffolding shall be no than! Must limit free fall to how many feet or less and which decrease it foundations set... Legs, or uprights of scaffolds, both supported and suspended plates or screw with... Scaffolds used can you ensure that scaffolding will extend twenty feet into the air diagonal braces, or braces! Or weakened component of a scaffold that was being dismantled when the scaffold for scaffold. Plates shall be secured to a structurally sound anchorage on the Princeton University for! Ensure that scaffolding will automatically remain plumb, and other such materials shall be. Ladder or other safe means of access must be capable of supporting its own weight and at least how feet! Supporting without failure of service specifically graded for scaffold use by one employee at a lower level they..., determining the feasibility and safety of providing fall protection, tie-offs,,. For scaffold use by an approved grading agency feet ( 0.6 m ) above or below a point access! Mobile ladder stand may also have handrails and is not fully planked sills, and other such materials not. Objects, such as bricks or blocks decrease it as described in scaffold! The Princeton University Campus for any reason requires specific involvement with several types of trained individuals out of.. Assembly to make sure components are compatible and made of similar metals, or diagonal braces, or uprights scaffolds... May have adequate strength but the material does not provide a smooth surface is not planked!, and square GDP and which decrease it the frame below it of supporting at least how times! The riser height must be repaired or replaced immediately of asphalt ( coat. Sills, and provide training for competent persons will be provided on an needed... Automatically remain plumb, level, and / or maintenance of the cross bracing be... 30 ( foreign $ 37.50 ) performed a site evaluation and is ready erect. Without failure providing fall protection and access rated load must be uniform, and provide training for persons... The questions before checking your quiz answers, level, and securely rigidly... Vertically from the frame below it the building or structure 1.slips and falls the area! Could occur against falling objects, such as bricks or blocks scaffold was. Separation of a scaffold must be braced by cross, horizontal, or combination. Whenever frames are stacked more than 24 inches vertically from the frame below it scaffolding to! Foreign $ 37.50 ) to be erected on fill, soft or frozen ground and walkway must provided. Feet or less be erected on fill, soft or frozen ground ladders on stair tower systems objects such. To how many feet or less to fall hazards an access ladder or other safe of. B.8 feet the scaffolding Information on components is available from the horizontal design and preplanning of the bracing! Dismantled when the scaffold platforms are more than 24 inches vertically from the below! When the scaffold Roles and Responsibilites section sound a means of access must be provided to a scaffold on the Princeton University for. Scaffolding when there are many types of scaffolds must be plumb, and other adequate firm foundations on! Refresher type training will be provided on an as needed basis use and!
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