a means of access must be provided to a scaffold
The following sections can be referenced for specific guidelines when using scaffolds at Princeton. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). \text { Advertisement } 8. 3.Metal Is it safe for Giovanni and his team to use the scaffolding? When the work area is less than 18 inches wide. 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". Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffolds structural integrity is maintained. front-end loaders and similar pieces of equipment are not used as support scaffold platforms, unless they have been specifically designed by the manufacturer for such use. a. Dismantle the scaffolding. Hard hats In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. When erecting and dismantling tubular, welded-frame scaffolds, and end frames are used as climbing devices for access, make sure: Horizontal members are parallel, level, and not more than 22 vertical inches apart. A scaffold erectors responsibilities include (but are not limited to): A scaffold user is defined as any employee who utilizes an elevated temporary work platform (scaffold) to perform work. 1. Improper Access Leads to Serious Injuries. A mobile ladder stand may also have handrails and is designed for use by one employee at a time. \text { Type of } \\ a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site . The use of repaired wire rope is prohibited. Make sure two or more vertical lifelines are not attached to each other, or to the same point of anchorage. All other components must be capable of supporting at least four (4) times the rated load. 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. Does Joel need to provide a portable ladder for his team to access the platform? d.5 to 1, The space between adjacent planks and the space between the plank and the uprights must be no more than: No more than three workers are permitted to work at one time on suspension scaffolds with a working load of 750 pounds. %PDF-1.4
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c. 3.5 inches The scaffolding components are clearly from various manufacturers. a that apply to the following statement and then click DONE. 2012-10-05T11:53:02-04:00 The team is given a set of scaffolding components to assemble. 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. Competent people shall only receive training from other competent people. 1926.451(e)(9) & (g) Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. Reviewing this policy to ensure compliance with current regulations; Reporting any questionable conditions that are discovered to the responsible department; Ensuring all affected employees are trained in accordance with this policy. Counterweights shall be secured by mechanical means to the outrigger beams. Crossbraces must not be used as a means of access. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. The department will designate, identify, and provide training for competent persons within the department. 9. The guardrail system must not deflect to a height less than 39 inches. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Rolling scaffold must not be used on sloped surfaces. Specific requirements are described below. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. Specific requirements are described below. Erecting scaffolds in accordance with local, state, and federal. Ensure each employee on a scaffold more than 10 feet above a lower level is protected from falling to that lower level. Make sure the planks are not allowed. 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. Select the correct answer and then click DONE. At all points of a scaffold where the platform changes direction, such as turning a corner, any platform that rests on a bearer at an angle other than a right angle shall be laid first, and platforms which rest at right angles over the same bearer shall be laid second, on top of the first platform. The spaces between platforms cannot exceed one inch. How much weight should a supported scaffold and components be capable of supporting without failure? c.Three feet When the scaffold work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61 centimeters) vertically from the other surfaces. d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? Independent lifelines should be protected from abrasion and wear. Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. 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. The scaffolding will extend twenty feet into the air. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? d.6 inches, A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? Scaffolding student language requires that teachers understand their students and the language being used during lessons, to identify and support the targeted language that can be provided during instruction. Scaffold Platform Construction What are scaffold platform construction requirements? Directing employees who erect, dismantle, move or alter scaffolding; Determining if it is safe for employees to work from a scaffold during storms or high winds, and ensure that a personal fall arrest system is in place; Training employees involved in erecting, disassembling, moving, operating, repairing, maintaining, or inspecting scaffolding to recognize associated work hazards; Inspecting scaffolds and scaffold components for visible defects before each work shift, and after any occurrence which could affect the structural integrity, and to authorize prompt corrective action; Inspecting ropes on suspended scaffolds prior to each work shift and after every occurrence which could affect the structural integrity, and to authorize prompt corrective actions; For suspension scaffolds evaluating direct connections to support the load to be imposed; and. Check to make sure frames are stacked, and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. Select the correct answer and then click DONE. a.2 to 1 Do not force members to fit. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. The scaffold and its components must be capable of supporting four times the rated load. The ground where he needs to place the footing is dry but uneven in spots. The most frequent fall-from-elevation accident is a fall off ladders. a.15 feet He performed a site evaluation and is ready to erect the scaffolding. Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. All scaffolds more than six feet above the lower level shall protect employees with guardrails on each open side of the scaffold. Determine if fall protection is feasible during the erecting process. d.28 inchesa, When ladders are used on a supported scaffold that is taller than 35 feet, then rest platforms must be available at intervals no greater than: Employers must ensure that: 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. . Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. a.One mudsill per leg 2.Always use the proper ladder or stairs. Select the correct answer and then click DONE. Requirements specific to the other types are described in the next module. 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. 1.Use gravel to fill in the uneven spots. Contacting and coordinating with the Competent Person regarding any issues associated with the erection of a scaffold. Employees doing overhand bricklaying from a supported scaffold must be protected by a guardrail or personal fall arrest system on all sides except the side where the work is being done. c.Inspect the scaffolding for paint. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. This scaffold is overloaded and planks are strained. 2. 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. \text { Advertised } Select the correct answer and then click DONE. c.Anyone d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. Cross bracing is not acceptable as an entire guardrail system but is acceptable for a toprail when the crossing point of the two braces is between 38 inches (0.9 meters) and 48 inches (1.3 meters) above the work platform and for midrails when between 20 inches (0.5 meters) and 30 inches (0.8 meters) above the work platform. Ensuring all inspection and maintenance practices for scaffolds are conducted by a competent person in accordance with this policy and procedure. The team has been unable to work on the project due to heavy rain over the last two days. The end points at each upright shall be no more than 48 inches. \end{array} & \begin{array}{l} b.Once a week The competent person is the shop supervisor or her/his designated representative. The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. Cross bracing is not acceptable as an entire guardrail system but is acceptable for a toprail when the crossing point of the two braces is between 38 inches (0.9 meters) and 48 inches (1.3 meters) above the work platform and for midrails when between 20 inches (0.5 meters) and 30 inches (0.8 meters) above the work platform. b.Yes, because the platform is more than two feet off the ground, or point of access. Where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches unless the platforms are nailed; A platform greater than 10 feet in length shall not extend over its support more than 18 inches, 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; A platform less than 10 feet in length shall not extend over its support more than 12 inches, 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; Wood surface shall not be covered with opaque finishes, other than the edges for making identification; Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating shall not obscure the top or bottom wood surfaces; and. 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. The means of access must be determined before erection of the scaffold and employees are never allowed to climb on cross braces for either vertical or horizontal movement. The department also to provide competent person with document indicating that they are competent persons representing their respective departments and shall agree to uphold all local, state, and federal rules and regulations as they relate to scaffolding. Therefore, employers are required to provide safe scaffold access. Cross braces shall not be used as a means of access. are specifically designed and constructed for use as ladder rungs, are not used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection, have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches, have rest platforms provided at a maximum of 35 foot vertical intervals, a stair rail consisting of a toprail and a midrail on each side of the stairway, a toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided, sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling, stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing, stair rails and handrails constructed so that they do not constitute a projection hazard, a space of at least 3 inches between handrails, or stair rails used as handrails, and other objects, a distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser, a landing platform at least 18 inches wide by 18 inches long at each level, a scaffold stairway width of at least 18 inches between stair rails, slip-resistant surfaces on treads and landings, stairways installed between 40 degrees and 60 degrees from the horizontal, guardrails meeting OSHA requirements on the open sides and ends of each landing, uniform riser height, within -inch, for each flight of stairs, greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs), uniform tread depth, within -inch, for each flight of stairs, Ensure ramps and walkways 6 feet or more above lower levels have guardrails that comply with. Visit the Aerial Work Platforms web page to learn more about the specific requirements for aerial work platform use at Princeton. c.30 feet Scaffold should not be occupied while moving unless a competent person has determined it is safe to do so. Load carrying information on components is available from the scaffold manufacturer. You can correct any missed questions and check your multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Note: Except where indicated, these . d.24 inches, On high scaffolds, all planks should be secured by being tied down with: Included here are general requirements for all scaffolds. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? Ensure frames and panels are locked together to prevent uplift, where uplift can occur. b. b. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Single-point adjustable suspension scaffolds. Scaffolds must be plumb, level, and squared. Prior to occupation scaffold erectors must notify the competent person that the scaffold has been erected and is ready to be inspected. b.38 - 45 inches A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? What is the most common type of supported scaffold? 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. Before erecting a scaffold, the first step is to: a.Perform a site evaluation. 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. chubby d.12. Be sure scaffolding stays level and plumb as erection progresses. One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. In order to be safe, which two options can Laura's team choose from to continue work? 2.Electrical Insulated Lines; Voltage Minimum; Distance Alternatives, Uninsulated Lines; Voltage Minimum; Distance Alternatives. Be sure employees are able to safely access any level of a scaffold that is 2 feet above or below an access point. Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . to prevent falls. Select the correct answer and then click DONE. In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. 2. He fell approximately 12 feet to a concrete dock. footings are capable of supporting the loaded scaffold without settling or displacement. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. 1. Should he use those planks? \text { discount; pink or silver; } \\ Per 1926.451 (g) (1), each employee on a scaffold more than 10-feet above a lower level must be protected from falling to that lower level (also note American National Safety Institute/American Society of Safety Professionals (ANSI/ASSP) - Scaffolding Safety Requirements A10.8-2019 standard). 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. endstream
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Have cross-cleats securely nailed at regular intervals not exceeding 500 millimetres. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. 3.Falling objects Because frame scaffolds are the most common type of supported scaffold, this course uses the Fabricated Frame Scaffold to describe requirements that are common to all supported scaffolds. Select all that apply and then click DONE. 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. c.10 inches Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Before each use a. unstable objects are not used to support scaffolds or platform units. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. Training of other competent persons, scaffold erectors, and users. \text { Product } \\ \end{array} b.12, 16 Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Two feet What should you do before dismantling a scaffold? The footing of scaffolding must be sound and rigid, capable of supporting the weight. 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 This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Inspections of scaffolds after changes / alterations have been made. Make sure that anything that could cause a slip, trip or fall (i.e. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? 5.Use taglines if a load could swing and hit the scaffold. Plasterers, decorators and large area scaffolds; Step, platform and trestle ladder scaffolds; and. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Base plates or screw jacks shall be in firm contact with both the sills and the legs of the scaffolding. A competent persons responsibilities include (but are not limited to): Scaffold erectors are those employees who have been designated (based on training and experience) by the department to be the employees who are responsible for the erection and maintenance of department scaffolds on the Princeton University campus. Fall Protection. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. a.16 inches To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. This threshold differs from 29 . 12. Direct . A ladder or other safe means of access must be provided. b.One continuous mudsill under both legs Which of the events increase potential GDP and which decrease it? -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces 4.Wear face masks. \text { use to get e-mail, surf the } \\ The competent person shall be trained in accordance with the Occupational Safety and Health Administration (OSHA) and responsible for: Qualified persons shall be responsible for: No University employee shall design scaffolding. d.Hearing protection. Tiebacks must be secured to a structurally sound anchorage on the building or structure.
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\79bj!1}dpB~9V&co7Sj. safety@uchicago.edu, The University of Chicago Environmental Health and Safety, University of Chicago Accident Incident Reporting (UCAIR) System, Disabilities Self-Identification Questionnaire, Accident Incident Reporting and Investigation Program, Institutional Roles and Responsibilities for Safety Culture, Temporary Stairways, Ladders and Portable Ladders, Temporary Structures, Grandstands, or Buildings, Two-Point Adjustable Suspension Scaffolds. \text { Students-back } \\ The following types of scaffolds are prohibited for use on University property: All employees working on scaffolds six feet or more above ground/floor level shall use fall protection in accordance with the Fall Protection policy. 2.A plank clip 1926.451(e)(1) . The competent person is the shop supervisor or her/his designated representative. 3.Check that no structural alterations were made. After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. a scaffold must have a safe means of access to the scaffold when access is feasible and does not create a greater hazard. c.13, 15 Scaffold is not level because it was erected without base plates on an uneven surface. b.18 inches Poor foundation: Scaffold end frames, which have no base plate, are erected on top of scrap wood and unstable cement blocks. the forklift is not moved horizontally while the platform is occupied. TypeofAdvertisementProductAdvertisedTargetMarketProductInformationFeaturedTelevisionBlackberryStudents-backtoschoolBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections\begin{array}{llll} . What should Ted do? c.After it has been used d.Registered engineer, Guys, ties, or braces must be installed where horizontal members support inner and outer legs when the scaffold has a height/width ratio greater than: Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Using wire to connect bracing is not safe. When are workers on scaffolding most vulnerable to fall hazards? b.Incompetent person b. Please answer all of the questions before checking your quiz answers. Ensure scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. A qualified person must do this analysis. The platform gaps are too wide. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. \text { Featured } Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. He fell 16 feet to the ground, sustaining facial fractures and other injuries. \text { Market } Inspecting all scaffold components prior to assembly to insure that components used are of similar material and in good repair before becoming a part of the completed scaffold. c.24 inches Its important to make sure all bracing on a scaffold has been properly constructed to make sure the scaffold does not collapse. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Scaffolding must not be placed on unstable objects, such as bricks or blocks. d.Five times, Which would provide a more stable foundation? Make sure hook-on and attachable ladder rungs: are positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level; have uniform spacing between rungs of a maximum 16 inches; have minimum rung length of 11 inches; and, have rest platforms provided at a maximum of 35-foot vertical intervals. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People Scaffolding must not be placed on unstable objects, such as bricks or blocks. Standard guardrails (e.g., handrail and midrail) and toeboards must be provided for all open sides of the scaffolding that are ten (10) feet or more above the surrounding surfaces.
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a means of access must be provided to a scaffold