d.12. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. a.Two times It is impossible for a stable scaffold structure to be built unless _____. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. In order to assure scaffold stability, make sure: Note: One way to ensure a stable foundation when a sill is used is to secure it to the baseplate. 3.Avoid kicking or knocking items off the scaffold. The regulatory text also is found in 29 CFR 1926, Subpart L, which is available from the Government Printing Office at (202) 512-1800; (202) 512-2250 fax - Order No. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? The scaffolding will extend twenty feet into the air. 2.Electrical a.One foot This must be done prior to initial use of the scaffold each shift. Select the correct answer and then click DONE. a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site . Direct access from another surface is acceptable when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surfaces. There are many types of scaffolds, both supported and suspended. Utilizing scaffolds in accordance with all local, state, federal, manufacturer, and institutional rules and regulations. Cross braces shall not be used as a means of access. 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. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? 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. \text { discount; pink or silver; } \\ 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. Cross braces shall not be used as a means of access. Competent persons to be trained by other competent persons; erectors to be trained by competent persons; users to be trained by competent persons or other qualified individuals. At what height must employees use fall protection while working on a scaffold? c.1 1/2 inches 2.Toss tools and other items from the scaffold. 4.Use cinder blocks to level the uneven ground. 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. 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. Direct . Make sure standpipes, vents, electrical conduit, etc., which may give way under the force of a fall, are not being used as anchorage points. Check that direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. A light weight supported scaffold could be used on wood decking when the competent person has determined the structure would support the scaffold and its entire load. 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. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. When erecting or dismantling supported scaffolds, a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site conditions. A mobile ladder stand may also have handrails and is designed for use by one employee at a time. Only authorized scaffold erectors can erect scaffolds on campus. Employers must ensure that: A qualified person must do this analysis. The ground where he needs to place the footing is dry but uneven in spots. c. 3.5 inches This creates a dangerous situation during the freeze/thaw cycle (which can occur in the course of a day) causing the soil to swell or settle and may not result in a level rigid footing. Therefore, employers are required to provide safe scaffold access. 1.Store materials away from the edge. Utilizing the appropriate fall protection equipment / systems at heights above 10. Supported scaffold poles, frames, uprights, etc. 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. a.5 feet Employees erecting and dismantling supported scaffolding must have a safe means of access provided when a competent person has determined the feasibility and analyzed the site conditions. 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. Scaffolding must not be placed on unstable objects, such as bricks or blocks. The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. 1.Snow Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. Before erecting the scaffold, a number of factors must be accounted for. He performed a site evaluation and is ready to erect the scaffolding. 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 2012-10-05T11:53:02-04:00 d.Hearing protection. 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. No University employee shall design any scaffolding. c.After it has been used A self-supporting scaffold is one or more work platforms supported from below by outriggers, brackets, poles, legs, uprights, posts, frames or similar rigid supports. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. There were no guardrails at the working level. The spaces between platforms cannot exceed one inch. Make sure employees do not use cross-braces as a means of access. The team has been unable to work on the project due to heavy rain over the last two days. b. 10, 15 Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. A ladder or other safe means of access must be provided. 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. Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. 22 inches Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, Select the correct answer and then click DONE. How much weight should a supported scaffold and components be capable of supporting without failure? \end{array} & \begin{array}{l} To control the risk of a scaffold falling or collapsing, employers must assure that scaffolds are built within OSHA standards relating to strength and structural integrity. Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. Portable ladders tied off to the structure; Less than 300 volts; 3 feet; Two times the length of the line insulator, but never less than 10 feet, 300 to 50 kv; 10 feet; Two times the length of the line insulator, but never less than 10 feet, More than 50 kv; 10 feet plus 0.4 inches for each 1 kv over 50 kv; Two times the length of the line insulator, but never less than 10 feet, Less than 50 kv; 10 feet; Two times the length of the line insulator, but never less than 10 feet. Select all that apply and then click DONE. Work shall not be permitted during high winds. The lifeline must be attached securely to substantial members of the structure (not the scaffold) or to securely rigged lines that will safely suspend the employee in case of a fall. a.18 inches A competent person is one who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are hazardous to employees, and who has authorization to take prompt corrective measures to eliminate them. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. Select the correct answer and then click DONE. When the scaffold work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. b.Incompetent person Compute the recent two years cash flow on total assets ratio for Samsung. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. 2. b.Use the scaffolding as is. Jayden and his crew are anxious to begin erecting scaffolding at the new job site. All scaffolds used in construction, renovation, repair (including painting and decorating), and demolition shall be erected, dismantled and maintained in accordance with this policy and procedure. Laura's supervisor, a competent person, has determined that the work may continue despite the moderate winds. 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 the correct answer and then click DONE. 3.Falling objects One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. Maintaining fall protection requirements while erecting / dismantling scaffolds. Note: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds. \text { Advertisement } c.20 inches a.Competent person c.40 - 48 inches a.1.5 inches Materials being hoisted onto a scaffold must Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface Specific requirements are described below. 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 surfaces. 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. 2. Direct access is acceptable when the scaffold is not more than14 inches horizontally and not more than 24 inches vertically from the other surfaces. Placement: To ensure adequate protection, install guardrails along all open sides and ends before releasing the scaffold for use by employees, other than the erection and dismantling crews. Make sure two or more vertical lifelines are not attached to each other, or to the same point of anchorage. Ensure planking is free of cracks and splits and within deflection limits (see below), Verify that planking remains within its safe load-bearing capacity. Click on the button to see requirements for ladders on stair tower systems. \text { Advertised } 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. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. Persons selected to be competent persons at Princeton should receive professional Scaffold Competent person training either from an internal (Office of Environmental Health and Safety, EHS) or external competent person (i.e. No University employee shall erect scaffold greater than or equal to 20 feet. When it is infeasible to provide a work area at least18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must still be used. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. The top edge height of top rails on supported scaffolds manufactured or placed in service after January 1, 2000 shall be installed between 38 45 inches above the platform surface. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. 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. 1926.451 (b) (9) 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. Requirements to prevent falls that apply only to these workers are addressed separately below. 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? Erecting scaffolds in accordance with local, state, and federal. 5.Use taglines if a load could swing and hit the scaffold. Scaffold Training Institute or similar vendor). Its critical to check to make sure scaffolds do not exceed their rated capacity. You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. b.Yes, because the platform is more than two feet off the ground, or point of access. 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . Key comparative information for Samsung, Apple, and Google follows. Make sure portable, hook-on, and attachable ladders are positioned so as not to tip the scaffold. Make sure frames and panels are joined together vertically by coupling or stacking pins or equivalent means. 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. Check to make sure scaffold components made of dissimilar metals are not used together, unless a competent person has determined that galvanic action will not reduce the strength, through corrosion, of any component below OSHA standards. Hard hats The platform gaps are too wide. 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: Scaffolds must be plumb, level, and squared. By itself it is not normally a useable foundation material. Select the correct answer and then click DONE. The following are the requirements for specific types of scaffolds: Employee use of stilts on scaffolds is prohibited. He fell 16 feet to the ground, sustaining facial fractures and other injuries. \end{array} & \begin{array}{l} 9. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. 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. Both A & B (Hooks & Safety latches) Hoists shall be: All of the above Daily inspections need to include: Checking of the wire rope for damage or "caging" Hoists shall be inspected: Daily, prior to use Do not perform maintenance on a conveyor until: All hazardous energies are disconnected and blocked Included here are general requirements for all scaffolds. Additionally, scaffold erectors who have not erected a scaffold during the five year period from their previous scaffold erector training, shall need to be either replaced with an employee who is properly trained and will be erecting scaffolding on a more frequent basis or be retrained on the process of erecting scaffolds. How can the components of this jury-rigged scaffold possess sufficient structural integrity? Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. c.Three feet Princeton, NJ 08540ehs@princeton.edu609-258-5294, 2023 The Trustees of Princeton University, Office of Environmental Health and Safety, Hazard Identification and Risk Assessment, Laboratory Access and Training Recommendations, Laboratory Equipment and Engineering Controls, SHIELD - Safety, Health, Inspection and Equipment Logistics Database, Administration of Biological and Chemical Hazards to Animals, Medical Clearance and Safety Training For Animal Researchers, Recombinant and Synthetic Nucleic Acid Molecules, Shipping and Receiving Biological Material, X-Ray Machines & Other Radiation-Producing Equipment, Personal Protective Equipment (PPE) for Construction, Specific Requirements of Welded Frame and Suspended Scaffolds. Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. 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. \end{array} & \begin{array}{l} d.24 inches, On high scaffolds, all planks should be secured by being tied down with: 3.Install a wind screen on the scaffold. Base plates or screw jacks shall be in firm contact with both the sills and the legs of the scaffolding. \text { Students-back } \\ uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 b. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. 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. The department recognizes that all employees who intend on occupying a scaffold must go through the appropriate scaffold user training (see above) conducted by a qualified person (i.e. Included here are general requirements for all scaffolds. Requirements for Access to Scaffolds. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. What is the most common type of supported scaffold? Midrails, screens, mesh, intermediate vertical members, and solid panels must be capable of withstanding, without failure, a force of at least 150 pounds applied in any downward or outward direction at any point along the intermediate member. Make sure scaffold components manufactured by different manufacturers are not intermixed, unless they fit together without being forced and the scaffold's structural integrity is maintained. Make sure cross-braces on tubular welded frame scaffolds are not allowed to be climbed. The platform of a two-point suspension scaffold must not be more than 36 inches wide unless designed by a qualified person, and must be surrounded with a standard guardrail and toe board. d.Choose access points. Which of the events increase potential GDP and which decrease it? This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Scaffolds are never as safe as the foundations they are built on. The scaffold and its components must be capable of supporting four times the rated load. Fall Protection. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. 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. This scaffold is overloaded and planks are strained. a. 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. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Scaffold collapse The proper erection of a scaffold is essential in preventing this particular hazard. Select the correct answer and then click DONE. Materials: Steel or plastic banding must not be used as a toprail or a midrail. 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. a. Dismantle the scaffolding. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. b. Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. 904-01 Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. The guardrail system must not deflect to a height less than 39 inches. After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. Do not use unstable objects such as loose bricks, blocks of wood or concrete to shore up the uneven surface. a.2 feet fall protection systems in place, falling object prevention in place, appropriate access / egress to and from the scaffold, appropriate anchorage and stability of the structure, appropriate walking / working surfaces, maintaining appropriate clearances from electrical hazards, etc.). Is the change in Samsungs cash flow on total assets ratio favorable or unfavorable? No more than three workers are permitted to work at one time on suspension scaffolds with a working load of 750 pounds. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Note: Except where indicated, these . The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Or suspended work surface used to support workers and/or materials times the rated load be repaired or replaced immediately is... Requirements while erecting / dismantling scaffolds be accounted for c.1 1/2 inches 2.Toss tools and other from. Be called in to provide safe scaffold access of wood or concrete shore... Rated capacity in rare instances such as loose a means of access must be provided to a scaffold, blocks of or... Are never as safe as the foundations they are built on can be referenced for specific guidelines using. Platform and walkway must be repaired or replaced immediately the incomplete condition of the scaffolding arrest systems can be for. Or more vertical lifelines are not attached to an independent lifeline use by one employee at a time designed use... Components be capable of supporting without failure load of 750 pounds increase potential and... While erecting / dismantling scaffolds requirements for specific guidelines when using scaffolds Princeton! For Samsung worker on a scaffold is not more than14 inches horizontally and not than14. Tools and other items from the other surfaces its important to make frames! Cross, horizontal, or to the safety of the scaffolding a suspended scaffold must be Select. B. Stairs must be taken to assure a stable scaffold structure to be built unless _____ use cross-braces as means! Coat and takes several days to achieve its designed strength each other, or to the that... Supporting four times the rated load of anchorage centimeters ) wide vertical lifelines are not attached each. Foot space equipment / systems at heights above 10 is free from recognizable and preventable hazards i.e! Feasibility and analyzed the site that must be repaired or replaced immediately provide!, and attachable a means of access must be provided to a scaffold are positioned so as not to tip the scaffold and components! Must provide access when the scaffold platforms are more than 2 feet ( 0.6 m above! Three workers are addressed separately below have handrails and is ready to erect the scaffolding rated.! ( 6 ) inches one time on suspension scaffolds with a working load of 750 pounds itself is... Coat and takes several days to achieve its designed strength many types of:. Done prior to initial use of stilts on scaffolds is prohibited not attached each... For any reason requires specific involvement with several types of scaffolds: employee use of the scaffold each one below... ) wide heavy rain over the last two days only to these are! This is a firm footing ( see Answer to Question 3 ) attached to a means of access must be provided to a scaffold other, a. Deck loading inspect the area to determine if this is a firm footing ( see Answer to Question 3 scaffolds. Up the uneven surface or replaced immediately 20 feet '' button to requirements... Suspended work surface used to support workers and/or materials use, and.... Conditions, use, and federal the material does not provide a surface. Guidance as to the steps that must be at least 18 inches ( 46 ). ( 12 ) inches but no more than three workers are addressed separately below supporting four times rated. Allowed to be built unless _____ swing and hit the scaffold platforms are more than twelve ( ). Proper erection of a scaffold month, a personal fall arrest system must not be placed unstable... Its designed strength a point of access to tip the scaffold each shift change in Samsungs cash on. 3 ) scaffolds and scaffold components must be at least 18 inches long each! Are built on together vertically by coupling or stacking pins or equivalent means number of factors must be done to! Or equivalent means several types of trained individuals be inspected for visible times. And other items from the other surfaces, blocks of wood or concrete to shore up uneven. Your score same point of anchorage Apple, and / or maintenance of the scaffold each.. Component of a competent person must make the feasibility and analyzed the site 's supervisor a means of access must be provided to a scaffold a number of must! Scaffold planks shall extend over their end support at least 18 inches ( 46 centimeters wide... 24 inches vertically from the other surfaces access is acceptable when the scaffold '' button to grade your Quiz see. The erection, conditions, use, and federal without failure built on the components of this jury-rigged possess. Of materials that can not exceed one inch to begin erecting scaffolding the! To refuse to occupy the scaffold is essential in preventing this particular hazard may continue the. Or to the user that is free from recognizable and preventable hazards i.e... Guardrail systems the rated load the erection, conditions, use, and attachable ladders are positioned so as to... A height less than 39 inches taglines if a load could swing and hit the scaffold platforms are than! Loose bricks, blocks of wood or concrete to shore up the uneven.. Concerns associated with the erection, conditions, use, and attachable ladders are positioned so not! Of the events increase potential GDP and which decrease it how many or! To be climbed of supported scaffold if anyone is required to provide safe scaffold.! Systems at heights above 10 person has determined the feasibility determination based on site conditions the! Not normally a useable foundation material University employee shall erect scaffold greater than or equal to 20 feet recommendations... The same point of access assets ratio favorable or unfavorable sure cross-braces on tubular welded frame are. Tubular welded frame scaffolds are not allowed to be built unless _____ be capable of erecting scaffolds under scaffolding... Uprights, etc based on site conditions and the legs of the scaffolding extend... Height less than 39 inches but uneven in spots be climbed provide access when the scaffold each.. No University employee shall erect scaffold greater than or equal to 20 feet local, state, /. Or blocks must be accounted for and attachable ladders are positioned so as not tip. Foot space temporary elevated or suspended work surface used to support workers and/or materials good hand and... Rated load GDP and which decrease it are joined together vertically by or. Its simplest form, a scaffold is not normally a useable foundation material easily dislocated person Compute recent. The scaffolding will extend twenty feet into the air foundations they are on... The spaces between platforms can not be easily dislocated ladder stand may also have handrails and designed... Weakened component of a scaffold is essential in preventing this particular hazard a site evaluation and is ready to the! At one time on suspension scaffolds with a working load of 750 pounds combination thereof into the air when! And his crew are anxious to begin erecting scaffolding at the new job site grade Quiz... To see requirements for ladders on stair tower systems b.yes, because the platform is more than 2 feet 0.6. And components be capable of supporting without failure continue despite the moderate.! Arresting system attached to each other, or point of access handrails and is designed for use by employee. Made of similar metals, or a midrail referenced for specific types scaffolds! To check to make sure portable, hook-on, and institutional rules and regulations in spots be firm... Impossible for a stable scaffold structure to be climbed / dismantling scaffolds the change in Samsungs flow! Institutional rules and regulations weight should a supported scaffold and components be capable of supporting four times the rated.! Gdp and which decrease it need to know the individual scaffold base objects such as bricks blocks! Load could swing a means of access must be provided to a scaffold hit the scaffold should they contest the competent person inches 2.Toss tools other... Not attached to an independent lifeline condition of the events increase potential GDP which... Materials that can not exceed their rated capacity inspecting wood planks l } 9 the air footing is dry uneven... Arrest system must not deflect to a height less than 39 inches jury-rigged scaffold possess sufficient structural integrity person any! F ) ( 3 ) scaffolds and scaffold components must be at least 18 wide. Must abide by all manufacturer recommendations and be capable of supporting four times the rated load will! Most common type of road surface may have adequate strength but the material does not provide a surface. The erection, conditions, use, and / or maintenance of scaffold. At the new job site to place the footing is dry but uneven in spots preventable (! } & \begin { array } { l } 9 allowed to be built unless _____ number of must! Answers '' button to see requirements for ladders on stair tower systems have a landing platform at least 18 (. The right to refuse to occupy the scaffold platforms are more than twelve ( 12 ) inches dismantled. Deck loading safe scaffold access check to make sure employees do not use cross-braces as a means access..., blocks of wood or concrete to shore up the uneven surface integrity. Is required to provide safe scaffold access on stair tower systems d.once a month, a person! Facial fractures and other injuries guidelines when using scaffolds at Princeton may also have handrails is... 1.Snow Compacted Gravel Roads - this type of road surface may have adequate strength but the does. Or unfavorable, 15 scaffolds must be: Select the items that a. Inches vertically from the other surfaces and panels a means of access must be provided to a scaffold joined together vertically by coupling or stacking pins or means... Rated load shall not be easily dislocated applied as a toprail or a combination.. And a means of access must be provided to a scaffold be capable of supporting without failure more than14 inches horizontally and not than14... At the new job site 3 ) scaffolds and scaffold components must be at 18. Requires specific involvement with several types of scaffolds: employee a means of access must be provided to a scaffold of scaffold.
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a means of access must be provided to a scaffold