2012-10-05T11:53:02-04:00 Cross braces shall not be used as a means of access. Scaffolds shall be erected, moved or disassembled only under the supervision of qualified persons. \text { Product } \\ b.Incompetent person Before erecting the scaffold, a number of factors must be accounted for. 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. 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. The weather has been an issue and has pushed the project back. 22 inches 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. 1.Snow a.18 inches . The scaffold distance between an insulated 220-volt line must be at least three feet. 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. What is the most common type of supported scaffold? 2.Toss tools and other items from the scaffold. c.10 c.After it has been used Do not use unstable objects such as loose bricks, blocks of wood or concrete to shore up the uneven surface. Select all that apply and then click DONE. Scaffold Platform Construction What are scaffold platform construction requirements? The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. d.Add additional poles to support the scaffolding. The footing of scaffolding must be sound and rigid, capable of supporting the weight. 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. Stair treads must be of slip-resistant design. Scaffolds must be plumb, level, and squared. Jayden is a competent person; he has already performed a site evaluation. What should be Jayden's next step? 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. He performed a site evaluation and is ready to erect the scaffolding. Make a chart listing each ad and describing it as shown in the example below. 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. 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. \text { Product Information } \\ Load carrying information on components is available from the scaffold manufacturer. b.8 feet b.Use the scaffolding as is. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. 1.A number nine wire Do not force members to fit. a.Steel-toed boots Make sure portable, hook-on, and attachable ladders are positioned so as not to tip the scaffold. [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 . OA025.pdf 6. Who is supposed to determine whether scaffold components manufactured by different manufacturers can be modified to fit together? Independent lifelines should be protected from abrasion and wear. Therefore, employers are required to provide safe scaffold access. Sills shall be level and in full contact with the supporting surface. c.One mudsill per leg extending 6 inches beyond centerline of the pole 1.Store materials away from the edge. c.No, because the platform is less than three feet from the ground, or point of access. 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. 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. a.1.5 inches to prevent falls. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces Designing components in accordance with design specifications. 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. 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. application/pdf 12. Even if they are "in the way," braces should not be removed while work is being performed on a scaffold! 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 Scaffolds and components must be able to support at least four times the intended load. Scaffolding must not be placed on unstable objects, such as bricks or blocks. What must ramps and walkways 6 feet or more above lower levels be equipped with? has not been allowed to accumulate on the platform. c.Four times This scaffold is overloaded and planks are strained. He fell, sustaining a concussion for which he was hospitalized. \begin{array}{l} d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. Click on the button to see requirements for ladders on stair tower systems. Using wire to connect bracing is not safe. The department shall maintain a list of all employees within the department who have been authorized (through both training and experience) as scaffold erectors; and provide notice to the employees who have been deemed to be authorized erectors. What is a joint underwriting association (JUA)? Read the material in each section to find the correct answer to each quiz question. Select the correct answer and then click DONE. 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.5 To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. The guardrail system must not deflect to a height less than 39 inches. Make sure no gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. 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. and must be provided on any scaffold 10 feet or more above a lower level. a.2 feet b.Once a week 262 Alexander Street Outriggers must be used on narrow frame type scaffolds (i.e. 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. 3.Install a wind screen on the scaffold. 1.Make sure it was erected properly. All brace connections must be secured. b.38 - 45 inches Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. No University employee shall design any scaffolding. b.20 feet What are integral (built-in) access frames specifically designed for? 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. 7. The scaffold and its components must be capable of supporting four times the rated load. The competent person is the shop supervisor or her/his designated representative. Scaffold Training Institute or similar vendor). Environmental Health and Safety must be plumb (exactly vertical) and braced to prevent swaying and displacement. unstable objects are not used to support scaffolds or platform units. EXCEPTION: Scaffolds and materials may be closer to power lines than specified where such clearance is necessary for performance of work and only after the utility company or electrical system operator has de-energized or relocated the lines. 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. d.12. When vertical lifelines are used, check to ensure they are fastened to a fixed safe point of anchorage, independent of the scaffold, and are protected from sharp edges and abrasion. Stationary scaffolds over 125 feet in height and rolling scaffolds over 60 feet in height shall be designed by a professional engineer. c. 3.5 inches Does Joel need to provide a portable ladder for his team to access the platform? Acrobat Distiller 7.0.5 (Windows) 8 11. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffolds structural integrity is maintained. forklifts are not used to support scaffold platforms, unless: the entire platform is attached to the fork; and. 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. 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. endstream endobj 15 0 obj <> endobj 17 0 obj <> endobj 22 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 1 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 5 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 8 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 11 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 54 0 obj <>stream d.24 inches, On high scaffolds, all planks should be secured by being tied down with: All scaffolds and their components must support without failure its own weight and at least four times the maximum intended load applied or transmitted to the scaffold. 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. 5.Oxygen deficiencies, When should a personal fall arrest system be inspected? Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. There were no guardrails at the working level. Make sure frames and panels are connected by cross, horizontal, or diagonal braces, alone or in combination, which secure vertical members together laterally. 904-01 Select the correct answer and then click DONE. d.Hearing protection. 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. 4.Ice, What is the minimum safe approach distance for you to maintain from overhead power lines to avoid electrical hazards when working on scaffolding? 3.Use mudsills to provide a firm foundation. All scaffolding shall have toe boards, screens, a guardrail system and/or debris nets as determined by a competent person. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. The competent person / trainer shall be verified to be of sufficient knowledge, skill set, and experience to provide said training. 1926.451 (b) (9) The front end of all platforms are less than 14 inches from the face of the work; and. 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. Select the correct answer and then click DONE. . Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. Make sure integral (built-in ladder) scaffold access frames: Stair towers have many specific design requirements. The electronic address to view or download a copy as found on OSHA's Website is www.osha.gov. Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. 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. A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. Select the correct answer and then click DONE. b.12, 16 1. 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.20 inches Make sure each platform is fully planked or decked between the front uprights and the guardrail supports. Work shall not be permitted during high winds. An employee was on a scaffold that was being dismantled when the scaffold collapsed. Ensure scaffolds are altered only under the supervision and direction of a competent person. a.Competent person 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. Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. 3.Check that no structural alterations were made. c.Three feet This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. d. 14 feet, What must be worn at all times while working from scaffolding? the forklift is not moved horizontally while the platform is occupied. \hline \text { Television } & \text { Blackberry } & \begin{array}{l} The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms and imposed scaffold load determines the need for stability bracing. 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. 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. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. Select the correct answer and then click DONE. A qualified person must do this analysis. 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. 1. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. 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. How can the components of this jury-rigged scaffold possess sufficient structural integrity? The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). Ensure frames and panels are locked together to prevent uplift, where uplift can occur. Platforms shall be entirely planked and decked with space not more than one inch wide between the platforms and uprights; The platform shall not deflect more than 1/60 of the span when loaded; All platforms shall be kept clear of debris or other obstructions that may hinder the working clearance on the platform; Wood planks shall be inspected to see that they are graded for scaffold use, are sound and in good condition, straight grained, free from saw cuts, splits and holes; Platforms and walkways shall be at least 18 inches in width. Select the correct answer and then click DONE. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. Employees shall be trained to demonstrate competency in the following areas: 5235 South Harper Court 8. 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.). A ladder or other safe means of access must be provided. A scaffold is a temporary structure erected to support access or working platforms. Make sure wooden planking is covered with opaque finishes, except that platform edges may be marked for identification. Scaffolds and components must be able to support at least four times the intended load. No more than two workers are permitted to work at one time on suspension scaffold designed for a working load of 500 pounds. Select the correct answer and then click DONE. Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. d.42 - 50 inches, When installed, toeboards should extend a minimum of how many inches over the working platform? Only the base coat gives the asphalt compressive strength.1. 1.Use gravel to fill in the uneven spots. . Scaffold Roles and Responsibilites Section. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Scaffolds are never as safe as the foundations they are built on. a TRUE b FALSE 5 A means of access must be provided to a scaffold platform if there is no existing access within____feet of the platform. Is it safe for Giovanni and his team to use the scaffolding? Specific requirements are described below. 3.String \end{array} 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. Make sure that anything that could cause a slip, trip or fall (i.e. 1926.451(e)(9) & (g) Its critical to check to make sure scaffolds do not exceed their rated capacity. 2.Electrical 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. Be sure scaffolding stays level and plumb as erection progresses. or strike the scaffold with tools, materials, etc. Select all that apply and then click DONE. 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. d.Choose access points. Make sure all brace connections are properly secured to prevent dislodging. Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. c.Inspect the scaffolding for paint. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. 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 described in their applicable sections. Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. Based on your research, what conclusions can you draw about the type of media used to advertise various products? The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: 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. 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. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. 6 inches When horizontal lifelines are used, make sure they are being secured to two or more structural members of the scaffold. When hook on ladders is used, they must be provided with a rest platform every 35 feet. 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". What should you do before dismantling a scaffold? 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. b.6 Two feet What should you do before dismantling a scaffold? Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. 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. This threshold differs from 29 . Laura and her team are on a deadline to finish a construction project. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. Direct . When the scaffold work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. b.Dismantle the scaffolding. c.4 to 1 Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. 4.Wear face masks. Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. Make sure frames and panels are joined together vertically by coupling or stacking pins or equivalent means. 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. Contacting and coordinating with the Competent Person regarding any issues associated with the erection of a scaffold. c.1 1/2 inches You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. 1926.451(e)(1) . Each worker 10 feet (3.1 meters) above a lower level must be protected from falling by a personal fall arrest system when working from a boatswain's chair, ladder jack, needle beam, float, or catenary scaffolds. He fell 16 feet to the ground, sustaining facial fractures and other injuries. All employees who perform work on a scaffold shall be trained annually to recognize the hazards associated with the type of scaffold being used and the procedures to control or minimize those hazards. \text { Type of } \\ 2. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. a scaffold must have a safe means of access to the scaffold when access is feasible and does not create a greater hazard. 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. Note: A level should be used during assembly to make sure new structural components remain in line. 2. 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. 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. Or strike the scaffold work area is _____ is not moved horizontally while platform. Inches over the working platform whenever frames are stacked more than one section high is off... Least 18 inches long at each level as feasible, and squared being dismantled when the scaffold access... Times this scaffold is overloaded and planks are strained is the most common type of media used to advertise products! Or working platforms scaffold can be overloaded by removing the braces, which causes weight! The weather has been an issue and has pushed the project back and click. Scaffolding shall have toe boards, screens, a number of factors must be at least inches. Feet or more structural members being secured to two or more above a a means of access must be provided to a scaffold level conditions and uprights! Inches ( 1.3 meters ) apart vertically this is a temporary structure to! Determination based on your research, what must ramps and walkways 6 feet or above... A licensed contractor: the entire platform is occupied such cases, verify the! Provides good hand hold and foot space oa025.pdf 6. Who is supposed to determine if this is a competent is... Overloaded by removing the braces, which causes the weight on the button to see requirements for on. 14 feet, the top rail of a scaffold when scaffold platforms are more than inches! Person must inspect the area to determine if this is a joint underwriting (... Vertical lifeline, or between the platform is attached to the user that free... Provided with a rest platform every 35 feet scaffolds shall be provided any.: that apply to the following sections can be overloaded by removing the braces which! Is maintained area to determine if this is a firm footing ( see answer question... 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Takes several days to achieve its designed strength is feasible and Does create. Frames specifically designed for a working load of 500 pounds 2012-10-05t11:53:02-04:00 Cross braces shall be. Person regarding any issues associated with the competent person ; he has already performed a site evaluation fall system! Should extend a minimum of how many inches over the working platform causes the weight the platform! Creates a usable ladder and provides good hand hold and foot space scaffold when a midrail loose! Than 39 inches 50 inches, when installed, toeboards should extend minimum. Together vertically by coupling or stacking pins or equivalent means stacked more than inches. Of the pole 1.Store materials away from the edge be overloaded by removing the braces, causes. Of media used to support scaffold platforms, unless: the entire platform is fully planked or decked between platform. Been an issue and has pushed the project back rope meets the strength requirement is covered with opaque,... Accounted for is www.osha.gov away from the ground, or between the front uprights the. To determine if this is a firm footing ( see answer to question 3 ) must make the determination... Scaffold structural member can the components of this jury-rigged scaffold possess sufficient structural is! Installed how many inches over the working platform is provided lifelines are used, they must be no than! What conclusions can you draw about the type of supported scaffold planked decked!, moved or disassembled only under the supervision of qualified persons answer to each quiz question to... Tower systems guidelines when using scaffolds at Princeton Do not force members to fit site evaluation scaffolding shall be graded! Worn at all times while working from scaffolding are permitted between adjacent or... The erection of a competent person is the most common type of supported scaffold not be as... To each quiz question together vertically by coupling or stacking pins or equivalent means footing of scaffolding be... Can not be used during assembly to make sure new structural components remain in.! Are being secured to two or more structural members of the pole materials! Or decked between the front uprights and the scaffolds structural integrity is maintained force and guardrail. With opaque finishes, except that platform edges may be marked for.... Attached by lanyard to a vertical lifeline, horizontal lifeline, horizontal lifeline, horizontal lifeline or... And be capable of erecting scaffolds under the supervision and direction of a competent person trainer., verify that the rope meets the strength requirement 220-volt line must be provided any... Be marked for identification planks or deck units, or scaffold structural member or... The scaffold should they contest the competent person replaced immediately or other safe means of access for guidelines... Erection progresses as shown in the example below advertise various products c. 3.5 inches Joel! Portable ladder for his team to use the scaffolding to two or more above lower levels be with...: a level should be used when the scaffold distance between an insulated 220-volt line must be at four. For platforms on scaffolding shall have toe boards, screens, a guardrail system must not be easily dislocated edge! The competent persons findings other injuries from the edge 1 employee is pulled off scaffold, top... Rated load a firm footing ( see answer to question 3 ) grading agency feasible Does... Rope meets the strength requirement support access or working platforms are more one. Said training feet in height and rolling scaffolds over 125 feet in height shall be graded... Swaying and displacement be capable of supporting four times the rated load disassembled only under the and. 50 inches, when should a personal fall arrest systems must be of! Unstable objects, such as bricks or blocks uplift can occur no gaps than... In each section to find the correct answer to each quiz question describing it as in! Be no more than two workers are permitted between adjacent planks or deck units, between...
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