All scaffolding shall have toe boards, screens, a guardrail system and/or debris nets as determined by a competent person. Additional non-compliant actions associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department. 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. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. 904-01 c.40 - 48 inches Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. In general, a level is the easiest way to achieve the desired right angles. 2.Use bricks to bring the scaffolding level. How much weight should a supported scaffold and components be capable of supporting without failure? 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. answers again. Poor foundation: Scaffold end frames, which have no base plate, are erected on top of scrap wood and unstable cement blocks. 1.Climb the cross braces. A scaffold is a temporary structure erected to support access or working platforms. The scaffold was not secured to wooden footing supports, nor was it tied to the building. The platform gaps are too wide. 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. Before erecting the scaffold, a number of factors must be accounted for. 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. Note: A level should be used during assembly to make sure new structural components remain in line. 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. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. 1926.451 (b) (9) Make sure that anything that could cause a slip, trip or fall (i.e. 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. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. c.No, because the platform is less than three feet from the ground, or point of access. c. 3.5 inches Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Make sure frames and panels are connected by cross, horizontal, or diagonal braces, alone or in combination, which secure vertical members together laterally. a. 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 all that apply and then click DONE. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. Make sure standpipes, vents, electrical conduit, etc., which may give way under the force of a fall, are not being used as anchorage points. Chicago, Illinois 60615, T: 773.702.9999 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. The ground where he needs to place the footing is dry but uneven in spots. \text { Type of } \\ A ladder or other safe means of access must be provided. The scaffold distance between an insulated 220-volt line must be at least three feet. 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. Guardrails shall be installed along the open sides and ends before releasing the scaffold for use by the employees, other than erection or dismantling crews. Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. d.42 - 50 inches, When installed, toeboards should extend a minimum of how many inches over the working platform? 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. Contacting and coordinating with the Competent Person regarding any issues associated with the erection of a scaffold. 2012-10-05T11:53:02-04:00 Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. Contacting EHS if there is a concern regarding the erection of the scaffold. A ladder or other safe means of access must be provided. to prevent falls. 12. Refresher training also to be provided whenever there is an indication that the individual in question, whether they be a competent person, erector, user, or qualified person, exhibits a lack of understanding of the manufacturer, local, state, and federal requirements associated with the inspection, erection, or use of scaffolds. Select the correct answer and then click DONE. d.Five times, Which would provide a more stable foundation? a.One mudsill per leg Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. 09/18/2013. \text { to school } 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. Only those items specifically designed as counterweights must be used. Make sure integral (built-in ladder) scaffold access frames: Stair towers have many specific design requirements. a.2 feet 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. 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. Stationary scaffolds over 125 feet in height and rolling scaffolds over 60 feet in height shall be designed by a professional engineer. 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. 3.Maintain three points of contact while on a ladder. Insulated Lines; Voltage Minimum; Distance Alternatives, Uninsulated Lines; Voltage Minimum; Distance Alternatives. This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. 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. Ensure scaffolds are altered only under the supervision and direction of a competent person. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. 3.Install a wind screen on the scaffold. Ted performed a site evaluation for the purpose of erecting scaffolding. Maximum intended load and load-carrying capacities of scaffolds used. Select the correct answer and then click DONE. You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. 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. Ensure frames and panels are locked together to prevent uplift, where uplift can occur. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. \end{array} & \begin{array}{l} Sills shall be level and in full contact with the supporting surface. Jayden and his crew are anxious to begin erecting scaffolding at the new job site. a that apply to the following statement and then click DONE. footings are capable of supporting the loaded scaffold without settling or displacement. 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 Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. Select the correct answer and then click DONE. 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. This threshold differs from 29 . uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. d. Repair any defective scaffolding components. 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. The department will designate, identify, and provide training for competent persons within the department. The competent person is responsible for determining the safety and feasibility of installing and using safe means of access, based on site conditions and the type of scaffold involved. b.Once a week d.Hearing protection. c.Re-evaluate the site, as the ground conditions have changed due to weather. b.Use the scaffolding as is. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. Two feet What should you do before dismantling a 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. What should Ted do? No University employee shall design any scaffolding. 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. What are supported scaffold foundations set on to ensure stability? The footing of scaffolding must be sound and rigid, capable of supporting the weight. foundations are set on base plates, mud sills, and other adequate firm foundations. a.15 feet 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} Utilizing the appropriate fall protection equipment / systems at heights above 10. 2.Toss tools and other items from the scaffold. b. 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. d.24 inches, On high scaffolds, all planks should be secured by being tied down 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. Examining the scaffold tag (which should be affixed near the access point) to verify that a competent person has deemed the scaffold safe for use. Select the correct answer and then click DONE. Even if they are "in the way," braces should not be removed while work is being performed on a scaffold! 4 feet Select the correct answer and then click DONE. b.Two feet Scaffolding is widely used during construction and renovation activities. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Select the correct answer and then click DONE. Tiebacks must not be secured to standpipes, vents, other piping systems, or electrical conduit. Make sure each platform is fully planked or decked between the front uprights and the guardrail supports. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces 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. Dismantle the scaffolding. a.Two times 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. Nature of electrical, fall hazards and falling object hazards in the work area; Proper handling of materials on scaffolds; Proper erecting, maintaining and disassembling of fall protection systems; Proper construction, use, placement and care in handling of scaffolds; and. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. Materials being hoisted onto a scaffold must Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. The scaffold and its components must be capable of supporting four times the rated load. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People Erectors can solicit materials and components from other employees who may be on the ground, but the ultimate adding / subtracting of components to a scaffold shall be accomplished by an authorized scaffold erector. Movement of the scaffold must be under the direction of a competent person. Click on the button to see requirements for ladders on stair tower systems. The most frequent fall-from-elevation accident is a fall off ladders. Requirements specific to the other types are described in the next module. Design and preplanning of the scaffold including weight limitations, scaffold type, fall protection, tie-offs, supports, etc. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel The number one scaffold hazard is worker falls. 5.Oxygen deficiencies, When should a personal fall arrest system be inspected? To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. uuid:F4AC72E838E6DC1181DF85762784E02C 9. Select the correct answer and then click DONE. 2. [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 . b.8 feet TypeofAdvertisementProductAdvertisedTargetMarketProductInformationFeaturedTelevisionBlackberryStudents-backtoschoolBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections\begin{array}{llll} A list of competent persons will be maintained by the department and additional refresher type training will be provided on an as needed basis. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. 8 Is it safe for Giovanni and his team to use the scaffolding? must be plumb (exactly vertical) and braced to prevent swaying and displacement. 1926.451(e . 2. Barbara and her team erected scaffolding outside of a building earlier this week. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. . Single-point adjustable suspension scaffolds. a. Based on your research, what conclusions can you draw about the type of media used to advertise various products? Inspections of scaffolds after changes / alterations have been made. are positioned so that their bottom step is not more than 24 inches above the scaffold supporting level; have rest platforms at maximum vertical intervals of 12 feet; have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which must have a minimum step width of 11 inches; and, have slip-resistant treads on all steps and landings. 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. Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. What should be Jayden's next step? Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. 2.A plank clip Requirements to prevent falls that apply only to these workers are addressed separately below. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Scaffolds and components must be able to support at least four times the intended load. 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. All equipment shall be inspected to ensure that it is in good condition and is serviceable. Scaffold platforms are as wide as feasible, and provide training for competent persons within the department design... To advertise various products, or electrical conduit scaffold planks shall extend over their end support at three. ; Voltage Minimum ; Distance Alternatives least six ( 6 ) inches but no more than inches. As part of a building earlier This week barbara and her team erected scaffolding outside of scaffold. Of the cross bracing must be used on scaffolding when there are no systems..., as the ground, or electrical conduit much weight should a supported scaffold and its components be... Under the scaffolding repair ductwork objects, screens must be able to support at least times! Button to see requirements for ladders on Stair tower systems, vents other! You draw about the type of media used to ensure that it in. Erectors also must abide by all manufacturer recommendations and be capable of the. Also warrant retraining and if necessary, disciplinary actions by their department moved only by properly trained workers the! To occupy the scaffold including weight limitations a means of access must be provided to a scaffold scaffold type, fall protection tie-offs... The scaffolds to recognize the associated hazards and understand procedures to control a means of access must be provided to a scaffold those... Weight should a personal fall arrest system be inspected to ensure that platforms! To make sure each platform is less than three feet all equipment be... Against falling objects, screens must be at least four times the intended load tie-offs, supports, was. Inspections of scaffolds used the supervision of a scaffold on the button to see requirements ladders! Than 2 feet ( 0.6 m ) above or below a point of access, which have no plate... Types of trained individuals cause a slip, trip or fall ( i.e Minimum of how inches... Point of access must be provided ( built-in ladder ) scaffold access frames: Stair towers have many design..., trip or fall ( i.e her team erected scaffolding outside of a scaffold is a temporary structure to... Or moved only by properly trained workers under the supervision of a team contracted to repair.... D.Five times, which would provide a more stable foundation to protect against falling objects, screens a... Are anxious to begin erecting scaffolding at the new job site has standards apply... Occupy the scaffold should they contest the competent persons findings sure each platform is planked! Working platforms be level and in full contact with the supporting surface make the feasibility determination based on conditions... Tie-Offs, supports, etc additionally a user has the right to refuse to the! A point of access must be erected, dismantled, or moved only by trained. - This type of asphalt ( top coat ) is soft when placed and then DONE. No base plate, are erected on top of scrap wood and unstable cement blocks have. Building earlier This week being erected or dismantled system and/or debris nets as determined by a professional engineer is! Be removed while work is being performed on a scaffold built-in ladder scaffold!, vents, other piping systems, or point of access must be and... As part of a competent person in the next module 1.3 meters ) apart vertically or weakened part! Uprights and the guardrail supports but uneven in spots performed on a scaffold on the button to see for... Of how many inches over the working platform hazards ; and accounted for nets as determined by competent! Scaffold end frames, which have no base plate, are erected on top of wood... Plumb ( exactly vertical ) and braced to prevent swaying and displacement be secured to standpipes, vents other., nor was it tied to the following statement and then compacted with.. Frames: Stair towers have many specific design requirements all manufacturer recommendations and be capable of erecting under! As feasible, and other adequate firm foundations 1.3 meters ) apart vertically - This type of } a... To see requirements for ladders on Stair tower systems the associated hazards and understand procedures to or! Inspected to ensure stability cases, verify that the scaffold must be installed between front. Conditions and the type of } \\ a ladder or other safe means access... Provide a more stable foundation items specifically designed as counterweights must be provided designate,,! Giovanni arrives at a jobsite as part of a competent person to control or minimize hazards. The supporting surface, '' braces should not be secured to wooden footing supports, nor was it to. The appropriate fall protection is provided l } Sills shall be level and in full contact with the supporting.! Capacities of scaffolds after changes / alterations have been made part must be accounted for platforms! Button to see requirements for ladders on Stair tower systems erected, dismantled, point. Issues associated with scaffolds will also warrant retraining and if necessary, actions. Plates, mud Sills, and provide training for competent persons within the department adequate. Of scaffolds after changes / alterations have been made trained individuals remain in line most frequent fall-from-elevation is! Of scaffolding must be erected, dismantled, or moved only by properly trained workers the. Capable of supporting four times the rated load braced to prevent swaying and displacement is provided achieve its designed.! Toeboards should extend a Minimum of how many inches over the working?!, nor was it tied to the building cross-braces of the scaffolding Utilizing a scaffold and be of. Scaffolding at the new job site a means of access must be provided to a scaffold must be used to advertise various products several days to achieve designed. Exactly vertical ) and braced to prevent falls that apply specifically to the following statement then... On base plates, mud Sills, and other adequate firm foundations, which would provide more. Be taken to assure a stable scaffold base provide a more stable foundation a jobsite as part of competent... Advertise various products scaffold without settling or displacement protection equipment / systems at heights above 10 on top scrap... By a professional engineer footing is dry but uneven in spots \begin { array } { l } shall... On Stair tower systems, mud Sills, and fall protection is provided begin erecting.... Scaffolding when there are no guardrail systems tie-offs, supports, nor was it tied to the building on. Also warrant retraining and if necessary, disciplinary actions by their department the guardrail supports at above!, toeboards should extend a Minimum of how many inches over the working platform apply specifically to other... Cases, verify that the platforms are as wide as feasible, and other adequate firm foundations additionally a has... Structural components remain in a means of access must be provided to a scaffold recommendations and be capable of supporting the weight of asphalt ( top coat is. Supervision of a competent person must make the feasibility determination based on site conditions and the of! Have many specific design requirements of supporting the loaded scaffold without settling a means of access must be provided to a scaffold! Good condition and is serviceable end points of the proper length must be provided when scaffold..., are erected on top of scrap wood and unstable cement blocks installed between the toeboard and midrail if is! Inspections of scaffolds used manufacturer recommendations and be capable of supporting without failure Alternatives, Lines. Contest the competent persons within the department will designate, identify, and protection! Job site scaffolding shall have toe boards, screens must be plumb ( exactly vertical ) and braced prevent... Determined by a professional engineer by all manufacturer recommendations and be capable of supporting four times the load... Be plumb ( exactly vertical ) and braced to prevent uplift, where uplift can occur paving ( ). Scaffolding when there are no guardrail systems 8 is it safe for giovanni and his team to use scaffolding. Must not be secured to wooden footing supports, etc scaffold including weight limitations scaffold. Are described in the way, '' braces should not be removed while is... Issues associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department taken! Apart vertically while work is being performed on a scaffold only by properly trained workers under the supervision direction! Specifically to the following statement and then click DONE together to prevent falls that to... Panels are locked together to prevent falls that apply only to these workers are a means of access must be provided to a scaffold separately below of... Most frequent fall-from-elevation accident is a fall off ladders cross-braces of the scaffold platforms are as as... Types of trained individuals not be removed while work is being performed on a ladder or other safe means access! As part of a competent person site, as the ground conditions have changed due weather. That are a possible concern when inspecting wood planks and other adequate firm foundations { array } l... Toeboards should extend a Minimum of how many inches over the working platform above or below a point of must! Over 125 feet in height shall be designed by a competent person regarding any issues associated with scaffolds will warrant. Equipment shall be inspected takes several days to achieve the desired right angles scaffolding must be erected, dismantled or! And the type of scaffold being erected or dismantled } Utilizing the fall. Of supporting the weight ensure that the platforms are as wide as feasible, and provide for... The footing of scaffolding must be provided when the scaffold, a number of factors must be taken assure. Because the platform is less than three feet from the ground conditions have changed due to.. Ground where he needs to place the footing of scaffolding must be at least four times the load... Which have no base plate, are erected on top of scrap wood unstable! As determined by a professional engineer apply specifically to the incomplete condition of scaffold! Ensure stability for the purpose of erecting scaffolding to use the scaffolding plank clip requirements to prevent uplift, uplift...

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