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. He suffered What are the main hazards associated with erecting, dismantling, and working on scaffolds? Rolling scaffold must not be used on sloped surfaces. Utilizing scaffolds in accordance with all local, state, federal, manufacturer, and institutional rules and regulations. An employee was on a scaffold that was being dismantled when the scaffold collapsed. 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. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). 13. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? a.Yes, because any height off the ground, or point of access, requires the use of a ladder or stairway. multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. 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. Using various forms of media, select three advertisements that target different markets. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Ensure each employee on a scaffold more than 10 feet above a lower level is protected from falling to that lower level. 22 inches At what height must employees use fall protection while working on a scaffold? To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. 8 inches d. No, because the height of the platform is easily accessed from the ground, When used, hook-on and attachable ladders must be positioned so that their bottom rung is not more than how many inches above the scaffold support level? Only the base coat gives the asphalt compressive strength.1. Make sure each platform is fully planked or decked between the front uprights and the guardrail supports. \text { Market } The footing of scaffolding must be sound and rigid, capable of supporting the weight. Select the correct answer and then click DONE. When hook on ladders is used, they must be provided with a rest platform every 35 feet. Maximum intended load and load-carrying capacities of scaffolds used. 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. Competent people shall only receive training from other competent people. Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, 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. 2.A plank clip 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. The scaffolding components are clearly from various manufacturers. 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. Select the correct answer and then click DONE. \text { Type of } \\ Click on the button to see requirements for ladders on stair tower systems. Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. b.Dismantle the scaffolding. b.Once a week 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. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. However, an evaluation of the deck for its maximum allowable loading would be required, since the decking or deck structure could fail under a full scaffold load. 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. d.42 - 50 inches, When installed, toeboards should extend a minimum of how many inches over the working platform? OSHA defines a mobile ladder stand platform as a mobile, fixed-height, self-supporting unit having one or more standing platforms that are provided with means of access or egress. 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 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. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Requirements to prevent falls that apply only to these workers are addressed separately below. d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: 3. a.2 feet Cross braces shall not be used as a means of access. 32 - 36 inches Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. Select the correct answer and then click DONE. Select the correct answer and then click DONE. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces 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. This scaffold is overloaded and planks are strained. Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. The platform gaps are too wide. Make sure frames and panels are joined together vertically by coupling or stacking pins or equivalent means. 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. Improper Access Leads to Serious Injuries. Training of other competent persons, scaffold erectors, and users. 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. 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. Employers must ensure that: Uplift is the separation of a frame from the frame below it. In general, a level is the easiest way to achieve the desired right angles. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. An access ladder or equivalent safe access must be provided. Direct . uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 d. Four feet. Based on your research, what conclusions can you draw about the type of media used to advertise various products? Make sure cross-braces on tubular welded frame scaffolds are not allowed to be climbed. Scaffolding eTool Home General Requirements Suspended Scaffolds Supported Scaffolds Scissor Lifts Aerial Lifts All Types Scaffolding General Requirements for Scaffolds [ 29 CFR 1926.451] Capacity What are the capacity requirements for all scaffolds? The guardrail system must not deflect to a height less than 39 inches. In order to be safe, which two options can Laura's team choose from to continue work? Screw jacks with base plates shall be used to compensate for uneven ground. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Its critical to check to make sure scaffolds do not exceed their rated capacity. 5.Use taglines if a load could swing and hit the scaffold. c.40 - 48 inches 4. He notices that there have been several large spills of paint over them. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Counterweights shall be secured by mechanical means to the outrigger beams. Tying, guying, or bracing may be needed to assure a safe and stable scaffold assembly. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. c.Three feet It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. Scaffolds and components must be able to support at least four times the intended load. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. Select the correct answer and then click DONE. 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. 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. 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. Using wire to connect bracing is not safe. Independent lifelines should be protected from abrasion and wear. 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. Plasterers, decorators and large area scaffolds; Step, platform and trestle ladder scaffolds; and. Do not force members to fit. Check hook-on and attachable ladders to be sure they are specifically designed for use with the type of scaffold on which they are used. 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. Systems must be used to advertise various products for ladders on stair tower systems if anyone required. 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