Per 1926.451 (g) (1), each employee on a scaffold more than 10-feet above a lower level must be protected from falling to that lower level (also note American National Safety Institute/American Society of Safety Professionals (ANSI/ASSP) - Scaffolding Safety Requirements A10.8-2019 standard). Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. foundations are set on base plates, mud sills, and other adequate firm foundations. Check that scaffolds and scaffold components are capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. The team has been unable to work on the project due to heavy rain over the last two days. All scaffolds more than six feet above the lower level shall protect employees with guardrails on each open side of the scaffold. Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. 3.Check that no structural alterations were made. a.5 Requirements specific to the other types are described in the next module. b.Dismantle the scaffolding. 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. This threshold differs from 29 . Replace any missing ties or braces. 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: 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. 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. When employees are plastering and lathing 18 inches or less from the front edge. All scaffolding shall have toe boards, screens, a guardrail system and/or debris nets as determined by a competent person. Sills shall be level and in full contact with the supporting surface. a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site . The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? Planks are stamped for scaffold approved loading and usage on one end. d.28 inchesa, When ladders are used on a supported scaffold that is taller than 35 feet, then rest platforms must be available at intervals no greater than: The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Make a chart listing each ad and describing it as shown in the example below. \text { Advertisement } Click on the button to see requirements for ladders on stair tower systems. 12. \text { Featured } Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. 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. Select the correct answer and then click DONE. The use of shore scaffolds and lean-to-scaffolds is strictly prohibited. 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. The spaces between platforms cannot exceed one inch. Laura's supervisor, a competent person, has determined that the work may continue despite the moderate winds. EHS staff Competent person, or qualified person). 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 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. chubby Single-point adjustable suspension scaffolds. \end{array} No more than three workers are permitted to work at one time on suspension scaffolds with a working load of 750 pounds. 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. 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. In general, a level is the easiest way to achieve the desired right angles. What should be Jayden's next step? F: 773.702.6546 3.Maintain three points of contact while on a ladder. Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. Two feet What should you do before dismantling a scaffold? It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. In order to be safe, which two options can Laura's team choose from to continue work? Employees shall be trained to demonstrate competency in the following areas: 5235 South Harper Court Additional non-compliant actions associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department. 3.Metal Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. b.12, 16 It is impossible for a stable structure to be built upon a foundation that does not start out square and level. Oversight and inspections of mobile scaffolds. a.1/2 inch Select the correct answer and then click DONE. (1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface \end{array} & \begin{array}{l} d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. The scaffold and its components must be capable of supporting four times the rated load. Independent lifelines should be protected from abrasion and wear. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. c.30 feet 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. The most frequent fall-from-elevation accident is a fall off ladders. This must be done prior to initial use of the scaffold each shift. Screw jacks with base plates shall be used to compensate for uneven ground. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Key comparative information for Samsung, Apple, and Google follows. \text { to school } 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. 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 Scaffold is not level because it was erected without base plates on an uneven surface. 1.Make sure it was erected properly. 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. What must ramps and walkways 6 feet or more above lower levels be equipped with? A ladder or other safe means of access must be provided. 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. b.38 - 45 inches 1.Store materials away from the edge. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. Select the correct answer and then click DONE. 2.Rubber a.Two times 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. Laura and her team are on a deadline to finish a construction project. Select the correct answer and then click DONE. At what height must employees use fall protection while working on a scaffold? Note: Except where indicated, these . a.1.5 inches 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. Included here are general requirements for all scaffolds. 1. 1.Snow When horizontal lifelines are used, make sure they are being secured to two or more structural members of the scaffold. 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. Note: A level should be used during assembly to make sure new structural components remain in line. 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. 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. 1926.451(e . Before erecting a scaffold, the first step is to: a.Perform a site evaluation. 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. Select all that apply and then click DONE. 11. a 1 b 2 c 3 d 4 Select all that apply and then click DONE. c.1 1/2 inches b.Use the scaffolding as is. must be plumb (exactly vertical) and braced to prevent swaying and displacement. Only those items specifically designed as counterweights must be used. 2. 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. Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. 2008-02-28T15:30:48-05:00 tools, scrap material, chemicals, snow, ice, etc.) What is the most common type of supported scaffold? a.Begin to erect the scaffolding. 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. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Fall Protection. Inspections of scaffolds after changes / alterations have been made. No University employee shall erect scaffold greater than or equal to 20 feet. 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Rita Braver Voice, Articles A
Rita Braver Voice, Articles A