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". Ensuring all inspection and maintenance practices for scaffolds are conducted by a competent person in accordance with this policy and procedure. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. 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. Improper Access Leads to Serious Injuries. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. OA025.pdf Environmental Health and Safety is responsible for: Departments affected by this policy are responsible for: Employees affected by this policy are responsible for complying with the practices within the Scaffold Safety policy. 4.Chemical burns What are integral (built-in) access frames specifically designed for? Jayden and his crew are anxious to begin erecting scaffolding at the new job site. 2.Use bricks to bring the scaffolding level. \end{array} \\ You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. Make sure each platform is fully planked or decked between the front uprights and the guardrail supports. Screw jacks with base plates shall be used to compensate for uneven ground. Make sure that anything that could cause a slip, trip or fall (i.e. Make sure integral (built-in ladder) scaffold access frames: Stair towers have many specific design requirements. Select all that apply and then click DONE. 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. Replace any missing ties or braces. Acrobat Distiller 7.0.5 (Windows) c.Four times 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. Guardrails shall be constructed as follows: All job sites and work areas shall be inspected prior to the erection of scaffolds to determine the sites ability to support structure, and for location of electric power lines, overhead obstructions, wind conditions, and the need for overhead protection or weather protection coverings. He fell, sustaining a concussion for which he was hospitalized. PScript5.dll Version 5.2.2 09/18/2013. Inspections of scaffolds after changes / alterations have been made. F: 773.702.6546 Click on the button to see requirements for ladders on stair tower systems. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Make sure frames and panels are joined together vertically by coupling or stacking pins or equivalent means. Scaffold Roles and Responsibilites Section. 3. He performed a site evaluation and is ready to erect the scaffolding. Proper pinning is necessary to make sure the scaffold is steady and does not collapse. Ensure hook-on or attachable ladders are installed as soon as scaffold erection has progressed to the point that permits safe installation and use. Ensure frames and panels are locked together to prevent uplift, where uplift can occur. Compute the recent two years cash flow on total assets ratio for Samsung. The top edge height on supported scaffolds manufactured or placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 45 inches; When mid-rails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform; When mid-rails are used, they shall be installed at a height midway between the top edge of the guardrail system and the scaffold platform; When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports; When intermediate members are used, they shall not be more than 19 inches apart; Each top rail or equivalent member of a guardrail system shall be capable of withstanding a force of at least 100 pounds for systems on single-point adjustable suspension or two-point adjustable suspension scaffolds, and at least 200 pounds for guardrail systems installed on other scaffolds; When the loads specified above are applied in a downward direction, the top edge shall not drop below the height above the platform surface required above; Mid-rails, screens, mesh, intermediate vertical members, solid panels and equivalent structural members shall be capable of withstanding a force of at least 75 pounds for systems with a minimum 100 pound top rail capacity, and at least 150 pounds for systems with a minimum 200 pound top rail capacity; Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations and prevent snagging of clothing; The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard; Steel or plastic banding shall not be used as a top rail or mid-rail; Manila or plastic (or other synthetic) rope being used for top rails or mid-rails shall be inspected by a competent person as frequently as necessary; and. Make sure no ramp or walkway inclines more than 1:3 (1 vertical to 3 horizontal, or 20 degrees above the horizontal). When employees are plastering and lathing 18 inches or less from the front edge. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. b.Three times Remove ties and braces. Direct access is acceptable when the scaffold is not more than14 inches horizontally and not more than 24 inches vertically from the other surfaces. Select the correct answer and then click DONE. Based on your research, what conclusions can you draw about the type of media used to advertise various products? Counterweights shall be secured by mechanical means to the outrigger beams. d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: Cross braces shall not be used as a means of access. Select the correct answer and then click DONE. 1. Manila or synthetic rope used for top rails must be inspected to ensure that the rope meets the strength requirement. Scaffolding is widely used during construction and renovation activities. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? c.20 inches Select the correct answer and then click DONE. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. All scaffolding shall be plumb and level. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. \text { Type of } \\ OSHA:Process Safety Management: Participation, Clinical Pharmacology Exam 2 - CHF & Angina, Elliot Aronson, Robin M. Akert, Timothy D. Wilson, Unternehemensfinanzierung in der EU und in de. 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. 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. Make sure two or more vertical lifelines are not attached to each other, or to the same point of anchorage. . 11. 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. 904-01 b.1 inch 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. 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. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Select the correct answer and then click DONE. 22 inches 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. uuid:F4AC72E838E6DC1181DF85762784E02C 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. 2. d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? 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. a. Before each use Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. b. 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. 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. This threshold differs from 29 . b. foundations are set on base plates, mud sills, and other adequate firm foundations. Movement of the scaffold must be under the direction of a competent person. HV[o6~8%9N(Km -QTI*CJe'{tC^nAieAi?Ypqvi;y5P( s!u 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. Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. Prior to occupation scaffold erectors must notify the competent person that the scaffold has been erected and is ready to be inspected. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. 1.Snow a. Dismantle the scaffolding. 3.Falling objects 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. 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. Key comparative information for Samsung, Apple, and Google follows. 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. Scaffolding in this Guide means the individual components, for example tubes, couplers Competent people shall only receive training from other competent people. 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. 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. 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. c.10 When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? b.18 inches A competent persons responsibilities include (but are not limited to): Scaffold erectors are those employees who have been designated (based on training and experience) by the department to be the employees who are responsible for the erection and maintenance of department scaffolds on the Princeton University campus. There are many types of scaffolds, both supported and suspended. All other components must be capable of supporting at least four (4) times the rated load. 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. Scaffold Training Institute or similar vendor). b.20 feet d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. Specific requirements are described below. What should Ted do? The team has been unable to work on the project due to heavy rain over the last two days. The scaffolding components are clearly from various manufacturers. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. c.13, 15 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. Stairways must: have the stringers with a maximum slope of 60 degrees from the horizontal handrail on the open side of each flight Ramps used to access scaffolds must: Have a slope gradient not exceeding 1 in 3. Oversight and inspections of mobile scaffolds. a. \text { Advertised } 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. Chicago, Illinois 60615, T: 773.702.9999 Select all that apply and then click DONE. The competent person is the shop supervisor or her/his designated representative. b.2 inches or strike the scaffold with tools, materials, etc. Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. A qualified person must do this analysis. c.Select an anchor point for Personal Fall Arrest Systems (PFAS). Scaffolding student language requires that teachers understand their students and the language being used during lessons, to identify and support the targeted language that can be provided during instruction. Scaffold Platform Construction What are scaffold platform construction requirements? 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. Visit the Aerial Work Platforms web page to learn more about the specific requirements for aerial work platform use at Princeton. 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: d. Four feet. Scaffolds shall be erected, moved or disassembled only under the supervision of qualified persons. Then this must be inspected when conditions change, such as sunny conditions, warming temperatures, etc. d.Five times, Which would provide a more stable foundation? Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. 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. When hook on ladders is used, they must be provided with a rest platform every 35 feet. 3.Use mudsills to provide a firm foundation. Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. 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. Determine if fall protection is feasible during the erecting process. 3.Metal Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. Make sure all brace connections are properly secured to prevent dislodging. What are the main hazards associated with erecting, dismantling, and working on 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 described in their applicable sections. Cross braces shall not be used as a means of access. footings are capable of supporting the loaded scaffold without settling or displacement. Design and preplanning of the scaffold including weight limitations, scaffold type, fall protection, tie-offs, supports, etc. A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. Employers must ensure that: \text { Featured } 1926.451(e . All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. A scaffold is a temporary structure erected to support access or working platforms. A ladder or other safe means of access must be provided. 3.Avoid kicking or knocking items off the scaffold. has not been allowed to accumulate on the platform. 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. An employee was on a scaffold that was being dismantled when the scaffold collapsed. It is impossible for a stable scaffold structure to be built unless _____. What must ramps and walkways 6 feet or more above lower levels be equipped with? 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. and must be provided on any scaffold 10 feet or more above a lower level. Select the correct answer and then click DONE. Only those items specifically designed as counterweights must be used. 2. 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. 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). He fell 16 feet to the ground, sustaining facial fractures and other injuries. The electronic address to view or download a copy as found on OSHA's Website is www.osha.gov. d.24 inches, On high scaffolds, all planks should be secured by being tied down with: forklifts are not used to support scaffold platforms, unless: the entire platform is attached to the fork; and. a.5 feet Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. The number one scaffold hazard is worker falls. 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