Here are the scaffold guardrail [29 CFR 1926.451(d)(6)], Gears and brakes must be enclosed. Must have rest platforms at 12-foot maximum intervals. Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled. Must be positioned so as not to tip the scaffold. [29 CFR 1926.451(g)(4)(xiii)], Supported scaffolds are platforms supported by legs, outrigger beams, brackets, poles, frames, or similar rigid support. [29 CFR 1926.451(d)(10)], Suspension ropes supporting adjustable suspension scaffolds must be a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. The ladder legs shall be secured to prevent them from slipping or being pushed off the platform. The top guy, tie or brace of completed scaffolds shall be placed no further than the 4:1 height from the top. Tiebacks shall be equivalent in strength to the hoisting rope. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substance being used. What are the clearance distance between scaffolds and power lines? Fall protection. Suspension scaffold outrigger beams shall be: Provided with stop bolts or shackles at both ends; Securely fastened together with the flanges turned out when channel iron beams are used in place of I-beams; Installed with all bearing supports perpendicular to the beam center line; Set and maintained with the web in a vertical position; and. Abrasion, corrosion, scrubbing, flattening or peening causing loss of more than one-third of the original diameter of the outside wires. Each scaffold and scaffold component must support without failure its own weight and at least 4 times the maximum intended load applied or transmitted to it. [29 CFR 1926.451(g)(1)], A competent person must determine the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. In addition, employees must wear hard hats. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where the installation and use of such protection is feasible and does not create a greater hazard. If you need to move around your project then mobility will be your main concern. What are the requirements for scaffold planking? The independent support lines shall be equal in number and strength to the suspension ropes. Only those items specifically designed as counterweights shall be used to counterweight scaffold systems. Scaffolding Access Egress Requirements. Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 cm) wide. Access Requirements Stairtowers (Scaffold Stairway/Towers) Stairtowers must be positioned so their bottom step is not more than 24 inches above the scaffold supporting level. The following equipment is often required for scaffolding fall protection: Full-Body Harness This is a support device consisting of connected straps that are designed to distribute the force from a fall. Single tiebacks installed at an angle are prohibited. [29 CFR 1926.451 (b) (2)] Each end of a platform 10 feet or less in length shall not extend over its support more than 12 inches (30 cm) unless the platform is designed and installed so that the cantilevered portion of the platform is able to support employees and/or materials without tipping, or has guardrails which block employee access to the cantilevered end. [, Employers must ensure that all employees are trained to recognize the hazards associated with the type of scaffold being used. Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. When canopies are used on suspension scaffolds for falling object protection, the scaffold shall be equipped with additional independent support lines equal in number to the number of points supported, and equivalent in strength to the strength of the suspension ropes. On scaffolds where scaffold planks are abutted to create a long platform, each abutted end shall rest on a separate support surface. What exactly is sufficient clear space? WORKERS MUST USE FALL PROTECTION WHEN WORKING FROM THIS SCAFFOLD Green: SCAFFOLD IS OK FOR USE Tag must include the scaffold capacity: Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s). Non-uniform rung spacing caused by joining end frames together is allowed, provided the resulting spacing does not exceed 16 3/4 inches (43 cm). [29 CFR 1926.451(d)(3)(x)]. When vertical lifelines are used, they shall be fastened to a fixed safe point of anchorage, shall be independent of the scaffold, and shall be protected from sharp edges and abrasion. [29 CFR 1926.451(f)(1)] Load carrying timber members should be a minimum of 1,500 lb-f/in2 construction grade lumber. Scaffolds are commonly used in construction work so workers have a safe, stable work Portable, hook-on, and attachable ladders (Additional requirements for the proper construction and use of portable ladders are contained in subpart X of this part -- Stairways and Ladders): Portable, hook-on, and attachable ladders shall be positioned so as not to tip the scaffold; Hook-on and attachable ladders shall be positioned so that their bottom rung is not more than 24 inches (61 cm) above the scaffold supporting level; When hook-on and attachable ladders are used on a supported scaffold more than 35 feet (10.7 m) high, they shall have rest platforms at 35-foot (10.7 m) maximum vertical intervals. Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing, or equivalent means, as follows: Guys, ties, and braces shall be installed at locations where horizontal members support both inner and outer legs. EQUIPMENT. Safe points of anchorage include structural members of buildings, but do not include standpipes, vents, other piping systems, electrical conduit, outrigger beams, or counterweights. What are some of the requirements for manually operated suspension scaffold hoists? maximum lift heights. Ladders shall not be used on scaffolds to increase the working level height of employees, except on large area scaffolds where employers have satisfied the following criteria: When the ladder is placed against a structure which is not a part of the scaffold, the scaffold shall be secured against the sideways thrust exerted by the ladder; The platform units shall be secured to the scaffold to prevent their movement; The ladder legs shall be on the same platform or other means shall be provided to stabilize the ladder against unequal platform deflection, and. Where scaffolds must be used in areas that the employer can demonstrate are so narrow that platforms and walkways cannot be at least 18 inches (46 cm) wide, such platforms and walkways shall be as wide as feasible, and employees on those platforms and walkways shall be protected from fall hazards by the use of guardrails and/or personal fall arrest systems. The scaffold is only acceptable as an anchorage point if it meets the strength requirements for an anchorage as defined above. an insulating material covers the suspension wire rope and extends at least 4 feet (1.2 m) above the hoist. Must have slip-resistant treads on all steps and landings. At least three and one-half inches (9 cm) high from the top edge of the toeboard to the level of the walking/working surface. Have a maximum spacing between rungs of 16 3/4 inches (43 cm). WebStandards Scaffolding is addressed in specific OSHA standards for general industry, maritime, and construction. Any of these independent modules or units should form a base. A study of the degradation properties of When intermediate members (such as balusters or additional rails) are used, they shall not be more than 19 inches (48 cm) apart. In general, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. WebWhen 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 [29 CFR 1926.451(d)(17)], Welding can be done from suspended scaffolds when, No materials or devices may be used to increase the working height on a suspension scaffold. [29 CFR 1926.451(d)(6)] Also see, OSHA Standards and Interpretation Letter: 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. This includes ladders, boxes, and barrels. [29 CFR 1926.451(a)(1)], Solid sawn wood, fabricated planks, and fabricated platforms may be used as scaffold planks following the recommendations by the manufacturer or a lumber grading association or inspection agency. [29 CFR 1926.451(a)(1)] A qualified person must design the scaffolds, which are loaded in accordance with that design. 10 OSHA Scaffolding Requirements 1. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. [29 CFR 1926.451(f)(16)], The standard prohibits work on platforms cluttered with debris. Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component to a level below that required by paragraph (a)(1) of this section. WebPurely relying on the expertise of a Scaffold contractor will not meet the accreditation requirements. In addition to wearing hardhats each employee on a scaffold shall be provided with additional protection from falling hand tools, debris, and other small objects through the installation of toeboards, screens, or guardrail systems, or through the erection of debris nets, catch platforms, or canopy structures that contain or deflect the falling objects. [29 CFR 1926.451 (a) (1)] Each scaffold platform and walkway must be at least 18 inches (46 cm) wide, guardrails and/or personal fall arrest systems must be used. [, A competent person must evaluate all direct connections prior to use to confirm that the supporting surfaces are able to support the imposed load. Sand, gravel and similar materials that can be easily dislocated shall not be used as counterweights. Must have rest platforms at 35-foot maximum intervals on all supported scaffolds more than 35 feet high. In addition, masons' multi-point adjustable suspension scaffold connections shall be designed by an engineer experienced in such scaffold design. Each suspension rope, including connecting hardware, used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope with the scaffold operating at either the rated load of the hoist, or 2 (minimum) times the stall load of the hoist, whichever is greater. When winding drum hoists are used on a suspension scaffold, they shall contain not less than four wraps of the suspension rope at the lowest point of scaffold travel. c) Added guidance for assessing base soil conditions. What are the requirements for suspension scaffolds? [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 surfaces. Direct access to or from another surface shall only be used when the scaffold is not more than 14 inches horizontally and 24 inches vertically from the other surface. When are both fall-arrest and guardrail systems required? WebNever alter a scaffold structure or extend it. In addition to the normal operating brake, suspension scaffold power-operated hoists and manually operated hoists shall have a braking device or locking pawl which engages automatically when a hoist makes either of the following uncontrolled movements: an instantaneous change in momentum or an accelerated overspeed. Effective September 2, 1997, access for employees erecting or dismantling supported scaffolds shall be in accordance with the following: The employer shall provide safe means of access for each employee erecting or dismantling a scaffold where the provision of safe access is feasible and does not create a greater hazard. In addition to meeting the requirements of 1926.502(d), personal fall arrest systems used on scaffolds shall be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. There is no minimum width requirement for boatswains' chairs. Each platform greater than 10 feet in length shall not extend over its support more than 18 inches (46 cm), 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. What materials can be used to increase the working level height of employees on supported scaffolds? WebWhat are the requirements for constructing scaffold platforms? In these situations, only the planking that the employer establishes is necessary to provide safe working conditions is required. [29 CFR 1926.450(b)], Gasoline power-operated hoists or equipment are not permitted. Such activities shall be performed only by experienced and trained employees selected for such work by the competent person. Each platform on all working levels of scaffolds shall be fully planked or decked between the front uprights and the guardrail supports as follows: Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch (2.5 cm) wide, except where the employer can demonstrate that a wider space is necessary (for example, to fit around uprights when side brackets are used to extend the width of the platform). Webdigital library an online access to it is set as public so you can download it instantly. the grounding conductor is not attached in series with the welding process or the work piece. Where do tiebacks for outrigger beams, cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices need to be secured? Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. Web(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 The stall load of any scaffold hoist shall not exceed 3 times its rated load. 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 hoist, or similar surface shall be used. Only the planking that the employer establishes is necessary to provide safe working conditions is required if you need move. Here are the clearance distance between scaffolds and power lines on scaffolds where scaffold planks abutted. Be used unless the scaffold guardrail [ 29 CFR 1926.451 ( d ) ( 3 ) ( x ).! One-Third of the original diameter of the original diameter of the outside wires distance between scaffolds and power?... Bolts or other direct connections to the hoisting rope least 4 feet ( scaffold access requirements! 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