and uprights shall bear on base plates and mud sills or other adequate firm foundation. He fell approximately 12 feet to a concrete dock. In addition, OSHA requires that all scaffolds be inspected by a qualified person at least once every 30 days. When midrails, 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. Rigid base plate with 4" stem. 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 the Supported Scaffolds module. Knowing and understanding OSHAs scaffolding requirements can create a safe work environment and prevent accidents. BS-EN-74-1-2005-Scaffolding Coupler Standard British Standard. 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. Product Manual. The stall load of any scaffold hoist shall not exceed 3 times its rated load. They also provide information, training, and assistance to employers and workers on how to comply with these standards. Outriggers and Bases. 9.. Guys, ties, and braces shall be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height and be repeated vertically at locations of horizontal members every 20 feet (6.1 m) or less thereafter for scaffolds 3 feet (0.91 m) wide or less, and every 26 feet (7.9 m) or less thereafter for scaffolds greater than 3 feet (0.91 m) wide. Front edge of platforms The front edge of the scaffold platform can't be more than 14 inches from the face of a structure unless guardrails or personal fall-arrest systems are used to keep workers [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. General access scaffolds provide a means of working at height while preventing falls and should be provided whenever practicable. Base Plate: A device used to distribute vertical load. Sturdy welded construction offers reliable support and durability. The area below the scaffold being barricaded so employees are not permitted to enter. Guardrails must be installed on all open sides and ends of scaffolds more than ten feet above the ground or working surface. . 1910.27, Scaffolds and rope descent systems. Scaffolds shall be erected, moved, dismantled, or altered only under the supervision and direction of a competent person qualified in scaffold erection, moving, dismantling or alteration. In addition, all scaffolds should be able to support their weight and the weight of the materials and equipment placed on them. The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard to employees. Scaffold footings should be levels and have the capacity to support the loaded scaffold. One concerns the employees on the scaffold itself, and the other concerns employees who may work in or enter the area below the scaffold. (. (a) - The employer shall have each employee who performs work while on a scaffold trained by a person qualified in the subject matter to recognize the hazards associated with the . [, Nothing that could cause a slip, trip or fall (i.e. Prevent a rolling scaffold's joints from separating. The Scaffolding Base Plate, made from 3mm mild steel and used at the very base of the scaffold structure to ensure a secure and even placement of scaffold tube. Specific requirements are described below. A canopy structure, debris net, or catch platform strong enough to withstand the impact forces of the potential falling objects shall be erected over the employees below. Midrails are the middle bars of a scaffold guardrail system and should be installed midway between the top edge of the system and the working platform. Improper Access Leads to Serious Injuries. Training shall include [. OSHA 29 CFR 1926.451: Scaffold - General Requirements OSHA 29 CFR 1910.28 . Repair, replacement or field modification of anchor rods (anchor bolts). Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope. Two-point and multi-point suspension scaffolds shall be tied or otherwise secured to prevent them from swaying, as determined to be necessary based on an evaluation by a competent person. X-braces must be in place. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Handrails, and toprails that serve as handrails, shall provide an adequate handhold for employees grasping them to avoid falling. This is in response to your letter dated January 28, 2000, addressed to the Occupational Safety and Health Administration the scaffold , Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of , No one ever leaves the safety zone on adjustable scaffolding. 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. According to OSHA standard 1926.451 (g) (1), anyone working on a scaffold more than 10 feet above a lower level must be protected . Uplift is the separation of a frame from the frame below it. Scaffolds What you need to do. You must use base plates on concrete, and leveling jacks , OSHA 29 CFR 1926.451: Scaffold General Requirements OSHA 29 CFR 1910.28 What are the main components to scaffold footing? Guardrails, midrails and toerails are all required on scaffolding. 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. 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. Suspended scaffold - like the supported scaffold, this type also usually consists of one or more platforms but is suspended by overhead support and ropes. is allowed to accumulate on the platform. So, let . No one ever leaves the "safety zone" on adjustable scaffolding. When intermediate members (such as balusters or additional rails) are used, they shall not be more than 19 inches (48 cm) apart. Employers shall retrain each employee when they have reason to believe that the employee lacks the skill or understanding to safely erect, use, or dismantle a scaffold. In these situations, only the planking that the employer establishes is necessary to provide safe working conditions is required. A mud sill is a device that further extends the point load of the base plates. See Appendix A of Subpart L for non-mandatory toeboard guidelines. The footing of a scaffold typically consists of a wooden pad (known as a mud sill) that goes directly on top of the floor material usually dirt or concrete. 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. 1926.755 (a) (2) Each column anchor rod (anchor bolt) assembly, including the column-to-base plate weld and the column foundation, shall be designed to resist a minimum eccentric gravity load of 300 pounds . Horizontal members are parallel, level, and not more than 22 vertical inches apart. [, Stairways installed between 40 degrees and 60 degrees from the horizontal. OSHA scaffold regulations recommend that your scaffolding include a guard rail across the base, mid rails and top of any scaffolding more than 10 feet in height. [, Ends of stair rails and handrails constructed so that they do not constitute a projection hazard. [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. To implement and manage these scaffolding requirements, you need comprehensive software that will create, automate, track, and streamline data collection for scaffold safety data over time. Except as provided in paragraphs (a)(2), (a)(3), (a)(4), (a)(5) and (g) of this section, 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. Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating may not obscure the top or bottom wood surfaces. [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). Employees that are more than 10 feet off the ground need to be protected by using fall arrest systems or guardrails, except for employees that are on single-point and two-point adjustable suspension scaffolds. Note: A 1 1/8-inch by 10-inch by 10-inch piece of exterior grade plywood may be used in lieu of the wooden base mentioned above. Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. [, No gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights, unless the employer can demonstrate that a wider space is necessary. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. The ends of stairrail systems and handrails shall be constructed so that they do not constitute a projection hazard. Build a staircase if the scaffold will be used for a length of time. When toeboards are used for falling object protection, they must be [. Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. Mud Sill. The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: Exception to paragraph (f)(6): Scaffolds and materials may be closer to power lines than specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. Except as provided in paragraphs (b)(2)(i) and (b)(2)(ii) of this section, each scaffold platform and walkway shall be at least 18 inches (46 cm) wide. [. When an outrigger beam is used, the shackle or clevis with which the rope is attached to the outrigger beam shall be placed directly over the center line of the stirrup. Ropes shall be inspected for defects by a competent person prior to each workshift and after every occurrence which could affect a rope's integrity. Bearer: A horizontal member of a scaffold upon which the platform unit rests and that may be supported by runners. Push toward the base when moving a rolling scaffold. The first step is to confirm that whether construction adheres to the requirements of the design of the project. Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations, and to prevent snagging of clothing. Model # I-IBBF4 Store SKU # 1001564241. OSHA requires that all four sides of a scaffold be guyed, tied, or braced if the height of the scaffold is more than four times its minimum base dimension. [29 CFR 1926.451(c)(1)], Scaffolds may not be moved horizontally while employees are on them, unless they have been designed for that purpose by a registered professional engineer, or in the case of mobile scaffolds, where the provisions of 29 CFR 1926.452(w) are followed. No one ever leaves the "safety zone" on adjustable scaffolding. This is one more reason for always using fall protection. [, Fall protection consists of either personal fall arrest systems or guardrail systems meeting OSHA requirements. 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). Crossbracing is acceptable in place of a midrail when the crossing point of two braces is between 20 inches (0.5 m) and 30 inches (0.8 m) above the work platform or as a toprail when the crossing point of two braces is between 38 inches (0.97 m) and 48 inches (1.3 m) above the work platform. Guardrails May Have Saved Him, Occupational Safety and Health Administration, Electrical Incidents: Lack of Ground-Fault Protection, Severe Storm and Flood Recovery Assistance, Scaffolding : Supported Scaffolds - Frame or Fabricated, In order to assure stability, supported scaffolds must be set on [, Footings must be capable of supporting the loaded scaffold without settling or displacement. Base Plate. (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. The design criteria, maximum intended load capacity, and intended use of the scaffold. Distance from Power Lines. 3. Working on or around scaffolding can be dangerous if the proper safety precautions arent taken. The employer was cited for not assuring the stability of the scaffold before requiring the worker to use it. 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. [, Have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches. As he walked to the next section of the scaffold, it collapsed and he fell to the cement floor, sustaining fractures to his left knee and right elbow. Additional requirements for these scaffolds can be found in their respective modules. Cross Bracing is a technique that involves crossing braces to support framed structures such as scaffoldings. Counterweights shall be made of non-flowable material. [, Stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing. Located right next to Chinas fifth largest lakeLake Taihu near by Shanghai, East Grace Remember, the higher the scaffolding goes the more pronounced any tilt becomes. Each employee on a boatswains' chair, catenary scaffold, float scaffold, needle beam scaffold, or ladder jack scaffold shall be protected by a personal fall arrest system; Each employee on a single-point or two-point adjustable suspension scaffold shall be protected by both a personal fall arrest system and guardrail system; Each employee on a crawling board (chicken ladder) shall be protected by a personal fall arrest system, a guardrail system (with minimum 200 pound toprail capacity), or by a three-fourth inch (1.9 cm) diameter grabline or equivalent handhold securely fastened beside each crawling board; Each employee on a self-contained adjustable scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by the frame structure, and by both a personal fall arrest system and a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by ropes; Each employee on a walkway located within a scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) installed within 9 1/2 inches (24.1 cm) of and along at least one side of the walkway.