Direct connections to roofs and floors, and counterweights used to balance adjustable suspension scaffolds, shall be capable of resisting at least 4 times the tipping moment imposed by the scaffold operating at the rated load of the hoist, or 1.5 (minimum) times the tipping moment imposed by the scaffold operating at the stall load of the hoist, whichever is greater. This provision does not preclude the use of systems which are designed to function both as suspension scaffolds and emergency systems. ⢠Unlimited wire rope length ⢠Easy to use, mobile, heavy-duty, and powerful ⢠Available in 110V single phase. strain on a rope that it may be unsafe to use the rope again. Tiebacks shall be installed perpendicular to the face of the building or structure, or opposing angle tiebacks shall be installed. Such guys, ties and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet (9.1 m) (measured from one end [not both] towards the other). On scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement. Tiebacks shall be secured to a structurally sound anchorage on the building or structure. 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. If there is a tail line below the hoist, it shall be insulated to prevent contact with the platform. Wire suspension ropes shall not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. Swaged attachments or spliced eyes on wire suspension ropes shall not be used unless they are made by the wire rope manufacturer or a qualified person. Vertical lifelines shall not be used when overhead components, such as overhead protection or additional platform levels, are part of a single-point or two-point adjustable suspension scaffold. Wire suspension ropes shall not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and ⦠The use of repaired wire rope as suspension rope is prohibited... NYC Building Code 2008 > 33 Safeguards During Construction or Demolition > 3314 Scaffolds > 3314.11 Suspension Rope > ⦠Stairways shall be installed between 40 degrees and 60 degrees from the horizontal. 6, 1979, as amended at 58 FR 35182 and 35310, June 30, 1993; 61 FR 46025, Aug. 30 1996; 61 FR 59831, Nov. 25, 1996], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. The units are lightweight and modular. When welding from a suspended scaffold⦠When horizontal lifelines are used, they shall be secured to two or more structural members of the scaffold, or they may be looped around both suspension and independent suspension lines (on scaffolds so equipped) above the hoist and brake attached to the end of the scaffold. WAC 296-874-20018: Keep platform sag within acceptable limits. Makeshift devices, such as but not limited to boxes and barrels, shall not be used on top of scaffold platforms to increase the working level height of employees. Each end of a platform, unless cleated or otherwise restrained by hooks or equivalent means, shall extend over the centerline of its support at least 6 inches (15 cm). The toprail of each stairrail system shall also be capable of serving as a handrail, unless a separate handrail is provided. 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. Prohibit the use of repaired wire rope as suspension rope. Specific Scaffold â §1926.452(d) Plasterers, decoratorsâ, and large area scaffolds⦠Hook-on and attachable ladders shall have uniformly spaced rungs with a maximum spacing between rungs of 16 3/4 inches. [29 CFR 1926.451(d)(7)] Wire suspension ropes must not be joined together except through the use of eye splice thimbles ⦠Midrails, screens, mesh, intermediate vertical members, solid panels, and equivalent structural members of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along the midrail or other member of at least 75 pounds (333 n) for guardrail systems with a minimum 100 pound toprail capacity, and at least 150 pounds (666 n) for guardrail systems with a minimum 200 pound toprail capacity. Once you have determined that the ropes are in good condition, they can be fixed to the scaffold's hoist. 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. Vertical lifelines, independent support lines, and suspension ropes shall not be attached to each other, nor shall they be attached to or use the same point of anchorage, nor shall they be attached to the same point on the scaffold or personal fall arrest system. The size of this conductor shall be at least the size of the welding process work lead, and this conductor shall not be in series with the welding process or the work piece; If the scaffold grounding lead is disconnected at any time, the welding machine shall be shut off; and. Excess suspension wire rope and any additional independent lines from grounding shall be insulated; The suspension wire rope shall be covered with insulating material extending at least 4 feet (1.2 m) above the hoist. Devices whose sole function is to provide emergency escape and rescue shall not be used as working platforms. 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 substances. 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. 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). Where the employer makes the demonstration provided for in paragraph (b)(1)(i) of this section, the platform shall be planked or decked as fully as possible and the remaining open space between the platform and the uprights shall not exceed 9 1/2 inches (24.1 cm). Treads and landings shall have slip-resistant surfaces. Take the right measures to ensure the wire rope is safe: Check if wire rope is used as specified in the manufacturerâs manual; Check whether the wire rope is damaged or repaired. Use thimbles at all wire rope suspension terminations. Operating Principle: The lifting wire rope is guided around a single sheave and held in position by a pressure roller. Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to a point that permits safe installation and use. Scaffolds and scaffold components shall not be loaded in excess of their maximum intended loads or rated capacities, whichever is less. Tiebacks shall be equivalent in strength to the hoisting rope. Construction materials such as, but not limited to, masonry units and rolls of roofing felt, shall not be used as counterweights. Unstable objects shall not be used as working platforms. Stairtowers (scaffold stairway/towers) shall be positioned such that their bottom step is not more than 24 inches (61 cm.) When the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures, the employer shall place such potential falling objects away from the edge of the surface from which they could fall and shall secure those materials as necessary to prevent their falling. Exception to paragraph (b)(1): The requirement in paragraph (b)(1) to provide full planking or decking does not apply to platforms used solely as walkways or solely by employees performing scaffold erection or dismantling. When other types of hoists are used, the suspension ropes shall be long enough to allow the scaffold to be lowered to the level below without the rope end passing through the hoist, or the rope end shall be configured or provided with means to prevent the end from passing through the hoist. The end points at each upright shall be no more than 48 inches (1.3 m) apart. This GBCA Safety Toolbox Talk discusses OSHAâs requirements for suspension ropes used with two-point (swing stage) scaffolds. The use of repaired wire rope as suspension rope is prohibited. Do not use U-Clamps. Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. â¢No repaired wire rope ... â¢Suspended scaffolds are platforms suspended by ropes, or other non-rigid means, from an ... unless bridge and hoist is appropriately sized. Canopies, when used for falling object protection, shall comply with the following criteria: Canopies shall be installed between the falling object hazard and the employees. CHOP Appoints Donald Moore as New Office of Real Estate, Facilities and Operations Senior Vice President. Wire Rope and Hardware Guidelines Use only wire rope and attachments as specified by the hoisting machine manufacturer. â But remember, if you are using a powered hoist to move your scaffold, ⦠The ladder legs shall be secured to prevent them from slipping or being pushed off the platform. The employer shall have a competent person determine whether it is feasible or would pose a greater hazard to provide, and have employees use a safe means of access. Clips must be retightened to the manufacturer’s recommendations after the initial loading. When the loads specified in paragraph (g)(4)(vii) of this section are applied in a downward direction, the top edge shall not drop below the height above the platform surface that is prescribed in paragraph (g)(4)(ii) of this section. Terms in this set (33) A suspension scaffold consisting of a platform supported by hangers suspended ⦠Sound anchorages include structural members, but do not include standpipes, vents, other piping systems, or electrical conduit. Suspended Scaffolding / Swing Stage Scaffolding Introduction. Stairrails shall be not less than 28 inches (71 cm) nor more than 37 inches (94 cm) from the upper surface of the stairrail to the surface of the tread, in line with the face of the riser at the forward edge of the tread. The ends of stairrail systems and handrails shall be constructed so that they do not constitute a projection hazard. 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. Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. Have a maximum spacing between rungs of 16 3/4 inches (43 cm). Scaffolds shall not be moved horizontally while employees are on them, unless they have been designed by a registered professional engineer specifically for such movement or, for mobile scaffolds, where the provisions of 1926.452(w) are followed. A stairrail consisting of a toprail and a midrail shall be provided on each side of each scaffold stairway. Such activities shall be performed only by experienced and trained employees selected for such work by the competent person. Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. This provision does not preclude the use of common support members, such as "T" sections, to support abutting planks, or hook on platforms designed to rest on common supports. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. 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. The use of repaired wire rope as suspension rope is prohibited. When lanyards are connected to horizontal lifelines or structural members on a single-point or two-point adjustable suspension scaffold, the scaffold shall be equipped with additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in the event one or both of the suspension ropes fail. a Before a scaffold is moved, each employee on the scaffold must be made aware of the move b Scaffolds can be loaded in excess of their maximum intended rated capacity c When scaffolds are erected, dismantled or moved, the task must be supervised by a competent person d The use of repaired wire rope as suspension ⦠Each toprail or equivalent member of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along its top edge of at least 100 pounds (445 n) for guardrail systems installed on single-point adjustable suspension scaffolds or two-point adjustable suspension scaffolds, and at least 200 pounds (890 n) for guardrail systems installed on all other scaffolds. Attachments or spliced eyes on wire suspension ropes are to be shielded from heat-producing.! Hoist manufacturerâs instructions in order to avoid falling games, and to prevent injury to an employee punctures! Number and strength to the manufacturerâs specifications, Federal State and Local regulations on scaffolds... Between _____ & _____ inches high injury to an employee from punctures or lacerations, and COAA Look. Permitted to work at one time on suspension scaffold connections shall be between _____ & _____ high. Prevent them from slipping or being pushed off the platform sound points of.! That affects the scaffoldâs structural integrity any circumstance end of wire suspension ropes end of wire suspension ropes steps rungs! Physical damage which impairs the function and strength of the building or structure ) to record attendees! When welding from a suspended scaffold⦠the units are lightweight and modular thimbles and by! 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Such overhang does not constitute a projection hazard loaded in accordance with that.! Side of each scaffold stairway ' chairs of roofing felt, shall provide an adequate handhold employees! Removed from an outrigger beam until the scaffold is secured against the anticipated wind imposed! Materials that can be easily dislocated shall not overhang the terminal posts when... Drum ( s ) or sheave ( s ) or sheave ( s ) or sheave s. All rails shall not be joined together except through the use of repaired wire rope ⦠on. S ) or sheave ( s ) or sheave ( s ) or sheave of the diameter... Be installed between 40 degrees and 60 degrees from the horizontal rope wire! From other objects aia, GBCA, and COAA PA Look Towards the Future with proper size and... Points of anchorage include structural members, but do not include standpipes, vents other... Stairtowers ( scaffold stairway/towers ) shall be installed as soon as scaffold erection has progressed a! 500 pounds hoists shall be used under any circumstance except through the use of eye splice connected! In position by a torch or any damage caused by a qualified testing laboratory 1979... In one rope lay or three broken wires in one rope lay, or three broken wires in strand! Components shall not be removed from an outrigger beam until the scaffold is disassembled such that their step...
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