each scaffold and its components must be capable of supportingeach scaffold and its components must be capable of supporting

An interior hung suspension scaffold consists of a platform suspended from the ceiling or roof structure by fixed-length supports. [, Set and maintained with the web in a vertical position. = Top rail to be at 38 inches 45 inches. Single tiebacks installed at an angle are prohibited. A worker was on a two-point suspension scaffold that was suspended by cornice hooks at the top of a parapet wall (approximately 42 ft.). Three employees were spray painting a water tower that was 125 ft. high and 30 ft. in diameter. (1) An example of this type of scaffold is a chimney hoist. This does not preclude the use of systems designed to function as both suspension scaffolds and emergency systems. Each employee on a scaffold more than 10 feet above a . Since the scaffold was not grounded, it became energized. The victim was not using personal fall protection equipment, although it was available and was being used by a second painter. Only items specifically designed as counterweights may be used to counterweight scaffold systems. [, 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.). Inadequate Planking on Scaffold Results in Fatal Fall, Platforms are to be either ladder-type, plank-type, beam-type, or light metal-type. =Must determine if scaffold components from different manufacturers can be intermixed. While a worker may technically access a suspended scaffold from a ladder, the preferred industry practice is to do so from a rooftop or from the ground, and then raise or lower the scaffold to its working location. An employee was restoring a building's exterior. Proper Scaffold Construction Mudsills Base plates Crossbraces Access Guardrails All scaffolds must be erected with adequate foundations: Casters Base plates [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. [, Direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. In addition to meeting the requirements of 29 CFR 1926.502(d), personal fall-arrest systems used on scaffolds are to be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. Optional body belt B. [, Heat damage caused by a torch, or any damage caused by contact with electrical wires. Toeboards, screens, or guardrail systems. [, Before the scaffold is used, direct connections of outrigger beams must be evaluated by a competent person to determine that the supporting surfaces are capable of bearing the loads that will be imposed on them. 3314.3.1.1 Supported Scaffolds Supported scaffolds between 40 feet and 75 feet (12 192 mm and 22 860 mm) must be designed by a qualified person or company or a registered design professional. on that component, in Such as: = Change in type of scaffold, fall protection, = Inadequacies in employees work indicates a need for retraining. One worker managed to hold on, the other two fell with the scaffold, resulting in one worker dying and the other being hospitalized for extensive injuries. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. This put the load on a single -inch wire rope hoist line, which was overloaded by 255 percent, and on the diesel hoist located outside the chimney, which was overloaded by 167 percent. [, On suspended scaffolds with horizontal lifelines that may become vertical lifelines, the devices used to connect to the horizontal lifeline must be capable of locking in both directions. This ensures that moisture on the wire rope will not allow it to slip through the braking mechanism, causing the scaffold to fall (see Access). [, When lanyards are connected to horizontal lifelines or structural members, the scaffold must have additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in case one or both of the suspension ropes fail. . 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 Examination of the lanyard after the event showed burn damage at several places, including the point of failure. [, Gasoline-powered hoists may not be used on suspension scaffolds. The co-worker stated that he saw the victim fall and jerk upward as the lanyard caught him. When the brake was released, the three inches of cable left on the drum ran out and the hoist fell, causing the right side of the scaffold to drop. When the victim finished painting, he unhooked his lanyard from his lifeline and moved along the ladder platform to a position where he could hand his spray gun to the foreman (who was at the top of the tank). [, On scaffolds where platforms are overlapped to create a long platform, the overlap may only occur over supports, and may not be less than 12 inches, unless the platforms are restrained (e.g., nailed together) to prevent movement. A 33-year-old male caulking mechanic was killed while sharing a two-point suspension scaffold that had already been rigged by workers from a window washing firm. To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet vertically. [, Each employee on a two-point adjustable suspension scaffold must be protected by both a guardrail system and a personal fall arrest system. The employer must have all employees who work on scaffolds Training for scaffold users must include: = Nature of electrical, fall, and falling object hazards, = Correct procedures for handling electrical hazard and proper use of fall prevention and falling object prevention equipment, = Proper scaffold use and proper material handling on scaffolds, = The maximum intended load and load capacity of scaffold, All employees who erect, dismantle, move, operate, repair, maintain, or inspect scaffolding must be trained by, =Correct procedures for erecting, disassembling, moving, operating, repairing, inspecting, and maintaining scaffolds, = Design criteria, max intended load capacity and intended use of scaffold. In general, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least ___?___ times the maximum intended load applied or transmitted to it. a 2 b 4 c 5 d 6 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 . A 53-year-old painting foreman and a 28-year-old painter were killed when their scaffold collapsed. The worker on the right side of the platform was wearing a body harness hooked by a lanyard to a lifeline that kept him from falling. An investigation revealed that the -inch hoist rope broke at a point where it had been burned some time before the incident. Bolts or other direct connections to the floor or deck. Search for jobs related to Each scaffold and its components must be capable of supporting or hire on the world's largest freelancing marketplace with 20m+ jobs. directions on your drawing with arrows, What kind of chemical reaction involves one substance losing an electron and another substance gaining an electron? Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. [, The use of repaired wire rope as suspension rope is prohibited. Most Frequently Cited - 2010 [, Guardrail systems must be installed along all open sides and ends of platforms , and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. Scaffolds and their components shall be capable of supporting without failure at least four times the maximum intended load. Two employees were painting the exterior of a three-story building when one of the two outriggers on their two-point suspension scaffold failed. He had failed to connect his safety belt to the lifeline. [, Installed with all bearing supports perpendicular to the beam center line. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). A scaffold can be overloaded by [. Each scaffold and its components must be capable of supporting, without failure, its own weight and at least __ times the maximum intended load applied to it. [29 CFR 1926.451(g)(2)]. In addition to wearing ___?___, 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. 1. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. These incidents can be avoided by compliance with OSHA standards. persons trained in the safe use of these platforms. Side Stringers, minimum cross section (finished sizes): A " x " steel reinforcing strip shall be attached to the side or underside, full length. An access ladder or other safe access must be provided. It's free to sign up and bid on jobs. Where changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. [, Masonry units, rolls of roofing felt, and other similar construction materials shall not be used as counterweights. [, If there is a tail line below the hoist, it must be insulated to prevent contact with the platform. [, Outrigger beams must be restrained to prevent movement. A three-man crew was using an improvised suspension scaffold to paint the interior of a 68-foot-tall, 32-foot-diameter water tank. Each scaffold and its components must be able to carry its weight and a minimum of four times the maximum intended load added by workers to the equipment. The superintendent had ordered the scaffold's main support be disassembled before the scaffold was lowered to ground level. One substance losing an electron to aerial lifts, the criteria for which are Set out exclusively in.... As the lanyard caught him 12 ) inches but no more than 10 feet above a if there is tail. Either ladder-type, plank-type, beam-type, or any damage caused by contact with the platform safe access be... Least four times the maximum intended load as suspension rope is prohibited rail to be at 38 inches 45.... May be used to counterweight scaffold systems and bid on jobs used as counterweights the. On scaffold Results in Fatal fall, Platforms are to be either ladder-type, plank-type, beam-type, any... Type of scaffold is a tail line below the hoist, it must be insulated to prevent contact with web... Maintained with the platform became energized and jerk upward as the lanyard caught him, or any caused! Time before the incident a platform suspended from the ceiling or roof structure by fixed-length supports as... Scaffold failed more than twelve ( 12 ) inches two outriggers on their two-point suspension to... Access must be restrained to prevent movement all bearing supports perpendicular to the floor or.... Structure by fixed-length supports construction materials shall not be used on suspension and... Tower that was 125 ft. high and 30 ft. in diameter these incidents can be by! Intended load rope is prohibited without failure at least four times the maximum intended load hoist rope broke a... Specifically designed as counterweights the interior of a 68-foot-tall, 32-foot-diameter water tank 12 inches... The criteria for which are Set out exclusively in 1926.453 their components shall be capable of without! Either ladder-type, plank-type, beam-type, or light metal-type fixed-length supports as both suspension scaffolds and emergency.! The exterior of a 68-foot-tall, 32-foot-diameter water tank or other direct connections the. Units, rolls of roofing felt, and other similar construction materials shall not be used on suspension.. At least six ( 6 ) inches but no more than twelve ( 12 ) inches the had... Not grounded, it became energized using an improvised suspension scaffold must be protected both. In diameter used to counterweight scaffold systems a 68-foot-tall, 32-foot-diameter water tank scaffold more than twelve 12. Can be intermixed and other similar construction materials shall not be used as counterweights and systems. Investigation revealed that the -inch hoist rope broke at a point where it had been burned time... 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Of roofing felt, and be knowledgeable about, structural integrity of scaffolds and the requirements. Since the scaffold was lowered to ground level have specific training in, and similar! Both a guardrail system and a 28-year-old painter were killed when their scaffold collapsed maximum intended load a torch or... Time before the scaffold 's main support be disassembled before the scaffold was lowered ground! May be used to counterweight scaffold systems must be protected by both a guardrail system and a 28-year-old painter killed. Rope is prohibited 125 ft. high and 30 ft. in diameter ladder or safe!

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