For the situation you described, the deck inside the scaffold uprights provides the access point to the side-bracket platform. slopes up to the ridge from all walls of the building. William Goren is one of the countrys foremost authorities on the American with Disabilities Act (ADA) and the Rehabilitation Act of 1973. The part of a truss that may be cut if necessary is the _____. Only those items specifically designed as counterweights shall be used to counterweight scaffold systems. 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. An intersecting roof may be framed out with valley rafters on the main roof, or framed later on top of the main roof decking. Where did this requirement come from? Stairrail systems and handrails shall be surfaced to prevent injury to employees from punctures or lacerations, and to prevent snagging of clothing. The steel pipe is fixed supported at its ends. Considering how federal funds flow into government agencies at all levels, as well as non-profits and other organizations, EO 13166 affects thousands of organizations. Scaffolding in this Guide means the individual components, for example tubes, couplers Would EEOCs Hearing Disabilities in the Workplace Guidance Survive Kisor? In addition, masons' multi-point adjustable suspension scaffold connections shall be designed by an engineer experienced in such scaffold design. Suspension ropes supporting adjustable suspension scaffolds shall be of a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. Greater variations in riser height are allowed for the top and bottom steps of the entire system, not for each flight of stairs. The ladder must extend above the access point to the scaffold platform by at least 1 metre and a one-way self-closing access gate (or where space is tight, trapdoor) should be fitted at the. Access. Crossbraces must not be used as a means of access. 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. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement. An active welding rod or uninsulated welding lead shall not be allowed to contact the scaffold or its suspension system. With their end joints lapped on the bearing partition, The ends of ceiling joists are cut to the slope of the roof, so they will not project above the rafters. Ladders that are a part of the scaffolding system, such as hook-on and attachable ladders, shall be positioned so that the bottom rung is not more than 24 inches above the supporting level. That policy should lay out detailed steps that the defendant will take. To reduce the possibility of welding current arcing through the suspension wire rope when performing welding from suspended scaffolds, the following precautions shall be taken, as applicable: An insulated thimble shall be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). 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. A Compound angle cut on both sides of the top or bottom of a hip rafter, The total run of any hip jack rafter is equal to its, distance from the center of its seat cut to the outside corner, The common difference in length for a 16" o/c hip jack rafter with a unit rise of 9" is. What exactly does that mean? By: 3. When an intersecting roof is framed on top of the roof sheathing, ______ are nailed to the roof decking in place of valley rafters. A child who had participated in defendants school programs and summer camp since the age of five was diagnosed with type I diabetes. Stairway-type Ladders Must have their bottom step no more than 24 inches above the level on which the scaffold is supported. Guardrail systems shall be installed along all open sides and ends of platforms. Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. 2. Required when there are no ceiling joists. A ribband becomes a ___________ when a 2x6 is nailed to the edge of the ribband. Also, I am even more fortunate that none of these blog entries in the niche category overlap with each other. The type of roof that slopes upward to the ridge from all walls of the building is _____. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. Paragraph (g)(2) of this section addresses fall protection for scaffold erectors and dismantlers. The plaintiff admitted that the defendants policy as amended during the course of litigation would allow for her child to participate in the defendants programs. How many trusses would be required for a house 36' x 28', assuming 2' on center spacing? Compound angle cut at the top of a hip or hip jack rafter so it will fit flush against the ridge. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills or other adequate firm foundation. Ceiling joists can be supported by all of the following except __________. Other types - these are man lifts, hoists, etc., which are . Scaffold collapse The proper erection of a scaffold is essential in preventing this particular hazard. building length divided by on center measurement plus one and then double it. Tiebacks shall be equivalent in strength to the hoisting rope. a means of access must be provided to a scaffold. Guardrails meeting the requirements of paragraph (g)(4) of this section shall be provided on the open sides and ends of each landing. Stairways shall be installed between 40 degrees and 60 degrees from the horizontal. The standard for meaningful access evolved from Title VI of the Civil Rights Act of 1964 and its prohibition against discrimination on the basis of national origin. Handrails, and toprails that are used as handrails, shall be at least 3 inches (7.6 cm) from other objects. LEXIS 168680 (M.D. The workers allowed to climb an access ladder for a metal tubular scaffold that has its rungs spaced 18" apart are the scaffold erectors only Wood scaffold planks, when loaded should deflect no more than 1/60th of the span Guardrails must be installed on all scaffolds more than 10' in height Heat damage caused by a torch or any damage caused by contact with electrical wires. Ropes shall be replaced if any of the following conditions exist: Any physical damage which impairs the function and strength of the rope. I am fortunate that there are so many great blog entries in the category. According to the Occupational Safety and Health Administration (OSHA), the number one killer on construction sites is _____. Ramps and walkways 6 feet (1.8 m) or more above lower levels shall have guardrail systems which comply with subpart M of this part - Fall Protection; Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses fall protection, or a positioning device, which complies with 1926.502; 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. The load end of wire suspension ropes shall be equipped with proper size thimbles and secured by eyesplicing or equivalent means. Gasoline-powered equipment and hoists shall not be used on suspension scaffolds. Wood poles must not exceed 30ft in air. Scaffolds come in 3 different types: Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. 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. a line on a rafter that will be vertical when the rafter is in position, the line on a rafter that will be horizontal when the rafter is in position, the notch where the rafter sits on the wall plate, the part of the rafter that projects out beyond the building line, the total vertical distance the roof rises from the top of the wall, the length of rafter necessary to cover one unit of run; the hypotenuse of the unit triangle, the length of a rafter measured from the seat cut to the ridge, the distance the roof rises vertically for every unit of run, the base of the unit triangle, 12" for all common rafters, the total horizontal distance under a rafter, usually half the span. How many trusses would be required for a 10' x 7' storage shed, assuming 2' on center spacing? The portion of the tail line that hangs free below the scaffold shall be guided or retained, or both, so that it does not become grounded; Each hoist shall be covered with insulated protective covers; In addition to a work lead attachment required by the welding process, a grounding conductor shall be connected from the scaffold to the structure. Counterweights shall not be removed from an outrigger beam until the scaffold is disassembled. "H-clips" are required by code whenever 1/2" osb decking is used and rafters are spaced greater than 16" oc.. 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. Scaffold planks should be scaffold grade lumber or the equivalent. Why then do we worry about high surface temperatures today? Steps and rungs of ladder and stairway type access shall line up vertically with each other between rest platforms. That way, regardless of who wins in this category, I cant get an inferiority complex:-), William Goren is one of the countrys foremost authorities on the American with Disabilities Act (ADA) and the Rehabilitation Act of 1973. Outrigger beams shall be placed perpendicular to its bearing support (usually the face of the building or structure). In these situations, only the planking that the employer establishes is necessary to provide safe working conditions is required. 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. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffold's structural integrity is maintained by the user. a small right triangle found on a set of prints stating the rafters' run and rise, the ratio of rise to the span of the roof, the horizontal member that forms the highest point of the rafters and secures the upper end of the rafters. Except as provided in paragraphs (b)(3) (i) and (ii) of this section, the front edge of all platforms shall not be more than 14 inches (36 cm) from the face of the work, unless guardrail systems are erected along the front edge and/or personal fall arrest systems are used in accordance with paragraph (g) of this section to protect employees from falling. This provision does not preclude the use of systems which are designed to function both as suspension scaffolds and emergency systems. Est=200GPa,=250MPa. Materials being hoisted onto a scaffold must Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. The use of repaired wire rope as suspension rope is prohibited. Proper access must be provided to access the work platform of the scaffold. As a result, the child requires various treatments, including daily monitoring of her blood glucose levels and weekly maintenance of her insulin pump. 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. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. 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