Ohio Administrative Code › Title 4123:1 - Division of Safety and Hygiene › Chapter 4123:1-3 - Construction › Section 4123:1-3-10 - Scaffolding

Current through all regulations passed and filed through July 1, 2024
(A)
			 Reserved.
(B) Definitions.
(1) "Bearer" means a horizontal member of a
			 scaffold upon which the platform rests and which may be supported by
			 ledgers.
(2) "Boatswain's chair"
			 means a seat supported by slings attached to a suspended rope, designed to
			 accommodate one employee in a sitting position.
(3) "Brace" means a tie that holds one
			 scaffold member in a fixed position with respect to another member.
(4) "Bricklayer's square scaffold" means a
			 scaffold the platform of which is supported on built-up squares secured to each
			 other by full and continuous diagonal bracing.
(5) "Carpenter's bracket scaffold" means a
			 scaffold the platform of which is supported on triangular braced brackets
			 fastened to the side of the structure.
(6) "Chimney, stack, or tank bracket
			 scaffold" means a scaffold composed of a platform supported by wood or steel
			 brackets, hooked over a steel wire rope which surrounds the circumference of
			 the chimney, stack, or tank.
(7)
			 "Coupler" means a device for locking together the component parts of a tubular
			 metal scaffold.
(8) "Double pole or
			 independent pole scaffold" means a scaffold supported from the base by a double
			 row of uprights, independent of support from the walls and constructed of
			 uprights, ledgers, horizontal platform bearers, and diagonal bracing.
(9) "Elevating assembly" means a mechanical,
			 hydraulic, or other type of mechanism used to elevate and lower a work
			 platform.
(10) "Float or ship
			 scaffold" means a scaffold hung from overhead supports by means of ropes and
			 consisting of a platform having diagonal bracing underneath, resting upon and
			 fastened to two parallel plank bearers at right angles to the span.
(11) "Foot scaffold" means a scaffold used to
			 give additional height, the platform of which does not exceed eighteen inches
			 above the supporting surface.
(12)
			 "Heavy duty scaffold" means a scaffold designed and constructed to carry a
			 working load in excess of fifty pounds but no more than seventy-five pounds per
			 square foot.
(13) "Horizontal wire
			 rope supported scaffold" means a scaffold the platform of which is supported at
			 two or more points by horizontal wire ropes.
(14) "Horse scaffold" means a scaffold or
			 light or medium duty, composed of saw horses
			 supporting a work platform.
(15)
			 "Interior hung scaffold" means a scaffold suspended from the ceiling or roof
			 structure.
(16) "Ladder jack
			 scaffold" means a light duty scaffold supported by brackets attached to
			 ladders.
(17) "Lean to, or shore,
			 scaffold", use prohibited (see paragraph (C)(16) of this rule), means scaffold
			 the platform of which is supported on members consisting of a putlog or bearer,
			 knee braced to two diverging inclined legs that are in a plane substantially
			 transverse to the putlog and that support the outer end of the putlog or
			 bearer, while the inner end of the bearer or putlog rests on or against the
			 structure or on a bearing block attached to the structure.
(18) "Ledgers" or "stringers" means a
			 horizontal scaffold member which extends from post to post at right angles to
			 the putlogs or bearers, supports the putlogs or bearers, and forms a tie
			 between the posts and becomes a part of the scaffold bracing.
(19) "Light duty scaffold" means a scaffold
			 designed and constructed to carry a working load of no more than twenty-five
			 pounds per square foot.
(20)
			 "Manually propelled mobile scaffold" means a portable rolling scaffold equipped
			 with casters.
(21) "Mason's
			 adjustable multiple-point suspension scaffold" means a scaffold having a
			 continuous platform supported by bearers suspended by wire rope from overhead
			 supports, so arranged and operated as to permit the raising or lowering of the
			 platform to desired working positions.
(22) "Maximum rated load" means the total of
			 all loads including the working load, the weight of the scaffold, and such
			 other loads as may be reasonably anticipated.
(23) "Medium duty scaffold" means a scaffold
			 designed and constructed to carry a working load in excess of twenty-five
			 pounds but no more than fifty pounds per square foot.
(24) "Needle beam scaffold" means a
			 cantilevered light duty scaffold consisting of two parallel horizontal beam
			 called needle beams supporting a platform.
(25) "Outrigger scaffold" means a scaffold
			 supported by outriggers or thrustouts projecting beyond the wall or face of the
			 building or structure, the inboard ends of which are secured inside the wall or
			 face of such building or structure.
(26) "Pick, or kick, plank" means a platform,
			 similar in construction to a narrow ladder with light decking strung upon and
			 attached to the rungs, which rests upon horizontal and parallel stringers, or
			 other bearers, and is movable along the course of the stringer.
(27) "Platform" means the temporary flat
			 working surface used to support employees, material, and equipment.
(28) "Putlog" means a scaffold member upon
			 which the platform rests (also see "bearer").
(29) "Runner" means the lengthwise horizontal
			 bracing or bearing members, or both.
(30) "Scaffold" means any temporary elevated
			 platform and its supporting structure used for supporting employees, materials,
			 or equipment.
(31) "Single-point
			 adjustable suspension scaffold" means a manually or power operated unit
			 designed for light duty use, supported by a single wire rope from an overhead
			 support so arranged and operated as to permit the raising or lowering of
			 platform to desired working positions.
(32) "Single-pole scaffold" means platforms
			 resting on putlogs or cross beams, the outside ends of which are supported on
			 ledgers secured to a single row of posts or uprights, and the inner ends of
			 which are supported on or in a wall.
(33) "Stack bracket scaffold" - see "chimney
			 bracket scaffold".
(34) "Suspended
			 scaffold" means a scaffold supported from above, the platform of which is
			 supported at more than two points from overhead outriggers which are fastened
			 to the framework of the structure.
(35) "Tank bracket scaffold" - see "chimney
			 bracket scaffold".
(36) "Tube and
			 coupler scaffold" means an assembly consisting of tubing which serves as posts,
			 bearers, braces, ties, and runner, a base supporting the posts, and special
			 couplers which serve to connect the uprights and to join the various
			 members.
(37) "Tubular welded frame
			 scaffold" means a sectional panel or frame metal scaffold built up of
			 prefabricated welded sections which consists of posts and horizontal bearers
			 with intermediate members.
(38)
			 "Two-point suspension scaffold" or "swinging scaffold" means a scaffold the
			 platform of which is supported by stirrups or hangers at two points to permit
			 raising or lowering, suspended from overhead supports.
(39) "Window jack scaffold" means a scaffold
			 the platform of which is supported by a jack or thrustout which projects
			 through a window opening.
(40)
			 "Working load" means the load on the scaffold imposed by employees, material,
			 and equipment.