Crane wind

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Oregon Occupational Safety and Health Division Oregon Administrative Rules AO 1-2019 Division 3 - (ii) Trolley travel deceleration device. The trolley speed must be automatically reduced prior to the trolley reaching the end limit in both directions. Temporary alternative measure: The employer must post a notice in the cab of the crane notifying the operator that the trolley travel deceleration device is malfunctioning and instructing the operator to take special care to reduce the trolley speed when approaching the trolley end limits. - (iii) Boom hoist deceleration device. The boom speed must be automatically reduced prior to the boom reaching the minimum or maximum radius limit. Temporary alternative measure: The employer must post a notice in the cab of the crane notifying the operator that the boom hoist deceleration device is malfunctioning and instructing the operator to take special care to reduce the boom speed when approaching the minimum or maximum radius limits. - (iv) Load hoist deceleration device. The load speed must be automatically reduced prior to the hoist reaching the upper limit. Temporary alternative measure: The employer must post a notice in the cab of the crane notifying the operator that the load hoist deceleration device is malfunctioning and instructing the operator to take special care to reduce the load speed when approaching the upper limits. - (v) Wind speed indicator. A device must be provided to display the wind speed and must be mounted above the upper rotating structure on tower cranes. On self erecting cranes, it must be mounted at or above the jib level. Temporary alternative measures: Use of wind speed information from a properly functioning indicating device on another tower crane on the same site, or a qualified person estimates the wind speed. - (vi) Load indicating device. Cranes manufactured after November 8, 2011 must have a device that displays the magnitude of the load on the hook. Displays that are part of load mom…

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (ii) The crane must be standing on track which is level within 1% grade. - (iii) Radius of the load is the horizontal distance from a projection of the axis of rotation to the rail support surface, before loading, to the center of vertical hoist line or tackle with load applied. - (iv) Tipping loads from which ratings are determined must be applied under static conditions only, i.e., without dynamic effect of hoisting, lowering, or swinging. - (v) The weight of all auxiliary handling devices such as hoist blocks, hooks, and slings must be considered a part of the load rating. - (c) Stipulations governing the application of the values in (1)(a) of this section for crawler, truck, and wheel-mounted cranes must be in accordance with Crane Load-Stability Test Code. Society of Automotive Engineers (SAE) J765. Note: The effectiveness of these preceding stability factors will be influenced by such additional factors as freely suspended loads, track, wind, or ground conditions, condition and inflation of rubber tires, boom lengths, proper operating speeds for existing conditions, and, in general, careful and competent operation. All of these must be taken into account by the user. - (2) Rated capacity chart . You must post a chart indicating the manufacturer's rated capacity at all operating radii for all permissible boom lengths and jib lengths with alternate ratings for optional equipment affecting such ratings in all mobile type cranes. Rated capacity charts must be readily visible to the operator in the normal operating position. - (3) Inspection classification . Initial inspection. You must inspect all new and altered cranes prior to initial use to ensure compliance with provisions of these standards. - (4) You must ensure that all hooks are of the s…

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Oregon Occupational Safety and Health Division Oregon Administrative Rules AO 3-2019 - (C) The load chart contains the wind velocity operating limits. - (3) Mobile Cranes Mounted on Barges. - (a) When a mobile crane is mounted on a barge, the rated load of the crane shall not exceed the original capacity specified by the manufacturer; - (b) A load rating chart, with clearly legible letters and figures, shall be provided with each crane, and securely fixed at a location easily visible to the operator; - (c) When load ratings are reduced to stay within the limits for list of the barge with a crane mounted on it, a new load rating chart shall be provided; - (d) Mobile cranes on barges shall be positively secured. - (4) Permanently Mounted Floating Cranes and Derricks. - (a) When cranes and derricks are permanently installed on a barge, the capacity and limitations of use shall be based on competent design criteria; - (b) A load rating chart with clearly legible letters and figures shall be provided and securely fixed at a location easily visible to the operator; - (c) Floating cranes and floating derricks in use shall meet the applicable requirements for design, construction, installation, testing, maintenance, and operation as prescribed by the manufacturer. Stat. Auth.: ORS 654.025(2) and 656.726(4). Stats. Implemented: ORS 654.001 through 654.295. Hist: WCB Admin. Order, 11-1974, f. 3/20/74; ef. 4/15/74. WCD Admin. Order, Safety 3-1981, f. 4/20/81, ef. 6/1/81. OR-OSHA Admin. Order 13-1993, f. 8/20/93, ef. 11/1/93. ## 1910.183 Helicopters - (a) Reserved. - (b) Briefing. Prior to each day's operation a briefing shall be conducted. This briefing shall set forth the plan of operation for the pilot and ground personnel. - (c) Slings and tag lines. Loads shall be properly slung. Tag lines shall be of a length that will not permit their being drawn up into the rotors. Pressed sleeve, swedged eyes, or equivalent means shall be used for all freely suspended loads to p…

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Division 2 AO 3-2019 Oregon Administrative Rules Oregon Occupational Safety and Health Division OR-OSHA Admin. Order 4-1997, f. 4/2/97, ef. 4/2/97. ## [redacted phone] Oregon Rules for Hammerhead Cranes ## (1) Definition. Hammerhead Crane - Lifting machine consisting of a tower (mast) with an upperstructure that rotates and includes a load jib (boom) with trolley extending horizontally and a counterweight jib extending in the opposite direction, neither of which is arranged for luffing. The trolley on the load jib traverses the length of the jib and contains the sheaves and accessory parts that comprise the upper load block. The lower load block is suspended from the trolley. - (2) Hammerhead Cranes - General. - (a) Adequate clearance shall be maintained between moving and rotating structures of the crane and fixed objects to allow the passage of employees without harm; - (b) Employees required to perform duties on the horizontal boom of hammerhead tower cranes shall be protected against falling by guardrails or by safety belts and lanyards attached to lifelines in conformance with OAR Chapter 437, Division 2/I, Personal Protective Equipment; - (c) Buffers shall be provided at both ends of travel of the trolley; - (d) Cranes mounted on rail tracks shall be equipped with limit switches limiting the travel of the crane on the track and stops or buffers at each end of the tracks. Cranes with self-contained power plants shall be equipped with warning devices, and stops or buffers at each end of the track; - (e) All hammerhead cranes in use shall meet the applicable requirements for design, construction, installation, testing, maintenance, inspection, and operation as prescribed by the manufacturer and to ensure compliance with the rules in this division; - (f) The employer shall provide a wind velocity device which will give a visible or audible alarm to the crane operator at a predetermined wind velocity; and - (g) The employer shall ensure that: - (A) The win…

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## Structural testing and examination 105 (1) An employer must ensure that all structural and rigging components of a tower crane undergo non-destructive testing under the direction and control of a professional engineer in accordance with the manufacturer's specifications - (a) as close as reasonably practicable to the project site, - (b) before the crane is used for the first time in a project in Alberta, and - (c) if the crane is moved from project to project, before it is used after the move. 105 (2) If a tower crane is in operation on a project for more than one year from the date on which the crane starts operating, the employer must ensure its structural components are examined under the direction and control of a professional engineer after each period of 2000 operating hours or 12 months after the date on which it starts operating, whichever occurs first. 105 (3) The employer must ensure that the results of the testing or examination required by subsections (1) and (2) are certified by a professional engineer in a report that clearly identifies the crane and the components to which the information relates. ## Wind and temperature limitations 106 (1) An employer must ensure that operation of a tower crane is stopped when the wind velocity at the elevation of the crane exceeds the limit recommended in the manufacturer's specifications or, if there are none, in specifications certified by a professional engineer. 106 (2) An employer must ensure that operation of a tower crane is stopped when the temperature in the vicinity of the crane is below the limit recommended in the manufacturer's specifications or, if there are none, in specifications certified by a professional engineer. ## Multiple cranes - 107 If 2 or more tower cranes are erected in such a manner that the radii of operations overlap, - (a) the employer must ensure that operators are provided with a visual or auditory means of communicating with each other, - (b) the operators must be able …

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Semigantry crane . A gantry crane with one end of the bridge rigidly supported on one or more legs that run on a fixed rail or runway, the other end of the bridge being supported by a truck running on an elevated rail or runway. Side pull . That portion of the hoist pull acting horizontally when the hoist lines are not operated vertically. Span . The horizontal distance center to center of runway rails. Standby crane . A crane which is not in regular service but which is used occasionally or intermittently as required. Stop . A device to limit travel of a trolley or crane bridge. This device normally is attached to a fixed structure and normally does not have energy absorbing ability. Storage bridge crane . A gantry type crane of long span usually used for bulk storage of material; the bridge girders or trusses are rigidly or nonrigidly supported on one or more legs. It may have one or more fixed or hinged cantilever ends. Switch . A device for making, breaking, or for changing the connections in an electric circuit. Trolley . The unit which travels on the bridge rails and carries the hoisting mechanism. Trolley travel . The trolley movement at right angles to the crane runway. Truck . The unit consisting of a frame, wheels, bearings, and axles which supports the bridge girders or trolleys. Wall crane. A crane having a jib with or without trolley and supported from a side wall or line of columns of a building. It is a traveling type and operates on a runway attached to the side wall or columns. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), § 296-24-[redacted postal code], filed 12/01/2015, effective 01/05/2016. Order 73-5, § 296-24-[redacted postal code], filed 5/9/73 and Order 73-4, § 296-24-[r…

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ bridge operator at a predetermined wind velocity. If the clamps act on the rail heads, you must ground off any beads or weld flash on the rail heads. - (b) You must base calculations for wind pressure on outside overhead traveling cranes on not less than 30 pounds per square foot of exposed surface. - Rated load marking . You must plainly mark the rated load of the crane on each side of the crane, and if the crane has more than one hoisting unit, each hoist must have its rated load marked on it or its load block. You must ensure that the rated load marking is clearly legible from the ground or floor. ## Clearance from obstruction . - (a) You must provide and maintain minimum clearance of 3 inches overhead and 2 inches laterally between crane and obstructions in conformity with Specification No. 61 Crane Manufactures Association of America, Inc., [redacted street address]., Suite 201, Charlotte, NC [redacted postal code]. - (b) Where passageways or walkways are provided you must not place obstructions so that safety of personnel will be jeopardized by movements of the crane. - Clearance between parallel cranes . If the runways of two cranes are parallel, and there are no intervening walls or structure, you must ensure that there is adequate clearance provided and maintained between the two bridges. - Designated personnel . You must ensure that only designated personnel are permitted to operate a crane covered by this section. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 18-03-159 (Order 17-24), § 296-24-[redacted postal code], filed 01/23/2018, effective 02/23/2018. Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), § 296-24-[redacted postal code], filed 12/01/2015, effective 01/05/2016. Statutory A…