Monorail design safety factors
Monorail design safety factors
(OP)
Searching for standard to use for safety factor in Industrial monorail design re-rating.
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Monorail design safety factors
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RE: Monorail design safety factors
AISC Design Guide #7 - Industrial Buildings
CMAA 70 & CMAA 74 - Crane Manufacturer's of America Specification
AISE Technical Report #13
RE: Monorail design safety factors
1. American National Standards Institute (ANSI): MH27.1 - "Underhung Cranes and Monorail Systems"
2. American Institute of Steel Construction (AISC) 9th Edition Allowable Stress Design (ASD) Manual (1989)
3. Allowable Bending Stresses for Overhanging Monorails" - by N. Stephen Tanner - AISC Engineering Journal (3rd Quarter, 1985)
4. Crane Manufacturers Association of America, Inc. (CMAA) - Publication No. 74 - "Specifications for Top Running & Under Running Single Girder Electric Traveling Cranes Utilizing Under Running Trolley Hoist" (2004)
5. Design of Monorail Systems" - by Thomas H. Orihuela Jr., PE (www.pdhengineer.com)
You need to account for impact loading, gravity load, trolley, hoist and chain bucket weights, lateral loading. Special attention must be paid if you have a cantilever and what effective length to use. There are several schools of thought on this one. Local stresses in teh beam flange are critical as well.
Regards,
Lutfi