Wheel loading analysis on crane runnway beam
Wheel loading analysis on crane runnway beam
(OP)
Can anyone lead me to a reference that gives allowable stresses on an I-beam flange due to wheel loading from a bridge crane end truck.
Thanks in advance for any help.
Thanks in advance for any help.
Tony Billeaud
Mechanical Engineer






RE: Wheel loading analysis on crane runnway beam
RE: Wheel loading analysis on crane runnway beam
http://ww
RE: Wheel loading analysis on crane runnway beam
Check Crane Manufacturers Association of America (CMAA) Specification #70 and/or #74. Spec 70 is for multiple girder top running cranes, #74 is for top or under running single girder cranes.
Both documents give load combination criteria and allowable stress ranges based on Crane Class.
Website... http://www.mhiastore.org/category.cfm?Category=39
Cheers,
CanuckMiner
RE: Wheel loading analysis on crane runnway beam
RE: Wheel loading analysis on crane runnway beam
Thanks for the link. Can you give any input on the difference between the formulas used on the website you provided and those in section K.1.2 and K.1.3 of the AISC ASD spec.
Thanks,
Tony Billeaud
Mechanical Engineer
RE: Wheel loading analysis on crane runnway beam
0.4*(Pbf/Fyc)^1/2
Where Fyc is the column yield stress in ksi, and Pbf is the computed force to the flange times 5/3.
K1.3 is for local web yielding, if you are away from the end of the member by more than the depth of the member, the following applies:
R/(tw*(N+5k) < 0.66*Fy
R is the reaction
tw is the web thickness
N is bearing length
and k is distance from outer face of flange to web toe of fillet.
This is from AISC ASD 9th edition. You can get the latest spec from AISC's website for free. It's updated for strength level design rather than allowable stress methods.