Monorail Impact/Dynamic Factors for Existing Crane

[larsacious]

I am reviewing an existing monorail crane that was built circa the 1970's. The plans indicate reactions but it is unclear if the reactions account for a vertical dynamic load allowance.

Is anyone aware of what impact factors would have been specified either ASCE or CMAA in this era?

 

[TehMightyEngineer]

I'm not confident but based on my experience they used similar vertical and horizontal impact factors to the ASCE 7 ones we use today. Again, that's based on experience but I've never actually hunted down the codes from that era to check so I may be wrong.

Ian Riley, PE, SE
Professional Engineer (ME, NH, VT, CT, MA, FL, CO) Structural Engineer (IL, HI)