HSS Truss Runway for Crane
HSS Truss Runway for Crane
(OP)
I have a client that basically wants a 90ft span runway beam for a 7.5 ton crane. I'm thinking of making it out of an HSS truss. I know I have to add lateral bracing, but other than that are there any major pitfalls anyone sees? Has anyone done something similar to this before?
I'm a little worried about fatigue, although this isn't a huge crane and not in constant use.
I'm a little worried about fatigue, although this isn't a huge crane and not in constant use.






RE: HSS Truss Runway for Crane
Dik
RE: HSS Truss Runway for Crane
RE: HSS Truss Runway for Crane
BA
RE: HSS Truss Runway for Crane
Dik
RE: HSS Truss Runway for Crane
I know it can be done, but for crane runways, I just don't want to depend on welds which can't be seen from both sides.
RE: HSS Truss Runway for Crane
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: HSS Truss Runway for Crane
With the welding, would it be possible to use a thicker thickness HSS and specify butt-welds?
RE: HSS Truss Runway for Crane
RE: HSS Truss Runway for Crane
RE: HSS Truss Runway for Crane
I don't see the need for CJP welds. What is wrong with using fillets? I know the connections might require the chord and web member sizes to change somewhat. I still have to go through all the HSS truss connection stuff in Chapter K. For now this is just preliminary for feasibility.
RE: HSS Truss Runway for Crane
BA
RE: HSS Truss Runway for Crane
RE: HSS Truss Runway for Crane
You will have to do the fatigue analysis to determine if they will be adequate. (Or determine that fatigue is not an issue due to the low duty cycle.)