can i neglect deflection?
can i neglect deflection?
(OP)
if my monorail on the cantilever is failing in deflection which i know wouldnt affect the serviceability of the monorail in the field, deflection is 0.5 in for 6 feet cantilever.
can i neglect it?
all other check beam passed including bottom flange bending.
thanks,
can i neglect it?
all other check beam passed including bottom flange bending.
thanks,






RE: can i neglect deflection?
I am assuming this is a crane beam. Will the customer be happy with his load bouncing up/down a fairly large amount? I could definitely see getting fine vertical positioning to be difficult, if the beam is too bouncy, as they start/stop the winch. I have experienced this personally, on an overhead crane that had somewhat jerky on/off control. The load could easily bounce +/- 1/4", which made setting it down accurately very difficult.
RE: can i neglect deflection?
I am in an area where we are allowed designs that go to L/60!! While it sure gives us some design leeway - walking on such structures really heights the "pucker" factor. So we try to avoid it or at least dampen it.
RE: can i neglect deflection?
Personally, I would try to limit it to around L/300 (About 1/8"), but that's just me.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: can i neglect deflection?
i dont think it would be a problem in my monorail. it's just a few feet high and they will just use it once every year or few years for equipment maintenance.
RE: can i neglect deflection?
RE: can i neglect deflection?
Yea, you're right. I do the same thing. It's Monday, what can I say?
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: can i neglect deflection?
RE: can i neglect deflection?