Reactions of Tower crane.
Reactions of Tower crane.
(OP)
Please see attached file. It provides moment of 1620 k-ft. How he came up with vertical reactions on foundation and also when crane is climbing in building? I divided with moment arm and took care of vertical load but answers ! ! !
I know I should design on this basis and not to worry but still it should be simple statistics to find out.
I am ignoring slew moments etc. for now
I know I should design on this basis and not to worry but still it should be simple statistics to find out.
I am ignoring slew moments etc. for now






RE: Reactions of Tower crane.
RE: Reactions of Tower crane.
BA
RE: Reactions of Tower crane.
Isn't punctuation and the English language great?
My only question regarding the OTM is, is this the worst case of wind and payload, assuming the crane will probably be operating in winds up to 20 or 25 mph?
Mike McCann
MMC Engineering
RE: Reactions of Tower crane.
Are you saying that freestanding is not a good word?
BA,
273.8/2 = 137. But I agree, the diagonal would control.
dgkhan,
You don't need statistics, you need statics.
That's enough pedantry for today. Cheers.
RE: Reactions of Tower crane.
Mike McCann
MMC Engineering
RE: Reactions of Tower crane.
u got me right. I do this though, In 1986 when I started engineering school, took me while before I can call moment and not momentum. U were not there right?
any way, i am trying all possibilites and not getting the same results.
RE: Reactions of Tower crane.
When I checked R = 1620/8 = 202.5k, U = 202.5-126/4 = 171k
However, for C I get 242.5k a little off from 250k noted. But it is in the ballpark, maybe round off error or typo?.