(04-11-2019, 09:26 AM)megabytephreak Wrote: I don't buy the hole in the concrete for the crane base. I think that is for an elevator.
I do think the spray painted X in the middle of the pour could be for the crane though, with the four circles being the four corners of the tower structure. What I don't understand is why they didn't mount it directly into yesterday's pour. Instead it looks like they will be doing some sort of extra pad for it on top.
I've never been involved in pouring a crane base but a lot of big electrical motors get installed on a concrete base but with shimmed up with a gap and then they are packed with a special non-shrink grout between the motor and concrete. Column bases are done in a similar way, the bolts are there for erection purposes but the grout is what the columns actually sit on. I have no idea if that X is where the crane is going... just spitballing.