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ANALYSIS OF FRAME LIFTING

ANALYSIS OF FRAME LIFTING

ANALYSIS OF FRAME LIFTING

(OP)
Dears,

I have modeled a frame and analysed for in-process & lifting condition. during in-process i got excessive stress due to temperature load. So i provided 10Kn/mm spring at Fx & Fz to release the same. But what should i do while making concrete foundation to get this spring action.

During lifting analysis i am getting very high axial forces in slings & instability is more. hence I provided releases in slings & frames to make it stable. but sling force reduced to very less value, which shall not be correct. please refer attached models& advise on the supports in both condition.

https://files.engineering.com/getfile.aspx?folder=...
https://files.engineering.com/getfile.aspx?folder=...

RE: ANALYSIS OF FRAME LIFTING

Quote:

I have modeled a frame and analysed for in-process & lifting condition. during in-process i got excessive stress due to temperature load. So i provided 10Kn/mm spring at Fx & Fz to release the same. But what should i do while making concrete foundation to get this spring action.

I don't know that you can. For some cases, I've modeled the stiffness of the anchor bolts (in bending) to get some relief in certain situations (temperature to name one)...but that's about the limits of what you can do for a hard connection. There are some slide plate options for process equipment. (Google teflon slide plates.) I've used them myself.


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