Hi everyone,
We are analyzing a flare stack which is comprised of several pipes and plates holding the pipe. There are no plates holding the pipes on the top of the stack. And there are some steel cables to hold the stack upright under wind load.
As my previous threads which is listed below, I used “PDELTA 1 ANALYSIS” and “CHANGE” for each of the load case due to the presence of tension/ compression members. The results are reasonable expect for the top part, whose displacement if very large. This might be because the end of kind of free of support.
communities.bentley.com/.../355984
I am wondering if anyone has ideas about this excessive displacement and how to interpret it.
Thanks a lot,
Fio