Problem with initial displacement input when piping system is interrupted
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When the branch pipe and the main pipe are calculated separately, which working conditions should be considered for the displacement of the branch pipe at the main pipe node? This is how I did it. I don’t know if it is right. I did not consider the displacement of the interruption point under the HYD and SUS working conditions. I only considered the initial displacement of the branch pipe working condition combination under OPE.: WW+HP HYD W+D1+T1+P1 OPE Design W+D2+T2+P1 OPE Operation W+D3+T3+P1 OPE Minimum temperature W+P1 SUS W+D2+T2+P1+WIN1 OPE W+D2+T2+P1+WIN2 OPE W+D2+T2+P1+U1 OPE W+D2+T2+P1-U1 OPE W+D2+T2+P1+U2 OPE W+D2+T2+P1-U2 OPE where D1, D2, and D3 are the displacements of the interruption points of the main tube at design, operation, and lowest temperatures.
I saw that the previous reports were combined with the above working conditions, but I felt that the displacement of the main pipe interruption point under the SUS working condition would also affect the SUS working condition of the branch pipe. I was a bit confused. In addition, if the displacement caused by the foundation settlement, the SUS should be W + P1 + D1. D1 is the foundation settlement. This post was last edited by ashhsiang on 2009-3-30 11:57 ]
This problem should be encountered frequently. Let’s discuss it.