Why does the support at the very top bear the greatest stress in vertically installed pipes?
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It is a DN600 liquid pipeline; the density of the fluid inside it is 1300 kg/m3, and the temperature is at room level. The pipeline rises vertically by about 25 meters. Three supports are installed along the vertical section. There is one pipe outlet at point 10, and one +Y-shaped support each at points 30, 40, 50, and 60. May I ask: why is the vertical force exerted on point 50 the greatest?
I have always thought that either the bracket at the bottom, point 30, experiences the greatest stress, or the bracket in the upper horizontal section, point 80, experiences the greatest stress. The vertical pipe supports should bear only the weight of the bare pipes, and not the weight of the fluid inside them! However, the simulation results show that 50 points experiences the greatest force, so I would like to ask why this is the case – could it be that my understanding is incorrect?
I’m not sure if this can help you
In fact, the pipeline is suspended by node 50, rather than supported by node 30.
Is this from that manual? I’d like to check the original text, thank you
Yes, that’s what the calculation shows. I’m really curious to know why, or in which book there’s a similar explanation! The power pipeline manual contains only one sentence, stating that the load is shared equally between the two supports
It should be in any specification for bracket installation. I’m referring to SH/T3073
This is a setting you determined yourself; 50 is the load-bearing capacity
30/40/50 are all +Y brackets; there is no issue with the settings