Calculation length for external pressure of tower
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I would like to ask everyone: when a tower device is divided into sections, under negative pressure conditions, should the calculation length for external pressure take into account the entire length of the tower, or only the length of each individual section? Personally, I think the entire length of the tower should be considered, as the whole tower is subject to pressure. I hope everyone can share their opinions so that we can learn together!
Overall, unless there is a diameter change for reinforcement
Overall, the spacing can vary, but at areas where the wall thickness changes, it should be set to the thinner value.
Just because there is a section with a changing diameter does not mean it can be used as a support line
The calculation length for external pressure is considered as a whole; if the tower is divided into sections, it is possible to calculate the overall allowable external pressure for that section of the cylinder (the external pressure for such a section is determined based on the length of that section). It is checked whether this section can be treated as a single support element. This process is repeated until a section of the cylinder that cannot be considered as a single support element is reached, at which point reinforcement rings are added to that section