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Bob, I reviewed §18.5.6.1 which tells me that as long as the overall length of the branch lines you're longitudinally bracing don't exceed 80' overall, and §18.5.6.4 which lets me know what the end of the pipe to the longitudinal brace doesn't exceed 40' the single longitudinal brace on the branch line would permit the weight of the water filled branch line to be omitted from the Fpw on the main, per §18.5.9.6. From the sketch you've provided, I would conclude the single longitudinal brace on each branch line would permit the omission of that load against the main. sincerely, Ken Wagoner, SET
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On 5/6/2026 10:03 AM, Bob Knight wrote:
I have a situation where there is a high Cp value of 1.17. The project is an old wood structure requiring |
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