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  1. EfficientPuppy

    Looking for some ideas on a unconventional connection design

    We are looking into doing an angle end plate splice. It feels unconventional to me, but I can't think of a logical reason why it wouldn't work so I am moving forward with it. The problem is that I can not think of a way to design all of it. Gusset/stiffener plate will be added to the angle to...
  2. EfficientPuppy

    Stainless Tank per API 650 Questions

    I'm looking through the design on stainless tank API 650 tanks, and I have a few practical questions for you all. 1. How do you all deal with the requirement for stainless steel course widths being set to 4' (without approval) when the only plate widths available in stainless are 4'. Unless...
  3. EfficientPuppy

    What is "Industry Standard" for locating nozzles?

    There is some discussion in the office on what is the "right way" to locate a nozzle in terms of degrees on the the circumference. What we have found so far is in API 650 starting that north should be 0 degrees and north should be upwards per in L3.2.3, but there doesn't seem to be any mention...
  4. EfficientPuppy

    P-delta effects on Elevated Tank Per AWWA

    I'm asking a question I've came across in the past, but haven't had to deal with until recently. Per AWWA D100-21 13.3.3.2 it says to include P-delta effects for a lateral drift equal to three times the elastic deflection. ASCE 7 has something similar. Correct me if I am wrong here, but they are...
  5. EfficientPuppy

    Adjacent Shell plates of different thicknesses in the same course

    Is there somewhere in any of the code books (API 650/620 AWWA D100) that addresses using a different shell plate for adjacent plates in the same course? I seems to remember reading about it, but I can't remember if its addressed in a code book and I cannot seem to find it.
  6. EfficientPuppy

    Help me understand the API 650 seismic

    I am having a hard time understanding the results of some seismic calcs following API 650. I've asked around in my own sphere of my world through the years and no one has ever had an answer I've found satisfying, so I thought I'd throw this out into the universe and see what kind of response I...
  7. EfficientPuppy

    Wind Drift on a tank

    Any ideas on how to find wind drift on tank analytically without the use of an FEA? I have searched through API 650, API 620, and AWWA D100. I'm pretty sure its not in there. I've been doing tanks for a while, but you never know maybe I've missed it. I'm ready to break out ASME VIII, but I...

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