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  1. piping1971

    Modulus OfSoil Reaction(E')

    there is a formula given in the book "Buried Piping Design" but it needs the modulus of soil reaction, so i want to know if there is formula that relates "subgrade reaction" to modulus of reaction.
  2. piping1971

    Modulus OfSoil Reaction(E')

    Is the a way to calculate the Modulus Of Soil Reaction(E') base modulus of subgrade reaction.Please Help! We are checking the ring deflection of an existing buried water pipe(20" dia.) and based on the formula we need the Modulus Of Soil Reaction(E') but the soil test report provided the...
  3. piping1971

    ALLOWABLE WELD STRENGTH

    How does GTSTRUDL calculate the allowable weld strenght? Does it consider the the allowable of the base metal? We are designing Pipe Support using GTSTRUDL but in the weld analysis it always give the weld allowable as 0.3x72ksi=21.6 whcich is the allowable (E70XX) electrode. Thanks, Ellie
  4. piping1971

    Eccentricity

    What is GT STRUDL recommendation for modeling a joint from Tubesteel center to it outer surface.Would be just another tubesteel or a ridid element which you cam model by specifiying eccentricity.From piping it is usually recommended to model the node from center of pipe to its outer surface as...
  5. piping1971

    6" Dummy Leg Support on 12 " pipe

    Why not change it to 10"Dummy..It is a common practice to use a one size smaller for a dummy support.The recommended size for a 12""run pipe is 8"dummy...and you could even go to a full size but it is better to put a pad.
  6. piping1971

    JIS Flanges table.

    Find someone who works with MHI Desig Office..they have an MHI Standard containing JIS Flanges....I did work for MHI but I did not make my own copy of this MHI Standard.
  7. piping1971

    Shear lug sizing/WRC-107

    You can also use the Nuclear Code Cases N-122 and N-318. These are code cases for Rectangular attachment for Class 1 and Class 2& 3 piping respectively.
  8. piping1971

    Any comments on Piping Stress Analysis Software?

    Caesar II and Autopipe....but I like Autopipe better.... It is easy to model and to interpret results...
  9. piping1971

    PGP File

    I am using an Autocad 2000i,How can I make the system read the PGP File?Some of the aliases in the PGP file works and some are not.I tried a command ""reinit" and click the PGP File but still not working. Can anyone help me how to make the aliases(PGP File) active because I still...
  10. piping1971

    Stress in Pipe due to Shear Lug/Plate

    Ed, Right now I am working on a nuclear project in Taiwan and we analyzed all rectangular or circular attachments on piping and here are the Nuclear Code Cases(ASME SEC III Div. 1) that we used. N-122-2 Procedure for Evaluation of the Design of Rectangular Cross Section Attachmnents on Class 1...

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