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AutoPIPE Wiki "Code Comb" tab Questions
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    • -Pipe and Vessel Stress Analysis - Wiki
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          • 01. Animate Load cases - AutoPIPE
          • 02a. Load Case Descriptions in AutoPIPE
          • +02b. Static Analysis in AutoPIPE
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          • +02e. "Hydrotest" - AutoPIPE Load Case
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          • 02v. "Steam Relief" - AutoPIPE Load Case
          • +02w. "Thermal Transient Analysis" (TTA) - AutoPIPE Load Case
          • +03a. "Gravity" - AutoPIPE Load Case
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          • 03c. "Temperature" - AutoPIPE load case
          • +03d. "SAM" (Seismic Anchor Analysis) - AutoPIPE load case
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          • 04. Results From Loads and Load Sets Not Answered By Piping Code Calculations
          • -05. Combination Load Cases (Tools> Combinations dialog)
            • -"Code Comb" tab Questions
              • 01. How to define the allowable for all code combination in AutoPIPE?
              • 02. What is the M/S column in AutoPIPE's output reports
              • 03. When creating a new AutoPIPE User defined combination on the Code Comb tab, is the order of the load cases / combinations of any consequence?
              • 04. How does AutoPIPE know which of the loads in the “User Code Combination” window is to be considered an Occasional Load(s)?
              • 05. Are predefined stress category maximums [i.e. (LONG), (Sus), (exp), (0cc), (hoop) ] calculated across all analysis set regardless of load cases turned ON / OFF in any one analysis set in an AutoPIPE model?
              • 06. How to get the range of T1, T2, T3, ...,Tn thermal load cases. The option RANGE is missing from actual AutoPIPE Capabilities (Combination Method).
              • 08. Why does AutoPIPE's DNV code combination for collapse P1..Pn use only T1..Tn load case and not P1..Pn load case?
              • 10. Safety Factors in AutoPIPE
              • 11. Code combinations do not appear the same in 2 different models that are identical: Equiv1: GRT1 vs Equiv1 in AutoPIPE, why?
              • 12. How to correctly add a USER defined N-755-1 (ex. GR + Max P + T1) Code Combinations in AutoPIPE?
              • 13. How to see non-code information on Code combinations using AutoPIPE?
              • 15. Considering that E2=-E1 why are the combinations GRTP2-E1 & GRTP2+E2 results so not the same results for these code combinations in AutoPIPE?
              • 16. How does the program determine the Young's modulus value used when calculating the bending stress due to the combined moments from multiple load cases in a User defined combination in AutoPIPE?
              • 17. Is Longitudinal Pressure stress included in my Code combinations when using AutoPIPE?
              • 18. Why is there no sustain Code combination with Gravity, Pressure, and Temperature in AutoPIPE?
              • 20. How are the moment results for the selected Combination Method (ex. SRSS, ABS, etc..) calculated in AutoPIPE?
              • 21. Calculate SAM and Expansion stress values independently, and then add these two stress values together in a single combination using AutoPIPE
              • 22. SAM cases are not included in AutoPIPE's code combination 2Mb2+ 2Mce, only the seismic force are being evaluated, why?
            • +"Non-Code Comb." tab questions in AutoPIPE
            • "User Allowable" Load Case tab questions in AutoPIPE
            • +General questions not covered by AutoPIPE's Code / Non-Code combination WIKI pages
            • Is this a Valid combination using AutoPIPE?
            • +Load Combinations "Combination Options" feature in AutoPIPE
          • +06. Non-linear Load Sequencing Explained
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     Questions about this article, topic, or product? Click here. 

    "Code Comb" tab Questions

    The "Code Compliance" grid displays the combination set defined for piping code compliance (both the default combinations and user-defined sets). Any default code combination may be modified, deleted or reset and any new user combination created and modified in the same grid.

    User Code Combinations dialog

    Comments, Questions, & Answers:

    Item #1: Define allowable for all code combination

    Item #2: M/S column

    Item #3: Is the order of the load cases / combinations of a User defined combination of any consequence?

    Item #4: Which Code combinations are considered an Occasional Load(s)?

    Item #5: Are predefined stress category maximums [i.e. (LONG), (Sus), (exp), (0cc), (hoop) ] calculated across all analysis set regardless of load cases turned ON / OFF in any one analysis set?

    Item #6: Range of T1, T2, T3, ...,Tn thermal load cases

    Item #7: Find the MAX load case from a group of load cases

    Item #8: DNV code combination for collapse P1..Pn use only T1..Tn load case and not P1..Pn load case

    Item #9: Valid combination?

    Item #10: Allowable calculation with safety factore

    Item #11: Code combinations do not appear the same in 2 different models

    Item #12: Correctly add a USER defined N-755-1 (ex. GR + Max P + T1) Code Combinations

    Item #13: See Non-code information on Code combinations results

    Item #14: Evaluate using the correct allowable for each Nuclear Service Level?

    Item #15: Considering that E2=-E1, why are the combinations GRTP2-E1 & GRTP2+E2 results not the same?

    Item #16: Determine Young's modulus value used when calculating the bending stress

    Item #17: Is Longitudinal Pressure stress included in Code combinations?

    Item #18: Sustain Code combination with Gravity, Pressure, and Temperature

    Item #19: No Max Range combination was displayed for HDPE piping

    Item #20: Calculate moment results (Ma , Mb, Mc) for the selected Combination Method (ex. SRSS, ABS, etc..)

    Item #21: Calculate SAM and Expansion stress values independently, and then add these two stress values together

    Item #22: SAM cases are not included in code combination, only the seismic force are being evaluated

    See Also

    Combination Load Cases (Tools> Combinations dialog)

    Bentley AutoPIPE

    • Load Case
    • Code Combinations
    • code
    • AutoPIPE
    • COMBINATION
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    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Wed, Aug 21 2013 5:23 PM
    • Mike Dattilio Last revision by Bentley Colleague Mike Dattilio
    • When: Thu, Jan 12 2023 10:37 PM
    • Revisions: 61
    • Comments: 0
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