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  • Users: reesh
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  1. reesh

    Section VIII Div. 2 Part 5 - Hydrotest

    Hello, I'm looking for some help on theoretical background on a subject. I'm performing an elastic FE analysis to Part 5 of Section VIII, Div. 2. I have a government reviewer (Canadian CRN stuff, another long story) who is insisting that analyzing for hydrotest conditions is required under...
  2. reesh

    horizontal bracing

    Hello, We're starting to use SAP2000 for design of framed pipe supports to building code requirements (NBCC). I've got horizontal bracing in my design but the program keeps assessing it as if it is a beam. I can't get it to consider it a brace. I'm not having this problem with the lateral...
  3. reesh

    Canadian Building Code (2005) Seismic Load

    Hello, I'm relatively new to using STAAD but I seem to be having some trouble generating the loads under for NBCC 2005 (Canadian Building Code) for seismic loading. I am trying to enter them in using the setup explained in the technical file para. 5.31.2.11 but am not having much luck. The...
  4. reesh

    N285.0 Overpressure Protection

    Hi, I have a question about what a certain clause means in N285.0-08. The clause has to do with the information required in the overpressure protection report. The clause is 7.7.7(c)(iv)(3) and asks for "efect of variation in operating time". I'm not sure what this one means. I think I've...
  5. reesh

    A182 F904L flanges

    Hi, I'm having a problem and I'm hoping someone on the board can give me a hand. I've got a client with a design which has a flanged item constructed of A182 904L for a B31.3 component. I've looked through the allowables from App A and not found it and also Section II Part D with no luck...
  6. reesh

    Expansion joint question

    Hi, I'm currently modeling a piping system with several expansion joints in it. The expansion joints are covered by metal braided hose to prevent excessive longitudinal expansion. I'm having trouble coming up with a way to model the hose. I've modeled expansion joints with tie rods a number...
  7. reesh

    VIII Appendix 26 Bellows Calculations

    I was wondering if anyone has used the external pressure calculation for unreinforced bellows in Section VIII, Appendix 26, 26-6.5? There is a disagreement about whether when the Code asks to use the absolute value of the pressure in the internal pressure equations whether it means psia or the...
  8. reesh

    Crack Propagation in ANSYS

    I'm going to be working on a problem involving the propagation of a postulated crack in an unpressurized cylinder due to cyclic loading. I'm going to need to calculate the growth rate and the point at which the crack becomes unstable. I've never performed an analysis such as this in ANSYS and...
  9. reesh

    B31.3 Tri Clamp connection

    Hi, I'm having a little trouble. I got a set of transmitters that are to be use in a B31.3 system. I don't have much experience with these types of connections and I've gone through B31.3 looking for some sort of reference to them, but had no luck. Does anyone know if there is a reference to...
  10. reesh

    ASME Code Case 2148 - Nozzles

    I'm currently dealing with a Sect VIII Div. 1 vessel that has 2" and 1.5" nozzles which fall under this Code Case. They are made from SA-479 316L and their wall thicknesses are less than their NPS Sch 40 counterparts (they are close to the Sch 5 thicknesses). The nozzles were not manufactured...
  11. reesh

    Flange Literature

    I was wondering if anyone had any suggestions for useful literature/text books for the design of flanges? I work in the pressure vessel field (both ASME III/VIII) and am looking to obtain more useful information. I already have Taylor Forge Bulletin 502 btw. Thanks for any help any of you can...
  12. reesh

    Flange Gasketing

    Hi, I'm trying to evaluate a flange using Bluegard 3000 gaskets at 1/16" thick. I can't find the m and y values for this type of gasket. Can anyone suggest where I might find this info? Thanks!
  13. reesh

    Square Flange Problem - VIII, App. 2, 2-10

    I have a square flange that has to be analysed to B31.1. I'm trying to use Sect. VIII, App. 2, 2-10 for noncircular flanges. The problem I get is that when I apply that method to the flange, the outer diameter A is smaller than the bolt circle diameter C. Is there another method to analyse...

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