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  1. ColinPearson

    Weld ???

    Hey folks. Originally posted in the welding/fastener sub but I wanted to repost here as well. I got one reply there which I am inclined to believe, just double checking. For whatever reason, weld sizing has always been kind of unclear to me. I'm using ASD in the red (14th) Steel Manual and...
  2. ColinPearson

    Simple (dumb) question regarding weld design

    Thank you !
  3. ColinPearson

    Simple (dumb) question regarding weld design

    Hey folks. For whatever reason, weld sizing has always been kind of unclear to me. I'm using ASD in the red (14th) Steel Manual and have a couple questions: 1) EQ.8-5b and EQ.8-8b states that they calculates the "shear per linear inch" due to concentric load and moment; I take it that these...
  4. ColinPearson

    How to cut aluminum with no fire, electricity, or debris.

    Hey folks... I'm looking for a tool that SHOULD exist, but I don't know if it does nor what it's called if it's out there. I need to cut some aluminum plate, 3/16" material. Heat, abrasives and electrical tools are all out due to client restrictions. We are cutting a hole in the roof of an...
  5. ColinPearson

    Lifting Lug with Shell Corrosion (Codeware COMPRESS)

    @ramil thank you for injecting some sense!
  6. ColinPearson

    Lifting Lug with Shell Corrosion (Codeware COMPRESS)

    @oknow read again VIII about designing supports for the maximum imposed load, and perhaps you’ll realize lifting lugs are not supports. You might also read again my response including the words “with all respect” before you came back saying I’m being negligent in my design. At that point it...
  7. ColinPearson

    Lifting Lug with Shell Corrosion (Codeware COMPRESS)

    With all respect, if the shop lifts a vessel after hdyro without draining and they tear up the vessel, then they deserve to eat the cost. This vessel will only have a portion replaced and after R-2 Alteration, we hope to be allowed NDE in lieu of hydro. In any event though, we will remove the...
  8. ColinPearson

    Lifting Lug with Shell Corrosion (Codeware COMPRESS)

    @TomBarsh , thank you, I will look into switching modes as you suggest. @oknow, I'm not sure I follow why the weight during hydro would be important?
  9. ColinPearson

    Lifting Lugs with Vessel Corrosion

    @0707 Agreed. I always have the field remove lugs/trunnions that I've designed. I don't need some yahoo coming behind me in 15 years trying to lift the whole vessel using my lugs/trunnions when I only replaced the head...
  10. ColinPearson

    Lifting Lugs with Vessel Corrosion

    @MJCronin: all the things you suggest I would agree with. I like trunnions myself for most heavy lifts (well, semi-heavy; like 100k# to 500k#). No existing lugs to remove but I would remove them if they were there and start with new ones anyway. Rolled plate is definitely a good reinforcement...
  11. ColinPearson

    Lifting Lugs with Vessel Corrosion

    @SnTMan almost literally laughed out loud at that! Definitely a good skill to know how to lie to your software sometimes!
  12. ColinPearson

    Lifting Lugs with Vessel Corrosion

    @r1655: Agreed that they need to provide information to contractors, but as we don't have the work awarded yet, they're not really our client yet. I think that info would become available if we get the job so we can review/finalize any early plans before any actual work happens. Depending on...
  13. ColinPearson

    Lifting Lugs with Vessel Corrosion

    @r6155 : Probably not available to us as we are bidding the work but don't have it yet. Vessel will ship horizontally but will be installed vertically. @JStephen : If we get this work, we will definitely UT the lug locations. I'll check Bednar for sure. Thanks folks!
  14. ColinPearson

    Lifting Lugs with Vessel Corrosion

    Hey Y'all! Looking for a little guidance on designing lifting lugs here. I do this routinely and the lug calcs (by hand) are no problem for me. That said, I'm not a vessel guy, so the local stress on vessels is a bit outside of my wheelhouse. In this case, the client has indicated they have...
  15. ColinPearson

    Lifting Lug with Shell Corrosion (Codeware COMPRESS)

    Hey Y'all! Looking for a little guidance on designing lifting lugs here. I do this routinely and the lug calcs (by hand) are no problem for me. That said, I'm not a vessel guy, so the local stress on vessels is a bit outside of my wheelhouse. In this case, the client has indicated they have...
  16. ColinPearson

    TEMA Type CEN Exchanger

    Agree that the drawing appears to be NEN. Also agree that the appearance clueing us in to what the rear head type would be but alas, we are working on a proposal with next to zero information. We've asked and gotten nothing so I'm trying to cipher out what I can from the scattered clues we do...
  17. ColinPearson

    TEMA Type CEN Exchanger

    Thank you for the reply. I think that you're correct here; I believe it should be listed as a CEU type. I've heard of these amazing things called drawings, pictures, data sheets, etc ... seems the client doesn't want to come up with any actual info so we've been scratching our heads. Thanks...
  18. ColinPearson

    TEMA Type CEN Exchanger

    Hello World: Hope y'all are safe from COVID! I work in the refinery turnaround industry though I don't usually get involved in estimating jobs. I've been around this stuff for about 15 years and seen plenty happening but my focus is elsewhere so I've got what I think is a fairly dumb question...
  19. ColinPearson

    Fillet Weld Design & Failure Areas

    @DrZoiderwoop - I misspoke a bit in that last one, the D I was talking about was as prescribed by the (5/8)t ... that was the weld size that was larger than the pipe wall was thick. Thank you very kindly for your help and I hope you have a great weekend!
  20. ColinPearson

    Fillet Weld Design & Failure Areas

    @DrZoiderWoop: Firstly, and as before, thank you kindly for your assistance. I have no problem doing the legwork to learn more on my own, but sometimes it's easy to get stuck without a little guidance. I very much appreciate yours here. Given the values for "Cweld" obtained with your method...

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