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  1. ahunt

    Large Gates

    Good Morning, Does anyone know where I can find an anchorage assembly design standard for large flood gates? I'm not finding much on the Army Corps of Engineers website and these gates have large ball and socket joints (pintles). There more than just structural engineering that go into these.
  2. ahunt

    Large Gate Pintles and Hinges

    Good Morning, I've come across some Corps of Engineers drawings for miter and sector gates. They show Pintles and Hinges attaching these huge flood protection gates to the concrete walls. Does anyone know of a design standard for these hinges and pintles? The pintles are large ball and socket...
  3. ahunt

    Storing half size hard copies

    Good Morning, Half size drawings (Typically 11x17 here) are pretty handy, but they just end up in one large stack. Anyone have a good idea for storing these in such a way that you can get to them fast?
  4. ahunt

    Heat Treat Pre-engineered building column

    Thanks for all the help. Replacement seems to be the only real way to go. A
  5. ahunt

    Heat Treat Pre-engineered building column

    We have a building that has been hit by an excavator. The web of the building wide flange column has been buckled, and the flange displaced out of it's plane. Anyone ever use heat straightening to fix something like this? AISC claims it's more of an art than science. I'm not sure if this is...
  6. ahunt

    Wall Reinforcement shadow lines

    Good Morning, I have an odd question. We have a job that includes a wall with 2" of over on the outer most rebars. After form striping, you can see shadow lines of the resteel in the walls. Anyone else run into this? I have a couple ideas, but they seem far fetched. A.
  7. ahunt

    Water Tank Pressure Relief

    In ohio the prv's freeze up. We've seen tanks float in the early spring when the prv's are froze and large rain events take place. We have used uplift piles and rock anchors, and in Florida, we just use mass (thick members).
  8. ahunt

    Wheel loading analysis on crane runnway beam

    K1.2 refers to local flange bending, it's a check to see if you need to provide stiffeners on a column due to a gusset pulling at the flange. The stiffeners are required according to k1.2 if the flange is thinner than 0.4*(Pbf/Fyc)^1/2 Where Fyc is the column yield stress in ksi, and Pbf is...
  9. ahunt

    Wheel loading analysis on crane runnway beam

    Check out the Modern Steel magazine on the AISC website. Here's a link to an artical in steel exchange from December 1999 on calculating bottom flange capacities. http://www.aisc.org/MSCTemplate.cfm?Section=Steel_Interchange2&Template=/CustomSource/Faq/SteelInterchange.cfm&FaqID=1976
  10. ahunt

    SE 2

    I don't know if I passed it, but I thought the Seismic and Wind examples by Alan Williams did a nice job. From what I can tell, you just need to know all the referenced codes pretty well. I also think the NCEES examples do a good job. In the end, it all comes down to prayer. A.
  11. ahunt

    SE 2

    I was so glad to be able to avoid bridges! I wonder though, if Oct will go to AISC 13th, and IBC 2006, as well as AISC 7-05? That will be ugly if we have to re take it.
  12. ahunt

    SE 2

    If I recall correctly, a few years ago the passing rate was under 10% for the SE 2. I see last October the passing rate of first timers was over 60%. The structural 1 pass rates for first timers was 47%. Maybe they are a little easier now?
  13. ahunt

    SE 2

    I'm from Ohio. Funny thing is, I felt better about the seismic than anything else :-)
  14. ahunt

    SE 2

    Hi Guys, I took the SE 2 on Friday. I went in with the attitude that I need to provide them a good final design for the questions. I felt pretty beatup and didn't have enough time to finish with the quality I'd like. In some panic areas, I think I missed some things too. How did you guys...
  15. ahunt

    Uplift on Underground Slab

    I have a theory question I hope you folks can help answer. We often have slabs under uplift conditions due to high groundwater (out to out of exterior walls footprint under uplift) . We extend the edges of the slab outward to engage the soil as part of the "righting" gravity load, this soil...
  16. ahunt

    Waterstops--Cast-in vs Synkoflex

    We spec both Synko flex and PVC types. For the most part, a critical joint gets PVC. Sometimes you want to have a portion of a basin down and no water rushing under common walls. This is a good location for Synko Flex. Also, this stuff doesn't work all that great in vertical applications...
  17. ahunt

    SE 2 Analysis

    Morning! I'll be taking the SE 2 pretty soon. Anyone out there know how much analysis is on the test? The NCEES practice test only shows a Portal Method (not hard), but I'm worried about something more agressive. Any throughts? For now I'll go through all the code stuff, and then backtrack to...
  18. ahunt

    Vibration on Composite Floor

    The machine has internal drums that spin about a horizontal axis. I’ll find out more about the isolators, I know they help reduce reactions, but I don’t know if that also affects the frequency of the reduced reactions. The client has an identical machine on a mezzanine about 20 feet away...
  19. ahunt

    Vibration on Composite Floor

    Good Afternoon, I have a unique problem to ponder. I have a floor system supporting a 29,000 lb piece of equipment. The equipment usually runs at a relatively high RPM (about 2200 RPM) and does have isolators. The equipment rests on two joists 20 feet long that in the end have a second moment...
  20. ahunt

    Mylar Ink - Rubber Stamping

    Hi Everyone! I'm sealing drawings, unlike our normal proceedure, the client wants film/mylar prints. I'm using Sanford 58701 black ink and my stamp, I doubt it'll last. Anyone else wet seal mylar? What ink is out there? Thanks, -A.

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