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  1. JoelTXCive

    Bolt force in sleeve connection

    Can the annular region between the steel and aluminum sleeve be grouted? (similar to a mechanical rebar splicer) Then the screws will very clearly not be doing anything other than keeping the sleeve from sliding.
  2. JoelTXCive

    Bolt Hole Bearing Concerns Under Purely Axial Eccentric Load in Timber Connections

    what's a "purely axial but eccentric load"? :) I second the vote for a sketch.
  3. JoelTXCive

    Stepped Footing Design

    Hopefully you do not have too many steps in your wall. On very long walls they can save money but on short walls (20ft or less), then I think they are more trouble than they are worth. The contractor has a more complicated form setup and has to do multiple pours usually. With that being...
  4. JoelTXCive

    House Review - Site Visit without report?

    Also, in your email.... It's important to use good phrasing that doesn't get you in trouble. For example...... which of these statements is better??? Statement 1: "There are no significant foundation cracks or evidence of settlement." Statement 2: "No foundation cracks or evidence of...
  5. JoelTXCive

    Reinforcement congestion - How much is too much?

    I use 5" and 6" vertical rebar spacing on ACI 350 walls often. For vertical bars, this is a nice setup because I can do 5" spacing on the lower half, and then transition to 10" spacing easily by letting half the bars die out. (Or I can transition from 6" to 12" spacing.)
  6. JoelTXCive

    decks

    I found one.... City of Chicago (i was geographically close)... This might have some details you can use.
  7. JoelTXCive

    decks

    I have not seen one in a while, but I thought that some of the Northeast USA cities (Boston, New York) had deck building codes and recommended construction details. I thought I had saved one on my computer, but I'm not finding it now. If those exist, then they could be a good source of details...
  8. JoelTXCive

    STAAD Feet vs Inches

    This probably doesn't qualify as 'fairly easy'..... but here's an idea.... You might be able to cut & paste all the node locations from the Staad editor into excel. (in separate columns) Once into Excel you can divide all node locations by 12. (X,Y, & Z points). Then re-paste all the nodes...
  9. JoelTXCive

    Aging Retaining Wall

    Who owns the wall? A governmental entity or private organization? If private, then my recommendation would be to go through the steps of getting a geotech to evaluate; and then start saving money for a new wall. The geotech report might serve to help accelerate the replacement timeline.
  10. JoelTXCive

    Air Content in residential concrete

    Are you located in a cold environment with a frost line? The air entrainment is more important if you are worrying about freezing temps.
  11. JoelTXCive

    Lateral earth pressure on footings and keys of retaining walls

    Hallelujah! Someone has found the same issue I have been wrestling with for the past 8 years. Unfortunately, I have not found an answer. :( I think that this is one of many glitches in what I like to call "retaining wall logic" The problem can be further exacerbated if the geotech says...
  12. JoelTXCive

    Things you love/hate with mathcad

    I was a happy Smath user until late 2024. Our IT department said we were no longer allowed to use Russian based software programs, so we had to switch away from Smath. We looked at several computational software packages, but elected to go with MathCAD. (We do work in Florida, and FDOT has...
  13. JoelTXCive

    new concrete retaining wall / abutting existing rubble wall

    Could you do some thing like this for the transition. I'm not sure about the temp shoring. Could you post a plan view sketch?
  14. JoelTXCive

    Reactions of flat plate pinned on 3 sides

    Download Visual Plate by IES Software. It's got about a 5-minute learning curve. They give you a free 30 day trial.
  15. JoelTXCive

    Mechanical Rebar Couplers - Minimum end Distance?

    Koot - That's exactly what we were thinking. The coupler might end up serving as a headed bar end. We have not done any math yet, but it's possible that we do not need the full development length. Another option is to just tell the contractor to find some headed bar ends that can be...
  16. JoelTXCive

    Mechanical Rebar Couplers - Minimum end Distance?

    We have a bridge column with #11 bars in it. Per the plans, the column bars were fully developed into the bent cap. The contractor accidently cut some of the bars 1ft short. The contractor's proposed fix is to add mechanical couplers to the bars and then have ~1ft extensions. (the...
  17. JoelTXCive

    Seal (mud) Slab or CSS Pad?

    I have a large cast-in-place multibox culvert that will be constructed with varying fill on top of it. At the shallowest point, it will have ~5ft of fill on top, and at the deepest it will have 15ft of fill on top. We have called out BOTH a seal slab and a Cement Stabilized Sand (CSS) pad...
  18. JoelTXCive

    AWWA C200 Pipe Welding

    I have an existing 60" water pipe that was fabricated and installed in ~1986. The pipe is an emergency overflow line for a small stream that sits empty 99% of the time. But every now and then we get a 100yr+ storm event and the pipe carries a gravity flow. Per the original construction...
  19. JoelTXCive

    Best Practices for Structural Calculation Reports

    To me, on of the purposes of written calcs is so that someone can follow behind and check your work. They are also beneficial to you so that you can explain what you did and feel confidence that you checked all the applicable limit states. I think it is a good habit to do the following: 1)...
  20. JoelTXCive

    16" pipe under existing wall footing

    a simple sketch would help. Plan view and a section.

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