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  1. Lion06

    Anchorage Connection Between Sill & Block Wall

    I would consider vertical and diagonal angles with post installed anchors into the CMU and lag screws into the sill. It looks like you will need to pack out the sill to be flush with the inside face of the CMU.
  2. Lion06

    Anchorage Connection Between Sill & Block Wall

    Are you trying to get some general anchorage or do you have specific forces in specific locations to resist?
  3. Lion06

    Wind Loading Question

    Bones - I like the idea of giving both. That will also allow for a little commentary. JStephen - Agreed on the 33'. My bad on the reference to 50'. I will just stick with the 3 second gust for now. Do you know of any good literature that discusses factors for gusts shorter than 3 seconds...
  4. Lion06

    Wind Loading Question

    I have a question on wind loading. I have a case where I need to determine the actual wind speed that will cause a ballasted sign to topple. The sign is a small sign (about 1x2) with a weighted ballast base. I'm approaching this from two fronts. First, to determine the actual ballast weight...
  5. Lion06

    I am evaluating an existing mezzani

    Thanks, Bones! That is very helpful!!
  6. Lion06

    I am evaluating an existing mezzani

    It's a non-composite form deck, approximately 5/8" deep.
  7. Lion06

    I am evaluating an existing mezzani

    I am evaluating an existing mezzanine with a non-composite form deck. Does anyone know where I can find information on what this stamp can tell me?
  8. Lion06

    Brick Veneer Parapet without Backup

    Thank you for the feedback and reference.
  9. Lion06

    Brick Veneer Parapet without Backup

    Does anyone have a good reference for evaluation of masonry facades subject to high wind events?
  10. Lion06

    Brick Veneer Parapet without Backup

    I came across something today I hadn't seen before and I'm looking for thoughts, literature, if anyone else has come across this and what you've done. I have a 38' tall brick veneer wall on a two story building with no relief angles. The height just barely makes it for the maximum height...
  11. Lion06

    Limitations on Height of Free Standing Wall

    Thanks, bones. I think where I landed is that I will design the CMU core and reinforcement for the full wind load for strength and only count on the brick veneer in the deflection analysis to, as you said, not have to deal with cracking complaints with a wind storm. I'm currently around h/670...
  12. Lion06

    Limitations on Height of Free Standing Wall

    Thanks everyone for the input. One more thought - can you reasonably get composite behavior out of the wall with the brick cladding on either side? It's not needed for strength, but it would add quite a bit of stiffness and help with the second order effects and cracking. I can design...
  13. Lion06

    Limitations on Height of Free Standing Wall

    @Pham - It's not getting rebuilt as it was before. It was just a double wythe wall with no core. I am just starting to study this, so I haven't studied the second order effects yet with an accurate reflection of the cracking moment. I have second order effects accounted for without cracking...
  14. Lion06

    Limitations on Height of Free Standing Wall

    @WesternJeb - Wind controls over seismic for this wall. I hear you and I typically take that approach. I was just thinking about the lack of redundancy in a 37' tall free standing wall and the potential liability if it falls in a high wind event and were to hurt someone. 37' covers a big part...
  15. Lion06

    Adding two nuts to the bolt connection

    The only time I use two nuts on a connection is when it's a slotted hole and I want to allow the bolt to slide in the hole. The first nut get finger tightened and the second nut gets tightened against the first. It's literally the only time I can think of that I ever use two nuts... for a bolt.
  16. Lion06

    Limitations on Height of Free Standing Wall

    Hi all. I have a situation where a free standing wall was damaged by a tornado and is being rebuilt. It's a large wall (approximately 37' tall) and about 5' way from the exterior wall of the main building. I was shocked to see it was a double wythe brick wall with no interior structure and no...
  17. Lion06

    Composite Steel Beam (Partial Length Only)

    Thanks Koot. It's been a busy 10 years resulting from upheavals in my personal life. Good to know it doesn't seem unreasonable to look at it with part composite and part not. I was thinking it's similar to a beam in which you reinforce it with a steel plate or WT for only part of the...
  18. Lion06

    Composite Steel Beam (Partial Length Only)

    Josh - It's about 22' long and the last 2'-9' +/- of slab will be removed. I've had the condition you describe above come up and I generally check that as composite with slab on one side only (which is generally pretty conservative). With losing the slab on both sides for the last 2'-9", I...
  19. Lion06

    Moment on connection

    To answer the question very directly as it's asked, yes, the connection needs to designed to take that moment. I would have some questions, though - What is the lateral system? Is it modeled correctly? If this is not part of the lateral system, then I would not detail the end connections as...
  20. Lion06

    Composite Steel Beam (Partial Length Only)

    Hello All - I have an interesting situation in which a new opening needs to be added in an existing floor. The opening will remove the slab from both sides of the beam for the 2' length at one end. Normally, I would check this as non-composite (which was done) and reinforce it, if necessary...

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