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Recent content by mmmbmf

  1. mmmbmf

    Concrete/CMU Crack Causes

    Thank all of you for your help. Hope you have a great weekend.
  2. mmmbmf

    Concrete/CMU Crack Causes

    Tomfh. Yes it is. I have been told to chamfer the tie column vertical edge next to the block work and possibly have the crack form there. I question if I should be tying the pour together by breaking out the face of the CMU. What method would be more common at junctions like this to address...
  3. mmmbmf

    Concrete/CMU Crack Causes

    Thank you JAE for your opinion. I respect your judgement and appreciate your time responding to my question.
  4. mmmbmf

    Concrete/CMU Crack Causes

    Here is another picturehttps://files.engineering.com/getfile.aspx?folder=18f6b58f-279d-43d5-8e1d-443c61865f28&file=0707231332_HDR.jpg
  5. mmmbmf

    Concrete/CMU Crack Causes

    I have a situation where the interface of a concrete tie column and CMU has cracked. Our typical detail calls for the CMU face be be broken out so the concrete will pour into every other cell. Can someone give me their opinion as to what is causing this? See...
  6. mmmbmf

    Large Agricultural Structure

    Believe it or not, I designed buttresses for an older existing similar chicken house to take the new wind loads. They were large shear panels placed perpendicular to the exterior walls. No where near flying, but rather unattractive and effective. I don't think the chickens minded.
  7. mmmbmf

    Large Agricultural Structure

    With using the allowable stresses recommended in the paper by Donald Patterson, I came up with 10 inch dia. poles at 8 feet oc. A truss manufacturer says that if he has enough height for the truss he can design it to meet the code. I still have to provide the truss manufacturer with the worst...
  8. mmmbmf

    Large Agricultural Structure

    Thank you all for your input. After reading the pole barn article, I have done some preliminary calculations and determined that this may still be the best way to go on this structure. Some things just don't change very much from the engineering side, but certainly do from the code side!!! I...
  9. mmmbmf

    Large Agricultural Structure

    I have looked at that option in the long direction (400 ft) and that is ok, it is the transverse clear span direction I cannot have cross bracing in. I have also looked at cantilever columns from the foundation and I can make that work but I am still searching for more economical options if...
  10. mmmbmf

    Large Agricultural Structure

    I would greatly appreciate some opinions as to what would be the best possible options for lateral support for an enclosed agricultural structure. The structure will house chickens. Eave height of 20 feet. 140 mph Florida. Clear span of 70 feet. No interior walls. I have looked at using...
  11. mmmbmf

    Retail Product

    Thank you all for your advice and opinions. I really appreciate the time you took to provide me with your productive comments. The article was also very informative.
  12. mmmbmf

    Retail Product

    I have been asked to design a special Christmas Tree that my client wants to package and sell nationally. The structure will be in pieces that the consumer will put together themselves and can be located indoors or outdoors. The question I have is: What wind speed would you design for? My...
  13. mmmbmf

    Light Weight Concrete Form Blocks

    The blocks are made out of a super lightweight concrete. They will be very similar to a product like APEX Blocks. I have found some guidelines as per an ICC-ES Evaluation Report for the specific APEX product and it references various design methods with assumptions and prescriptive methods...
  14. mmmbmf

    Light Weight Concrete Form Blocks

    I have a builder that wants to produce his own lightweight concrete form blocks then infill the voids similar to reinforced masonry. The end result would be a wall (grid) of 5 inch thick normal concrete with voids where the webs of the block would be. The voids would be 6 inches by 6 inches at...
  15. mmmbmf

    Precast Concrete Manhole Design

    Thanks for your input. I anticipated just writing my own calculation program and priced it accordingly.

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