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  1. AAHstruct

    Equipment on Grade Anchorage - ASCE 7-16 Chapter 13 vs 15?

    Thanks for the response, dauwerda, but I'm still not convinced that's the intent. If the transformer was supported on a platform structure and was 25% or greater of the seismic weight of the structure, then sure I'd agree, but there isn't a support structure like a platform or building in this...
  2. AAHstruct

    Equipment on Grade Anchorage - ASCE 7-16 Chapter 13 vs 15?

    A question has recently come up regarding the design of anchorage for transformers that are supported by foundations on-grade in California. From ASCE 7-16, it's my understanding that the anchorage should be designed per Chapter 13 with the height in structure at point of attachment (z) set to...
  3. AAHstruct

    Existing URM Check with ASCE 41-13?

    Also note that ASCE 41-06 section 7.3.2.2.2 used to have shear strength as a force controlled action per equation 7-4: VCL = vml An But there was no final shear strength that was dependent on a superimposed dead load. Perhaps I should use the '06 version for shear strength?
  4. AAHstruct

    Existing URM Check with ASCE 41-13?

    Found this old post (thread507-375408) regarding designing unreinforced masonry per ASCE 41-13, but unfortunately the answers to the questions weren't posted. I'm running into the same problems with a project that I'm currently working on, and using ASCE 41-13 for checking existing unreinforced...
  5. AAHstruct

    Contracts and Liability Issues for Residential Construction?

    Hi. I’m a Professional Engineer in structural looking to start up a little side-business in Idaho, and I have a couple of questions regarding contracting and liability. I think that my situation is pretty commonplace, and I hope to tap into other’s expertise for advice. (I apologize if these...
  6. AAHstruct

    wood shear wall

    If I understand your question correctly, you can go to the following website to find technical papers on perforated shear wall testing: http://www.awc.org/Publications/download.html Towards the bottom under the "Technical Articles and Papers by Others" heading is a section for Shear Walls with...
  7. AAHstruct

    Offset Masonry Shear Walls

    Can you please provide an IBC or ASCE 7 (or anything else) reference for assuming that offset walls lines within 5% of the building width can be assumed to act on the same line? I'm having trouble figuring out if this is codified or if it is a generally accepted engineering practice. To answer...
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