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Recent content by PYDC402040

  1. PYDC402040

    Seeking Ideas for Impactful Structural Engineering Class Assignments

    Hello, I teach upper-level structural engineering classes. I am looking for impactful (and also reasonable for students) assignments, preferably with easy to digest plan sets. When you think back to your undergraduate days, were there any projects, case studies or HW assignments that were...
  2. PYDC402040

    How to Eliminate Rafter Ties?

    Thank you guys very much. I'm glad to see that the horizontal component doesn't cause anyone else alarm without rafter ties. I'll move forward without them and reinforce the post to the ridge beam as close to mid-span as possible to help with any lateral pull the rafters might cause. Thank you...
  3. PYDC402040

    How to Eliminate Rafter Ties?

    The conceptual question is - how is the horizontal component accounted for when ridge beams are used to carry the load? Yes, the rafters are designed for bending, and a large component of the gravity load is transmitted to the foundation, but there is still thrust present pushing out the walls...
  4. PYDC402040

    Loft Support using Ledger - Stability Question

    Thank you very much to both of you for the advice, I'm going to do just that, extend the joists to meet the studs and connect from the side. It sounds like keeping the ribbon plate is a good idea even if we add studs. I'll talk to the contractor again once the detail is worked out and listen...
  5. PYDC402040

    Loft Support using Ledger - Stability Question

    I have a project where a client is converting an RV garage into an ADU. There is a 10 ft by 10 ft section of loft that will be supported on one side by a ledger beam. The existing wall has 2x6 studs at 16 in o.c that are 13 ft tall, it is a load bearing wall for the roof rafters above (5:12...
  6. PYDC402040

    Strengthening Tension Chord in Truss?

    Regarding the metal connector plates, the existing axial compression capacity of the truss chords is higher than the improved tension capacity, so I assumed that if the plates were designed to take the higher compression reactions, they could also transfer the increased tension loads. But no, I...
  7. PYDC402040

    Strengthening Tension Chord in Truss?

    Thank you Jayrod12!
  8. PYDC402040

    Strengthening Tension Chord in Truss?

    The wall being removed is at 12' from each exterior wall, center of the truss. The web truss members attach to the bottom chord at 8' from each end. The wall was not located at a point to buttress the truss correctly, if the wall is supporting the truss, it is inducing bending in the center 2x4...
  9. PYDC402040

    Strengthening Tension Chord in Truss?

    Hello, I have a client that is knocking out what was likely intended to be a non-load bearing internal wall. One story home, the wall runs perpendicular to the truss system (open W style, 24 ft span, with webs meeting the tension chords at 8'ft spacings, 2x4 members), an analysis shows that...
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