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  1. ride5150

    Rust Protection - Grating Clamps

    I'm considering using regular saddle clips and field drilled holes, or clamp-style grating clips for securing grating panels. My concern is with long-term rust protection, as the grating and framing members will all be hot dip galvanized. in my situation, making a call on this is within my...
  2. ride5150

    Grating at Beam Edges - Small Cantilever in Weak Direction

    At grating edges, it is common to specify a certain distance from beam centerline to grating edge. naturally, depending on flange width, the grating "cantilevers" in it's weak direction by a small amount. What kind of clear cantilever span do you deem OK (from outer flange edge, to grating...
  3. ride5150

    RTU Curb/Catwalk Mounting

    Thanks for the reply! So the curb sits on the roof deck directly, and secures to the deck via screws? This is in line what ive gathered from watching RTU curb installation videos on youtube. However this would also have potentially large deck "crushing" forces at the locations where the deck...
  4. ride5150

    RTU Curb/Catwalk Mounting

    US based, I work for an industrial platform manufacturer. I've been tasked with designing small RTU access platforms on top of a typical joist + metal deck roof. I have designed plenty of RTU frames/joist reinforcing, however it got me thinking - how does an RTU curb physically attach to...
  5. ride5150

    Designing Lintel to bear on unreinforced masonry

    Hardbutmild: Thanks for the feedback. In my day job, our typical detail for WF lintels bearing on masonry is similar to this but with welded studs instead of rebar. Its just for good measure I guess, forms and actual connection between the beam, bearing plate and masonry wall vs just resting on...
  6. ride5150

    Designing Lintel to bear on unreinforced masonry

    Thanks for the response! I freehanded a few drawings and added links to the original post. The thing I'm most concerned about is the parallel pocket connection to the new lintel, as well as calculating the capacity of this parallel wall as it is completely unreinforced.
  7. ride5150

    Designing Lintel to bear on unreinforced masonry

    Hi everyone, a friend of mine is taking down a masonry wall and asked if I could design the lintel required to support the 2nd floor-roof brick/floor joists above. I am a structural engineer, but my masonry experience is limited to larger buildings with reinforced CMU...vs single wythe brick...
  8. ride5150

    Beam End Shear Reaction zero???

    Hi, I modeled a very simple frame with pinned supports. I applied a "none" shell area over gravity beams (set to auto-select) and a dead load. Once I run the analysis and then run a steel design check of members, the program sizes the members and shows strong-axis moments. However, when i click...

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