Some more info. These are framing into the wall, you can see the 8' planks running into the wall in the last picture. The building was built in the 70's and they found this crack doing renovations. So if this is what Koots is talking about, the restraint is causing tension in top of the plank...
jayrod12. That's a good point. We would have to see if they grouted the ends or not. It almost looks like they didn't from the picture they gave us. Which would explain the shear failure there.
We are getting called out to inspect a hotel with precast slabs. We're looking for some ideas of what could be causing the slab to crack before we go out and inspect it. See picture attached. Our initial thoughts are shear failure, however there's not really much load being applied. The second...
Looking for some guidance and references regarding exterior concrete stairs. We do a good amount of stair work but it's mostly steel and we do work with concrete, just not elevated stairs. We got a job which has a pedestrian bike stair for a park. The client would like it to be concrete. It's...
We are looking to start some work with designing stairs in California. ASCE 7-16 13.5.10 states that the stair connections need to accommodate the seismic relative displacements. With these displacements occurring in any horizontal direction. AISC Design Guide 34 gives very few typical...
