Roof top air handling unit with an aluminum channel base resting on an all steel roof frame. The base will be mounted w/ S.S. bolts, the roof steel is hot dipped galvanized. Does there need to be a barrier between the steel and aluminum, and suggestions as to what type of barrier to use if...
Please see attached PDF. Wagner handrail bracket attached to a 6" metal stud wall with 3 layers of drywall. The bracket is ok, and i have a sleeve welded to the back of it so that it will bear onto the studs or blocking. the issue i am having is finding a 3/8" fastener that can take the tension...
I am designing some aluminum rails and have a question about the welding. If you look at the attached PDF you can see what i have going on, basically i need to know if the 2 cjp welds onto the 3/16" plate are to much. Is there a min. thickness i should have that plate called out as? Please let...
I am designing an intermediate reinforced masonry shear wall and wondering if I should use Equation 2-28 (safety factor 2 for ordinary reinforced) or Equation 2-29 (safety factor 4 for special reinforced) to get the allowable shear strength? I am using MSJC 2011.
I am designing connection above a wall where 2 different types of joists meet above the wall (as seen in pdf). The TJI's coming in from the left will bear on the wall itself and butt up to a Rim Joist, I need a joist hanger to hold up the 2x8's that frame in on the other side of the Rim Joist. I...
