I have a client asking me what the comparable earthquake magnitude would be (Richter Scale) for the design loads that were calculated. I’m in Portland Oregon and the typical Sds is around 0.70 and Sd1 is around 0.40. Is there anything that relates the two together?
My project needs a 6' Tall chain-link fence installed onto an existing concrete barrier. The chain-link fence has slats in it making it a solid wall as far as wind is concerned. My wind pressure is 15 PSF.
The problem I'm having is how to attach the posts to the barrier. The top of the...
I'm trying to design a 42" tall concrete rail that sits on top of a gravity modular block wall. I understand that there is a 10 kip design impact load at the top of the rail but I don't understand how that load is distributed. AASHTO says that it is distributed along the length of 0.8X+3.75'...
I have a small building (50' x 27') with 2' eaves on the side of the building. The roof is a monoslope roof (3:12). The problem I'm having concerns the framing of the eaves and their connection the the perimeter shear walls. Is there a typical detail out there for eave framing? The eave is 9...
I need some help. I have a steel handrail post (5'0" o.c.) that needs to be attached to the side of a wood ramp. I can use lag screws in the post's baseplate and attach the lag screws into the end of 2x6 (Doug Fir-Larch). I have calculated the moment in the baseplate to be 875 ft-lbs which...
