I’m working on two details along the same column line where there is a 12” step in the framing from inside to outside. I’m using a W21x44 in the first one and framing the exterior wood trusses into the side. For the 2nd detail, I’m using a W12x26 with a WT12x31 because the beam extends past the...
I was recently performing a structural survey of an existing building in order to find the capacity of the roof. In one of the middle spans, a W24 beam cantilevered both ways over the columns to support the beams in the adjacent bays. At the beam column connection, an 18" deep bar joist had a...
I am a structural engineer for a solar company and we have recently hired a wind tunnel to test our solar panel mounting frame, which is a ballasted system intended to sit on a roof top. We had them test a few different ballast scenarios, all at exposure category C, to failure in either uplift...
I am designing a 5 story, post tensioned concrete building located a few blocks from the Quarter in New Orleans. Due to the amount of older historical buildings in the area, we are using 95’ deep auger cast piles rather than driven piles to keep the vibration at a minimum. We are showing a...
