While visiting a large jobsite the other day, I noticed that they were assembling massive galvanized truss units (200+ feet) with A325 bolts and no washers on either side. The holes are matched plates with round holes (not slotted). I have normally understood that a washer should be used on...
What do I do with all of this water?
Storage of 3,500 gal. of class IB Liquid in 55,5,& 1 gal metal containers and 5 & 1 gal plastic (dot spec) containers. Room size is 1,900 sf
IBC occupancy class of general operation is S-1
IBC occupancy of cut off room is H-3
Working through the...
There was no initial difference. As matter of fact there is a security camera system mounted abount 3/4 ths up on the wall. The mounting system wrapped the corner and was anchor bolted in both direction. The bolts resisting this bow have failed in shear.
I have a problem with a panel bowing -- possibly due to solar heat gain in the late afternoon. This problem is most apparent at the corner where this panel is the “long” panel at the corner and it meets the straight edge of the “short” corner panel.
Facts:
Location – Atlanta, GA
Age of...
A concrete contractor has recently replaced a small (13'x13')defective section in very large new residential driveway. The problem is that they did not saw cut the edges or work back to a control/expansion joint and simply jackhammered out the slab and repoured it with very rough edges. The...
