I am designing a tower crane footing for the construction of a parking garage. As expected, I have a large moment on this footing. The resultant falls outside the middle third of my 18'x18'x5' thick footing. I know this is generally undesirable, however, I performed (and passed) the following...
BACKGROUND
Our firm does a considerable amount of cold-formed steel design. We are beginning to see more and more architects specify what we call "ribbon windows". These are long narrow windows that run the length of the wall. The headers and sills are not supported by king studs. The studs...