I have a case where I have a large heavily loaded cantilever that is doing some weird things to my structure. I am currently trying to design my foundation and I am having a hard time with the load combinations found in IBC 2009. I have a case where the "anchor" is resisting uplift load from the cantilever. I have other loads on the column (dead, live and snow). Now when it comes time to check the IBC load combinations I was all set to use 0.6D but that is only a combination for Wind and Seismic not for D+L+S. I am probably going to end up using 0.6D but I am just wondering what others would do in this instance?
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