This engineering statics tutorial goes over an frame example problem. Despite having 4 unknown reaction forces to begin with (two pin supports), this problem is solvable using statics alone, because of some trickery that we get when we explode the diagram.
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Looking for practice problems with solutions? I also created a whole set of fully solved statics problems with step-by-step hand calculations:
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Looking for software? I highly recommend checking out SkyCiv. They make a full suite of online structural analysis software and tools that are useful for both students and professionals, including calculators for beams, trusses, frames, moment of inertia and more. It’s great for checking your work:
https://bit.ly/skyciv-e4f
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