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Main Question or Discussion Point
For a beam above between two columns and bars are yield and hinging.. the formula to get the probable shear or vpr (from statics) is
V= M(+) + M() /ln
I guess it is derived from V * ln = M(+) + M()
First of all. Why is the shear only present when it is hinging and not before (I'm talking of the shear in hinging (plastic rotation) and not the gravity loads which I'm aware has its own shear diagram)
Now what would happen if the beam is part of cantilever where one side is free (not on any support).. how do you make the statics derivation of V?
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