You can learn shear force and bending moment of simply supported beam with point loads, first i have explained general problem by taking point load as "W" on a span "L" this load W is acting at mid span and shear force and bending moment is than calculated, after general problem i have solved in detail one numerical example containing three point loads
In cantilever beam there is no need to find the support reactions but in simply supported case we need to find the support reactions, beam is hinged at one end and is having roller support at another end, for finding out support reactions we need Free Body Diagram (FBD) to clearly mention all the reactions and supports acting on a particular beam, after finding support reactions proceed with the shear force and bending moment calculations with correct sign conventions and at last draw the shear force diagram and bending moment diagram.
If you have any difficulty, please comment in the comment section.
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