How do I plot Shear Force & Bending Moment diagrams?

AI Thread Summary
To plot Shear Force and Bending Moment diagrams, start by determining the support reactions, which are given as VA = 11PL/24, VB = 9PL/16, and VC = -PL/48. After calculating the reactions, draw the shear force diagram by analyzing the forces acting on the beam segment by segment. Next, integrate the shear force diagram to obtain the bending moment diagram, ensuring to account for any applied loads and moments. It is essential to refer to textbooks on Strength of Materials for detailed explanations and examples. Understanding these foundational concepts will aid in successfully plotting the diagrams.
Sophie_Seal
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Hi sorry I am rather new to all this but I was woundering if I could get some help?

Im currently studdying for my Uni's resits over the summer which fall in just a few weeks time.
Iv started to go through some of the old past pappers and I've got stuck on the same bit over and over again.

Now I've attached one of the questions I got stuck on.
And I understand it up to part (b) which is where I get confused.

The support reactions are as follows:

VA = 11PL/24
VB = 9PL/16
VC = -PL/48

But I am just not sure how to proceed from here.

So if anyone can help me understand how to work out and plot the Shear Force & Bending Moment diagrams I'd be very greatful.

Soph x
 

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This is explained in every textbook on Strength of Materials.
 

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