How do I plot Shear Force & Bending Moment diagrams?

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SUMMARY

The discussion focuses on plotting Shear Force and Bending Moment diagrams, specifically for a problem involving support reactions VA = 11PL/24, VB = 9PL/16, and VC = -PL/48. The user expresses confusion after calculating the support reactions and seeks guidance on the next steps to create the diagrams. The response highlights that this topic is commonly covered in Strength of Materials textbooks, indicating that foundational knowledge is readily available for further study.

PREREQUISITES
  • Understanding of static equilibrium and support reactions in beams
  • Familiarity with Shear Force and Bending Moment concepts
  • Basic knowledge of Strength of Materials principles
  • Ability to interpret and analyze structural diagrams
NEXT STEPS
  • Study the process of constructing Shear Force diagrams using calculated support reactions
  • Learn how to derive Bending Moment diagrams from Shear Force diagrams
  • Review examples of Shear Force and Bending Moment diagrams in Strength of Materials textbooks
  • Practice solving similar problems involving different loading conditions and support types
USEFUL FOR

Students studying civil or structural engineering, particularly those preparing for exams in Strength of Materials, as well as educators looking for resources to explain Shear Force and Bending Moment 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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