Get access to a wealth of useful information, valuable resources, and exciting updates on the latest trends in the industry.


What is Shear Force Diagram and Bending Moment Diagram

Join us on Facebook!

Stay updated with our latest construction news, tips, and updates.

Like our Facebook Page
The algebraic sum of the vertical forces at any section of a beam to the right or left of the section is known as shear force. It is briefly written as S.F. 
The algebraic sum of the moments of all the forces acting to the right or left of the section is known as bending moment. It is written as B.M. 
Shear Force and Bending Moment Diagram

The members of rigid frames and beams may be subjected to shear forces and bending moments as well as axial forces under the action of external loads. 

The determination of these internal forces and moments (stress resultants) is necessary for the design of internal forces and moments that may develop in beams and the members of plane frames, under the action of coplanar systems of external forces and couples. 

Beams are structural members designed to support loadings applied perpendicular to their axes.

In general, they are long and straight and have a constant cross-sectional area. The actual design of a beam requires a detailed knowledge of the variation of the internal shear force designated by V and bending moment designated by M acting at each point along the axis of the beam. 
A shear force diagram is one which shows the variation of the shear force along the length of the beam. And a bending moment diagram is one which shows the variation of the bending moment along the length of the beam. 

How the Shear Force and Bending Moment Diagram is Drawn

Shear force and bending Moment Diagram is drawn by the method of Sections, in which a section is cut at various distances from the supports to find the internal shear and bending moment at that section. In such a way along the length of the member the forces are known and are then plotted on a graph as shown in the above graph. 

To know more about how to draw shear force and bending moment proceed to 

Subscribe to our YouTube Channel!

Stay tuned for our latest construction videos, tutorials, and updates.

Subscribe to our YouTube Channel
About author

Saad is a civil engineer by profession and love to explore innovative ideas relevant to construction, civil engineering, and home improvement. He loves writing about concrete, DIY guides, home improvement tips, technologies, and more.
Related posts

DIY Pool Removal - 8 Reasons it's not the best approach


Party Wall Act 1996 Explained: Rights, Obligations, and Procedures


How to Paint concrete Bird Bath – For an amazing RESULT (as a BONUS)

Home GuidesHome ImprovementUncategorized

Factors to Consider When Paving Your Driveway

Sign up for our Newsletter and
stay informed
[mc4wp_form id="14"]

Leave a Reply

Your email address will not be published. Required fields are marked *