Engr210 – Spring 2005 Instructor: Ahmed Abdel-Rahim
Lesson # 27: Moment, Shear, and Normal Force diagrams Page 1 of 1
Today’s Objective:
1. Develop shear and moment
equations for beams
2. Draw Shear, Normal and Moment
Equations for beams
Things to consider
Normal forces in Beams?
Define “x” in the shear and moment
equations [No change in loading]
a) Supports,
b) start and end of distributed laods
c) Concentrated loads.
Procedure for analysis
a) FBD for the entire structure
b) Support Reactions
c) Set x, y axis [left side of the
beam]
d) Define x1, x2, x3
e) Find V and M at sextion 1, 2, and
3
f) Draw the shear and bending
moment diagrams
Example 7.48
Example 7.49, 7.52 & 7.54
Sign convention
Depends on which side you are doing the
analysis.