7.2. Bending Moment Diagrams and Equations for Frames

Try these first

1. 1.

   Define a bending moment.

   Hint

   Think about the relationship between force and bending.

2. 2.

   What does a bending moment diagram represent?

   Hint

   Focus on what happens to the beam as loads are applied.

3. 3.

   What is a bending moment?

   • A force that causes uplift
   • An internal moment that causes bending
   • A type of load

   Hint

   Consider the effect of loads on beams.

4. 4.

   True or False: A bending moment diagram can show areas of maximum stress on a beam.

   • True
   • False

   Hint

   Think about where the strongest forces act.

5. 5.

   Given a cantilever beam of length 4m with a point load of 200N applied at the free end, calculate the bending moment at the fixed support.

   Hint

   Consider where the maximum moment occurs on a cantilever.

6. 6.

   Design a bending moment diagram for a beam subject to a uniformly distributed load. Describe the shape and critical points.

   Hint

   Think about how distributed loads affect the bending moment differently than point loads.