29.1.2. Behavior of Simple Frames

Try these first

1. 1.

   Define a simple frame.

   Hint

   What are the two main elements of a simple frame?

2. 2.

   What is a rigid connection?

   Hint

   Think about how it affects beam ends.

3. 3.

   What effect does a rigid connection have on a beam's maximum moment?

   • Increases it
   • Reduces it
   • No effect

   Hint

   Consider what happens at the load points.

4. 4.

   True or False: All connections in a simple frame are rigid.

   • True
   • False

   Hint

   Remember the types of connections we discussed.

5. 5.

   For a simple frame with a vertical load of 10 kN applied at mid-span, derive the moment at the supports for both a rigid and flexible connection.

   Hint

   Use basic equilibrium equations to find the moments.

6. 6.

   Discuss a real-world example where moment distribution in a frame led to structural failure and outline what was learned.

   Hint

   Research past structural failures for insights.