4.1.5. Frame Reactions

Try these first

1. 1.

   What is the first step to calculate reactions in frame structures?

   Hint

   Think about how to visualize the forces acting.

2. 2.

   Define pinned support.

   Hint

   Focus on what can and cannot move.

3. 3.

   What is the definition of frame reactions?

   Hint

   Think about where the loads go.

4. 4.

   True or False: A fixed support permits rotation.

   • True
   • False

   Hint

   Consider what movements the support allows.

5. 5.

   A frame has three supports with a varying load of 15 kN at different points. Calculate the reactions and discuss the implications if one support fails.

   Hint

   Focus on understanding how loads migrate in the absence of support.

6. 6.

   Design a frame structure with fixed and pinned supports. How would you compute the reactions for a given load? Provide calculations.

   Hint

   Utilize your equilibrium equations effectively.