6.2. Statically determinate

Try these first

1. 1.

   Define a statically determinate structure.

   Hint

   Think about the conditions for forces and moments.

2. 2.

   What is a dead load?

   Hint

   Consider how this load differs from variable loads.

3. 3.

   What is a statically determinate structure?

   • A structure that requires complex calculations
   • A structure that can be analyzed using basic equilibrium
   • A structure with no loads acting on it

   Hint

   Think about the simplicity of analysis required.

4. 4.

   True or False: Dead loads are variable.

   • True
   • False

   Hint

   Consider what is meant by the word 'dead'.

5. 5.

   For a simply supported beam with an 800 kg load applied at its midpoint, determine the reactions at the supports.

   Hint

   Remember to balance forces vertically.

6. 6.

   Discuss the implications of ignoring wind load in the design of a skyscraper.

   Hint

   Consider what forces act on tall structures during strong winds.