2.2. Where

Try these first

1. 1.

   What is column buckling?

   Hint

   Think of how columns may fail under too much weight.

2. 2.

   State the formula for Euler's critical load.

   Hint

   Recall the components of critical load involve E, I, and effective length.

3. 3.

   What is the formula for the critical load Pcr in column buckling?

   • Pcr = μ / (Leff)^2
   • Pcr = π²EI / (Leff)²
   • Pcr = 2EI / (Leff)

   Hint

   Look for the formula that includes π².

4. 4.

   True or False: A fixed-fixed column has the shortest effective length.

   • True
   • False

   Hint

   Think about which condition provides the most support.

5. 5.

   A 3m fixed-pinned column experiences a compressive load of 50kN. Calculate the effective length and assess the risk of buckling.

   Hint

   Calculate Pcr and compare it with your given load.

6. 6.

   Design a column to withstand eccentric loading conditions considering both axial and bending stresses.

   Hint

   Use the total stress formula and evaluate normal versus bending stress.