27.2.2. Eccentric Columns

Try these first

1. 1.

   What is an eccentric column?

   Hint

   Think about the alignment of the load concerning the column.

2. 2.

   List types of failure in eccentric columns.

   Hint

   Recall the main contexts we discussed today.

3. 3.

   What main factor causes an eccentric column to bend?

   • Symmetrical loading
   • Eccentric loading
   • Consistent alignment

   Hint

   Consider how load placement affects the structure.

4. 4.

   True or False: The balanced condition in an eccentric column results in failure from either steel yielding or concrete crushing.

   • True
   • False

   Hint

   Review the concepts of failure modes in eccentric columns.

5. 5.

   Design a reinforcement scheme for a concrete column with h = 25 in, b = 15 in, d = 3 in, f'c = 5000 psi, and an eccentric load leading to a moment of 150 k-ft. What considerations must be made?

   Hint

   Remember to account for both failure modes during design.

6. 6.

   Given a scenario where an eccentric load is producing both bending moments and axial loads, summarize how you would assess the risks of failure.

   Hint

   Refer to the balance of forces and failure modes we learned about.