11.2.2. Top Column Moments

Try these first

1. 1.

   What is a top column moment?

   Hint

   Think about how forces are transmitted through structures.

2. 2.

   List one factor affecting column moments.

   Hint

   Consider forces acting horizontally on a frame.

3. 3.

   What does a top column moment represent?

   • Bending at the top of a column
   • The weight of the column
   • The height of the column

   Hint

   Think about how loads affect columns.

4. 4.

   True or False: Positive moments indicate compression at the bottom of a column.

   • True
   • False

   Hint

   What do positive moments create in a beam?

5. 5.

   A frame is subjected to a lateral load causing a shear force of 12 k at the top of a column of height 16 ft. Calculate the top column moment and describe its significance.

   Hint

   Use the formula and discuss the implications.

6. 6.

   If a building needs to withstand a horizontal load leading to negative moments in its columns, what design considerations should engineers take into account in their calculations?

   Hint

   Think about what negative moments imply for the structure.