40.7.3. Column Detailing

Try these first

1. 1.

   What is the axial load carrying capacity limit for ductile columns?

   Hint

   Think about the strength properties of concrete and area.

2. 2.

   Why is transverse reinforcement important in columns?

   Hint

   Consider how columns behave under stress.

3. 3.

   What is the axial load capacity limit for ductile columns?

   • 0.2fckAg
   • 0.4fckAg
   • 0.6fckAg

   Hint

   Check the relationship between fck and Ag in the section.

4. 4.

   True or False: Transverse reinforcement is optional in plastic hinge zones.

   • True
   • False

   Hint

   Consider the importance of ductility.

5. 5.

   Design a column section adhering to IS 13920 standards for a building in a Zone V area. Consider fck = 20 MPa and Ag = 400 cm². What transverse reinforcement would you specify?

   Hint

   Refer to the detailed spacing required for ties in the standards.

6. 6.

   A building's column failed during an earthquake, and analysis shows inadequate transverse reinforcement was the cause. Propose a detailing plan that could strengthen the column.

   Hint

   Evaluate existing configurations and suggest enhancements based on seismic codes.