32.8.4. Capacity Design Principles in IS 13920

Try these first

1. 1.

   What does the 'strong column-weak beam' philosophy mean?

   Hint

   Think about which part of a structure should remain standing.

2. 2.

   Why is ductility important in seismic design?

   Hint

   Consider how materials respond under stress.

3. 3.

   What is the primary goal of the strong column-weak beam philosophy?

   • To ensure beams are the strongest part.
   • To prevent columns from yielding.
   • To design buildings that can absorb seismic energy.

   Hint

   What part of the structure absorbs energy during an earthquake?

4. 4.

   True or False: Detailing enhances the ductility of reinforcing elements.

   • True
   • False

   Hint

   What does good detailing aim to maintain during seismic events?

5. 5.

   Design a simple framework where you apply the strong column-weak beam philosophy. Explain your design choices and detailing approaches.

   Hint

   Think critically about load paths and how your design would behave during a seismic event.

6. 6.

   Critique a real-world structure (e.g., a local building) based on the principles of IS 13920. Are its beams designed to be weaker than its columns? Justify your assessment.

   Hint

   Consider the overall safety and performance during potential seismic loads.