34.13.1. Types of Irregularities (IS 1893:2016)

Try these first

1. 1.

   What are plan irregularities?

   Hint

   Think about how the shape of a building can affect its behavior.

2. 2.

   Name one type of vertical irregularity.

   Hint

   Consider variations in structure height or stiffness levels.

3. 3.

   What constitutes plan irregularities?

   • Only vertical changes
   • Only horizontal changes
   • Changes in layout affecting stress

   Hint

   Think about how layout affects stress and stability.

4. 4.

   True or False: Mass discontinuities can lead to uneven seismic responses.

   • True
   • False

   Hint

   Reflect on how mass distribution affects stability.

5. 5.

   Analyze a building plan with a re-entrant corner and varying wall thickness. What type of irregularity does it present, and how would you ensure stability?

   Hint

   Think about placing additional structural elements for support.

6. 6.

   Consider a high-rise structure with multiple setbacks at different levels. Discuss the irregularities and propose a design solution to mitigate seismic risk.

   Hint

   Think about technologies that can help balance forces across levels.