1.2. Codes

Try these first

1. 1.

   What are imposed loads?

   Hint

   Think about what items can add weight to a roof.

2. 2.

   Name a type of connection used in roof trusses.

   Hint

   Consider how steel members are joined together.

3. 3.

   What is the minimum imposed load for an accessible flat roof according to IS 875?

   • 1.0 kN/m²
   • 1.5 kN/m²
   • 3.0 kN/m²

   Hint

   Refer to the code section for specifics.

4. 4.

   True or False: Wind loads act identically on the windward and leeward sides of a roof.

   • True
   • False

   Hint

   Think about how wind interacts with surfaces.

5. 5.

   Given a flat roof that must support a maintenance crane and a snow load, calculate the individual imposed loads and determine if they remain within the IS 875 limits.

   Hint

   Always check load combinations as needed.

6. 6.

   Design a truss system for a 20m span roof, ensuring it can carry a combined dead load and wind load without failing. Specify materials and connection types.

   Hint

   Consider how load paths affect your design.