6.3.3. LRFD Load Combinations

Try these first

1. 1.

   What is a load factor in the context of structural engineering?

   Hint

   Think about how loads might change during a structure's life.

2. 2.

   Define 'Dead Load'.

   Hint

   What things are considered permanent in a building?

3. 3.

   What does LRFD stand for?

   • Load and Resistance Factor Design
   • Load Ratio Factor Design
   • Linear Resistance Factor Design

   Hint

   Think about how the components in the title relate to structural safety.

4. 4.

   True or False: The dead load of a structure can change over time.

   • True
   • False

   Hint

   Recall what constitutes a dead load.

5. 5.

   A building's dead load is 300 kN, the live load is 100 kN, and it must endure a wind load of 50 kN. Using the combination 0.9D + 1.6W + 1.6H, calculate the factored load.

   Hint

   Substitute and calculate each load using the coefficients.

6. 6.

   Design a structure considering a dead load of 250 kN, a live load of 150 kN, and a seismic load of 40 kN using 1.2D + 1.0L + 1.0E.

   Hint

   Apply provided coefficients to each load type.