1.1.2. Reinforcing Steel

Try these first

1. 1.

   What is the yield stress of standard reinforcing steel bars?

   Hint

   Think about the stress that indicates the point of yield in the material.

2. 2.

   Name one function of stirrups in concrete.

   Hint

   Consider the types of forces acting on concrete structures.

3. 3.

   What is the yield stress of a typical reinforcing steel bar?

   • 40 ksi
   • 60 ksi
   • 80 ksi

   Hint

   Recall the standard yield stress figures for common rebar.

4. 4.

   True or False: Stirrups are used only for enhancing tensile strength.

   • True
   • False

   Hint

   Think about the role of stirrups and their specific applications.

5. 5.

   Design a small concrete beam that requires reinforcing steel. Specify the necessary yield stress ratings and quantities for adequate strength.

   Hint

   Consider the load calculations and safety factors.

6. 6.

   Analyze a design where stirrups were omitted. What might happen under shear loads?

   Hint

   Think about the importance of shear forces in structural integrity.