24. REINFORCED CONCRETE BEAMS; Part I

Try these first

1. 1.

   What is the tensile strength of concrete compared to its compressive strength?

   Hint

   Think about the ratio.

2. 2.

   What does ACI stand for?

   Hint

   Focus on the organization responsible for concrete standards.

3. 3.

   What is the tensile strength of concrete compared to its compressive strength?

   • One-and-a-half times
   • Half
   • One-tenth

   Hint

   Consider the ratio between tensile to compressive strength.

4. 4.

   True or False: The main use of steel reinforcement in concrete is to improve its compressive strength.

   • True
   • False

   Hint

   Think about why reinforcement is necessary.

5. 5.

   Design a reinforced concrete beam with specific moment requirements. Calculate the necessary steel reinforcement based on provided load and span.

   Hint

   Use the ACI guidelines to find the right equations.

6. 6.

   Analyze a cracked beam scenario. Discuss how you would assess the moment capacity, factoring in the non-linear stress distribution.

   Hint

   Consider how the beam's conditions change under load.