Question

In limit state design of concrete structures, the strain distribution is assumed to be

• A. linear
• B. non-linear
• C. parabolic
• D. parabolic and rectangular

Hint:

- Limit state design is a modern method that ensures safety and serviceability.

Answer 1

The Correct Option is D

Step 1: Understanding strain distribution in limit state design. - In limit state design, strain distribution is assumed to be parabolic and rectangular to provide accurate stress calculations. Step 2: Importance of strain distribution. - The parabolic portion represents the realistic stress-strain relationship at low strains. - The rectangular portion is used for simplification at higher strains. Thus, the correct answer is (D) parabolic and rectangular.