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According to IS 456-2000, which one of the following statements about the depth of neutral axis χu,bal for a balanced reinforced concrete section is correct?  
  • a)
    χu ,bal depends on the grade of concrete only.  
  • b)
    χu ,bal depends on the grade of steel only.  ​
  • c)
    χu ,bal depends on both the grade of concrete and grade of steel.  
  • d)
    χu ,bal does not depend on the grade of concrete and grade of steel. 
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
According to IS 456-2000, which one of the following statements about ...
(B) Exp: By limit state method 
 For balanced section  
∴ χu ,bal depends upon grade of steel only.
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Most Upvoted Answer
According to IS 456-2000, which one of the following statements about ...
From strain diagram (Limit State method),
(0.87Fy/Es + 0.002)/0.0035 = (d- Xu)/ Xu. Hence, Xu depends only on Fy (yield strength of steel)
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According to IS 456-2000, which one of the following statements about ...
Depth of Neutral Axis (u,bal) in a Balanced Reinforced Concrete Section

According to IS 456-2000, the depth of neutral axis (u,bal) for a balanced reinforced concrete section depends on the grade of steel only. This means that the grade of concrete does not have any influence on the determination of the depth of the neutral axis.

Explanation:

1. Definition of Neutral Axis:
The neutral axis of a reinforced concrete section is the line that divides the section into two parts, compressive and tensile, such that the compressive forces and tensile forces are balanced.

2. Importance of Neutral Axis:
The position of the neutral axis in a reinforced concrete section determines the distribution of stresses and strains in the section. It is a crucial parameter in the design of reinforced concrete structures.

3. Factors Affecting the Depth of Neutral Axis:
The depth of the neutral axis (u,bal) depends on the following factors:

a) Grade of Steel: The strength of the reinforcement steel affects the position of the neutral axis. Higher strength steel can resist higher tensile stresses, leading to a higher placement of the neutral axis.

b) Grade of Concrete: The strength of the concrete also affects the position of the neutral axis. Higher strength concrete can resist higher compressive stresses, which can affect the placement of the neutral axis.

4. IS 456-2000:
IS 456-2000 is the code of practice for plain and reinforced concrete. It provides guidelines for the design and construction of reinforced concrete structures in India.

5. Conclusion:
According to IS 456-2000, the correct statement about the depth of the neutral axis (u,bal) for a balanced reinforced concrete section is that it depends on the grade of steel only. The grade of concrete does not have any influence on the determination of the depth of the neutral axis. This means that the strength of the reinforcement steel is the primary factor that determines the position of the neutral axis in a balanced reinforced concrete section.
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According to IS 456-2000, which one of the following statements about the depth of neutral axis χu,bal for a balanced reinforced concrete section is correct? a)χu ,bal depends on the grade of concrete only. b)χu ,bal depends on the grade of steel only. ​c)χu ,bal depends on both the grade of concrete and grade of steel. d)χu ,bal does not depend on the grade of concrete and grade of steel.Correct answer is option 'B'. Can you explain this answer?
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According to IS 456-2000, which one of the following statements about the depth of neutral axis χu,bal for a balanced reinforced concrete section is correct? a)χu ,bal depends on the grade of concrete only. b)χu ,bal depends on the grade of steel only. ​c)χu ,bal depends on both the grade of concrete and grade of steel. d)χu ,bal does not depend on the grade of concrete and grade of steel.Correct answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about According to IS 456-2000, which one of the following statements about the depth of neutral axis χu,bal for a balanced reinforced concrete section is correct? a)χu ,bal depends on the grade of concrete only. b)χu ,bal depends on the grade of steel only. ​c)χu ,bal depends on both the grade of concrete and grade of steel. d)χu ,bal does not depend on the grade of concrete and grade of steel.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for According to IS 456-2000, which one of the following statements about the depth of neutral axis χu,bal for a balanced reinforced concrete section is correct? a)χu ,bal depends on the grade of concrete only. b)χu ,bal depends on the grade of steel only. ​c)χu ,bal depends on both the grade of concrete and grade of steel. d)χu ,bal does not depend on the grade of concrete and grade of steel.Correct answer is option 'B'. Can you explain this answer?.
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