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A doubly reinforced concrete beam has effective cover d' to the centre of compression reinforcement, ‘xu' is the depth of neutral axis,  and 'd' is the effective depth to the centre of tension reinforcement. What is the maximum . strain in concrete at the level of compression reinforcement?
  • a)
    0.0035 (1 - d'/d)
  • b)
    0.0035 (1 - d'/xu)
  • c)
    0.002 (1 - d'/xu)
  • d)
    0.002 (1 - d'/d)
Correct answer is option 'B'. Can you explain this answer?
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A doubly reinforced concrete beam has effective cover d to the centre ...


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A doubly reinforced concrete beam has effective cover d to the centre ...
Which provides protection against corrosion and fire. The purpose of the compression reinforcement is to resist the compressive forces acting on the beam, while the tension reinforcement is used to resist the tensile forces.

The effective cover is the distance from the outer surface of the concrete to the centre of the compression reinforcement. This distance is important as it determines the level of protection provided to the reinforcement against corrosion and fire.

Corrosion of reinforcement occurs when moisture and oxygen reach the reinforcement, causing it to rust and weaken. By having an effective cover, the concrete acts as a barrier, preventing moisture and oxygen from reaching the reinforcement and reducing the risk of corrosion.

Similarly, in the event of a fire, the effective cover provides insulation to the reinforcement, protecting it from high temperatures. Concrete has a high thermal resistance, and having a sufficient cover helps to maintain the structural integrity of the beam during a fire.

The required effective cover for a doubly reinforced concrete beam depends on various factors such as the exposure conditions, the type of reinforcement used, and the design requirements. It is typically specified in building codes and standards to ensure the durability and safety of the structure.

In summary, the effective cover of a doubly reinforced concrete beam provides protection against corrosion and fire to the compression reinforcement, ensuring the long-term performance and safety of the structure.
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A doubly reinforced concrete beam has effective cover d to the centre of compression reinforcement, ‘xu is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum . strain in concrete at the level of compression reinforcement?a)0.0035 (1 - d/d)b)0.0035 (1 - d/xu)c)0.002 (1 - d/xu)d)0.002 (1 - d/d)Correct answer is option 'B'. Can you explain this answer?
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A doubly reinforced concrete beam has effective cover d to the centre of compression reinforcement, ‘xu is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum . strain in concrete at the level of compression reinforcement?a)0.0035 (1 - d/d)b)0.0035 (1 - d/xu)c)0.002 (1 - d/xu)d)0.002 (1 - d/d)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 A doubly reinforced concrete beam has effective cover d to the centre of compression reinforcement, ‘xu is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum . strain in concrete at the level of compression reinforcement?a)0.0035 (1 - d/d)b)0.0035 (1 - d/xu)c)0.002 (1 - d/xu)d)0.002 (1 - d/d)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 A doubly reinforced concrete beam has effective cover d to the centre of compression reinforcement, ‘xu is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum . strain in concrete at the level of compression reinforcement?a)0.0035 (1 - d/d)b)0.0035 (1 - d/xu)c)0.002 (1 - d/xu)d)0.002 (1 - d/d)Correct answer is option 'B'. Can you explain this answer?.
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