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A concrete beam is post tensioned by a cable carrying an initial stress of 1000n/mm2, the slip at the jacking end was end was observed to be 5mm; modulus of elasticity of steel is 210kn/mm2. Estimate the percentage loss of stress due to anchorage if length of beam is 30m?
  • a)
    3.5%
  • b)
    4.5%
  • c)
    5.5%
  • d)
    8.7%
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A concrete beam is post tensioned by a cable carrying an initial stres...
Loss of stress due to anchorage slip = (EsΔ/l),
For a 30m long beam, loss of stress = (210×103×5)/(30×1000) = 35n/mm2,
Loss of stress = 35/1000×100 = 3.5%.
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Community Answer
A concrete beam is post tensioned by a cable carrying an initial stres...
Given:
- Initial stress in the cable (σi) = 1000 N/mm2
- Slip at the jacking end (s) = 5 mm
- Modulus of elasticity of steel (E) = 210000 N/mm2
- Length of the beam (L) = 30 m

Formula:
Percentage loss of stress due to anchorage (PL) = (s * E) / (L * σi) * 100

Calculation:
Substituting the given values into the formula, we get:
PL = (5 * 210000) / (30 * 1000) * 100
= (1050000) / (30000) * 100
= 35 * 100
= 3500

Therefore, the percentage loss of stress due to anchorage is 3500%, which is equivalent to 3.5%.
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A concrete beam is post tensioned by a cable carrying an initial stress of 1000n/mm2, the slip at the jacking end was end was observed to be 5mm; modulus of elasticity of steel is 210kn/mm2. Estimate the percentage loss of stress due to anchorage if length of beam is 30m?a)3.5%b)4.5%c)5.5%d)8.7%Correct answer is option 'A'. Can you explain this answer?
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A concrete beam is post tensioned by a cable carrying an initial stress of 1000n/mm2, the slip at the jacking end was end was observed to be 5mm; modulus of elasticity of steel is 210kn/mm2. Estimate the percentage loss of stress due to anchorage if length of beam is 30m?a)3.5%b)4.5%c)5.5%d)8.7%Correct answer is option 'A'. 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 concrete beam is post tensioned by a cable carrying an initial stress of 1000n/mm2, the slip at the jacking end was end was observed to be 5mm; modulus of elasticity of steel is 210kn/mm2. Estimate the percentage loss of stress due to anchorage if length of beam is 30m?a)3.5%b)4.5%c)5.5%d)8.7%Correct answer is option 'A'. 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 concrete beam is post tensioned by a cable carrying an initial stress of 1000n/mm2, the slip at the jacking end was end was observed to be 5mm; modulus of elasticity of steel is 210kn/mm2. Estimate the percentage loss of stress due to anchorage if length of beam is 30m?a)3.5%b)4.5%c)5.5%d)8.7%Correct answer is option 'A'. Can you explain this answer?.
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