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A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?
Assume:
M-40 Grade concrete
creep coefficient = 1.6
Modulus of elasticity = 2 × 105 mPa.
Neglect the effect due to dead load.
  • a)
    54.72 mPa and 87.55 mPa
  • b)
    37.13 mPa and 59.42 mPa
  • c)
    25.41 mPa and 40.65 mPa
  • d)
    42.30 mPa and 55 mPa
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A prestressed beam of size 250 × 400 mm deep is prestressed by 1...
Prestressing force (P) =
Loss due to elastic shortening = mfc
fc = compressive stress at the level of steel
m = modular ration = 
At the location of steel tendon, y = e
fc = 4.948 + 0.9277
fc = 5.876 mPa
loss due to elastic shortening = 6.32 × 5.876
= 37.13 mPa.
Loss due to creep of concrete = mϕfc
ϕ = creep coefficient = 1.6
loss due to creep of concrete = 6.32 × 1.6 × 5.876
= 59.42 mPa.
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A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer?
Question Description
A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect 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 prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect 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 prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE). Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A prestressed beam of size 250 × 400 mm deep is prestressed by 14 tendons of 6 mm diameter. The cable is located at 150 mm from bottom of the beam. If the initial prestress in the beam is 1250 N/mm2. The loss of prestress due to elastic deformation and creep of concrete respectively will be?Assume:M-40 Grade concretecreep coefficient = 1.6Modulus of elasticity = 2 × 105mPa.Neglect the effect due to dead load.a)54.72 mPa and 87.55 mPab)37.13 mPa and 59.42 mPac)25.41 mPa and 40.65 mPad)42.30 mPa and 55 mPaCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
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