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A doubly reinforced concrete beam with effective cover of 50 mm to centre of both tension and compression reinforcement with effective depth of 550 mm. If the maximum permissible stress in the outermost fibres in both steel and concrete reaches at the same time, what will be the maximum strain in concrete at the level of compression reinforcement satisfying codal provisions of IS 456:2000 according to limit state method.
Take Fe 500 grade of steel for both tension and compression reinforcement and M 20 grade of concrete.
  • a)
    0.00350
  • b)
    0.00289
  • c)
    0.00284
  • d)
    0.00281
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A doubly reinforced concrete beam with effective cover of 50 mm to cen...
As the maximum permissible stress in the outermost fibers in both steel and concrete reaches at the same time, therefore it is the case of balanced section:
So,
Xu = Xulim
For Fe 500
Xulim = 0.46 d
d = effective depth of the beam = 550 mm
Xulim = 0.46 x 550 = 253 mm
d' = effective cover to compression reinforcement = 50 mm
Maximum strain in concrete at outermost compression reinforcement as per IS 456: 2000 = 0.0035
Now from similar triangle,
ϵsc = 0.00281
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A doubly reinforced concrete beam with effective cover of 50 mm to centre of both tension and compression reinforcement with effective depth of 550 mm. If the maximum permissible stress in the outermost fibres in both steel and concrete reaches at the same time, what will be the maximum strain in concrete at the level of compression reinforcement satisfying codal provisions of IS 456:2000 according to limit state method.Take Fe 500 grade of steel for both tension and compression reinforcement and M 20 grade of concrete.a)0.00350b)0.00289c)0.00284d)0.00281Correct answer is option 'D'. Can you explain this answer?
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A doubly reinforced concrete beam with effective cover of 50 mm to centre of both tension and compression reinforcement with effective depth of 550 mm. If the maximum permissible stress in the outermost fibres in both steel and concrete reaches at the same time, what will be the maximum strain in concrete at the level of compression reinforcement satisfying codal provisions of IS 456:2000 according to limit state method.Take Fe 500 grade of steel for both tension and compression reinforcement and M 20 grade of concrete.a)0.00350b)0.00289c)0.00284d)0.00281Correct answer is option 'D'. 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 with effective cover of 50 mm to centre of both tension and compression reinforcement with effective depth of 550 mm. If the maximum permissible stress in the outermost fibres in both steel and concrete reaches at the same time, what will be the maximum strain in concrete at the level of compression reinforcement satisfying codal provisions of IS 456:2000 according to limit state method.Take Fe 500 grade of steel for both tension and compression reinforcement and M 20 grade of concrete.a)0.00350b)0.00289c)0.00284d)0.00281Correct answer is option 'D'. 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 with effective cover of 50 mm to centre of both tension and compression reinforcement with effective depth of 550 mm. If the maximum permissible stress in the outermost fibres in both steel and concrete reaches at the same time, what will be the maximum strain in concrete at the level of compression reinforcement satisfying codal provisions of IS 456:2000 according to limit state method.Take Fe 500 grade of steel for both tension and compression reinforcement and M 20 grade of concrete.a)0.00350b)0.00289c)0.00284d)0.00281Correct answer is option 'D'. Can you explain this answer?.
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