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In RCC beams, as the percentage area of tensile steel increases
  • a)
    Depth of neutral axis increases
  • b)
    Depth of neutral axis decreases
  • c)
    Depth of neutral axis does not change
  • d)
    Lever arm increases
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In RCC beams, as the percentage area of tensile steel increasesa)Dept...
As the percentage area of steel increases, the depth of the neutral axis will increase.
In a balanced section, an increase in the area of steel will result in higher tensile stress carrying capacity.
To counteract or generate equivalent compressive stress/force, the neutral axis has to come down.
In a singly reinforced rectangular beam section,
implies that
xu∝Ast
which means as the percentage area of tensile steel increases the depth of the neutral axis increases
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In RCC beams, as the percentage area of tensile steel increasesa)Depth of neutral axis increasesb)Depth of neutral axis decreasesc)Depth of neutral axis does not changed)Lever arm increasesCorrect answer is option 'A'. Can you explain this answer?
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