Given the modular ratio as m, the steel ratio as r, and the total depth of a beam as d, what is the formula for the depth of the critical neutral axis in the beam?

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Subject: RCC Structures Designcivil-engineering-mcqs › rcc-structures-design
Published: 14 Jan 2019
Last updated: 28 May 2026

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Explanation

The depth of the critical neutral axis in a beam, when considering the modular ratio (m) and steel ratio (r), is calculated using the formula (m / (m + r)) × d. This formula accounts for the combined effect of the modular and steel ratios on the neutral axis position.

Practice related questions from the same subject.

1.Which of the following statements about lateral reinforcement in R.C.C. columns is accurate?
2.Identify the statement that is incorrect from the options below regarding reinforcement in retaining walls.
3.In a simply supported slab, at what fraction of the span are alternate reinforcement bars shortened?
4.What type of foundation is typically used for multiple columns built in a reinforced cement concrete wall?
5.What happens to the depth of the neutral axis when the steel content is increased?
6.If the lap length in tension reinforcement exceeds which of the following values, should it not be less than the bar diameter multiplied by (actual tension divided by four times the allowable average bond stress)?
7.What is the effective width of a column strip in a flat slab system?
8.When should the dimensions of a beam be modified based on the shear stress value?

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Given the modular ratio as m, the steel ratio as r, and the total depth of a beam as d, what is the formula for the depth of the critical neutral axis in the beam?

Explanation

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