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Working Stress Design CEPC323 - Principles of Reinforced Concrete

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Working Stress Design CEPC323 - Principles of Reinforced Concrete

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Questions and Answers

What is the condition for Beam Failure in the Ultimate-Strength Stage?

fr = Ma

Mc > Ms (correct)

Mc = Ms

Mc < Ms

In the Uncracked Concrete Stage, which condition must hold true?

fr > fca

fb = Mc/Ig

Ma < Mcr (correct)

fc < fs

According to NSCP 2015, what is the modulus of rupture of concrete (fr)?

fr has no relation to fca

fr is linearly related to fb

fr is constant for all stages (correct)

fr = Mc/Ig

What is the relationship between Es and Ec in the calculation of the modular ratio (n)?

n = Ec/Es Signup and view all the answers

In which stage does concrete resist no tension in reinforced concrete members?

Cracked Concrete Stage Signup and view all the answers

What is the significance of overall depth-span ratios greater than 2/5 for continuous spans and 4/5 for simple spans according to NSCP 2015?

Nonlinear strain distribution should be considered Signup and view all the answers

What is the alternate name for Working Stress Design in NSCP and ACI?

Alternate Design Method Signup and view all the answers

What are unfactored loads in reinforced concrete design?

Actual loads anticipated Signup and view all the answers

How does the Working Stress Design method assume the behavior of concrete?

Elastic Signup and view all the answers

What is the main characteristic of the stresses in Working Stress Design?

Proportional to strains Signup and view all the answers

Why are factored loads used in structural design?

To include an element of safety Signup and view all the answers