Discuss the influence of diagonal tension cracks on the tension steel stress in a flexural member.

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teamques10 ★ 69k

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Mumbai University > CIVIL > Sem 7 > Limit State Method

Marks: 5 M

Year: Dec 2012

reinforced concrete structures theory

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written 8.8 years ago by

teamques10 ★ 69k

The region near support where bending stress ${\sigma}_x=0$ & shear stress is maximum. Substitute ${\sigma}=0$ in the following equation

${\sigma}=\frac{{\sigma}_x}{2}±\sqrt{\Big(\frac{{\sigma}_x}{2}\Big)^2+z^2}$

We get , ${\sigma}_1=z \ and \ {\sigma}_2=z_1 \ θ=45^0$

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Diagonal tension cracks along BD will occur if principal stress along BD exceeds tensile strength of concrete

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