Vigas - Flexão Simples 2

FLEXÃO SIMPLES

Neste exemplo, será dimensionada a armadura longitudinal e transversal de uma viga submetida a Flexão Simples utilizando como base a Norma Cirsoc-2005, conforme dados abaixo:

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Concreto: H-25 / Aço: ADN420

bw: 20 cm / h: 60 cm

Mu:

TQS = 52,0 kN.mSoftware B = 53,6 kN.mSoftware C = 52,0 kN.m

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Flexão:


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TQS = 3,30 cm2Software B = 3,36 cm2Software C = 3,84 cm2

3,39 cm² ≥ 3,30 cm² → OK!!

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øMn (70,38 KN.m) ≥ Mu (52,00 KN.m) → OK!!

Cortante:

TQSSoftware BSoftware C
Vu = 4,56 tVu,design = 3,36 tVu = 4,37 tVu,design = 3,33 tVu = 4,53 tVu,design = 3,30 t

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62c10ce43d27d61c466867e61c9e123b.png62c10ce43d27d61c466867e61c9e123b.png OK!

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Ø0,75 → øVn ≥ Vu → 3,36 ≥ 3,36 → OK!!

Área de Aço:

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1a5b39d95181673f2a90c0c8c79359af.png1a5b39d95181673f2a90c0c8c79359af.png 0,00 ≤ 1,55 → Adotado 4ab3c11a642ded3c352fedae41c99a35.png!!

Espaçamento:

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Øt = 6 mm → Av = 2,00 cm²/m → ø6 c/ 28 cm

    øVn (10,66 t) ≥ Vu (3,36 t) → OK!!


    Vigas - Flexão Simples 1
    Vigas - Flexão Simples 3