Vigas - Flexão Simples - Viga Continua 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


TQSMu+ 31 kN.m / Mu- 56 kN.mSoftware BMu+ 30,3 kN.m / Mu- 55,6 kN.mSoftware CMu+ 28,3 kN.m / Mu- 55,1 kN.m

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Flexão+:


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TQS = 2,56 cm2Software B = 1,87 cm2Software C = 3,84 cm2

2,56 cm² ≥ 1,95 cm² → OK!!

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øMn (65,69 KN.m) ≥ Mu (31,00 KN.m) → OK!!

Flexão-:


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TQS = 3,56 cm2Software B = 3,54 cm2Software C = 3,84 cm2

3,56 cm² ≥ 3,56 cm² → OK!!

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øMn (93,23 KN.m) ≥ Mu (56,00 KN.m) → OK!!

Cortante:

TQSSoftware BSoftware C
Vu = 5,61 tVu,design = 4,40 tVu = 5,50 tVu,design = 4,47 tVu = 5,58 tVu,design = 4,40 t

eacaea16320d627a489d6de817affb32.png 7bb367397cb7c88332f5a35676605d1d.png 6346ec2aceed1908d0c62e9af60ee546.png 2fdfd84362ad02f8be905af9db2d92e6.png

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62c10ce43d27d61c466867e61c9e123b.png62c10ce43d27d61c466867e61c9e123b.png OK!

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Ø0,75 → øVn ≥ Vu → 4,40 ≥ 4,40 → OK!!

Área de Aço:

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1a5b39d95181673f2a90c0c8c79359af.png1a5b39d95181673f2a90c0c8c79359af.png0,00 ≤ 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 (4,40 t) → OK!!


    Vigas - Flexão Simples - Viga Continua 1
    Vigas - Flexão Simples - Viga Continua 3