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


TQS:Software B:Software C:
Mu+ 31 kN.mMu+ 30,3 kN.mMu+ 28,3 kN.m
Mu- 56 kN.mMu- 55,6 kN.mMu- 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 = 5,50 tVu = 5,58 t
Vu,design = 4,40 tVu,design = 4,47 tVu,design = 4,40 t

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Ø0,75 → øVn ≥ Vu → 4,40 ≥ 4,40 → OK!!

Área de Aço:

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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