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Exam (elaborations)

exercicios de carga permanente e variavel

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Lista de exercicios resolvidos e corrigidos com nota maxima do assunto de fisica cargas permanentes e variaveis

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1) A estrutura abaixo é composta por três tramos de vigas apoiadas em quatro
pilares em concreto (P1 a P4) cujas dimensões estão indicadas em
centímetros:

P1: 19x19 P2: 25x25 P3: 14x30 P4: 12x20

Pede-se verificar e responder se os pilares resistem às cargas aplicadas.




Dados:
• Massa específica do concreto: 25 kN/m3
• Resistência do concreto: fck=55 MPa
• Coeficientes de segurança conforme utilizados em sala de aula (1,35 e 1,5
para ações e 1,4 para resistência do concreto)
• Desprezar o peso próprio da viga.


Respostas:
O Pilar P1 resiste? ( )sim ( )não
O Pilar P2 resiste? ( )sim ( )não
O Pilar P3 resiste? ( )sim ( )não
O Pilar P4 resiste? ( )sim ( )não


2) Para a estrutura abaixo, determine qual é a máxima carga que poderá ser
aplicada no meio do vão da viga V1, em kN, considerando:



Pilar P1, dimensões 40x40cm, concreto fck: 25 MPa Tirante T1, cordoalha com 28 Ø
8mm, aço fyk=500 MPa. Desprezar o peso próprio da viga

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