Desafio Nota Máxima - Mecânica dos sólidos - Cola na Rede

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quarta-feira, 13 de dezembro de 2017

Desafio Nota Máxima - Mecânica dos sólidos

// (ID 261200) 
CONHECIMENTOS BÁSICOS DE ENGENHARIA > MATEMÁTICA E MÉTODOS NUMÉRICOS
50 PONTOS153 SEGUNDOS

A viga representada a seguir foi utilizada na construção de uma ponte na região sudeste do Brasil, ela tem as seguintes dimensões:
a) Comprimento: 1400cm
b) Altura: 80cm
c) Largura: 40cm

Viga V1
.com/blogger_img_proxy/
Fonte: elaborado pelo autor.

Calcule o peso próprio da viga considerando que o peso específico do concreto armado é de 25kN/m³, assinalando a seguir a alternativa correta.

  • 224kN.
  • 2240kN
  • 186 kN.
  • 1120kN
  • 112kN.

Resolução da questão

Veja abaixo o comentário da questão:
1º Passo:
Calculo do volume de concreto:
Transformando para as dimensões para metros teremos:
a) Comprimento: 14 m
b) Altura: 0,80m
c) Largura: 0,40m
O volume de concreto na viga é: 14m x 0,80m x 0,40m = 4,48m³
2º Passo
O peso específico do concreto é 25kN/m³
Logo:
4,48 x 25 = 112 kN

Comentário da sua resposta:

Colocamos abaixo uma breve explicação sobre a alternativa que você marcou errada:
  • Resposta correta.

// (ID 331) 
CONHECIMENTOS BÁSICOS DE ENGENHARIA > MECÂNICA DOS SÓLIDOS
0 PONTOS44 SEGUNDOS

Será executado um aterro de 3 m de altura sobre um perfil geotécnico composto de uma camada de areia de 1,5 m de espessura sobrejacente a 4 m de solo mole, conforme esquema a seguir.
.com/blogger_img_proxy/

Considerações:
Nível d’água (N.A.) na superfície do terreno natural.
A tensão total é constante com o tempo após a execução do aterro.
Peso específico saturado médio da camada mole = 14 kN/m3.
Peso específico do aterro = 18 kN/m3.
Peso específico da água = 10 kN/m3.
Peso específico saturado da areia = 16 kN/m3.
Tensão de sobreadensamento ou pressão de pré-adensamento da argila = 25 kN/m2 ( σ’vm).
Índice de vazios inicial médio da camada de argila (e0) = 1,8.
Coeficiente de compressão da argila (Cc) = 1,0.
Coeficiente de recompressão da argila (Cs) = 0,1.
H = espessura da camada de argila.
σ ’vf = Tensão efetiva final (kN/m2).
σ’vo = Tensão efetiva inicial no meio da camada de argila (kN/m2).
A magnitude do recalque a tempo infinito pode ser estimada a partir da equação:
.com/blogger_img_proxy/

Qual será o recalque primário no ponto R, ao final do adensamento dessa camada de argila mole?
  • .com/blogger_img_proxy/
  • .com/blogger_img_proxy/
  • .com/blogger_img_proxy/
  • .com/blogger_img_proxy/
  • .com/blogger_img_proxy/

// (ID 247669) 
CONHECIMENTOS BÁSICOS DE ENGENHARIA > MECÂNICA DOS SÓLIDOS
50 PONTOS21 SEGUNDOS

A figura mostra uma placa de 30 kg sustentada por uma barra homogênea de 1,0 m de comprimento e 10 kg, através de um fio amarrado à barra a 75 cm de sua extremidade esquerda, no ponto A. Outro fio sustenta a barra com uma parede vertical. Em A, a articulação prende a extremidade esquerda da barra.
 .com/blogger_img_proxy/
Fonte: o autor.

Sendo a aceleração da gravidade igual a 10 m/s2 e os fios ideais, determine os valores aproximados das componentes ortogonais da força que a extremidade esquerda da barra recebe da articulação no ponto A.

  • 512,2 N e 164,5 N.
  • 536,8 N e 226,0 N.
  • 476,3 N e 125,0 N.
  • 450,0 N e 127,2 N.
  • 494,5 N e 212,6 N.

Resolução da questão

Veja abaixo o comentário da questão:
DCL da barra:
.com/blogger_img_proxy/
Fonte: o autor.
O sistema de equações e assumindo o ponto A da barra para o momento:
data:image/png;base64,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
Aplicando o valor de B nas equações anteriores, chega-se a data:image/png;base64,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.

Comentário da sua resposta:

Colocamos abaixo uma breve explicação sobre a alternativa que você marcou errada:
  • DCL da barra:
    .com/blogger_img_proxy/
    Fonte: o autor.
    O sistema de equações e assumindo o ponto A da barra para o momento:
    data:image/png;base64,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
    Aplicando o valor de B nas equações anteriores, chega-se a data:image/png;base64,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.

// HIBBELER (ID 7746) 
CONHECIMENTOS BÁSICOS DE ENGENHARIA > MATEMÁTICA E MÉTODOS NUMÉRICOS
50 PONTOS56 SEGUNDOS

(Hibbeler-7ed) A mudança no peso de um avião é determinada pela leitura de um extensômetro A montado no suporte de alumínio da roda do avião. Antes de o avião ser carregado, a leitura do extensômetro no suporte é ε1 = 0,00100 mm/mm, ao passo que, após o carregamento, é ε2 = 0,00243 mm/mm. Determine o acréscimo na força que age sobre o suporte se a área da seção transversal dele for 2.200 mm², Eal = 70 GPa.

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  • 220,22 kN
  • 154,00 kN
  • 374,22 kN
  • 128,5 kN
  • 154,00 N

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