Método das Forças Exercícios 8

M\u00edtodo das For\u00e7as\n\nSa\u00edda\na) Ganh d hipostaticidade Total\n g = g\u00ee + g\u00e1\n g\u00ee = I - E - R ... Q\u00ee = 3 - 2 - O = 1\n 2 X1\n\nb) Sistema Principal. (5.1)\n\nc) Estado 0 (s\u00f3 carga)\n 7 kN/m\n 5 kN/m\n\n 24,875\n 2,125\n\n H = EHY0: 7.3 + 5.5\n VA + V8 = 46 kN\n EMHA0: ... 8V8 + 5.5,5 + 7,3,15 = 0\n V0 = 24,125\n VA = 24,875\n\n DHF (kN/m)\n\n 43,125\n 4,626\n\n 2,875\n 3,875\n\n 4,225\n 2,125\n\n Mmax d) Estado 1 (s\u00f3 X1)\n 0\n 3 5\n X1 = -\n 0,375\n \n V8 = 1.3 = 0\n Vs = 0,375\n VA = 0,625\n\nc) deformac\u00e3o (Tabela p\u00e1gina 15 - Sussekind)\nS10 = -\nS12 M8 x M0 - s/12 l M8 M0\n= - s/12. 3.1,875. 43,125\n= - s/12. 5.1,875. 44,625 = -275,391\n\nS11 = 1/3 l M11 = 1/3 8.1,875. 1,875 = 9,375\n\nf) Sistema\nS10 + S11 + X1 = 0\n- 275,391 + 9,375 X1 = 0\n=> X1 = 29,4 kN