1 OKN 4kN/m 七例题矩阵位移法解图示梁,作M图 解:1.离散化2.求总刚 EL=6Y EL=24 EI 4m4m"12m 8m 4×6/81.5|1 2 1532 (1)(2) (3)(4) P=「4×241242 8又3 31.500 1.51140 31.513 04111.5 5324 001.53七.例题 矩阵位移法解图示梁,作M图. 4m 10kN 4kN/m EI1 = 6 EI2 = 24 EI1 = 6 4m 12m 8m 解: 1.离散化 1 2 3 4 1 2 3 (1) (2) (3) (4) 2.求总刚          = 1.5 3 1 4 6 /8 1.5 k          = 4 8 2 4 24 /12 4 k         = 1.5 3 3 3 1.5 k 1 2 1 2 2 1 2 1 1 2 2 3 3 2 2 1 1 2 3 4 2 1 4 3               = 0 0 1.5 3 0 4 11 1.5 1.5 11 4 0 3 1.5 0 0 k