预应力钢筋量估算 单元 位置 顶/底 Mg1 (kN*m) Msum (kN*m) Mj (kN*m) 1 I[1] 底 0 -301.9851 -301.9851 1 I[1] 顶 0 -301.9851 -301.9851 1 J[2] 底 -9.5573 -310.8343 -310.8343 1 J[2] 顶 -9.8058 -310.8343 -312.7954 2 I[2] 底 -9.5573 -299.7688 -299.7688 2 I[2] 顶 -9.8058 -299.7688 -301.7299 2 J[3] 底 633.969 343.7994 470.5932 2 J[3] 顶 612.0694 343.7994 343.7994 3 I[3] 底 633.9649 633.9638 760.7567 3 I[3] 顶 612.0654 633.9638 633.