长宽/高分块面积上缘距离静矩自身惯矩
翼板200.0015.003000.007.5022500.0056250.00三角承托70.0010.00700.0018.3312833.333888.89腹板20.00150.003000.0090.00270000.005625000.00下三角20.0020.00400.00158.3363333.338888.89马蹄60.0045.002700.00187.50506250.00455625.00∑9800.00874916.67
翼板160.0015.002400.007.5018000.0045000.00三角承托70.0010.00700.0018.3312833.333888.89腹板20.00150.003000.0090.00270000.005625000.00下三角20.0020.00400.00158.3363333.338888.89马蹄60.0045.002700.00187.50506250.00455625.00∑9200.00870416.67
ds=ys-yi6=1*5*5I=Ii+Ix
81.7820062536.6620118786.66ys ks
70.943523123.633527012.5289.2848.77
-0.721567.275626567.27
-69.061907499.221916388.11p
-98.2226048834.0126504459.010.55
57693213.58
87.1118211777.1318256777.13
76.284072745.084076633.97ys ks
4.6163770.335688770.3394.616
5.94
-63.721624239.431633128.31
-92.8923296836.2323752461.23
53407770.98