516其它平面杆件单元的单刚 F 五、计剪切的自由式单元(单刚见教材41页) 六、带刚域单元 2,41 F一个E F F3+F2 00000 01000O 1000001{ 001000 F 0a010O 01a000 0O100O 000001 00010O 0000 1o{=ey}={y 000001」{i=[]y=[J 18)=[a15 -taranTaF5 F1 F2 F4 F3 F6 F1 F2 F5 F4 F3 F6 / F1 / F2 / F3 / F2 / F3 F F F F F F F a / 2 / 3 3 / 2 2 / 1 1 = , = , = + / 6 6 / 5 5 / 4 4 F = F , F = F , F = F     / 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 F a F e                     = §1.6 其它平面杆件单元的单刚 五、计剪切的自由式单元（单刚见教材41页） 六、带刚域单元 x e  1 e  2 e  3 e  5 e  4 e  6 a l /  1 /  2 /  3 /  5 /  4 /  6 l  1 =  1   2  =  2 + 3 a  3 =  3   4 =  4   5 =  5   6 =  6       e  = Td  /     e a                       = 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 /       / F T F T d e =       / / / F = k          / / F T k  T d e =        e d T Td k T  / =         d T d e k T k T / =