| 支承情况 | 变形约束条件 | 静力约束条件 | |||
| A-B-C | A | B | C | A | C |
| 固支–定向–固支 | w1(0) = 0 w'1(0) = 0 | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = 0 w'2(l) = 0 | FA = ? MeA = ? | FC = ? MeC = ? |
| 固支–定向–铰支 | w1(0) = 0 w'1(0) = 0 | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = 0 w'2(l) = ? | FA = ? MeA = ? | FC = ? MeC = 0 |
| 固支–定向–定向 | w1(0) = 0 w'1(0) = 0 | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = ? w'2(l) = 0 | FA = ? MeA = ? | FC = 0 MeC = ? |
| 固支–定向–自由 | w1(0) = 0 w'1(0) = 0 | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = ? w'2(l) = ? | FA = ? MeA = ? | FC = 0 MeC = 0 |
| 铰支–定向–铰支 | w1(0) = 0 w'1(0) = ? | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = 0 w'2(l) = ? | FA = ? MeA = 0 | FC = ? MeC = 0 |
| 铰支–定向–定向 | w1(0) = 0 w'1(0) = ? | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = ? w'2(l) = 0 | FA = ? MeA = 0 | FC = 0 MeC = ? |
| 铰支–定向–自由 | w1(0) = 0 w'1(0) = ? | w1(x) − w2(x) = 0 w'1(x) = 0,w'2(x) = 0 | w2(l) = ? w'2(l) = ? | FA = ? MeA = 0 | FC = 0 MeC = 0 |