图示结构有个多余约束。https://p.ananas.chaoxing.com/star3/origin/eabd443d740dc61c50fa9ac0b690a37a.png
举一反三
- 图示结构的零杆有 根。https://p.ananas.chaoxing.com/star3/origin/c6149c0b45a8c883a4c2c05069b7e4a2.png
- 以下说法正确的是 https://p.ananas.chaoxing.com/star3/origin/32620d45b840963fcfd2a9e499329436.png https://p.ananas.chaoxing.com/star3/origin/be2489a6491756903a1a67528363e754.png https://p.ananas.chaoxing.com/star3/origin/c5d98544629d58d5c134ed8bc9743922.png https://p.ananas.chaoxing.com/star3/origin/eef7c4f0c58f9f292270fbd5e9600bd3.png
- 图示结构是次超静定结构。https://p.ananas.chaoxing.com/star3/origin/5643b2595e1b5f76e3db2a1ebf4ec034.jpg
- 图示桁架有:FN1=FN2=FN3= 0。https://p.ananas.chaoxing.com/star3/origin/7755ae2c01506409997cd5592302bd81.png
- https://p.ananas.chaoxing.com/star3/origin/b31898e8d988e836116efe3cba9a910f.pnghttps://p.ananas.chaoxing.com/star3/origin/fb8dc50d75c1b761d9389a77bc20b4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/7e75cd17522334f54b2eaedb009dba9a.png