试比较如图所示杆件各段轴力的大小[img=359x100]1803be11ccb7373.png[/img]
A: FNAB > FNBC > FNCD
B: FNAB > FNCD >FNBC
C: FNCD >FNBC > FNAB
D: FNCD > FNAB > FNBC
A: FNAB > FNBC > FNCD
B: FNAB > FNCD >FNBC
C: FNCD >FNBC > FNAB
D: FNCD > FNAB > FNBC
举一反三
- 图示变截面杆,设AB段和BC段的轴力分别为FNAB和FNBC ,则下列结论中正确的是________。[img=194x60]1802f50df8a2aa0.jpg[/img] A: FNAB = 3kN,FNBC = –6kN B: FNAB = 3kN,FNBC = –9kN C: FNAB = 3kN,FNBC = 6kN D: FNAB = 3kN,FNBC = 9kN
- 图示变截面杆,设AB段和BC段的轴力分别为FNAB和FNBC ,则下列结论中正确的是________。[img=194x60]17de93ecacc6d44.jpg[/img] A: FNAB = 3kN,FNBC = –6kN B: FNAB = 3kN,FNBC = –9kN C: FNAB = 3kN,FNBC = 6kN D: FNAB = 3kN,FNBC = 9kN
- 图示受拉直杆,其中AB段与BC段内的轴力及应力关系为()。 A: FNAB=FNBCσAB=σBC B: FNAB=FNBCσAB>;σBC C: FNAB=FNBCσAB<;σBC D: FNAB<;FNBCσAB<;σBC
- 图示拱结构中 杆AB的轴力FNAB为 QQ 20180521020846 png
- 图示拱结构中,杆AB的轴力Fnab为: