![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
已知 q =2kN/m , F =4kN ,刚架支座 A 和 B 的约束反()
A.
A. F Ax =4kN( ← ) F Ay =4kN( ↑ ) F By =4kN( ↑ )
B.
F Ax =2kN( ← ) F Ay =4kN( ↑ ) F Bx =2kN( ← ) F By =4kN( ↑ )
C.
F Ax =4kN( ← ) F Ay =1kN( ↑ ) F By =7kN( ↑ )
D.
F Ax =2kN( ← ) F Ay =1kN( ↑ ) F Bx =2kN( ← ) F By =7kN( ↑ )