- #1

- 9

- 3

- Homework Statement
- I was hoping someone could help me determining the reaction forces of a plate supported at three points (see image attached). I was able to find the reaction with only the weight of the plate, but now there is a force with three vectors Px, Py and Pz acting at a point on the plate. So basically with the addition of forces in the x and y axis, I now have to find the reaction forces at all three supports in all 3 vectors (i.e. 9 variables). But with only 6 equations of equilibrium. I was able to find All reactions in the z axis; Az, Bz, Cz ( which by the way is not shown in the images attached). But I am stuck as the X and Y axis reactions can only be expressed interms of each other ( e.g., Ay = Cx × constant) as only eqn 3 (sum of Mz) relates them, so I am unable to solve it.

I know this actual system is not statistically indeterminate nor imbalanced as it is used in real life applications. So am I missing something important here. Pls help!!!

- Relevant Equations
- Sum of forces =0

Sum of moments =0