Shear Force and bending moment diagram

VooDoo

Hi guys,

For a Engineering Project, we will be suspending a bridge using a cantilever system. We have to draw the shear force diagram (SFD) and bending moment diagram (BMD) for the horizontal and vertical members. The arrows on the diagram represent the loading from the bridge itself.

I have no idea what the SFD or BMD should look like for the vertical member "A". I already know how to do the SFD BMD for the horizontal member, just do not know how to plot vertical member on the same set of axis as the horizontal member BC.

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Pyrrhus

Well basicly when you break apart de horizontal and vertical member you have an internal moment and an internal force with an unknown direction, you can solve this with statics, and the proceed to make the diagrams.

Although you don't need to do this, you can make them simply by using the forces at A, like a cantilever beam. You will have an axial diagram too.

civil_dude

It should also be noted that the moment and shear in the vertical portion of the member are constant.