Consider the beam shown in $($Figure $1$

$).$ Assume the support at A is a pin and B is a roller. Solve this problem using

the basic method.

Figure

Part A

Draw the influence line for the vertical reaction at A$.$ Indicate the values of the influence line at each marked point along the beam.

Click on "add vertical line off" to add discontinuity lines. Then click on "add segment" button to add functions between the lines.

Note $-$ Draw discontinuity lines at each marked point along the beam.

No elements selected

Select the elements from the list and add them to the canvas setting the appropriate attributes. Press TAB to go to the next option. Press

ALT$+$Y to get to the elements on the canvas. Press ALT$+$A to modify the attributes. Press ALT$+$Q$)$ to quit the application.

Then also graphs for vertical reaction at B$,$ the shear just to the right of A$,$ and the moment at C