Multi-span Beam (SFD & BMD)

Select supports at nodes and add hinges (moment releases) at internal joints.
Pinned and roller behave the same for vertical-only analysis.

1) Units & spans

Units

Sign convention Applies to loads, reactions, SFD and BMD signs.

2) Supports & hinges at joints

Fixed restrains rotation (moment reaction). Hinge releases moment transfer between spans.

3) Summary

Add spans, set supports/hinges, then click Analyse beam to plot SFD/BMD.

4) Load & support sketch

Beam + supports + loads Shows after analysis.

5) Diagrams

Shear force diagram (SFD) V(x)

Bending moment diagram (BMD) M(x)

6) Export

7) Step-by-step solution

Run analysis to generate step-by-step solution (numbers + steps + diagrams).