Funicular diagram used to determine the bending moment diagram. See <a href="//commons.wikimedia.org/wiki/File:Ballon_reflux_flexion.svg" title="File:Ballon reflux flexion.svg">File:Ballon reflux flexion.svg</a>
<a href="//commons.wikimedia.org/wiki/User:Cdang" title="User:Cdang">Cdang</a>
<span class="int-own-work" lang="en">Own work</span>