Skip to main content
B
BPP1-Visitor
1-Visitor
November 4, 2016
Question

Bending moment

  • November 4, 2016
  • 1 reply
  • 2244 views

Hello everyone.

I'm trying to calculate the diagrams of bending moment and shear forces of a beam, I performed two analyzes, one starting from the left side and the second from the right side, but I could not get the same results. Hope someone can help me.

Thanks in advance.

1 reply

M
MJG1-Visitor
1-Visitor
November 4, 2016

You don't have static equilibrium.

B
BPP1-VisitorAuthor
1-Visitor
November 4, 2016

You're right Mark, i forgot one angle (alpha). Correct the attachment

M
MJG1-Visitor
1-Visitor
November 4, 2016

Your left side analysis looks correct.

For your right side analysis, you need to decide where x=0 is.  Assuming you want the diagrams to be identical, and not mirror images, then I assume you want x=0 to be just above R21.  However, your definition of Mz1 treats x as if the origin is at Wload.

Also, please note that static equilibrium is still not met exactly, but it's close.  So once you correct your equations, there will still be some minor variation between your left and right side analyses.

Terms & ConditionsCookie settingsAccessibility statement