Location of Zero BM

There are two methods to find the zero bending moment location.

1. Double click on the member to open the member query box > go to "Shear Bending" tab and select the load case. If there is any zero bending moment value, corresponding distance will be displayed in the diagram.

2. You can create a code using the following OpenSTAAD function --

Output.GetIntermediateMemberForcesAtDistance memb, dist, LC, force

Now by specifying different distance, check at which distance the force(5) element is close to zero and that is the distance of the zero Mz bending moment location.

Thank you for your response, I use that code. But where do we find the codes like you mentioned?

You can create your own code using relevant OpenSTAAD functions. For example, I have created one to print the zero bending moment location using the above mentioned OpenSTAAD function as shown in the following video.

Thank you very much.