How to show the moment equation for the moment diagrams

[ali-15-04-1993]

As the title says how can you show the moment equation for the moment diagrams?

[Artur.Kosakowski]

If you mean the formula used to calculate a value of bending moment in a given point then it is not possible. 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[StefanoPasquini6790]

Hi Ali,

One way can be this:

1) create your own spreadsheet linked with the robot model via octopus;

2) import, for a specific load case, selectable in excel, the moment value along the beam that you want to investigate. Obviously you have to import a lot of points in different coordinate to have more precision. I suggest you to import 5 points for meter.

3) create in excel your own moment diagram, assign it a tendency line and let excel give you the formula for tendency line.

Obviously everything have to be referred to load and coordinate.

Try by yourself, as I can see you are very young and this is a good chance to grow out your bones, post the results when you have done.

Greetings .

[HoshangMustafa]

Hi

How to show the moment equation for the moment diagrams

As the title says how can you show the moment equation for the moment diagrams?

I think you mean showing negative moment coefficients at the ends and positive moment coefficients at the middle (like ACI coefficients for beams and one way slabs, or moment coefficients for Diret Design Method and Equivalent Frame Method) in the analysis module.

Autodesk Robot Structural Analysis uses matrix methods (finite element methods) to analyze the structure. So it uses stiffness matrices, load matrices and material matrices to find displacements and then finding forces in the members.

If you mean showing design equations (e.g, equations for designing a beam according to ACI code, for shear for flexure, for torsion, etc..

or designing a steel beam according to AISC)

then ARSA shows these equations in the calculation notes.