We would love to help your development team but due to company norms we can't share the model in any open-source location. We can explain anything you need, anytime.

It would be great if you could share the STAAD models to help the development team understand real world models that the solution needs to solve.

Hi Carlos!

Yes, you are thinking right. We need the stress values resolved into the various direction to provides the reinforcement.

Thank you for sharing these illustrations. Am I right in thinking that you are need the stress values resolved into the various directions because you need to determine the forces that the reinforcement will need to be provided for? And the rebar may be be aligned with different directions within a slab which do not align with the local axes of the plate(s) or the planes of the global axes (which is available in STAAD.Pro today)?

Thanks for your response.

yes Carlos, I am saying the same.

Actually, we do modelling and design of underground structures using plate elements and there, we encounter so many cut-outs (non- rectangular and circular) and even non-rectangular structures. Because of the cutouts, we cannot maintain the local axis of plates to be symmetric. If we will have the option to get the stresses in desired direction (angle about the local z), it will help us a lot to get the actual stresses in that direction and visualization of realistic stress in that direction.

I am attaching some pictures for clarity.

In the very first image, we want the plate stresses in the horizontal and vertical direction, but it is hard to align the orientation of the plates. and the second image, since cut-outs are circular, we have to model some triangular plates which gives unrealistic stresses.

we get the option to report stress in desired direction; it will save a lot of time of ours and help us in report generation.

Thank you for posting this idea. The analysis itself will always calculate and report stresses in the plates own local axes which may be in directions, I believe you are asking for STAAD.Pro to report plate stresses:-

a) the local axes of the surface

b) provide an option to report stresses which have been resolved into a set of axes rotated about an axis perpendicular to the local surface axes (i.e. angle about the local Z axis)

Whilst this seems like a reasonable suggestion, it would help to understand in what ways you would use this information to help make sure it can can be provided in ways that could be better for the specific needs you have.

We can also do one thing that when we are doing physical modelling, we should use analytical model function just to analyze the structure. After analysis, we can get back to physical modelling section to see the plate stress in any desired direction.