Tendon does not display curved section (Round definition)

Question:

Hello:

I'm defining a tendon and it does not appear to display round section.  See attached input file and picture.  The preview picture in the editor actually shows the rounded section, so it seems there is a problem in the execution on the model itself.  See attached pictures of the tendon in the model and the preview in the editor.  I have done very similar tendon definition in the past and it displayed the round sections correctly.  





Answer:

Hello,

The image files were not attached.  Kindly resend for better understanding the issue.
However, I believe the issue must be with how the tendon is being displayed graphically.  The tendon is of External type, hence it would be having abrupt changes in profile.  If the tendon property is internal, then the profile would follow curves, especially if defined with spline option.
If that doesn't answer the question, I'll get back once I get the images.  Kindly let us know if further assistance would be required.

Regards,
Nandeep
Technical Manager, MIDAS


Hi.  I attempted to attach images in my original inquiry (the card indicated they were being attached), but seems they did not make it to the inquiry.  Please see files attached.

My other model (where the display of round sections was correct) was indeed an internal tendon, not external.  This one is intended to be external with deviation blocks with 16 ft radius.  Therefore, my question is whether this is just a "display" issue, or it's a "model" issue. In other words, is the program ignoring radius entry on the display level (but actual tendon definition is calculated as expected), or is it actually ignoring it on the modelling level?  If it is the latter, what is a proper procedure to accomplish such round deviation of the external tendon, if "round" definitions don't work?  One that comes to mind is multiple points, approximating the path.  Is there any better one?




Hello,

For external tendon, this is actually ignored since there is no way to specify the size (like length) of the deviator block.  Hence, the only way to consider this as a radial change would be to make multiple points on the tendon.  Kindly note that the element too would have to be divided in this region to better consider the effect of curvature in tendon.
Kindly let us know if further assistance would be required.

Regards,
Nandeep
Technical Manager, MIDAS

Thank you.  This clarifies the issue.  Perhaps, as a future enhancement, it would be useful to enable an external tendon definition using lines and curves, to approximate actual shapes of the deviation and end blocks that are usually embedded in the structure and act in somewhat similar way to internal tendons (within those limits).  This would save the designer time of defining curved transitions point-by-point.  

Anyway, I appreciate your help.  


Hello,

Thank you for the suggestions.  Its always a pleasure to know how we can improvise!
I'll put this up in our development wish-list.  Kindly let us know if further assistance would be required.

Regards,
Nandeep
Technical Manager, MIDAS
Creation date: 10/17/2018 10:58 PM (dklee@midasit.com)      Updated: 10/18/2018 8:28 AM (dklee@midasit.com)
Files   
example.mcb
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Preview.JPG
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Profile.JPG
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