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Floor load error in STAAD Pro Connect

CDLD

Structural
May 20, 2020
226
I've encountered quite a dangerous error using "floor loads" in STAAD pro Connect and would like to see if anyone has had a similar issue.

Below is a snapshot of a ~105 ft stair tower where I've grouped all the landings as a floor group.
I applied a floor live load to this group of 4.79 kPa (100 psf).
You can see from the loading animation that the floor load seems to be correctly applied to all landings.
1746538407286.png

However, when looking at the support reactions it is obvious that the program is considering the loading from one landing only (instead of 12 landings)!
The total live load for all 12 landings should be approximately ~135 kN.

1746538516210.png
 
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Each floor should be at one elevation only. Doesn't the software give you a running when running analysis?
 
Yeah exactly, I've separated each elevation into separate groups and it works as expected.

There was no warning provided.
The danger is that the UI displays the loading as if it is properly distributed to all landings.
 

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