Coupling of structural areas fails in SofimshC

I create two SARs based on the same plane surface in Grasshopper. SAR 2 is 2m higher than SAR 1.

I want to make sure the mesh of SAR 2 is identical to that of SAR 1, so I manully add

sars reft >sar 1

at the end of SAR 2 definition in Grasshopper generated Sofimsch1.dat.

When running it, it shows error

+++++ warning no. 360 in program sm_createMeshByProjection
The coupled structural ares 2 and 1 cannot be meshed with a topologically identical mesh:
the number of subdivisions on the boundary do not match. The boundary edges should be coupled.

Since I use same plane surface to create multiple SARs,
Why “the number of subdivisions on the boundary do not match” as shown in Sofistik?

How to solve it?

Model is attached. Please remove “.dat” and unzip it.
Sofistik.zip.dat (38.7 KB)

Hello

The command sars reft >sar 1 only works for structural areas with no inner boundary (no holes).
So please use SOFiMSHA for this problem.

+PROG SOFIMSHA
HEAD
SYST REST
SPRI QGRP 11 12 CP 28E6 CT 28E6
END

Best regards
Frederik Höller
Your SOFiSTiK Support Team

1 Like

Thank you Höller,

There are some errors
1.

+++++ error no. 10751 in program CDB_PUT_GRP:NELMAX
Element numbers 4574 in group 11 exceed the allowed maximum: 0
Please define a larger group divisor or a higher base for the next group
Maximum element number found with internal type:
+++++ error no. 10751 in program CDB_PUT_GRP
Element numbers 4574 in group 0 exceed the allowed maximum: 1000
Please define a larger group divisor or a higher base for the next group
Maximum element number found with internal type: 170
+++++ error no. 10751 in program CDB_PUT_GRP
Element numbers 4779 in group 0 exceed the allowed maximum: 1000
Please define a larger group divisor or a higher base for the next group
Maximum element number found with internal type: 200

  1. The mesh of the two SAR is not identical

Teddy files are attached.
1.zip.dat (16.1 KB)

  1. Please read the error message. The solution is there.
    → Increase the group divisor

  2. The FE-mesh of the two SARs of you first post is identical. So please use this code. I can’t check every single step of your project. If you need more intensive support, please contact SOFiSTiK Support and ask for project support.

SofimshC1.dat (52.2 KB)