Separate Structure Problem

[Anonymous]

Dear all,

I have recently started using Robot and have encountered a separate structure problem which I cannot trouble shoot. I have basically modelled part of a flat slab which I would like to analyse supported on columns and and internal wall which I have modelled with a pinned reaction support. I somehow keep on getting a separate structure problem when carrying out calculations. I have checked the separate structures in my nodes selection group tab and from what I can understand, the columns and the slab are being considered as separate structures by Robot. Any idea how I can get round this problem and could you please explain to me where my modelling mistake is? Please find attached a model of what I have described above.

[Rafal.Gaweda · Accepted solution]

Columns 20 21 36 37 are not connected with slab.

Columns 20 21  are not connected to each other.
Make BIG ZOOM near nodes 2 3 27

[markjvlampad]

hi Rafal,

 I got same issue,

but mine is a big different, looking on the  robot model it works. but every time i run the analysis it shows separate structure. and when I go and check which node is separated it highlight all my nodes.

thank you,

mark

[Rafal.Gaweda]

Mark,

File please.