3.8.1 Export Model to DStV
Last updated
Last updated
One option for sending model data from Karamba3D to RStab or Robot is via “DStV”-file which is a “STEP”- derivative. It is limited to beam structures. In order to export slabs, plates and shells use the SAF-format (see here).
In order to create an exchange file place a “Export Model to DStV”-component on you definition and feed it with a model via the “Model”-plug. The “Path”-plug lets you chose a name for the exchange-file. RStab names cross sections and materials depending on the selected language. Therefore set RStab to “English” before importing Karamba3D DStV-files. The output-plug “DStV” returns the export-file as a list of strings which can be viewed with a “Panel”- component. Check the output of the “Info”-plug to see whether Karamba3D encountered problems during export.
The different versions of RStab and Robot interpret some aspects of DStV data differently. For example distributed, projected loads will not be imported correctly in all versions of RStab. Therefore you should always compare the structural response calculated with the exported model in RStab or Robot to that obtained with Karamba3D. In DStV-files the export of standard cross sections works via their name. RStab and Robot show slight differences in naming them: for example a “HEAA100” in Karamba3D is the same as a “HE100AA” in Robot and a “HE100A” in RStab. In order to get the standard cross sections right one needs to convert their names in the exported file. Karamba3D applies the conversion tables “CrossSection NameAliases_Robot.csv” and “CrossSectionNameAliases_RStab.csv” for Robot and RStab respectively.
One can open them with either a text editor or a spreadsheet program. In case the first row contains a “#” the rest is a remark. The second row contains the cross section name as used in Karamba3D, the third the alias, the fourth a user defined name or nothing. Currently the name conversion tables which come with Karamba3D do cover many but not all cross section names. In case there is no alias for a cross section name it gets exported as a non-standard cross section.