Tekla Structures forms assemblies based on where the weld should be made. You can create workshop welds and site welds.

The order in which you select parts when creating the connection determines the main and secondary parts of the assembly or the assembly hierarchy. The first part you select becomes the main part of the assembly. Tekla Structures dimensions secondary parts relative to the main part in assembly drawings. The largest main part in the weld becomes the main part of the assembly.

When you connect assemblies, the first part you select determines the assembly to which you weld sub-assemblies.

To control how Tekla Structures creates assemblies, use the Connect as and Workshop/Site lists in the Weld properties.