The various construction phases during the construction of a construction project are called construction stages.
Problem Background
The construction of buildings is usually carried out in stages. As a result, the dead loads due to the unfinished, connected structural parts already become active and have to be absorbed by the existing structures until the subsequent stage of a structure is completed.
If the loads are too great for the existing structures, it is necessary to build auxiliary structures.
Options in RFEM
There are two options to consider the construction stages in RFEM:
- Add-on "Construction Stages Analysis"
- Deactivating certain structures for the individual load cases or combinations
The Construction Stages Analysis (CSA) add-on calculates the model through the individual construction stages using nonlinear FEM. This method allows you to consider nonlinearities and redistributions due to removing model elements.
In RFEM, you can deactivate the individual structural elements (members, surfaces, solids, supports) for a load case or a load combination, and thus manually create the desired construction stage for this load case. This can be done using a structure modification, in which certain object selections (OS) can be deactivated.