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General Design

Last modified by IwonaBudny on 2019/01/23 11:02

Contents


 2nd order internal forces + 1st order design

In FEM-Design 18, an additional method for considering imperfections of bars: 2nd order internal forces + 1st order design is introduced.  If that method is chosen, the internal forces will be taken from the 2nd order analysis, but the design will be performed according to methods of EC.

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Example

The following example shows a simple steel structure calculated with the three available calculation parameters:

  • Ignore 2nd order
  • Consider 2nd order, if available
  • 2nd order internal forces + 1st order design

Loads and imperfections:

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Utilization results for the middle column:
 

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User defined filter out of design group

It is now possible to create an User defined filter out of a design group. This is useful in situation such when  a structural property (e.g. material, thickness, etc) of all design group members has to be modified.

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