5.1 Structural modelling for analysis
5.2 Global analysis
5.2.1 Effects of deformed geometry of the structure
5.2.2 Structural stability of frames
5.3 Imperfections
5.3.1 Basis
5.3.2 Imperfections for global analysis of frames
(2) Diamonds supports global imperfections using equivalent horizontal forces (Figure 5.3) during the elastic analysis. Φ is set to 1/200 by default. It’s up to the user to define the correct value. This can be done in the dialog for the elastic analysis 
.
Local bow imperfections are not supported in the elastic analysis.
5.3.3 Imperfection for analysis of bracing systems
5.3.4 Member imperfections
5.4 Methods of analysis considering material non-linearities
5.4.1 General
(1) Diamonds only supports an elastic global analysis.
5.4.2 Elastic global analysis
5.4.3 Plastic global analysis
Not supported by Diamonds.
5.5 Classification of cross sections
5.6 Cross-section requirements for plastic global analysis
Not supported by Diamonds.
