Dynamics
Earthquake Analyses

Option D of STATIK-6

Mass Model

• Each dynamic analysis needs a mass distribution, in which all the masses of a structure are combined
• A mass distributions is handled much like a loading
• It may contain self masses, line masses and point masses with excentricities
• Loadings containing only gravity loads can be used as mass distributions
• Mass distributions may be combined (e.g. of story masses) with graphic display of mass centers

Natural Vibrations

• Frequencies and mode shapes
• Tabular output of
• • Eigenfrequencies
  • Modal participation factors for the excitations directions X,Y,Z
  • Eigenmodes sorted after descending effective modal masses
• Graphic representation of mode shapes (rendered)

Earthquake Analyses

Earthquake analyses can be specified for all kinds of structures. They are automatically generated by building models defined by CEDRUS-6.

Specra

• Spectra can be defined by entering the parameters according to the used design code or individually by entering polygonal curves

Equivalence (Lateral) Force Method

• The method ist useable mainly for building models generated by CEDRUS-6, especially for the comparison with results from a response spectrum analysis.
• The fundamental periods can be given or evaluated by the program
• The used specrum may be reduced to a constant maximum (=plateau) value

Response Spectrum Analyses

• Superposition of the modal components by the SRSS or the CQC method
• Combination of the results of two perpendicular excitation directions according to Eurocode or
• Envelopes of results from several excitation directions
• Method for evaluation of section force envelopes for one component including the values of the accompanying components (incl. correct sign)

Design of reinforcements (classic) for the design situation earthquake (FAGUS-6(A) license needed).