M. To add an EC8 response spectrum
Floor height is determined by the program as a joint where one or more beams frame in a column.
Eurocode 8 requires the use of cracked section stiffness
when considering concrete buildings, which however is lacking in the current
analysis engine. This can be overcome by using a section reduction factor as
suggested in the code.
STAAD.Pro has a
section reduction factor
that can be used for this
purpose (i.e., the
MEMBER CRACKED
command). Refer to
TR.20.10 Member Property Reduction Factors for details on this command.
This response spectrum may be used with a linear, elastic analysis, geometric nonlinear analysis, or a pushover analysis for review of Eurocode 8 seismic requirements in the workflow.