To perform the geometry checks per Eurocode 8,
STAAD.Pro must first calculate the center of
mass for each defined floor. Specifying a response spectrum loading
All the analysis methods for design and evaluation of the
performance of a structure mentioned in Eurocode, as listed in the following,
are all available in STAAD.Pro:
- Linear modal
response spectrum analysis (i.e., a linear elastic analysis used in conjunction
with an EC8 response spectrum load)
static analysis (i.e., a pushover analysis)
dynamic analysis (i.e., a time-history analysis)
In order to make use
of the EC8 response spectrum load, a linear modal response spectrum analysis
should be used. This is required to locate the center of mass which is needed
to perform the associated geometry checks.
Loads are distributed by element stiffness to all members
during analysis. Thus, for the purposes of Eurocode 8, all members are assumed
"primary seismic" elements.
The EC8 response
spectrum load must be specified in the model in order to perform any further
checks, design, or detailing per Eurocode 8.