Bridge Seismic Analysis Testing (BSA)
CI has developed
a software package, Bridge Seismic Analysis (BSA),
which allows our engineers to probe the
performance of bridges under seismic loading.
Comparison of moments and forces generated with
and without CI LUDs enables the benefit of their
installation to be immediately demonstrated and
appreciated.
Figure 1
is a
diagram of shared moments which the package
evaluates for the configuration of a bridge
fitted with one CI LUD.
The BSA package evaluates a set of important
parameters which provide the user with the
following information concerning the bridge's
behaviour under seismic action.
-
Principal period of bridge oscillations
-
Seismic
loading intensity and elastic seismic
displacements of the bridge deck
-
Elastic
seismic moments in the bridge deck and
supports
-
Elastic
seismic forces in the bridge deck and
supports
-
Point
elastic seismic moments and forces at the
top and bottom of all the substructure
columns
