...
The
...
...
...
enables
...
modeling
...
of
...
...
bridge
...
restrainers
...
at
...
...
locations
...
where
...
the
...
superstructure
...
connects
...
to
...
substructure
...
systems.
...
Users
...
may
...
specify
...
restrainer
...
properties
...
through
...
the
...
Bridge
...
>
...
Restrainers
...
menu.
...
Restrainer
...
properties
...
may
...
be
...
defined
...
according
...
to
...
equivalent
...
link
...
properties
...
or
...
cable
...
restrainer
...
characteristics,
...
in
...
which
...
case
...
link
...
properties
...
are
...
calculated
...
from
...
cable
...
properties.
...
Definition
...
is
...
shown
...
in
...
Figure
...
1:
Figure 1 - Bridge restrainer data
For each definition method, the bridge modeler creates links which connect bent-cap joints to bearing joints as follows:
- Restrainer defined by link properties: creates single link connecting bent cap joint to bearing joint.
- Restrainer defined by cable characteristic: creates two links connecting bent cap joint to bearing joint. The gap and hook properties assigned to each link provide for cable tension such that the cable is only effective when the superstructure moves away from the substructure.
Please note that the restrainer links share the same location as the bearing links.
Visuals and additional details are presented in Figure 2:
Figure 2 - Link assignment
See Also
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