Title page for ETD etd-06222010-020406
|Type of Document
||Dynamic analysis and active control of two cable-stayed bridge.
|Yang, J. N.
|Heller, Robert A.
|Telionis, Demetri P.
|VanLandingham, Hugh F.
|Date of Defense
The feasibility of applying active control theory to
control both the transient and steady state response of a
two cable-stayed bridge has been investigated. The bridge
has been modeled as a two degree freedom system in bending
and torsion, excited by both buffeting and self-excited
loads. The existing suspension cables have been used as
active tendons by which the control forces are applied to
the bridge deck at the points of the anchorage. The control
force from each suspension cable is actuated through a
hydraulic-servomechanism which is regulated by the sensed
motion of the bridge deck at the anchorage of the cable.
Stability and steady state response analyses have been presented
for both controlled and uncontrolled motion. The
power requirement for the control devices has been derived.
Finally, numerical examples have been worked out to demonstrate
the feasibility of the derived theory for two cable-stayed
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