Direct Force Measurements On A Submerged
Bridge Model
Author(s)
A. Cigada, S. Malavasi, M. Vanalil
Abstract
A measurement system to characterise the hydrodynamic forces due to the
interaction between a free surface flow and a bridge deck model of rectangular
cross section has been developed. This topic has not been explored exhaustively
in literature and the long lasting experience acquired in wind tunnel tests served
as a reference.
In addition to the wind tunnel measuring techniques the actual experimental
situation raises new problems, both for the characteristics of instrumentation and
the definition of boundary conditions.
Two possible solutions have been analysed to evaluate the dynamic forces
exchanged between the flow and the bridge: distributed pressure taps and direct
force measurements.
A couple of ad hoc dynamometers using strain gage transducers has been built.
T
Keywords
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