Embedded data collector (EDC) phase II load and resistance factor design (LRFD) : [summary].
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2015-07-01
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Abstract:Piles that support bridge structures are designed for the specific site characteristics and loads
that the piles are expected to bear. In Florida, driven piles are monitored during installation
(“dynamically” tested) to assess resistance, compressive, and tensile stresses and to provide
production pile lengths and driving criteria
based on test pile findings (depth to bearing
layer, required hammer settings, etc.). Dynamic
load testing of driven piles is cost effective
and has proven to be a reliable alternative to
static load testing. Conventional dynamic load
testing has historically been performed by
climbing the leads to connect instrumentation
(strain gauges and accelerometers) to the
pile head after the pile has been raised into
position. The current effort focused on the
Embedded Data Collector (EDC) system, originally developed through research funded by the
Florida Department of Transportation (FDOT) and consisting of gauges cast into concrete piles,
eliminating the need for climbing leads on site. The system uses wireless technology to transmit
data to a receiver on the ground.
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