This study was conducted with the aim of improving the state of knowledge on the behavior of joints in
concrete pavements, and to explore the feasibility of developing a non-destructive testing technique based on
the frequency response of dynamically loaded joints. One of the objectives of the present study was to
experimentally investigate the existence of a relationship between load transfer capacity of a joint in rigid
pavements and its dynamic response. the experimental study involved the application of an impact testing
approach for the evaluation of two test systems. One system represented an ideal condition of full load transfer
across a joint, while the other system was used to simulate variable load transfer conditions. Acceleration-time
histories captured from both sides of the joint, under short load pulses, were used for analysis both in the time
and frequency domains. These results provided a comprehensive description of the joint response characteristics,
and enabled the derivation of a clear relationship between the response frequencies and the joint's shear transfer
capabilities. These results may be used as the starting point for the development of a precise non-destructive
testing method for a wide range of cases in which shear transfer across discontinuities in concrete systems is
a principal load resisting mechanism. Specific conclusions and recommendations on future developments have
Palmieri, Lucio; Krauthammer, Theodor.
Vibration spectroscopy for rigid pavement joint assessment.
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