A Study On The Vibration Control Of An
Ultra-high Performance Concrete Pedestrian
Cable Stayed Bridge
Author(s)
Y. J. Kim, W. J. Chin, E. S. Choi, J. Y. Kang & B. S. Kim
Abstract
The first pedestrian cable stayed bridge using ultra-high performance concrete
(UHPC) has been designed and constructed in Korea. Our research team want to
verify the practicability and feasibility of cable stayed UHPC highway bridges
by means of the actual erection of a pedestrian cable stayed UHPC bridge as a
test bed. According to the analysis and the preliminary vibration test of the
pedestrian cable stayed UHPC bridge constructed, the results indicated that
satisfactory serviceability in terms of vibration was secured for most of the
pedestrian walking load cases. However, some responses exceeding the limiting
criteria occurred in the case of impacts induced by the jumping of a pedestrian.
Accordingly, TMDs (Tuned Mass Dampers) were installed on the parapet of the
bridge in order to reduce vibrations. The TMD performance verification test
showed that the maximum acceleration response of 0.186g, measured prior to the
installation of the TMDs, reduced by more than 49% after the installation of the
TMDs to reach a value of 0.095g, satisfying the limiting criteria of 0.1g in
Korea.
Keywords: ultra high performance concrete, cable stayed bridge, vibration
control, TMD.
1 Introduction
There are very few applications of UHPC (Ultra High Performance Concrete) for
bridge structures. In Korea, a typical example is the Seonyu pedestrian girder
Keywords
ultra high performance concrete, cable stayed bridge, vibration
control, TMD
Related Book
Other papers in this volume
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