Experimental Determination of Damping an dFrequency for a Bridge Deck Model
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Experimental Determination of Damping an dFrequency for a Bridge Deck Model
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| Creator |
Selvi Rajan, S.
Lakshmanan, N. Harikrishna, P. Ramesh Babu, G. Arunachalam, S. Jaya, K.P. |
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| Subject |
Damping
Bridge deck Dyanmics |
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| Description |
Through measurement of modal properties of the bridge deck, the stability of the bridge deck can be studied. In this regard, a special dynamic test rig assembly is developed in-house that enables speed and flexibility for mounting bridge deck models of
different configurations and testing of bridge deck models. It is instrumented with
accelerometer and strain gauges to measure the oscillations and the reactions at the ends of
the springs. Measurements are made for different wind speeds between 4.5 and 9.5 m/s at the height of the bridge deck model. The time histories of displacement and strain are further analysed using ‘MATLAB’ program to obtain the frequencies of oscillations and damping
parameters, leading to computation of flutter derivatives. The mean critical wind velocity for flutter is also evaluated for the chosen cross-section.
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| Date |
2009
2009 2008 |
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| Type |
Conference paper
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| Identifier |
Proceedings of the Sixth Structural Engineering Convention (SEC 2008), 18-20 December, Chennai, India, 2008, p.1473-1482. Jointly Organised by Structural Engineering Research Centre, Indian Institute of Technology, Anna university, Chennai.
http://14.139.176.62:8080/jspui/handle/123456789/302 |
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| Language |
en
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