Modal testing of an isolated overpass bridge in its construction stages
DOI: https://doi.org/10.3846/bjrbe.2018.398Abstract
This study presents the application of ambient vibration survey based dynamic testing on an isolated, precast and pre-stressed overpass bridge during and after its construction. In the studied three-bay bridge, the girders are located on the elastomeric bearings carried by two abutments and two internal piers. The first modal testing is performed after the placement of the girders on the elastomeric bearings and dynamic properties of the uncompleted bridge are determined. After the completion of all construction works and the opening of the overpass to human traffic, the modal testing is repeated to obtain the dynamic properties of the final structure. The dynamic properties obtained in both analyses are used to interpret the effects of the performed works between two modal testing. Moreover, the structural behaviour of isolated, precast and pre-stressed bridges is evaluated in detail.
Keywords:
modal testing, dynamic identification, pedestrian overpass, construction stagesLicense
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References
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Soyöz, S., Taciroğlu, E., Orakçal, K., Nigbor, R., Skolnik, D., Luş, H., & Şafak, E. (2013). Ambient and forced vibration testing of a reinforced concrete building before and after its seismic retrofitting. Journal of Structural Engineering, 139, 1741-1752. <a href= "https://doi.org/10.1061/(ASCE)ST.1943-541X.0000568" target="_blank" rel="noopener"> https://doi.org/10.1061/(ASCE)ST.1943-541X.0000568</a>
Ubertini, F., Gentile, C., & Materazzi, A. L. (2013). Automated modal dentification in operational conditions and its application to bridges. Engineering Structures, 46, 264-278. <a href= "https://doi.org/10.1016/j.engstruct.2012.07.031" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2012.07.031</a>
Zàrate, B. A., & Caicedo, J. M. (2008). Finite element model updating: multiple alternatives. Engineering Structures, 30, 3724-2430. <a href= "https://doi.org/10.1016/j.engstruct.2008.06.012" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2008.06.012</a>
Aras, F., & Altay, G. (2015). Seismic evaluation and structural control of historical Beylerbeyi Palace. Structural Control and Health Monitoring, 22(2), 347-364. <a href= "https://doi.org/10.1002/stc.1677" target="_blank" rel="noopener"> https://doi.org/10.1002/stc.1677</a>
Bedon, C., & Morassi, A. (2014). Dynamic testing and parameter identification of a base-isolated bridge. Engineering Structures, 60, 85-99. <a href= "https://doi.org/10.1016/j.engstruct.2013.12.017" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2013.12.017</a>
Benedettini, F., & Gentile, C. (2011). Operational modal testing and FE model tuning of a cable-stayed bridge. Engineering Structures, 33, 2063-2073. <a href= "https://doi.org/10.1016/j.engstruct.2011.02.046" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2011.02.046</a>
Chan, T. H. T., Law, S. S., & Yung, T. H. (1998). Modal test on an existing concrete bridge: experience acquired. HKIE Transactions, 5(3), 8-16.
Chisari, C., Bedon, C., & Amadio, C. (2015). Dynamic and static identification of base-isolated bridges using Genetic Algorithms. Engineering Structures, 102, 80-92. <a href= "https://doi.org/10.1016/j.engstruct.2015.07.043" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2015.07.043</a>
Inman, D. J. (2013). Engineering vibration (720 p.) (4th ed.). Prentice Hall, New Jersey.
Ko, J. M., & Ni, Y. Q. (2005). Technology developments in structural health monitoring of large-scale bridges. Engineering Structures, 27, 1715-1725. <a href= "https://doi.org/10.1016/j.engstruct.2005.02.021" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2005.02.021</a>
Lin, X., Zhang, L., & Guo, Q. (2009). Dynamic finite element model updating of prestressed concrete continuous box-girder bridge. Earthquake Engimeering and Engineering Vibrations, 8(3), 399-407. <a href= "https://doi.org/10.1007/s11803-009-8127-3" target="_blank" rel="noopener"> https://doi.org/10.1007/s11803-009-8127-3</a>
Matlab. (2012). The MathWorks, Inc., Natick, Massachusetts, United States.
Min, Z. H., & Sun, L. M. (2013). Wavelet-based structural modal parameter identification. Structural Control and Health Monitoring, 20, 121-138. <a href= "https://doi.org/10.1002/stc.474" target="_blank" rel="noopener"> https://doi.org/10.1002/stc.474</a>
Michel, C., Gueguen, P., & Bard, P-Y. (2008). Dynamic parameters of structures extracted from ambient vibration measurements: An aid for the seismic vulnerability assessment of existing buildings in moderate seismic hazard regions. Soil Dynamics and Earthquake Engineering, 28, 593-604. <a href= "https://doi.org/10.1016/j.soildyn.2007.10.002" target="_blank" rel="noopener"> https://doi.org/10.1016/j.soildyn.2007.10.002</a>
Oruç, B., Sarıkaya, A., & Küçük, Y. E. (2016). Medeniyet University pedestrian overpass detailed design calculation report, Prepared for the Ministry of Transport, Maritime Affairs and Communications.
Osmancikli, G., Bayraktar, A., Turker, T., Ucak, S., & Mosallam, A. (2015). Finite element model calibration of precast structures using ambient vibrations. Construction and Building Materials, 93, 10-21. <a href= "https://doi.org/10.1016/j.conbuildmat.2015.05.096" target="_blank" rel="noopener"> https://doi.org/10.1016/j.conbuildmat.2015.05.096</a>
Paeglite, I., Smirnovs, J., & Paeglitis, A. (2017). Dynamic behavior of pre-stressed slab bridges. Procedia Engineering, 172, 831-838. <a href= "https://doi.org/10.1016/j.proeng.2017.02.132" target="_blank" rel="noopener"> https://doi.org/10.1016/j.proeng.2017.02.132</a>
Peeters, B., & De Roeck, G. (2001). Stochastic system identification for operational modal analysis: a review. Journal of Dynamic Systems, Measurement, and Control, 123(12), 659-667. <a href= "https://doi.org/10.1115/1.1410370" target="_blank" rel="noopener"> https://doi.org/10.1115/1.1410370</a>
Sanayei, M., Khaloo, A., Gül, M., & Çatbas, N. F. (2015). Automated finite element model updating of a scale bridge model using measured static and modal test data. Engineering Structures, 102, 66-79. <a href= "https://doi.org/10.1016/j.engstruct.2015.07.029" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2015.07.029</a>
Soyöz, S., Taciroğlu, E., Orakçal, K., Nigbor, R., Skolnik, D., Luş, H., & Şafak, E. (2013). Ambient and forced vibration testing of a reinforced concrete building before and after its seismic retrofitting. Journal of Structural Engineering, 139, 1741-1752. <a href= "https://doi.org/10.1061/(ASCE)ST.1943-541X.0000568" target="_blank" rel="noopener"> https://doi.org/10.1061/(ASCE)ST.1943-541X.0000568</a>
Ubertini, F., Gentile, C., & Materazzi, A. L. (2013). Automated modal dentification in operational conditions and its application to bridges. Engineering Structures, 46, 264-278. <a href= "https://doi.org/10.1016/j.engstruct.2012.07.031" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2012.07.031</a>
Zàrate, B. A., & Caicedo, J. M. (2008). Finite element model updating: multiple alternatives. Engineering Structures, 30, 3724-2430. <a href= "https://doi.org/10.1016/j.engstruct.2008.06.012" target="_blank" rel="noopener"> https://doi.org/10.1016/j.engstruct.2008.06.012</a>
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2018-03-27
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This work is licensed under a Creative Commons Attribution 4.0 International License.