The dynamic test of simple span precast prestressed concrete bridge with elastomeric bearing support
Penulis:Â Rastandi, J.I.;Â Putra, Irwan Ade;Â Orientilize, M.
Informasi
JurnalIOP Conference Series: Earth and Environmental Science
PenerbitIOP Publishing Ltd, IOP Conference Series: Earth and Environmental Science 622 (1), 012012, 2021
Volume & EdisiVol. 622,Edisi 1
Halaman -
Tahun Publikasi2021
ISSN17551307
Jenis SumberScopus
Sitasi
Scopus: 1
Google Scholar: 1
PubMed: 1
Abstrak
The dynamic test of an elevated freeway bridge in Surabaya has been conducted. Eccentric mass shaker succeeded to apply an excitement to the bridge and hence the dynamic parameters such as the mode shape, the natural frequency and the damping ratio were obtained. The two main mode shapes from the test were the first vertical mode and the first longitudinal mode. The average damping ratio attained is within the range of damping ratio of prestresses concrete where the average is 2.12% whereas the range is between 2-3%. The test results are closely represented by a 3D FE model using SAP2000 without modelling the whole foundation. The deviation of the natural frequency compared to the test results is 8.50%. The elastomeric bearing effectively reduces the acceleration from upper to the bottom structure by 54.62% and 60.22% obtained from two measurements. © 2021 Institute of Physics Publishing. All rights reserved.
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