Skip to the main content

Original scientific paper

https://doi.org/10.17559/TV-20140603143241

System identification of R/C girder bridges based on field measurements and numerical simulations

Damir Zenunovic ; University of Tuzla, Faculty of Mining, Geology and Civil Engineering, Univerzitetska 2, 75000 Tuzla, Bosnia and Herzegovina
Mirsad Topalovic ; University of Tuzla, Faculty of Mining, Geology and Civil Engineering, Univerzitetska 2, 75000 Tuzla, Bosnia and Herzegovina
Radomir Folic ; University of Novi Sad, Faculty of Technical Sciences, Trg D. Obradovica 6, 21000 Novi Sad, Serbia


Full text: croatian pdf 1.736 Kb

page 667-675

downloads: 568

cite

Full text: english pdf 1.736 Kb

page 667-675

downloads: 664

cite


Abstract

An overview of research performed in the framework of the NATO Project SfP 983828 is given in the paper. The scope of the research was to identify the parameters affecting the dynamic response of an existing R/C girder bridge, based on ambient vibration measurements and numerical simulations using finite element models (FEM). For this purpose, the bridge across the river Bosnia near Sarajevo and the soil surrounding the bridge were instrumented. Ambient vibration tests and geophysical investigations were performed. The results are studied and a refined three-dimensional (3D) FEM is developed that takes into consideration the soil-structure interaction and superstructure-substructure interaction. The FEM’s with designed parameters and parameters obtained by measurements were developed. The developed FEM models are comparatively assessed and FEM model with congruence between the measured and computationally predicted dynamic characteristics of the structure was defined. The results of the analysis show that the adequate determination of the pier, deck and bearings stiffness is the key parameter for reliable system identification.

Keywords

ambient vibration; concrete bridge; modal analysis; numerical simulation; soil investigation

Hrčak ID:

139751

URI

https://hrcak.srce.hr/139751

Publication date:

15.6.2015.

Article data in other languages: croatian

Visits: 2.484 *