Stručni rad

https://doi.org/10.32762/zr.20.1.9

Operational Modal Analysis of Overpass Malonji

Ivana Štimac Grandić orcid.org/0000-0003-3643-7848 ; Građevinski fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska
Tomislav Franković ; Građevinski fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska
Paulo Šćulac ; Građevinski fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska
Toni Komadina ; Građevinski fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska

Sažetak

This paper presents the results of an on-site dynamic testing of the pedestrian overpass Malonji using operational modal analysis for obtaining structural modal parameters. The measured modal parameters were compared to the modal parameters calculated on the numerical model of the overpass. It is shown that this type of dynamic testing and data processing can provide a very good match between measured and calculated frequencies. A more accurate determination of modal shapes derived from measured acceleration requires: (i) improvement in the ModalVIEW geometry model, (ii) using a greater number or different positions of accelerometers, (iii) accelerometers with better measuring accuracy.

Ključne riječi

pedestrian overpass; dynamic testing; OMA; ModalVIEW

Hrčak ID:

201819

URI

https://hrcak.srce.hr/201819

Datum izdavanja:

19.6.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.234 *