Original scientific paper

https://doi.org/10.17559/TV-20140909173504

The estimation of seismic performances of reinforced concrete girder bridges using nonlinear dynamic analysis

Andrija Rašeta orcid.org/0000-0002-4535-1379 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Republic of Serbia
Đorđe Lađinović orcid.org/0000-0002-3806-3221 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Republic of Serbia
Aleksandra Radujković orcid.org/0000-0003-4863-4486 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Republic of Serbia

Abstract

The paper applies nonlinear dynamic analysis to estimate seismic performances of reinforced concrete girder bridges. In all analysed variations, the structure of the beam implies the continual girder with four fields (35 m + 50 m + 50 m + 35 m) hinged to the pier tops and the abutments. The piers are completely fixed to the ground with the lengths of 7 m, 14 m and 21 m; hence, 18 diverse combinations of pier lengths have been analysed. Geometric nonlinearity is included via the P–Δ effect, while the material nonlinearity is included into the analyses using the fibre models of plastic hinges. The estimation of seismic performances has been calculated on the basis of the demanded local ductility and the local ductile capacity of the critical cross-sections in the piers of all bridge analysed variations. Artificially (synthetically) generated and recorded earthquake accelerograms have been utilized for nonlinear dynamic analyses.

Keywords

nonlinear dynamic analysis; RC girder bridges; seismic performances

Hrčak ID:

179860

URI

https://hrcak.srce.hr/179860

Publication date:

14.4.2017.

Article data in other languages: croatian

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