Tehnički vjesnik, Vol. 24 No. 2, 2017.
Izvorni znanstveni članak
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
Sažetak
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.
Ključne riječi
nonlinear dynamic analysis; RC girder bridges; seismic performances
Hrčak ID:
179860
URI
Datum izdavanja:
14.4.2017.
Posjeta: 1.566 *