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Published: Građevinar 74 (2022) 12
Paper type: Scientific research paper
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Upgrading of isolated bridges with uniform gapped HS devices: Seismic tests

Jelena Ristic, Danilo Ristic, Viktor Hristovski

Abstract

The conducted extensive experimental seismic analysis showed seismic performances of a constructed large-scale bridge model representing system of upgraded isolated bridge with uniform gapped horizontal S-shaped devices (GHS System). The GHS system constituted double spherical rolling isolating bearings (DSRIB) and created original uniform horizontal S-shaped multi-gap (HS-MG) energy dissipation devices. With conducted laboratory cyclic tests, stable all-directional hysteretic responses were confirmed for both the DSRIB and HS-MG devices. In the dynamic seismic shaking table testing, the GHS bridge system showed favourable seismic response performances contributing to efficient bridge system protection. The established new GHS system exhibited large potential for qualitative improvement of seismic safety of isolated bridges exposed to very strong earthquakes.

Keywords
bridge, seismic isolation, energy dissipation, bridge safety, seismic shaking table

HOW TO CITE THIS ARTICLE:

Ristic, J., Ristic, D., Hristovski, V.: Upgrading of isolated bridges with uniform gapped HS devices: Seismic tests, GRAĐEVINAR, 74 (2022) 12, pp. 1047-1058, doi: https://doi.org/10.14256/JCE.3580.2022

OR:

Ristic, J., Ristic, D., Hristovski, V. (2022). Upgrading of isolated bridges with uniform gapped HS devices: Seismic tests, GRAĐEVINAR, 74 (12), 1047-1058, doi: https://doi.org/10.14256/JCE.3580.2022

LICENCE:

Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
3580 A1 WEB
Jelena Ristic
International Balkan University (IBU)
Faculty of Engineering
Department of Civil Engineering
2274 A3 WEB
Danilo Ristic
SS Cyril and Methodius University in Skopje, Republic North Macedonia
Institute of Earthquake Engineering and Engineering Seismology (IZIIS)
viktor hristovski WEB
Viktor Hristovski
Ss. Cyril and Methodius University, Skopje
Institute of Earthquake Engineering and Engineering Seismology (IZIIS)