Integral abutment bridges : investigation of seismic soil-structure interaction effects by shaking table testing

Fiorentino, Gabriele (avtor), De Luca, Flavia (avtor), Isaković, Tatjana (avtor)

In recent years there has been renewed interest on integral abutment bridges (IABs), mainly due to their low construction and maintenance cost. Owing to the monolithic connection between deck and abutments, there is strong soil structure interaction between the bridge and the backfill under both thermal action and earthquake shaking. Although some of the regions where IABs are adopted qualify as highly seismic, there is limited knowledge as to their dynamic behaviour and vulnerability under strong ground shaking. To develop a better understanding on the seismic behaviour of IABs, an extensive experimental campaign involving over 75 shaking table tests and 4800 time histories of recorded data, was carried out at EQUALS Laboratory, University of Bristol, under the auspices of EU sponsored SERA project (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe). The tests were conducted on a 5 m long shear stack mounted on a 3 m 3 m 6 DOF earthquake simulator, focusing on interaction effects between a scaled bridge model, abutments, foundation piles and backfill soil. The study aims at (a) developing new scaling procedures for physical modelling of IABs, (b) investigating experimentally the potential benefits of adding compressible inclusions (CIs) between the abutment and the backfill and (c) exploring the influence of different types of connection between the abutment and the pile foundation. Results indicate that the CI reduces the accelerations on the bridge deck and the settlements in the backfill, while disconnecting piles from the cap decreases bending near the pile head.

• Jezik: Angleški jezik
• Ključne besede: earthquake engineering, structural engineering, compressible inclusion, integral abutment bridges, pile-to-cap connection, shaking table testing, soil structure interaction
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: Str. 1517–1538
• Številčenje: Vol. 50, iss. 6
• PID: 20.500.12556/RUL-125098
• UDK: 624.042.7
• ISSN pri članku: 0098-8847
• DOI: 10.1002/eqe.3409
• COBISS.SI-ID: 43549699
• Datum objave v RUL: 04.03.2021

FIORENTINO, Gabriele, DE LUCA, Flavia in ISAKOVIĆ, Tatjana, 2021, Integral abutment bridges : investigation of seismic soil-structure interaction effects by shaking table testing. Earthquake engineering & structural dynamics [na spletu]. 2021. Vol. 50, no. 6. [Dostopano 6 julij 2025]. DOI 10.1002/eqe.3409. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=125098

Gradivo je del revije

• Naslov: Earthquake engineering & structural dynamics
• Skrajšan naslov: Earthquake eng. struct. dyn.
• Založnik: Wiley
• ISSN: 0098-8847
• COBISS.SI-ID: 25358592

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: potresno inženirstvo, gradbene konstrukcije