Upgrading of isolated bridges with space-bar energy-dissipation devices: Shaking table test

The results of the experimental research program realized on a bridge model constructed by using the seismically isolated system upgraded with space-bar devices (USI-SB) are presented in the paper. The installed adaptable system for seismic protection of bridges utilizes double spherical rolling seismic bearings (DSRSB) as seismic isolators, while the qualitative improvement of seismic performances is achieved through the use of novel adjustable multi-directional space-bar energy dissipation (SB-ED) devices. The experimental program consisted of quasi-static testing of isolation and energy dissipation devices under the cyclic loading and extensive shaking-table testing of a large-scale bridge model with installed USI-SB system. For both types of devices, a very stable all-directional response during cycling tests, as well as the favorable hysteretic behavior of the energy dissipation devices along the entire range of applied large displacements were registered. In the dynamic testing, the system showed high seismic response modification performances needed for the efficient protection, exhibiting its large potential in the qualitative improvement of seismic performances of isolated bridges.

• Record URL:
  https://doi.org/10.1177/13694332211013918
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13694332
• Supplemental Notes:
  • © The Author(s) 2021.
• Authors:
  • Ristic, Jelena
  • Brujic, Zoran
  • 0000-0003-1229-1573
  • Ristic, Danilo
  • Folic, Radomir
  • Boskovic, Milos
• Publication Date: 2021-10

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 2948-2965
• Serial:
  • Advances in Structural Engineering
  • Volume: 24
  • Issue Number: 13
  • Publisher: Sage Publications, Incorporated
  • ISSN: 1369-4332
  • Serial URL: http://journals.sagepub.com/home/ase

Subject/Index Terms

• TRT Terms: Bridge bearings; Bridges; Cyclic tests; Dissipation; Earthquake resistant design; Shaking table tests
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01776858
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 23 2021 3:21PM