Effect of dynamic soil-bridge interaction modeling assumptions on the calculated seismic response of integral bridges

Erhan S., DİCLELİ M.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, cilt.66, ss.42-55, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.solidyn.2014.06.033
  • Dergi Adı: SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.42-55
  • Anahtar Kelimeler: Seismic response integral bridge, Soil-bridge interaction, Modeling, STEEL H-PILES, PERFORMANCE
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, the effect of soil-structure modeling assumptions and simplifications on the seismic analyses results of integral bridges (lBs) is investigated. For this purpose, five structural models of lBs are built in decreasing levels of complexity starting from a nonlinear structural model including close numerical simulation of the behavior of the foundation and backfill soil and gradually simplifying the model to a level where the effect of backfill and foundation soil is totally excluded. Nonlinear time history analyses of the modeled lBs are then conducted using a set of ground motions with various intensities representing small, medium and large intensity earthquakes. The analyses results are then used to assess the effect of modeling complexity level on the calculated seismic response of IBs. The nonlinear soil-bridge interaction modeling assumptions are found to have considerable effects on the calculated seismic response of IBs under medium and large intensity earthquakes.(C) 2014 Elsevier Ltd. All rights reserved.