Seismic retrofitting of highway bridges in Illinois using friction pendulum seismic isolation bearings and modeling procedures

Dicleli M., Mansour M.

ENGINEERING STRUCTURES, cilt.25, sa.9, ss.1139-1156, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 9
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0141-0296(03)00062-2
  • Dergi Adı: ENGINEERING STRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1139-1156
  • Anahtar Kelimeler: bridge, friction pendulum bearing, seismic isolation, soil-structure interaction, nonlinear analysis, seismic retrofitting, cost, SOIL-STRUCTURE INTERACTION
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

In this paper, the economical and structural efficiency of friction pendulum bearings (FPB) for retrofitting typical seismically vulnerable bridges in the State of Illinois is studied. For this purpose, a bridge was carefully selected by the Illinois Department of Transportation (IDOT) to represent typical seismically vulnerable bridges commonly used in the State of Illinois. A comprehensive structural model of the bridge was first constructed for seismic analysis. An iterative multi-mode response spectrum (MMRS) analysis of the bridge was then conducted to account for the nonlinear behavior of the bridge components and soil-bridge interaction. The calculated seismic demands were compared with the estimated capacities of the bridge components to determine those that need to be retrofitted. It was found that the bearings, wingwalls and pier foundations of the considered typical bridge need to be retrofitted.