Three-Dimensional Seismic Response of Humboldt Bay Bridge-Foundation-Ground System
- 1 July 2008
- journal article
- research article
- Published by American Society of Civil Engineers (ASCE) in Journal of Structural Engineering
- Vol. 134 (7), 1165-1176
- https://doi.org/10.1061/(asce)0733-9445(2008)134:7(1165)
Abstract
Soil-structure interaction may play a major role in the seismic response of a bridge structure. Specifically, soil layers of low stiffness and strength may result in permanent displacement of the abutments and foundations, thus imposing important kinematic conditions to the bridge structure. A study to illustrate such phenomena is undertaken based on three-dimensional nonlinear dynamic finite-element (FE) modeling and analysis (for a specific bridge configuration under a given seismic excitation). A bridge-foundation-ground model is developed based on the structural configuration and local soil conditions of the Humboldt Bay Middle Channel Bridge. The FE model and nonlinear solution strategy are built in the open-source software platform OpenSees of the Pacific Earthquake Engineering Research Center. Based on the simulation results, the overall system seismic response behavior is examined, as well as local deformations/stresses at selected critical locations. It is shown that permanent ground deformation may induce settlement and longitudinal/transversal displacements of the abutments and deep foundations. The relatively massive approach ramps may also contribute to this simulated damage condition, which imposes large stresses on the bridge foundations, supporting piers, and superstructure.Keywords
This publication has 20 references indexed in Scilit:
- Study of Soil Layering Effects on Lateral Loading Behavior of PilesJournal of Geotechnical and Geoenvironmental Engineering, 2005
- Dynamic FE analysis of South Memnon Colossus including 3D soil–foundation–structure interactionComputers & Structures, 2004
- Three-Dimensional Analyses of Wave Barriers for Reduction of Train-Induced VibrationsJournal of Geotechnical and Geoenvironmental Engineering, 2004
- Influence of soil–foundation–structure interaction on seismic response of the I-880 viaductEngineering Structures, 2004
- Domain Reduction Method for Three-Dimensional Earthquake Modeling in Localized Regions, Part I: TheoryBulletin of the Seismological Society of America, 2003
- Domain Reduction Method for Three-Dimensional Earthquake Modeling in Localized Regions, Part II: Verification and ApplicationsBulletin of the Seismological Society of America, 2003
- Back Analysis Technique for Slope Stabilization Works of Embankment Landslide Due to Foundation InstabilitySoils and Foundations, 1998
- A Comprehensive Constitutive Equation for Granular MaterialsSoils and Foundations, 1996
- A parallel row-oriented sparse solution method for finite element structural analysisInternational Journal for Numerical Methods in Engineering, 1993
- An implementation of a generalized sparse/profile finite element solution methodComputers & Structures, 1991