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

Date

2014-11-01

Author

Erhan, Semih
Dicleli, Murat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

170
views

0
downloads

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.

Subject Keywords

Seismic response integral bridge, Soil-bridge interaction, Modeling

URI

https://hdl.handle.net/11511/42848

Journal

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

DOI

https://doi.org/10.1016/j.solidyn.2014.06.033

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Effect of superstructure-abutment continuity on live load distribution in integral abutment bridge girders Dicleli, Murat (2010-03-30) In this study, the effect of superstructure-abutment continuity on the distribution of live load effects among the girders of integral abutment bridges (IABs) is investigated. For this purpose, two and three dimensional finite element models of several single-span, symmetrical integral abutment and simply supported (jointed) bridges (SSBs) are built and analyzed. In the analyses, the effect of various superstructure properties such as span length, number of design lanes, girder size and spacing as well as s...
Comparative assessment of the seismic performance of integral and conventional bridges with respect to the differences at the abutments Erhan, Semih; Dicleli, Murat (2015-02-01) In this study, the seismic performance of integral and conventional bridges is compared particularly considering the differences at their abutments. For this purpose, three existing integral bridges with one, two and three spans are selected and then designed as conventional jointed bridges. The structural models of the integral and conventional bridges are then built including nonlinear structural and dynamic soil-bridge interaction effects. Next, nonlinear time history analyses of the bridge models are co...
Effects of Soil Bridge Interaction and Abutment Deck Continuity on the Live Load Distribution Factors in Integral Bridge Components Erhan, Semih; Dicleli, Murat (2009-10-01) In this study, the effects of soil bridge interaction and abutment deck continuity on the live load distribution in integral bridge components are studied. For this purpose, 2-D and 3-D structural models of typical integral and conventional bridges having various structural, geometric and geotechnical properties are built. The analyses of the models are then conducted under AASHTO live load. The analyses results revealed that soil-bridge interaction has significant effects on the live load distribution in a...
Effect of Foundation Soil Stiffness on the Seismic Performance of Integral Bridges Dicleli, Murat (Informa UK Limited, 2011-05-01) In this study, the effect of foundation soil stiffness on the seismic performance of integral bridges (IBs) is investigated. For this purpose, nonlinear structural models of a two-span TB with four different foundation soil stiffness types (loose, medium, medium-dense and dense sands) are built. In the nonlinear structural models, nonlinear soil structure interaction including free-field effects is considered. Then, the nonlinear time history analyses of the TB models are conducted using a set of ground mot...
Effects of vertical excitation on seismic performance of highway bridges and hold-down device requirements Domaniç, Kemal Arman; Caner, Alp; Department of Civil Engineering (2008) Most bridge specifications ignore the contribution of vertical motion in earthquake analyses. However, vertical excitation can develop significant damage, especially at bearing locations as indeed was the case in the recent 1999 İzmit Earthquake. These observations, combined with recent developments in the same direction, supplied the motivation to investigate the effects of vertical component of strong ground motion on standard highway bridges in this study. Reliability checks of hold-down device requireme...

Citation Formats

S. Erhan and M. Dicleli, “Effect of dynamic soil-bridge interaction modeling assumptions on the calculated seismic response of integral bridges,” SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, pp. 42–55, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42848.