Effect of soil and substructure properties on live-load distribution in integral abutment bridges

Date

2008-09-01

Author

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

331
views

0
downloads

This study is aimed at investigating the effect of soil-structure interaction and substructure properties at the abutments on the distribution of live-load effects in integral abutment bridge (IAB) components. For this purpose, numerous 3D and corresponding 2D structural models of typical IABs are built and analyzed under AASHTO live-load. In the analyses, the effect of various geotechnical and substructure properties such as foundation soil stiffness, considering and neglecting the effect of backfill, backfill compaction level, considering and neglecting the effect of wingwalls, abutment height and thickness, as well as number, size, and orientation of the piles are considered. The results from the 2D and 3D analyses are then used to calculate the live-load distribution factors (LLDFs) for the components of IABs as a function of the above-mentioned properties. The analyses results revealed that soil-structure interaction has a significant effect on the LLDFs for the abutment, but negligible effects on those for the girders and piles. Furthermore, the abutment height is observed to have a considerable effect on the LLDFs calculated for the abutment and pile moments. Moreover, the wingwalls are observed to have only a negligible effect on the LLDFs for all the IAB components.

Subject Keywords

Civil and Structural Engineering, Building and Construction

URI

https://hdl.handle.net/11511/49252

Journal

JOURNAL OF BRIDGE ENGINEERING

DOI

https://doi.org/10.1061/(asce)1084-0702(2008)13:5(527)

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Effect of soil-bridge interaction on the magnitude of internal forces in integral abutment bridge components due to live load effects Dicleli, Murat (Elsevier BV, 2010-01-01) In this study, the effect of soil-bridge interaction on the magnitude of the internal forces in integral abutment bridge (IAB) components due to live load effects is studied. For this purpose, structural models of typical IABs are built by including and excluding the effect of backfill and foundation soil. Analyses of the models are then conducted under an AASHTO live load. In the analyses, the effects of the backfill and foundation soil on the magnitude of the internal forces in IAB components are studied ...
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...
Distribution of live load effects in integral bridge abutments and piles Dicleli, Murat (2010-07-15) In this study, live load distribution equations (LLDEs) for integral bridge (IB) substructures are developed. For this purpose, numerous 3-D and corresponding 2-D structural models of typical IBs are built and analyzed under AASHTO live load. In the analyses, the effect of various superstructure and substructure properties such as span length, girder spacing, girder stiffness, abutment height, pile size, pile spacing and foundation soil stiffness are considered. The results from the 2-D and 3-D analyses are...
Effect of Shear Wall Area to Floor Area Ratio on the Seismic Behavior of Reinforced Concrete Buildings Burak Bakır, Burcu (American Society of Civil Engineers (ASCE), 2013-11-01) An analytical study is performed to evaluate the effect of shear wall area to floor area ratio on the seismic behavior of midrise RC structures. For this purpose, 24 midrise building models that have five and eight stories and shear wall ratios ranging between 0.51 and 2.17% in both directions are generated. Then, the behavior of these building models under earthquake loading is examined by carrying out nonlinear time history analyses. In the analyses, seven different ground motion records are applied to th...
Integral Abutment-Backfill Behavior on Sand Soil-Pushover Analysis Approach Dicleli, Murat (American Society of Civil Engineers (ASCE), 2005-05-01) This paper presents a study on the behavior of the abutment-backfill system under positive thermal variation in integral bridges built on sand. A structural model of a typical integral bridge is built, considering the nonlinear behavior of the piles and soil-bridge interaction effects. Static pushover analyses of the bridge are conducted to study the effect of various geometric, structural, and geotechnical parameters on the performance of the abutment-backfill system under positive thermal variations. The ...

Citation Formats

M. Dicleli, “Effect of soil and substructure properties on live-load distribution in integral abutment bridges,” JOURNAL OF BRIDGE ENGINEERING, pp. 527–539, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49252.