Finite Element Analysis of the Behaviour of Pile Supported Integral Abutment

Sakhare, Akshay

Finite Element Analysis of the Behaviour of Pile Supported Integral Abutment

Sakhare, Akshay

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Publication Type:: Thesis
Issue Date:: 2024

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Field	Value	Language
dc.contributor.author	Sakhare, Akshay
dc.date.accessioned	2024-10-04T01:18:15Z
dc.date.available	2024-10-04T01:18:15Z
dc.date.issued	2024
dc.identifier.uri	http://hdl.handle.net/10453/181180
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_US.UTF-8
dc.description.abstract	Integral Abutment Bridges (IABs) are jointless single or multiple-span bridges having their superstructure cast integrally with their substructure. They have become popular worldwide because of their well-established advantages over conventional bridges. Despite several advantages, a few challenges associated with the performance of the IABs that must be addressed systematically. These include nonlinear deformation of abutment due to ambient temperature variations, creep, and shrinkage effects resulting from a complex interaction between the abutment, soil, and the pile. Performance is highly sensitive to external loads, geometry, backfill soil, and soil-structure interaction, and differential movement near the bridge approach. The behaviour of the pile-supported Integral Abutment Bridge (IAB) and its passive capacity are evaluated using a nonlinear finite element (FE) analysis adopting hypoplastic sand constitutive model for the backfill soil under static, cyclic, and thermal loadings. Dynamic behaviour of the transition zone of the integral abutment railway bridge consisting of approach slab, is studied under static coupled bogie loadings and moving train loads using the FE analysis. Seismic vulnerability assessment of the pile-supported IAB is performed and the probabilistic seismic demand models and fragility curves are developed using the incremental dynamic analysis.	en_US.UTF-8
dc.format	Thesis (PhD)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/181180/1/thesis.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	© 2024 Akshay Sakhare
dc.rights	au.edu.uts.lib/cph
dc.title	Finite Element Analysis of the Behaviour of Pile Supported Integral Abutment	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

Integral Abutment Bridges (IABs) are jointless single or multiple-span bridges having their superstructure cast integrally with their substructure. They have become popular worldwide because of their well-established advantages over conventional bridges. Despite several advantages, a few challenges associated with the performance of the IABs that must be addressed systematically. These include nonlinear deformation of abutment due to ambient temperature variations, creep, and shrinkage effects resulting from a complex interaction between the abutment, soil, and the pile. Performance is highly sensitive to external loads, geometry, backfill soil, and soil-structure interaction, and differential movement near the bridge approach. The behaviour of the pile-supported Integral Abutment Bridge (IAB) and its passive capacity are evaluated using a nonlinear finite element (FE) analysis adopting hypoplastic sand constitutive model for the backfill soil under static, cyclic, and thermal loadings. Dynamic behaviour of the transition zone of the integral abutment railway bridge consisting of approach slab, is studied under static coupled bogie loadings and moving train loads using the FE analysis. Seismic vulnerability assessment of the pile-supported IAB is performed and the probabilistic seismic demand models and fragility curves are developed using the incremental dynamic analysis.

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http://hdl.handle.net/10453/181180