Seismic Performance of Pile-Supported Wharf Structures considering Soil-Structure Interaction in Liquefied Soil

Shafieezadeh, Abdollah; DesRoches, Reginald; Rix, Glenn J.; Werner, Stuart D.

doi:10.1193/1.4000008

Cited by 46 publications

(14 citation statements)

References 27 publications

(47 reference statements)

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“…Amirabadi et al [10] developed an optimal probabilistic seismic demand model for pilesupported wharves with batter piles and considered that probabilistic seismic demand models were critical components of performance-based seismic design and seismic risk assessment. Shafieezadeh et al [11] investigated the modal properties and vulnerability of such existing pilesupported marginal wharves using advanced structural and soil modeling procedures to perform 2D nonlinear plane strain seismic analyses using the time histories of ground displacement and excess pore water pressures within the underlying soil embankment. Shafieezadeh et al [12] also investigated the 3D nonlinear response of a typical pilesupported container wharf structure in liquefiable embankment soils.…”

Section: Introductionmentioning

confidence: 99%

Seismic Dynamic Damage Characteristics of Vertical and Batter Pile - supported Wharf Structure Systems

Li¹,

Song²,

Cui³

2015

JESTR

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Considering a typical steel pipe pile-supported wharf as the research object, finite element analytical models of batter and vertical pile structures were established under the same construction site, service, and geological conditions to investigate the seismic dynamic damage characteristics of vertical and batter pile-supported wharf structures. By the numerical simulation and the nonlinear time history response analysis of structure system and the moment-axial force relation curve, we analyzed the dynamic damage characteristics of the two different structures of batter and vertical piles under different seismic ground motions to provide reasonable basis and reference for designing and selecting a pile-supported wharf structure. Results showed that the axial force of batter piles was dominant in the batter pile structure and that batter piles could effectively bear and share seismic load. Under the seismic ground motion with peak ground acceleration (PGA) of 350 Gal and in consideration of the factors of the design requirement of horizontal displacement, the seismic performance of the batter pile structure was better than that of the vertical pile structure. Under the seismic ground motion with a PGA of 1000 Gal, plastic failure occurred in two different structures. The contrastive analysis of the development of plastic damage and the absorption and dissipation for seismic energy indicated that the seismic performance of the vertical pile structure was better than that of the batter pile structure.

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Section: Introductionmentioning

confidence: 99%

Seismic Dynamic Damage Characteristics of Vertical and Batter Pile - supported Wharf Structure Systems

Li¹,

Song²,

Cui³

2015

JESTR

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“…Also, even typical lateral loads for piles that are severely degraded may become a danger to serviceability. A soil profile was built for this study out of uniform clay materials derived from a wharf pile soil profile (Shafieezadeh, et al 2012) that begins at a depth of about 6 [m] from the top of the pile. The materials used are changed from the original work for this study.…”

Section: Structures Congress 2015mentioning

confidence: 99%

Time-Dependent Probabilistic Capacity Assessment of a Prestressed Concrete Pile in a Spatially Varying Corrosive Marine Environment Using Detailed Finite Element Methods

Schmuhl¹,

Shafieezadeh²

2015

Structures Congress 2015

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This study aims to provide a comprehensive method for modeling and analyzing prestressed concrete substructure elements, specifically wharf piles, subjected to chloride-induced corrosion. Fully understanding this process is crucial to capturing uncertainties in structural response and providing accurate predictions of its time-dependent degradation mechanisms. A probabilistic modeling framework and detailed finite element model and analysis are employed to explore these effects. Results indicate a high degree of uncertainty captured by the spatial and timedependent modeling techniques in addition to stress corrosion cracking and brittle failures modes observed in the finite element analysis.

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“…The force–deformation behavior of the connection is calibrated with the result of a full scale test conducted by Lehman et al . More details about the numerical model of the connection and the calibration procedure can be found in .…”

Section: Application To Seismic Loss Assessment Of Wharf Structuresmentioning

confidence: 99%

A probabilistic framework for correlated seismic downtime and repair cost estimation of geo‐structures

Shafieezadeh

DesRoches

Rix

et al. 2013

Earthq Engng Struct Dyn

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SUMMARY An important component of probabilistic risk assessment methods is the development of models to quantify the direct consequences of damage to geo‐structural components for a given intensity of the hazard. This paper presents a general probabilistic framework for correlated repair cost and downtime estimation of geo‐structures exposed to seismic hazards. The framework uses as input the results of nonlinear time‐history analysis of geo‐structures for the set of earthquake records that are representative of the seismic hazard models for the region of interest. The repair cost and downtime are estimated for individual earthquakes probabilistically considering the uncertainties associated with damage states. In addition, the formulation of the repair cost and downtime accounts for the reduction in the repair requirements as the number of damaged components in the given damage state increases. An analytical linear and two bilinear regression models are proposed for conditional correlated seismic repair cost and downtime estimation of geo‐structures given the intensity measure. The proposed framework is demonstrated by developing seismic repair models of a typical pile‐supported wharf structure on the west coast of the United States. The presented framework is general and can be applied to other types of geo‐structures and hazards and can include other decision variables such as loss of life as well. Copyright © 2013 John Wiley & Sons, Ltd.

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Seismic Performance of Pile-Supported Wharf Structures considering Soil-Structure Interaction in Liquefied Soil

Cited by 46 publications

References 27 publications

Seismic Dynamic Damage Characteristics of Vertical and Batter Pile - supported Wharf Structure Systems

Seismic Dynamic Damage Characteristics of Vertical and Batter Pile - supported Wharf Structure Systems

Time-Dependent Probabilistic Capacity Assessment of a Prestressed Concrete Pile in a Spatially Varying Corrosive Marine Environment Using Detailed Finite Element Methods

A probabilistic framework for correlated seismic downtime and repair cost estimation of geo‐structures

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