Numerical investigation of seismic performance of bridge piers with spread footings considering pier plastic hinging and footing rocking, sliding, and settlement

Chiou, Jiunn-Shyang; Hu, Wun Sian; Lee, Tzu Chieh

doi:10.1016/j.engstruct.2021.112821

Cited by 4 publications

(12 citation statements)

References 28 publications

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“…In the present study, the pushover model considers the plastic flexural deformation behavior of the pier and the rocking and sliding behaviors of the footing. Figure 1 presents the proposed pushover model, which is based on the dynamic model proposed by Chiou et al 28 The simulation models for the plastic hinging behavior of the pier and the rocking behavior of the footing have been verified in other studies. 19,25 The components of the pushover model, which include the pier and footing, are briefly described in the following sections.…”

Section: Pushover Analysis Modelmentioning

confidence: 96%

“…Figure 1 presents the proposed pushover model, which is based on the dynamic model proposed by Chiou et al 28 The simulation models for the plastic hinging behavior of the pier and the rocking behavior of the footing have been verified in other studies. 19,25 The components of the pushover model, which include the pier and footing, are briefly described in the following sections. For the details of the model, please refer to Ref.…”

Section: Pushover Analysis Modelmentioning

confidence: 96%

“…To develop this static approach, we use the dynamic numerical model proposed by Chiou et al 25,28 as a basis. The modeling of the pier and foundation in the pushover model is based on the setting adopted in the dynamic model.…”

Section: Applications Of Nonlinear Static and Cyclic Pushover Analysismentioning

confidence: 99%

“…𝐴 D_pier = 𝐴 D_elastic pier + 𝐴 D_plastic pier (7) where A D_elastic pier is the dissipation energy of the pier in the elastic state and A D_plastic pier is the hysteretic energy due to plastic hinging of the pier. (a) A D_elastic pier According to the dynamic model proposed by Chiou et al, 19 the damping ratio ξ e for the elastic system is set at the lowest predominant frequency (the reference frequency) ω ref of the undamped system under a given base motion. Therefore, the dissipation energy of the pier in the elastic state can be represented by the following equation:…”

Section: Dissipation Energy Of Piermentioning

confidence: 99%

“…model to simulate the coupled effects of shear, moment, and axial loadings on the bearing behavior of a footing. [15][16][17][18] However, these spring models are unable to appropriately simulate the hysteretic rocking footing response 19 or the footing settlement. Anastasopoulos and Kontoroupi 20 carried out numerical analyses to construct a settlement increment-footing rotation relationship, which can predict the time history of the footing settlement based on the footing rotation from the uncoupled spring model.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Development of a pseudostatic method for seismic performance evaluation of rocking bridge foundations

Chiou,

Lee,

Natalin

2023

Earthq Engng Struct Dyn

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Pseudostatic analysis can be an efficient approach to evaluating the dynamic response of structures for a preliminary design. In this paper, we present a pseudostatic method based on a pushover analysis to assess the seismic performance of bridge piers supported by rocking‐governed shallow foundations. The method has two stages. In the first stage, the capacity spectrum method (CSM) is applied to evaluate the maximum acceleration and displacement response of the bridge system. To have an appropriate system damping ratio in the CSM, we propose a method to consider various earthquake energy dissipation mechanisms for the pier and foundation. In the second stage, the footing settlement is evaluated based on the maximum footing rotation; an incrementally cyclic pushover analysis with a fixed footing rotation increment is performed to estimate the footing settlement. Examples are presented to demonstrate the applicability of the proposed method and the results of the proposed method are compared with the dynamic analysis results. Compared with the conventional CSM, the proposed method improves the estimation of system damping and can estimate the settlement after earthquakes.

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Section: Pushover Analysis Modelmentioning

confidence: 96%

Section: Pushover Analysis Modelmentioning

confidence: 96%

Section: Applications Of Nonlinear Static and Cyclic Pushover Analysismentioning

confidence: 99%

Section: Dissipation Energy Of Piermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Development of a pseudostatic method for seismic performance evaluation of rocking bridge foundations

Chiou,

Lee,

Natalin

2023

Earthq Engng Struct Dyn

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Uniaxial hysteretic spring models for static and dynamic analyses of self-centering rocking shallow foundations

Xiong

Zhong

2022

Engineering Structures

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State-of-the-art and annual progress of bridge engineering in 2021

Zhao

Zheng

Wang

et al. 2022

ABEN

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Bridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2021 from 12 aspects. The content consists of four parts in 12 aspects. The first part is about the bridge structure and analysis theories, including concrete bridge and high-performance materials, steel bridges, composite girders and cable-supported bridge analysis theories. The second part is about the bridge disaster prevention and mitigation, including bridge seismic resistance, vibration and noise reduction of rail transit bridges, monitoring and detection of steel bridge, hydrodynamics of coastal bridges, and durability of the concrete bridge under the complex environmental conditions. The last part is concerning the bridge emerging technologies, including bridge assessment and reinforcement, the technology in bridge structure test and intelligent construction and safe operation and maintenance of bridges.

show abstract

Numerical investigation of seismic performance of bridge piers with spread footings considering pier plastic hinging and footing rocking, sliding, and settlement

Cited by 4 publications

References 28 publications

Development of a pseudostatic method for seismic performance evaluation of rocking bridge foundations

Development of a pseudostatic method for seismic performance evaluation of rocking bridge foundations

Uniaxial hysteretic spring models for static and dynamic analyses of self-centering rocking shallow foundations

State-of-the-art and annual progress of bridge engineering in 2021

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