Field vibration mitigation by honeycomb WIB for pile foundations of a high-speed train viaduct

Takemiya, Hirokazu

doi:10.1016/j.soildyn.2003.07.005

Cited by 87 publications

(30 citation statements)

References 10 publications

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“…Rather, it is more meaningful to take the 2-dimensional model to derive the useful results through the parametric studies. The first author has once compared the 2-dimensional and 3-dimensional responses in the range of linear behavior with respect to the cell configureation and confirmed a similar tendency between them in the range of important frequency range 13) . The comparison between the rigorous 3-dimensional model and the axisymmetric model proves that the latter resulted in a prediction of less response reduction to the former rigorous result 14) .…”

Section: C) Wib Measuresmentioning

confidence: 76%

Enhanced Seismic Design of a Pile Foundation by Cell-Type Wib

Takemiya

Chen

2006

JSCE JOURNAL OF STRUCTURAL AND EARTHQUAKE ENGINEERING

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These authors, focusing on the seismic responses of a pile foundation of traffic viaduct, propose an innovative enhancement method of a pile foundation by surrounding cells like Wave Impeding Barriers (WIB) for design. The present WIB consists of a multiple number of soil-cement columns, which are arranged in cells around piles. Since nonlinear dynamic soil-pile interaction is unavoidable in strong earthquake motions at soft site, such behavior is simulated approximately by a two-dimensional FEM-BEM in time domain. The performance design is pursued by parametric studies in view of pile internal forces. Partial damage of the WIB makes the pile safe with less nonlinear response. The high-damping assumption for the WIB fill-in keeps the WIB within safe margin.

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Section: C) Wib Measuresmentioning

confidence: 76%

Enhanced Seismic Design of a Pile Foundation by Cell-Type Wib

Takemiya

Chen

2006

JSCE JOURNAL OF STRUCTURAL AND EARTHQUAKE ENGINEERING

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“…Peplow [10] investigated the vibration isolation of WIB in the far-field of the surface of the ground due to a harmonic load acting over a strip by boundary element (BE) method. Takemiya [11] studied the response on the surface of the ground in the time domain with a Ricker wavelet type loading by using a boundary element model; their results showed that an effective width of the WIB should be chosen in relation to the wavelength of the given load. Based on a semianalytical BEM, the vibration effect of WIB in stratified half-space under the load of the travelling train is analyzed by Gao [12,13].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Isolation Ground Vibration by Graded Wave Impeding Block under a Moving Load

Zhou

2018

Journal of Engineering

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Combined with the coordinate transformation, the dynamic governing equations for elastic foundation under a moving load are established by using the reverberation ray matrix method, and the isolation effect of a graded wave impeding block is studied. The displacement and the stress are obtained in the time domain by using numerical inverse Fourier transformation. Via numerical examples, the effectiveness of vibration isolation of graded wave impeding block is compared to conventional single phase solid homogenous wave impeding block. The results show that compared with the single phase solid homogenous wave impeding block isolation system, the graded wave impeding block can effectively reduce the vibration amplitude and has more advantages and is effective under a moving load.

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“…More recently, a similar study was performed by Peplow and Finnveden [7], but this time based on a wave-based finite-element formulation. Takemiya [8] studied WIBs formed by piles placed in a honeycomb pattern around the foundation for a pylon supporting a railway bridge. The chosen WIB geometry was found advantageous in terms of mitigating waves in the considered frequency range.…”

Section: Introductionmentioning

confidence: 99%