Seismic Displacement of a Geosynthetic-Reinforced Wall in the 1995 Hyogo-Ken Nambu Earthquake

Huang, Chun‐Che; Wang, Wei Cheng

doi:10.3208/sandf.45.5_1

Cited by 21 publications

(3 citation statements)

References 20 publications

(25 reference statements)

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“…The basic equations to evaluate Fd and Fr can be expressed as Eqs. (4) to (6). The value of threshold acceleration against the sliding athres is evaluated as the acceleration when the values of F d and F r become equal to each other (i.e., the factor of safety against sliding becomes unity).…”

Section: Evaluation Of Threshold Acceleration and Moment (Steps 1 And 3)mentioning

confidence: 99%

“…Because the concept of Newmark's method (NM method) is simple, there have been many studies to adopt the NM method for the evaluation of the earthquake-induced residual displacement of GRS walls (Matsuo et al, 1998;Cai and Barthurst, 1996;Huang and Wang, 2005). However, it should be noted that the sliding or rotating mass and its subsoil are assumed to be rigid in the NM method.…”

Section: Introductionmentioning

confidence: 99%

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Simplified Procedure to Evaluate Earthquake-Induced Residual Displacement of Geosynthetic Reinforced Soil Retaining Walls

Nakajima

Koseki

Watanabe

et al. 2010

Soils and Foundations

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Based on a series of shaking table model tests, it was found that the eŠects of 1) subsoil and backˆll deformation, 2) failure plane formation in backˆll, and 3) pullout resistance mobilized by the reinforcements on the seismic behaviors of the geosynthetic reinforced soil retaining walls (GRS walls) were signiˆcant. These eŠects cannot be taken into account in the conventional pseudo-static based limit equilibrium analyses or Newmark's rigid sliding block analogy, which are usually adopted as the seismic design procedure. Therefore, this study attempts to develop a simpliˆed procedure to evaluate earthquake-induced residual displacement of GRS walls by re‰ecting the knowledge on the seismic behaviors of GRS walls obtained from the shaking table model tests.In the proposed method, 1) the deformation characteristics of subsoil and backˆll are modeled based on the model test results and 2) the eŠect of failure plane formation is considered by using residual soil strength after the failure plane formation while the peak soil strength is used before the failure plane formation, and 3) the eŠect of the pullout resistance mobilized by the reinforcement is also introduced by evaluating the pullout resistance based on the results from the pullout tests of the reinforcements. By using the proposed method, simulations were performed on the shaking table model test results conducted under a wide variety of testing conditions and good agreements between the calculated and measured displacements were observed.

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Section: Evaluation Of Threshold Acceleration and Moment (Steps 1 And 3)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simplified Procedure to Evaluate Earthquake-Induced Residual Displacement of Geosynthetic Reinforced Soil Retaining Walls

Nakajima

Koseki

Watanabe

et al. 2010

Soils and Foundations

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show abstract

“…The Tatsuka et al [2], Tatsuka et al [3] results showed very satisfying behavior of these reinforced soil walls compared with walls without reinforcement while facing the earthquake; thus, these walls were developed and used increasingly. [4] Various modeling techniques such as concentrated mass modeling was used to obtain the natural frequency of civil structures such as building structures and fluid storage tanks (Chopra [5]). However, continues mass modeling is suggested to attain more accurate results while modeling structures such as retaining walls.…”

Section: Introductionmentioning

confidence: 99%

An analytical model for determining the effect of damping on 3D natural frequency of reinforced walls

Darvishpour¹,

Ghanbari²,

Hosseini³

et al. 2018

J. meas. eng.

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Abstract. Most of the proposed methods for obtaining the free vibration natural frequency of the retaining wall assume the behavior of the wall in the two-dimensional domain, and they are not able to express the three-dimensional behavior of these structures in a satisfying manner. Moreover, the effect of damping has not yet been considered in analytical study. In this paper, the plate theory and Galerkin method is employed to analyze the free vibration of a wall-reinforcement-soil system in the three dimensional domain and survey the effect of damping on the natural frequency of a retaining wall. So, the retaining wall is modeled as a clamped-free plate and the stiffness of the soil and reinforcements existing behind the wall are modeled as a set of springs and the damping effect of the system is modeled by a set of dampers located at the back of the Retaining wall and attached to it. The results of the proposed model are compared with both the results of the other researchers and the ones from finite element method (FEM). They are also compared with the results of a full-scale experiment and it shows a good agreement. The proposed method which uses the plate theory, also yields the free vibration natural frequencies of the wall's extensional modes with an acceptable accuracy. Finally, the effect of tensile and compressive behaviors of the soil and the reinforcements on the fundamental frequency of a reinforced retaining wall is studied.Keywords: reinforced retaining wall, reinforcement, 3D vibration, analytical method, damping ratio, mode shape.

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Predicting seismic permanent displacement of soil walls under surcharge based on limit analysis approach

Aminpour

Maleki

Ghanbari

2018

Earthq. Eng. Eng. Vib.

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Seismic Displacement of a Geosynthetic-Reinforced Wall in the 1995 Hyogo-Ken Nambu Earthquake

Cited by 21 publications

References 20 publications

Simplified Procedure to Evaluate Earthquake-Induced Residual Displacement of Geosynthetic Reinforced Soil Retaining Walls

Simplified Procedure to Evaluate Earthquake-Induced Residual Displacement of Geosynthetic Reinforced Soil Retaining Walls

An analytical model for determining the effect of damping on 3D natural frequency of reinforced walls

Predicting seismic permanent displacement of soil walls under surcharge based on limit analysis approach

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