Seismic behavior of an inverted T-shape flexible retaining wall via dynamic centrifuge tests

Jo, Seong-Bae; Ha, Jeong‐Gon; Yoo, Mintaek; Choo, Yun Wook; Kim, Dong-Soo

doi:10.1007/s10518-013-9558-9

Cited by 36 publications

(28 citation statements)

References 14 publications

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“…The peak friction angle of 43°was obtained from the triaxial test, and the inter-friction angle between the rubble mound and the wall was about two-third of the peak friction angle in a direct shear test (Jo et al, 2014). The soil in the backfill was prepared using pluviation at a relative density of 80%.…”

Section: Model Groundmentioning

confidence: 99%

“…The limitations of the pseudo-static method based on M-O were assessed by comparing the differences between pseudo-static and true dynamic behaviours in centrifuge tests by many researchers (Nakamura, 2006;Al Atik & Sitar, 2010;Brandenberg et al, 2015;Hushmand et al, 2016;Wagner & Sitar, 2016;Jo et al, 2014Jo et al, , 2017. In this regard, the definition of k h could be further improved in future studies.…”

Section: Evaluation Of Two Major Considerations In Defining K Hmentioning

confidence: 99%

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Assessment of horizontal seismic coefficient for gravity quay walls by centrifuge tests

Lee

Jo³

et al. 2017

Géotechnique Letters

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In the simplified analysis of seismic design of gravity quay walls based on the pseudo-static approach, selection of an appropriate horizontal seismic coefficient (k h ) is important for computing the equivalent pseudo-static inertial force. However, there is no unified standard for defining k h . There are conflicts among the existing k h definitions regarding whether it considers (a) the effect of wall height on maximum horizontal acceleration (MHA) used in the determination of k h or (b) the application of correction factor for k h according to seismic performance grade. This paper evaluates the relevance of these conflicts by initially reviewing the k h definitions in the existing codes and guidelines for port structures and then by performing a series of dynamic centrifuge tests on caisson gravity quay walls of different wall heights (5, 10 and 15 m). A review of the existing codes and guidelines has shown that the correction factor for k h should be specified according to the seismic performance grade for the economical design of quay walls. On the other hand, based on the centrifuge tests, it was found that the MHA used in k h calculation and the correction factor for considering seismic performance grade should reflect the effect of wall height.

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Section: Model Groundmentioning

confidence: 99%

Section: Evaluation Of Two Major Considerations In Defining K Hmentioning

confidence: 99%

Assessment of horizontal seismic coefficient for gravity quay walls by centrifuge tests

Lee

Jo³

et al. 2017

Géotechnique Letters

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“…The appropriate scaling factors for the dynamic events are specified in [13,19], and actual earthquake conditions could be simulated in the centrifuge model. Two input earthquake signals were used for the shaking events, including the Hachinohe earthquake motion recorded at Tokachi Oki, Japan (16 May 1968, Magnitude 7.9), which has long-period components; and the Ofunato earthquake motion recorded at Miyagi-Ken Oki, Japan (12 June 1978, Magnitude 7.4), which has short-period components (Figure 3 [24,25]). Two input earthquake signals were used for the shaking events, including the Hachinohe earthquake motion recorded at Tokachi Oki, Japan (16 May 1968, Magnitude 7.9), which has long-period components; and the Ofunato earthquake motion recorded at Miyagi-Ken Oki, Japan (12 June 1978, Magnitude 7.4), which has short-period components (Figure 3 [24,25]).…”

Section: Excitation Of Dynamic Motionsmentioning

confidence: 99%

Investigation of the dynamic behaviour of a storage tank with different foundation types focusing on the soil‐foundation‐structure interactions using centrifuge model tests

Park

Kwon

et al. 2017

Earthq Engng Struct Dyn

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Summary This paper proposes a dynamic centrifuge model test method for the accurate simulation of the behaviours of a liquid storage tank with different types of foundations during earthquakes. The method can be used to determine the actual stress conditions of a prototype storage‐tank structure. It was used in the present study to investigate the soil‐foundation‐structure interactions of a simplified storage tank under two different earthquake motions, which were simulated using a shaking table installed in a centrifuge basket. Three different types of foundations were considered, namely, a shallow foundation, a slab on the surface of the ground connected to piles and a slab with disconnected piles. The test results were organised to compare the ground surface and foundation motions, the slab of foundation and top of structure motions and the horizontal and vertical motions of the slab, respectively. These were used to establish the complex dynamic behaviours of tank models with different foundations. The effects of soil–foundation–structure interaction with three foundation conditions and two different earthquake motions are focused and some important factors, that should be considered for future designs are also discussed in this research. Copyright © 2017 John Wiley & Sons, Ltd.

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“…The detailed test procedure and results of the dynamic centrifuge test were comprehensively presented in Jo et al [3]. Thus, this paper only presents a brief description of the experimental model setup and test procedure.…”

Section: Dynamic Centrifuge Testmentioning

confidence: 99%

Numerical analysis of inverted T-type wall under seismic loading

Lee

Chae

Kim

et al. 2015

Computers and Geotechnics

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Seismic behavior of an inverted T-shape flexible retaining wall via dynamic centrifuge tests

Cited by 36 publications

References 14 publications

Assessment of horizontal seismic coefficient for gravity quay walls by centrifuge tests

Assessment of horizontal seismic coefficient for gravity quay walls by centrifuge tests

Investigation of the dynamic behaviour of a storage tank with different foundation types focusing on the soil‐foundation‐structure interactions using centrifuge model tests

Numerical analysis of inverted T-type wall under seismic loading

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