Basic Study on Development and Validation of Seismic Response Analysis Using High-Fidelity Model for Large-Scale Reinforced Concrete Structures

A parallel finite element method (FEM) based on high-fidelity models for solving diverse earthquake engineering problems is presented. Its key feature is a parallel solver that is tuned to solve large-scale wave equations. Tensorial material constitutive relations of concrete and soil and sophisticated nonlinear joint elements are implemented to broaden the applicability of the parallel FEM. The performance of the proposed parallel FEM is demonstrated for three examples; namely, seismic response, liquefaction, and surface earthquake fault analyses. A high-fidelity model was constructed for each analysis, and the numerical results were validated against observed data. The performance of the proposed parallel FEM approach was evaluated in terms of the resolution of the simulated results.Ensemble computing based on approximately a hundred high-fidelity models is useful for cases where there are considerable uncertainties regarding the material properties.

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“…Therefore, we used

d t = 0.001

s and performed an explicit computation. As can be seen,

M

decrease by one‐third in response to using the implemented module 11 …”

Section: Implementation Of Tensorial Materials Propertiesmentioning

confidence: 88%

Development of a general‐purpose parallel finite element method for analyzing earthquake engineering problems

Motoyama

Sawada

Hotta

et al. 2021

Earthq Engng Struct Dyn

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“…An advantage of Equation 22instead of Equation 21is that c E (which plays a role of apparent stiffness) is always positive-definite. The work of implementing such reformulated constitutive equation for HPC-FEM was initiated by authors; see [62]. In the work, the non-linear analysis method of solving Equation 22, assuming that dσ * is negligibly small, is implemented.…”

Section: Treatment Of Tensorial Constitutive Relationmentioning

confidence: 99%

“…The time increment was set as dt = 0.005 s and the total number of time steps was 4416. For more information about the model, see [62]. In order to save the degrees of freedom, the authors employed a hybrid model o solid elements and structural elements.…”

Section: Example Of Usage Of Hpc For Numerical Analysis Of Ssimentioning

confidence: 99%

Review of Soil-Structure Interaction Based on Continuum Mechanics Theory and Use of High Performance Computing

2021

Self Cite

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Recent achievement of research on soil-structure interaction (SSI) is reviewed, with a main focus on the numerical analysis. The review is based on the continuum mechanics theory and the use of high-performance computing (HPC) and clarifies the characteristics of a wide range of treatment of SSI from a simplified model to a high fidelity model. Emphasized is that all the treatment can be regarded as the result of the mathematical approximations in solving a physical continuum mechanics problem of a soil-structure system. The use of HPC is inevitable if we need to obtain a solution of higher accuracy and finer resolution. An example of using HPC for the analysis of SSI is presented.

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3次元テンソル形式コンクリート構成則の2次元厚板要素への実装と検証

Hotta¹,

Suzuki²,

Hori³

2021

J. JSCE, Ser. A1

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Basic Study on Development and Validation of Seismic Response Analysis Using High-Fidelity Model for Large-Scale Reinforced Concrete Structures

Cited by 4 publications

References 2 publications

Development of a general‐purpose parallel finite element method for analyzing earthquake engineering problems

Development of a general‐purpose parallel finite element method for analyzing earthquake engineering problems

Review of Soil-Structure Interaction Based on Continuum Mechanics Theory and Use of High Performance Computing

3次元テンソル形式コンクリート構成則の2次元厚板要素への実装と検証

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