Elastic wave propagation in a 3-D unbounded random heterogeneous medium coupled with a bounded medium. Application to seismic soil-structure interaction (SSSI)

2002 ◽  
Vol 54 (4) ◽  
pp. 607-630 ◽  
Author(s):  
E. Savin ◽  
D. Clouteau
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Soil Structure ◽  
Heterogeneous Medium ◽  
Elastic Wave Propagation ◽  
Soil Structure Interaction ◽  
Structure Interaction

Large-Scale Seismic Response Analysis of a Super-High-Rise-Building Fully Considering the Soil–Structure Interaction Using a High-Fidelity 3D Solid Element Model

2016 ◽  
Vol 10 (05) ◽  
pp. 1640014 ◽  
Author(s):  
Tomoshi Miyamura ◽  
Seizo Tanaka ◽  
Muneo Hori
Keyword(s):  
Wave Propagation ◽  
Soil Structure ◽  
Large Scale ◽  
Soil Structure Interaction ◽  
Response Analysis ◽  
High Fidelity ◽  
Seismic Response Analysis ◽  
Structure Interaction ◽  
High Rise ◽  
Propagation Analysis

In the present study, a large-scale seismic response analysis of a super-high-rise steel frame considering the soil–structure interaction is conducted. A high-fidelity mesh of a 31-story super-high-rise steel frame and the ground underneath it, which is made completely of hexahedral elements, is generated. The boundary conditions that are consistent with the solution of the one-dimensional (1D) wave propagation analysis are imposed on the side and bottom surfaces of the ground. The waves are assumed to propagate in the vertical direction. The 1D wave propagation analysis is conducted under the excitation of the JR Takatori record of the 1995 Hyogoken-Nanbu earthquake. The parallel large-scale analysis is performed using the K computer, which is one of the fastest supercomputers in the world. The results of the models with and without the ground are compared, which reveals that the results obtained by these two models are very similar because the ground is assumed be sufficiently hard in the present study.

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