scholarly journals A RESTORING FORCE CHARATERISTICS MODEL OF A H-SHAPED STEEL COLUMN DUE TO BI-DIRECTIONAL HORIZONTAL FORCES AND ITS APPLICATION TO EARTHQUAKE RESPONSE ANALYSIS : Inelastic Response of H-Shaped Columns to Bi-Directional Horizontal Earthquake Ground Motions (III)

1984 ◽  
Vol 337 (0) ◽  
pp. 53-64
Author(s):  
HIDETAKA TANIGUCHI ◽  
KOUICHI TAKANASHI ◽  
HISASHI TANAKA
Keyword(s):  
Ground Motions ◽  
Earthquake Response ◽  
Response Analysis ◽  
Restoring Force ◽  
Inelastic Response ◽  
Earthquake Ground Motions ◽  
Steel Column ◽  
Earthquake Response Analysis

An Improved Fault-to-Site Analysis Tool Towards Fully HPC-Enhanced Physics-Based Urban Area Response Estimation

2016 ◽  
Vol 10 (05) ◽  
pp. 1640018 ◽  
Author(s):  
Pher Errol B. Quinay ◽  
Tsuyoshi Ichimura
Keyword(s):  
Urban Area ◽  
Ground Motions ◽  
Earthquake Response ◽  
Response Analysis ◽  
Analysis Tool ◽  
Good Balance ◽  
Site Analysis ◽  
Step Procedure ◽  
Earthquake Response Analysis ◽  
Area Response

This paper describes the improvement to a fault-to-site analysis tool for use in a fully HPC-enhanced physics-based urban earthquake response analysis. We developed a three-step procedure, involving coarse and refined partitioning for the preprocessing stage, that achieves good balance in computational load and FE nodes used in communications. An end-to-end approach to computing in K computer was also implemented. The results of strong- and weak-scaling tests validate the capability of the tool for application to dynamic analysis involving billions of unknowns. In application to reproduction of observed ground motions, improvements in solution in comparison with previously conducted validations were obtained. The tool was also used to generate synthetic ground motions for analyzing the response of thousands of buildings in an urban area due to a scenario earthquake.

Three-Dimensional Seismic Response Analysis of Buried Continuous or Jointed Pipelines

1987 ◽  
Vol 109 (1) ◽  
pp. 80-87 ◽  
Author(s):  
S. Takada ◽  
K. Tanabe
Keyword(s):  
Seismic Behavior ◽  
Ground Motions ◽  
Three Dimensional ◽  
Response Analysis ◽  
Ground Deformations ◽  
Pipe Systems ◽  
Experimental Values ◽  
Earthquake Response Analysis ◽  
Nonlinear Behaviors ◽  
Torsional Properties

This paper presents a three-dimensional quasi-static analysis of continuous or jointed pipelines. Transfer Matrix Method was applied to the analysis providing for nonlinear behaviors of joints and soil frictions. An improved computer program ERAUL-II (Earthquake Response Analysis of Underground Lifelines-II) was developed for numerical computations. First, numerical response analyses were carried out for three-dimensional pipe systems with steel or cast iron pipe materials subject to large ground deformations or seismic ground motions. Analytical results show that torsional properties of pipes are also important factors for seismic behavior, which cannot be known by two-dimensional analyses. Second, experimental test data of three-dimensional steel pipe systems were simulated by using the ERAUL-II program. Simulated results agree well with the experimental values.

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