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Earthquake safety prediction of super-huge engineering actuated by computer

A deterministic and extra-large technology, applied in the computer field, can solve the problems of low seismic safety prediction accuracy, engineering application limitations, and low efficiency of solving large-scale engineering structures.

Inactive Publication Date: 2008-12-10
SHANGHAI JIAOTONG UNIV
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Problems solved by technology

Due to the strong closedness of software technology, its engineering application is greatly restricted
[0004] After searching the literature of the prior art, it was found that Shen Jianwen et al published the article "Introduction to the XQH1. The solution efficiency of large-scale engineering structures is low, and the accuracy of seismic safety prediction is not high

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  • Earthquake safety prediction of super-huge engineering actuated by computer
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  • Earthquake safety prediction of super-huge engineering actuated by computer

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specific Embodiment

[0064] In this embodiment, based on the Unix platform and MPI, the Fortran language is used to develop parallel computing software for the time history of man-made earthquakes, and parallel computing software for structural dynamic characteristics and earthquake responses. MPI (Message Passing Interface) is currently one of the most popular parallel programming environments in the world, especially a programming paradigm for scalable parallel computers and workstation networks with distributed storage. The main functions of the man-made earthquake time-history parallel computing software are: according to the seismic geological conditions of the project site and its surrounding areas, the geophysical field environment, the law of seismic activity, the modern terrain deformation and stress field, etc., the advanced seismic hazard probability According to the analysis method, according to the risk level required by the corresponding national standards, the time history of earthqu...

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Abstract

A computer-executed method for determining the earthquake safety prediction of a super-large project in the field of computer technology, using finite element pre-processing software to establish a finite element model, and inputting the parameters required for the time history of earthquake motion; the parameters are transferred to a supercomputer, and artificial earthquake motion is used to The time-history parallel simulation hybrid task assignment method is used to obtain the seismic excitation dynamic time history; the seismic excitation dynamic time history is returned to the finite element pre-processing software for constraint loading, and the task file of the finite element analysis software is obtained and submitted to the finite element analysis software to obtain The mathematical model, the mathematical model and the time step are transferred to the supercomputer, and the parallel processing method of transient response analysis and modal analysis or the parallel processing method of modal analysis is used for parallel calculation; the data is returned to the finite element analysis software for subsequent calculation; limited The meta-post-processing software reads in the calculation results and performs visual processing. The present invention is realized by means of software, which greatly saves manpower, material resources and financial resources for system implementation.

Description

technical field [0001] The invention relates to a method in the field of computer technology, in particular to a computer-executed method for determining the earthquake safety prediction of a super-large project. Background technique [0002] Seismic safety prediction refers to the use of advanced seismic hazard prediction methods on the basis of in-depth research on the seismic geological conditions, geophysical field environment, seismic activity law, modern terrain deformation and stress field of the specific construction site and its surrounding areas. According to the risk level required by the work, scientifically give the earthquake motion parameters (acceleration, design response spectrum, earthquake time history, etc.) data of. Seismic safety prediction is divided into two steps: the first step is to calculate the ground motion parameters; the second step is to calculate the ground motion parameters of the engineering structure. The three-dimensional finite elemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G01V1/28
Inventor 金先龙李渊印李治曹源张晓云
Owner SHANGHAI JIAOTONG UNIV
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