Fast Simulation of Attenuation Relations of Ground Motion Parameters and Seismic Intensity Map in Shandong and Adjacent Areas

2021 ◽  
Author(s):  
Rui Zhao ◽  
Jianchang Zheng ◽  
Huawei Cui ◽  
Guojiao Huang
Keyword(s):  
Ground Motion ◽  
Seismic Intensity ◽  
Fast Simulation ◽  
Attenuation Relations ◽  
Ground Motion Parameters ◽  
Intensity Map ◽  
Motion Parameters

scholarly journals An attempt to model the relationship between MMI attenuation and engineering ground-motion parameters using artificial neural networks and genetic algorithms

2010 ◽  
Vol 10 (12) ◽  
pp. 2527-2537 ◽  
Author(s):  
G-A. Tselentis ◽  
L. Vladutu
Keyword(s):  
Neural Networks ◽  
Genetic Algorithms ◽  
Artificial Neural Networks ◽  
Ground Motion ◽  
Classification Problems ◽  
Attenuation Relations ◽  
Ground Motion Parameters ◽  
Ground Motion Attenuation ◽  
Motion Parameters ◽  
Artificial Neural

Abstract. Complex application domains involve difficult pattern classification problems. This paper introduces a model of MMI attenuation and its dependence on engineering ground motion parameters based on artificial neural networks (ANNs) and genetic algorithms (GAs). The ultimate goal of this investigation is to evaluate the target-region applicability of ground-motion attenuation relations developed for a host region based on training an ANN using the seismic patterns of the host region. This ANN learning is based on supervised learning using existing data from past earthquakes. The combination of these two learning procedures (that is, GA and ANN) allows us to introduce a new method for pattern recognition in the context of seismological applications. The performance of this new GA-ANN regression method has been evaluated using a Greek seismological database with satisfactory results.

Study on Ground Motion Parameters of Seismic Appraisal for Existing Structures Based on Residual Service Life

2011 ◽  
Vol 368-373 ◽  
pp. 2303-2308 ◽  
Author(s):  
Xiao Long Zhou ◽  
Ying Min Li
Keyword(s):  
Seismic Hazard ◽  
Ground Motion ◽  
Seismic Intensity ◽  
Residual Service Life ◽  
Seismic Action ◽  
Ground Motion Parameters ◽  
Existing Structures ◽  
Motion Parameters ◽  
Full Consideration ◽  
Residual Service

Research status of ground motion parameters of seismic appraisal for existing structures is analyzed. According to the theory of the probabilistic distribution of seismic intensity which fits Extreme Value Type Ш, the relation of multi-value seismic intensity to seismic basic intensity from different seismic hazard characteristic zone is studied in this paper. Under the principle of all the seismic actions of each fortification level have the same exceeding probability, the basic intensity for seismic assessment of buildings with different residual service lives is given to each zone. At last, after giving full consideration to the seismic hazard differences to different areas, the modification factors of seismic action of buildings at the three zones with different seismic hazard characters are given in this paper. At last, this paper provides a base for the structure designers to choose a rational seismic action during the seismic appraisal for existing structures.

Computational Research on Seismic Intensity Based on Ground Motion Parameters

2013 ◽  
Vol 838-841 ◽  
pp. 1595-1599
Author(s):  
Wei Li ◽  
Shan You Li ◽  
Liang Li ◽  
Jing Long Han
Keyword(s):  
Ground Motion ◽  
Evaluation Method ◽  
Empirical Relationship ◽  
Time History ◽  
Seismic Intensity ◽  
Computational Method ◽  
Emergency Relief ◽  
Ground Motion Parameters ◽  
Motion Parameters ◽  
The Government

After an earthquake event, the spatial distribution of seismic intensity of the event and extremely destructed area could be quickly evaluated by means of the empirical relationship between ground-motion parameters and seismic intensity, which has been proposed for years. This can provide a basis for the government to carry out emergency relief and reasonable distribution of relief supplies. In this paper, the computational methods of instrumental seismic intensity used at home and abroad are briefly introduced. By analyzing the advantages of the methods in the USA and Japan, a relatively simple computational method of seismic intensity is proposed. Firstly, the acceleration time history (Aall) and velocity time history (Vall) of the complete vibration are synthetized by the filtered three-direction acceleration and velocity time histories, and substituted in the empirical formulation. Then, the seismic intensity can be computed by the sorting method. After that, this method is compared with the intensity scale evaluation method and fuzzy algorithm by using the strong motion parameters of Wenchuan earthquake. The results show that the method proposed in this paper is better than the two methods and has certain practical values.

An Improved Method for Estimating the Seismic Intensity Based on Grey System Theory

2011 ◽  
Vol 103 ◽  
pp. 531-535
Author(s):  
Jie Tong ◽  
Ji Hua Fu ◽  
Zhong Yu Wang
Keyword(s):  
System Theory ◽  
Ground Motion ◽  
Seismic Intensity ◽  
Grey System Theory ◽  
Improved Method ◽  
Grey System ◽  
Ground Motion Parameters ◽  
Motion Parameters ◽  
The Government ◽  
Short Time

When a big earthquake happens, the reliable estimation of the earthquake damage within a short time is very important for the government to allocate the rescue personnel and supplies. A new method to estimate the seismic intensity rapidly based on the grey system theory is proposed in this paper. The seismic intensity is closely related to the ground motion parameters, which indicates it can be obtained simultaneously by knowing the ground motion parameters. Through the preliminary theory and experiment analysis, the method could be used to estimate the seismic intensity accurately with less calculation and strong real time characteristics.

Comparison of Manual and Automated Ground Motion Processing for Small-to-Moderate-Magnitude Earthquakes in Japan

2017 ◽  
Vol 33 (3) ◽  
pp. 875-894 ◽  
Author(s):  
Tadahiro Kishida ◽  
Danilo Di Giacinto ◽  
Giuseppe Iaccarino
Keyword(s):  
Time Series ◽  
Ground Motion ◽  
Earthquake Engineering ◽  
Corner Frequency ◽  
Motion Processing ◽  
Ground Motion Parameters ◽  
Acceleration Time ◽  
Motion Parameters ◽  
Filter Noise ◽  
Moderate Magnitude

Numerous time series for small-to-moderate-magnitude (SMM) earthquakes have been recorded in many regions. A uniformly-processed ground-motion database is essential in the development of regional ground-motion models. An automated processing protocol is useful in developing the database for these earthquakes especially when the number of recordings is substantial. This study compares a manual and an automated ground-motion processing methods using SMM earthquakes. The manual method was developed by the Pacific Earthquake Engineering Research Center to build the database of time series and associated ground-motion parameters. The automated protocol was developed to build a database of pseudo-spectral acceleration for the Kiban-Kyoshin network recordings. Two significant differences were observed when the two methods were applied to identical acceleration time series. First, the two methods differed in the criteria for the acceptance or rejection of the time series in the database. Second, they differed in the high-pass corner frequency used to filter noise from the acceleration time series. The influences of these differences were investigated on ground-motion parameters to elucidate the quality of ground-motion database for SMM earthquakes.

Sign in / Sign up

Export Citation Format

Share Document