Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration

In order to grasp the nonlinear experimental errors of dynamic shear modulus ratio (DSMR) and damping ratio (DR), as well as the current level of resonant column testing, the GZ-1 resonant column instrument was used to study the probability statistical indicators, basic laws, and the impact of exper...

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Main Authors: Bo Li, Xiaofei Li
Format: Article
Language:English
Published: Ital Publication 2023-03-01
Series:HighTech and Innovation Journal
Subjects:
Online Access:https://hightechjournal.org/index.php/HIJ/article/view/366
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author Bo Li
Xiaofei Li
author_facet Bo Li
Xiaofei Li
author_sort Bo Li
collection DOAJ
description In order to grasp the nonlinear experimental errors of dynamic shear modulus ratio (DSMR) and damping ratio (DR), as well as the current level of resonant column testing, the GZ-1 resonant column instrument was used to study the probability statistical indicators, basic laws, and the impact of experimental errors on peak acceleration of DSMR and DR of silt under 8 typical shear strains. The results show that, firstly, the DSMR and DR of silt under different shear strains obey normal distributions. Secondly, there is no significant difference between the reference range of the standard deviation of the DSMR and DR of silt and the outer envelope line. This result indicates that the dispersion of experimental errors for the same person is very small. Thirdly, in medium to hard sites, the influence of experimental errors in DSMR and DR on peak acceleration can be ignored. And the impact of DR test errors on peak acceleration should not be ignored on soft ground with a probability range exceeding 95%. Overall, the testing accuracy of the testing personnel proved to generally meet the requirements, while in other special cases, it is necessary to increase the number of parallel tests and improve the testing technology. Otherwise, it will cause certain risks to the estimation of seismic input for engineering structures.   Doi: 10.28991/HIJ-2023-04-01-05 Full Text: PDF
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spelling doaj.art-b1ca8835515443249ec3780b3d9141202023-08-01T08:33:32ZengItal PublicationHighTech and Innovation Journal2723-95352023-03-0141657410.28991/HIJ-2023-04-01-05104Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground AccelerationBo Li0Xiaofei Li1College of Civil Engineering and Architecture, Binzhou University, Binzhou,College of Civil Engineering and Architecture, Binzhou University, Binzhou,In order to grasp the nonlinear experimental errors of dynamic shear modulus ratio (DSMR) and damping ratio (DR), as well as the current level of resonant column testing, the GZ-1 resonant column instrument was used to study the probability statistical indicators, basic laws, and the impact of experimental errors on peak acceleration of DSMR and DR of silt under 8 typical shear strains. The results show that, firstly, the DSMR and DR of silt under different shear strains obey normal distributions. Secondly, there is no significant difference between the reference range of the standard deviation of the DSMR and DR of silt and the outer envelope line. This result indicates that the dispersion of experimental errors for the same person is very small. Thirdly, in medium to hard sites, the influence of experimental errors in DSMR and DR on peak acceleration can be ignored. And the impact of DR test errors on peak acceleration should not be ignored on soft ground with a probability range exceeding 95%. Overall, the testing accuracy of the testing personnel proved to generally meet the requirements, while in other special cases, it is necessary to increase the number of parallel tests and improve the testing technology. Otherwise, it will cause certain risks to the estimation of seismic input for engineering structures.   Doi: 10.28991/HIJ-2023-04-01-05 Full Text: PDFhttps://hightechjournal.org/index.php/HIJ/article/view/366dynamic shear modulus ratiodamping ratiotest errorprobabilitypeak ground acceleration.
spellingShingle Bo Li
Xiaofei Li
Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
HighTech and Innovation Journal
dynamic shear modulus ratio
damping ratio
test error
probability
peak ground acceleration.
title Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
title_full Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
title_fullStr Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
title_full_unstemmed Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
title_short Study on the Test Error of Silt Dynamic Characteristic and Its Influence on the Peak Ground Acceleration
title_sort study on the test error of silt dynamic characteristic and its influence on the peak ground acceleration
topic dynamic shear modulus ratio
damping ratio
test error
probability
peak ground acceleration.
url https://hightechjournal.org/index.php/HIJ/article/view/366
work_keys_str_mv AT boli studyonthetesterrorofsiltdynamiccharacteristicanditsinfluenceonthepeakgroundacceleration
AT xiaofeili studyonthetesterrorofsiltdynamiccharacteristicanditsinfluenceonthepeakgroundacceleration