Study on affecting factors and spectral parameters of long period ground motions

Dongsheng Du; Shuguang Wang; Weiqing Liu; Junhua Tang

Study on affecting factors and spectral parameters of long period ground motions

Dongsheng Du, Shuguang Wang, Weiqing Liu, Junhua Tang

School of Civil Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

According to the broadband digital records obtained from the Japanese National Research Institute for Earth Science and Disaster Prevention (NIED), the main factors of long-period ground motion with two spectral parameters, i. e. the average acceleration response spectral period (T_r) and the mean Fourier spectral period (T_m), were analyzed. With the calculation theory of double inflection point source about T_m, the relationship between the ratio of peak acceleration and velocity (x_a/v) and T_r was studied. The results show that the site conditions, propagation distance and earthquake magnitude are the main factors to the formation of long-period ground motion. T_r is suitable for the evaluation of long-period ground motion. T_r and x_a/v decay in an exponential function pattern. The fitting coefficients with three earthquake magnitudes of 6.1, 7.2 and 9.0 are provided.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Jianzhu Jiegou Xuebao/Journal of Building Structures
Volume	35
Issue number	SUPPL.1
State	Published - Mar 2014

Keywords

Digital recording of earthquake records
Law of attenuation
Long period ground motion
Seismic coefficient
Spectral parameters

Cite this

@article{f873299b58f44dbb9f0aa9c184e1f971,

title = "Study on affecting factors and spectral parameters of long period ground motions",

abstract = "According to the broadband digital records obtained from the Japanese National Research Institute for Earth Science and Disaster Prevention (NIED), the main factors of long-period ground motion with two spectral parameters, i. e. the average acceleration response spectral period (Tr) and the mean Fourier spectral period (Tm), were analyzed. With the calculation theory of double inflection point source about Tm, the relationship between the ratio of peak acceleration and velocity (xa/v) and Tr was studied. The results show that the site conditions, propagation distance and earthquake magnitude are the main factors to the formation of long-period ground motion. Tr is suitable for the evaluation of long-period ground motion. Tr and xa/v decay in an exponential function pattern. The fitting coefficients with three earthquake magnitudes of 6.1, 7.2 and 9.0 are provided.",

keywords = "Digital recording of earthquake records, Law of attenuation, Long period ground motion, Seismic coefficient, Spectral parameters",

author = "Dongsheng Du and Shuguang Wang and Weiqing Liu and Junhua Tang",

year = "2014",

month = mar,

language = "英语",

volume = "35",

pages = "1--8",

journal = "Jianzhu Jiegou Xuebao/Journal of Building Structures",

issn = "1000-6869",

publisher = "Science China Press",

number = "SUPPL.1",

}

TY - JOUR

T1 - Study on affecting factors and spectral parameters of long period ground motions

AU - Du, Dongsheng

AU - Wang, Shuguang

AU - Liu, Weiqing

AU - Tang, Junhua

PY - 2014/3

Y1 - 2014/3

N2 - According to the broadband digital records obtained from the Japanese National Research Institute for Earth Science and Disaster Prevention (NIED), the main factors of long-period ground motion with two spectral parameters, i. e. the average acceleration response spectral period (Tr) and the mean Fourier spectral period (Tm), were analyzed. With the calculation theory of double inflection point source about Tm, the relationship between the ratio of peak acceleration and velocity (xa/v) and Tr was studied. The results show that the site conditions, propagation distance and earthquake magnitude are the main factors to the formation of long-period ground motion. Tr is suitable for the evaluation of long-period ground motion. Tr and xa/v decay in an exponential function pattern. The fitting coefficients with three earthquake magnitudes of 6.1, 7.2 and 9.0 are provided.

AB - According to the broadband digital records obtained from the Japanese National Research Institute for Earth Science and Disaster Prevention (NIED), the main factors of long-period ground motion with two spectral parameters, i. e. the average acceleration response spectral period (Tr) and the mean Fourier spectral period (Tm), were analyzed. With the calculation theory of double inflection point source about Tm, the relationship between the ratio of peak acceleration and velocity (xa/v) and Tr was studied. The results show that the site conditions, propagation distance and earthquake magnitude are the main factors to the formation of long-period ground motion. Tr is suitable for the evaluation of long-period ground motion. Tr and xa/v decay in an exponential function pattern. The fitting coefficients with three earthquake magnitudes of 6.1, 7.2 and 9.0 are provided.

KW - Digital recording of earthquake records

KW - Law of attenuation

KW - Long period ground motion

KW - Seismic coefficient

KW - Spectral parameters

UR - http://www.scopus.com/inward/record.url?scp=84899047292&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84899047292

SN - 1000-6869

VL - 35

SP - 1

EP - 8

JO - Jianzhu Jiegou Xuebao/Journal of Building Structures

JF - Jianzhu Jiegou Xuebao/Journal of Building Structures

IS - SUPPL.1

ER -

Study on affecting factors and spectral parameters of long period ground motions

Abstract

Keywords

Other files and links

Fingerprint

Cite this