NDLI: Time derivative of earthquake acceleration

Content Provider	Springer Nature Link
Author	Tong, Mai Wang, Guo Quan Lee, George C.
Copyright Year	2005
Abstract	Unlike acceleration, velocity, and displacement, the time derivative of acceleration (TDoA) of ground motion has not been extensively studied. In this paper, the basic characteristics of TDoA are evaluated based on records from the 1999 Chi-Chi, earthquake (Mw 7.6) and one of its aftershocks (Mw 6.2). It is found that the maximum TDoA at a free-field station was over 31,200 cm/s3 (31.8 g/s); and the duration of “strong” TDoA, between the first and the last time points exceeding 2,000 cm/s3 (2 g/s), was almost one minute near the epicenter area. Since ground TDoA sensors are not commonly available, the time series are calculated by direct numerical differentiation of acceleration time series. Relative error analysis shows that the error is non-transitive and total error is within 4%. The density function of TDoA amplitude, frequency content and spatial distribution of peak ground jerk (PGJ) are evaluated. The study also includes examination of some TDoA responses from a seven-story building and comparison of ground TDoA with the limit TDoA used in the transportation industry for ride comfort. Some potential impacts of TDoA on humans have also been reviewed.
Starting Page	1
Ending Page	16
Page Count	16
File Format	PDF
ISSN	16713664
Journal	Earthquake Engineering and Engineering Vibration
Volume Number	4
Issue Number	1
e-ISSN	1993503X
Language	English
Publisher	Institute of Engineering Mechanics, China Earthquake Administration
Publisher Date	2005-01-01
Publisher Place	Harbin
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	time derivation of acceleration peak ground jerk acceleration time series earthquake ground motion earthquake effect on human activities Geotechnical Engineering Civil Engineering Vibration, Dynamical Systems, Control
Content Type	Text
Resource Type	Article
Subject	Building and Construction Geophysics Mechanical Engineering Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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