HR: 0800h
AN: T41B-1303    [Abstracts]
TI: Updating Newmark Displacement Empirical Formula with the Chi-Chi Earthquake Strong-Motion Data.
AU: * Hsieh, S
EM: hsieh.1016@yahoo.com
AF: INSTITUTE OF APPLIED GEOLOGY, NATIONAL CENTRAL UNIVERSITY, No.300, Jung-da Road, Chung-li, Tao-yuan, 320 Taiwan
AU: Lee, C
EM: ct@gis.geo.ncu.edu.tw
AF: INSTITUTE OF APPLIED GEOLOGY, NATIONAL CENTRAL UNIVERSITY, No.300, Jung-da Road, Chung-li, Tao-yuan, 320 Taiwan
AU: Lee, C
EM: ct@gis.geo.ncu.edu.tw
AF: INSTITUTE OF GEOPHYSICS, NATIONAL CENTRAL UNIVERSITY, No.300, Jung-da Road, Chung-li, Tao-yuan, 320 Taiwan
AU: Lin, P
EM: person@gis.geo.ncu.edu.tw
AF: INSTITUTE OF GEOPHYSICS, NATIONAL CENTRAL UNIVERSITY, No.300, Jung-da Road, Chung-li, Tao-yuan, 320 Taiwan
AB: The cumulative displacement is an effective approach to measure the stability of a natural slope under the shocking of earthquake. The Newmark­Ęs method helps to calculate the co-seismic relative cumulative displacement of a sliding block by integrating the acceleration time history data of a strong-motion record. It may also be estimated by applying an empirical equation, like the Jibson­Ęs formula. This research employs strong motion data of the Chi-Chi main shock and five larger aftershocks and other worldwide data to find out the relationship among critical acceleration (A_c)} Arias Intensity (I_a), and Newmark displacement (D_n). The result revealed that the form of the Jibson­Ęs formula should be modified. A new relationship for estimation of D_n from I_a and A_c is proposed and the improvement is discussed.
DE: 1810 Debris flow and landslides
SC: Tectonophysics [T]
MN: Fall Meeting 2005