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http://dx.doi.org/10.7843/kgs.2007.23.12.117

EFFECT OF COMPLIANCE ON NEWMARK-TYPE RIGID BLOCK DEFORMATION ANALYSIS  

Kim, Jin-Man (Dept. of Civil Engrg., School of Civil and Environmental Engrg., Pusan National University)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.12, 2007 , pp. 117-124 More about this Journal
Abstract
This study investigates the effect of spatial averaging and compliance taken account of in the analysis of earthquake-induced permanent deformation of slopes. At present, the rigid block analysis originally proposed by Newmark is widely used in the deformation analysis, mainly because of its computational efficiency. This type of approach, however, adopts the so-called decoupled approach, in which seismic response and deformation analyses are carried out separately. Original Newmark block analysis assumes the potential sliding mass to be noncompliant, and has been criticized to be potentially unconservative. This paper reviews the impact of the noncompliance assumption of the potential sliding mass in the Newmark-type analysis. The gross effects of earthquake shaking on the potential sliding mass are estimated by spatial averaging method and analyzed in frequency domain. The results indicate that there is a simple criterion that can be used to determine the level of compliance of the potential sliding mass.
Keywords
Compliance; Newmark-Type Analysis; Rigid Block Analysis; Seismic Slope Deformation;
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