We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ground Motion Intensity Measures for Liquefaction Hazard Evaluation.
- Authors
Kramer, Steven L.; Mitchell, Robert A.
- Abstract
The requirements of performance-based earthquake engineering place increasing importance on the optimal characterization of earthquake ground motions. With respect to liquefaction hazard evaluation, ground motions have historically been characterized by a combination of peak acceleration and earthquake magnitude, and more recently by Arias intensity. This paper introduces a new ground motion intensity measure, CAV 5, and shows that excess pore pressure generation in potentially liquefiable soils is considerably more closely related to CAV 5 than to other intensity measures, including peak acceleration and Arias intensity. CAV 5 is shown to be an efficient, sufficient, and predictable intensity measure for rock motions used as input to liquefaction hazard evaluations. An attenuation relationship for CAV 5 is presented and used in an example that illustrates the benefits of scaling bedrock motions to a particular value of CAV 5, rather than to the historical intensity measures, for performance-based evaluation of liquefaction hazards.
- Publication
Earthquake Spectra, 2006, Vol 22, Issue 2, p413
- ISSN
8755-2930
- Publication type
Article
- DOI
10.1193/1.2194970