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Moorak Son,Edward J. Cording 대한토목학회 2005 KSCE JOURNAL OF CIVIL ENGINEERING Vol.9 No.4
A building damage criterion, which is using angular distortion and lateral strain of a building, is developed. The angular distortion/lateral strain criterion for building damage due to excavation is evaluated in terms of the state of strain at a point, or the average strainacross a unit of the building. The idea of the damage estimate criterion develops from the concept that a structure is deformed by thecombination of angular distortion and lateral strain, and the maximum strain on the structure can be decided by a principal strainformed by both the angular distortion and the lateral strain. The developed criterion is applicable to a wide range of building length/height ratios and building longitudinal stiffness/shear stiffness ratios.