11-19-2013, 11:33 PM
Principles and Practices of Seismic Isolated Buildings
Author: Amin Abrishambaf | Size: 7.8 MB | Format: PDF | Quality: Unspecified | Publisher: Eastern Mediterranean University July 2009 Gazimagusa, North Cyprus | Year: 2009 | pages: 216
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Earthquake design philosophy based on capacity, directs the following two unpleasant states:
1. The situation that continues to increase the elastic strength and stiffness; in fact this is not economical and also cause higher floor accelerations.
2. The situation that limits the elastic strength and increasing ductility by detailing; indeed this approach is the acceptance of non-repairable structural damages. Base isolation is a different approach than the mentioned ones. It is based on the concept, which reducing the seismic demands rather than increasing the earthquake resistance capacity of the structure. On the other hand, application of base isolators to the structure reduce elastic base shear by shifting period of the structure and provide better performing structure that will remain essentially elastic during large bearthquakes.
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