Motion Selection and Scaling for the Seismic Investigation of the Concrete Gravity Dams

Date

2016-09-23

Author

Bybordiani, Milad
Arıcı, Yalın

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With the advent of the time domain analyses, which are preferred over the demand prediction methods based on the response spectrum idea, the use of time histories for the seismic design and analysis of dams is becoming increasingly the state of the art. Determination of the ground motions that will be used in time history analysis is a crucial task since the results usually show a wide variability in the required quantity due to the stochastic nature of the applied earthquake record. In order to reduce this variability and predict the "true" demand related to the seismic hazard conditions of the site, the ground motions are usually subjected to some scaling procedures. A separate but equally important goal in this regard is to obtain the required demand with a small number of representative motions reducing the analysis workload. In this regard, the existing ground motion scaling techniques are evaluated in this study in a robust soil-structure-interaction [SSI] setting for determining the efficiency and accuracy of the scaling technique for predicting the target demands for concrete gravity dams. A large ensemble of ground motions were used on a range of systems with different canyon geometries in order to consider the effect of the SSI on the motion selection for concrete gravity dams. The required number of ground motions for consistent and efficient analyses of such systems was investigated.

URI

https://hdl.handle.net/11511/82501

Conference Name

Motion Selection and Scaling for the Seismic Investigation of the Concrete Gravity Dams, ACE2016, 21 - 23 Eylül 2016

Collections

Department of Civil Engineering, Conference / Seminar

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Citation Formats

M. Bybordiani and Y. Arıcı, “Motion Selection and Scaling for the Seismic Investigation of the Concrete Gravity Dams,” presented at the Motion Selection and Scaling for the Seismic Investigation of the Concrete Gravity Dams, ACE2016, 21 - 23 Eylül 2016, İatanbul, Türkiye, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/82501.