Seismic Response of “Karroon III” DAM to Non-Uniform Ground Motions

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Pouya, Mohammad Reza | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43806 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Ghaemian, Mohsen
Abstract:
Usually in analysis of arch dams, applied seismic motions on dam-foundation interface are assumed to be uniform. This is while that recorded motions show non-uniform accelerations in dam-foundation interface. Analyzing of the dam under this non-uniform accelerations we can find the importance of this assumption in analysis of arch dams. Two earthquakes were excited “KAROON III” dam at 20.11.2007 and 21.11.2007. The respective motions were recorded by the array of accelerometers that has been installed on the dam. The recorded motions, indicated non-uniformity of excitations in accelerometers were installed near the dam-foundation interface. Therefore this data provided an opportunity to study of non multiple support excitations in dams.
The results of linear dynamic analysis of KAROON III dam under 20.11.2007 earthquake, Illustrate that applying the assumption of non-uniform ground motions has significant influence in seismic response of the dam. These results indicate a good coincidence between the computed and recorded displacements on accelerometers that located in crest
Keywords:
Karun III Dam ; Linear Dynamic Analysis ; Multiple Support Excitations ; Pseudostatic Response