Seismic Performance Evaluation of Concrete Gravity Dams by Using Pseudo Dynamic Testing and Simulations

2017-11-24
Aldemir, Alper
Binici, Barış
Dams are one of the mostimportantinfrastructure components servingfor water storage and energyproduction.Experimental studies on the seismic response of concrete gravity dams are scarce due to the complications regarding thelargescaleof dams and their interaction with the reservoir. This study presents the results of recent novel pseudo-dynamic dam tests (PSD) along with the nonlinear finite element simulations of the specimens. The test specimens were 1/75 scaled version of the highest monolith of a 124 m high concrete gravity dam in Turkey. Specimens wereconstructedwithconventional concrete (CVC) and roller compacted concrete with different compressive strength values. They were subjected to three subsequent ground motions followed by static pushover tests. It was found that the dam was expected to sustain significant base cracking, while retaining its integrity under the most credible earthquake scenario. The specimen with the lowest compressive strength failed through the formation of an inclined crack showing the importance of concrete tensile strength on the seismic response of concrete gravity dams. Numerical simulations were able to estimate the global demand parameters (i.e. base shear force and crest displacement), however crack estimations were significantly dispersed compared to the actual crack patterns.
Australian Earthquake Engineering Society 2017 Conference

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Citation Formats
A. Aldemir and B. Binici, “Seismic Performance Evaluation of Concrete Gravity Dams by Using Pseudo Dynamic Testing and Simulations,” presented at the Australian Earthquake Engineering Society 2017 Conference, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/85761.