Seismic analysis of concrete gravity dams including damfoundation-reservoir interaction

Yücel, Ali Rıza
The attractiveness of the hydroelectric power as a domestic, clean and renewable energy source increased with the rise of the energy demand within the last decade. In this context, concrete gravity dam construction gained a high momentum. Use of roller compacted concrete as a dam construction material became popular due to advantages such as reducing the construction duration and costs. Concrete gravity dams are special type of structures which requires an extensive care for their seismic analysis and design due to lack of any definite ductility providing mechanisms. Several methods are available for the dynamic analysis of concrete gravity dams. In this study seismic response of concrete gravity dams are investigated by utilizing the method of Fenves and Chopra (1984). This method considers the dam-reservoir-foundation rock interaction by taking the foundation rock flexibility effects, compressibility of the impounded water and the absorptive effect of the reservoir bottom materials into consideration. A user interface for the dynamic analysis of concrete gravity dams are developed for the engine originally developed by Fenves and Chopra (1984). The necessity of conducting response history analysis is demonstrated by the comparison of the parametric studies results with results obtained by pseudo-static analyses. Parametric studies and a deterministic sensitivity analysis were conducted to better understand the effects of parameters on the seismic response of concrete gravity dams. Fragility curves of a set of dams with typical sections and various properties were determined by damage assessments conducted with linear elastic analysis.


Seismic performance evaluation of roller compacted concrete gravity dams by pseudo dynamic testing
Aldemir, Alper; Binici, Barış; Department of Civil Engineering (2016)
The energy demands throughout the world have reached a level that could create irreversible impacts on the environment unless an overall energy policy to reduce the energy production relying on fossil fuels is implemented. The apparent effects of global warming enforced countries to take precautions and to set limits on the fossil fuel consumption. Thus, the renewable energy sources like hydropower, solar energy, biomass, etc. have, nowadays, been encouraged to generate electricity. Certainly, dams are exce...
Three dimensional dynamic response of a concrete gravity dam
Yılmaztürk, Sema Melek; Binici, Barış; Arıcı, Yalın; Department of Civil Engineering (2013)
Hydroelectric power is a commonly used alternative source of energy in developing countries. In this regard, concrete gravity dams are the most preferred dam type especially with the developments in the engineering industry. Roller compacted concrete became more popular in dam construction due to its advantages of speed and economy. Several methods are used for the design of concrete gravity dams by analyzing the dam response under static and dynamic loads. This study provides three dimensional linear dynam...
Performance of concrete gravity dams under earthquake effects
Soysal, Berat Feyza; Arıcı, Yalın; Department of Civil Engineering (2014)
Concerns about the seismic safety of gravity dams have increased with the construction of numerous new dams in the developing world as well as the need for the evaluation of existing dam stock in the developed countries. The common procedure for the design of concrete gravity dams has been linear analyses: there is scant experience on the design of such systems using nonlinear analyses as the post-linear behavior and performance limits of gravity dam monoliths are not well known. This study is focused on th...
Seismic analysis of concrete gravity dams
Akpınar, Uğur; Binici, Barış; Department of Civil Engineering (2019)
After the industrial revolution, energy has become one of the important issues determining the internal and external policies of the countries. Nowadays, to meet the energy needs of future generations and to reduce the damage to the environment, renewable energy sources are utilized. At this point, hydroelectric energy offers a clean and renewable energy source alternative. In addition to many built dams, the necessity of controlling existing dam stock punctuates the importance of studies on the seismic des...
Data Mining-Based Upscaling Approach for Regional Wind Power Forecasting: Regional Statistical Hybrid Wind Power Forecast Technique (RegionalSHWIP)
Ozkan, Mehmet Baris; Karagöz, Pınar (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
With the increasing need for the energy, the importance of renewable energy sources has also been increasing. In order to include the power produced by the wind into electricity grid in a controlled manner, power prediction has an important role. To produce a reliable wind power forecast, obtaining Wind Power Plants' (WPP) power generation data in real time and constructing the power forecast model with historical production values is a desirable action plan. However, this situation may not be applicable fo...
Citation Formats
A. R. Yücel, “Seismic analysis of concrete gravity dams including damfoundation-reservoir interaction,” M.S. - Master of Science, Middle East Technical University, 2013.