Three dimensional dynamic response of a concrete gravity dam

Download

index.pdf

Date

2013

Author

Yılmaztürk, Sema Melek

Metadata

Show full item record

Item Usage Stats

303
views

139
downloads

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 dynamic analysis of roller compacted concrete gravity dam with a complete dam-foundation-water interaction by using EACD-3D-08 program. Foundation flexibility was included with damping and mass using boundary elements. Three dimensional solid elements were used for the idealization of the dam and water with using finite element methods. Compressibility of water with reservoir absorption was studied. In the light of USACE, performance criteria of linear analyses were assessed. Parametric study was conducted to determine the most influential parameters on the dam response. The importance and necessity of three dimensional analyses were investigated by comparing with linear two dimensional analyses. Linear analyses were then compared with three dimensional nonlinear analyses. In conclusion, the realistic dam seismic response can only be obtained by using three dimensional linear analyses with full interaction of dam-foundation-water.

Subject Keywords

Concrete dams., Concrete hydraulic structures., Earthquakes, Gravity dams.

URI

http://etd.lib.metu.edu.tr/upload/12615455/index.pdf
https://hdl.handle.net/11511/22354

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Seismic analysis of concrete gravity dams including damfoundation-reservoir interaction Yücel, Ali Rıza; Binici, Barış; Department of Civil Engineering (2013) 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 desig...
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...
Ground motion scaling for the prediction of the seismic response of concrete gravity dams Duygu, Mustafa Berk; Arıcı, Yalın; Department of Civil Engineering (2014) Designing dams for seismic safety gains importance as the number of dams are increasing as a result of increasing need in water storage and hydropower. To define a structure’s seismic safety, scaling of accelerograms should be considered as one of the most crucial elements. Appropriate scaling of ground motion records is required to better estimate the linear and nonlinear structural response of a structure. Although, in literature, there exist numerous methods dealing with this issue, it is required to det...
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...
Fluid-CO2 injection impact in a geothermal reservoir: Evaluation with 3-D reactive transport modeling AKIN, TAYLAN; Baser, Ali; Saracoglu, Onder; Akın, Serhat (2022-01-01) Geothermal energy is commonly recognized as an environmentally friendly source of energy. However, geothermal fluids have unusually high CO2 content, particularly, in carbonated geothermal reservoirs. An efficient method to mitigate the CO2 emissions of geothermal power plants is to re-inject the captured CO2 with the effluent fluid to mineralize mainly into calcite under reservoir conditions (e.g., reservoir temperatures ranging from 200 to 220 degrees C). One of the major concerns about the re-injection o...

Citation Formats

S. M. Yılmaztürk, “Three dimensional dynamic response of a concrete gravity dam,” M.S. - Master of Science, Middle East Technical University, 2013.