Advances in Computational Design

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Development of engineering software to predict the structural behavior of arch dams

  • Altunisik, Ahmet Can (Karadeniz Technical University, Department of Civil Engineering) ;
  • Kalkan, Ebru (Karadeniz Technical University, Department of Civil Engineering) ;
  • Basaga, Hasan Basri (Karadeniz Technical University, Department of Civil Engineering)
  • Received : 2017.10.24
  • Accepted : 2018.01.19
  • Published : 2018.01.25
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Abstract

In this study, it is aimed to present engineering software to estimate the structural response of concrete arch dam. Type-1 concrete arch dam constructed in the laboratory is selected as a reference model. Finite element analyses and experimental measurements are conducted to show the accuracy of initial model. Dynamic analyses are carried out by spectrum analysis under empty reservoir case considering soil-structure interaction and fixed foundation condition. The displacements, principal stresses and strains are presented as an analysis results at all nodal points on downstream and upstream faces of dam body. It is seen from the analyses that there is not any specific ratio between prototype and scaled models for each nodal point with different scale values. So, dynamic analyses results cannot be generalized with a single formula. To eliminate this complexity, the regression analysis, which is a statistical method to obtain the real model results according to the prototype model by using fitting curves, is used. The regression analysis results are validated by numerical solutions using ANSYS software and the error percentages are examined. It is seen that 10% error rates are not exceeded.

Keywords

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