Analysis of Concrete Arch Dams: Agenda
  1. Arch Dams – Geometry & Basic Concepts
  2. Construction Methods
    • Horizontal Construction
    • Vertical Block Construction
    • Roller Compacted Concrete (RCC)
  3. Methods of Analysis
    • Old and True: Trial Load Methods
    • Finite Element Analysis
    • Others
  4. Evaluation Tools
    • Standard Evaluation Criteria
      • U.S. Bureau of Reclamation
        • Design of Arch Dams,
        • Engineering Monograph No. 19,
        • Engineering Monograph No. 34
      • U.S. Army Corp of Engineers
        • EM 1110-2-2201 Arch Dam Design
      • FERC
        • Chapter 11, Arch Dam Guidelines
    • Thermal Analysis
      • Spreadsheets
      • Finite element analysis
    • Linear vs. Nonlinear Analysis
      • Linear typically assumes homogeneous, monolithic behavior
      • Nonlinear usually limited to structural, or geometric, nonlinearities such as joints, cracks. Most of the time material property is assumed to behavior linearly.
    • Engineering Geology
      • Stereonets useful to evaluate rock block stability
  5. Performing the Analysis
    • Model Development
    • Static Loads
      • Gravity
      • Temperatures
      • Reservoir, Sedimentation, Tailwater
      • Dynamic Loads
        • Hydrodynamic Interaction
          • Generalized Westergaard’s Added Mass
          • Fluid Elements
          • Acoustics
        • Seismic ground motions
          • Accelerations
          • Displacements
          • Response Spectrum
  6. Potential Failure Modes
    • Overstressing
    • Stability
      • Overturning is not evaluated
      • Sliding along Interface
      • Rock Block Stability
      • Overtopping and Erosion
  7. Analysis Example
    • Preparing the Model
    • Thermal Analysis
    • Static Analysis
    • Dynamic Analysis
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