Analysis of Dams is one of the specialities of DIANA for its extensive library of materials models and analysis functionalities that are suited for this purpose, eg. phased (staged) construction, soil-structure and fluid-structure interaction, user supplied material models, large range of interface models, large displacement and large strain analyses, material nonlinearity, time and ambient dependency effects, and nonlinear dynamic analysis.

Furthermore, the program is structured such that all different analyses can be performed in one analysis command sequence. 

A dam is a complex structure whose analysis requires the following element features:

  • wide range of analysis functionality - ranging from modelling construction phases to earthquake analysis and coupled phenomena
  • ability to model nonlinear material behaviour and time, or ambient, dependent material behaviour
  • opportunity to model interaction of the reservoir and of the foundation with the dam body
  • possibility to do all of this in an automated sequence, without the user needing to manually convert results from an analysis into input for the subsequent analysis

In addition to the dam specific technical data and specifications below, see also the general functionality information (to the right of this page).  Our range of brochures are also available for download.  Or, if you have a specific question about DIANA that you would like to ask, please use the webform.

DEDICATED FEATURES FOR DAM ANALYSIS

  • Direct frequency analysis, modal response analysis, and spectral response analysis, with fluid-structure interaction
  • Linear and nonlinear time domain analysis with a wide choice of time integration schemes
  • Hybrid frequency-time domain analysis, with possibility to include compressibility of the fluid and bottom absorption
  • Multi-directional acceleration loads
  • Viscous, structural and continuous damping
  • Specified or calculated initial conditions

Material models

  • Mohr-Coulomb and Drucker-Prager
  • Tresca and Von Mises
  • Modified Mohr-Coulomb (double-hardening)
  • Hoek-Brown and Jointed-rock
  • Modified Cam-Clay
  • Jardine (London Clay)
  • Nonlinear elasticity (Duncan-Chang)
  • Discrete cracking with interface elements (inc. Janssen model)
  • Smeared cracking models with fixed and rotating cracks
  • Material aging
  • Liquefaction

Analysis features

  • Fully coupled consolidation
  • Saturated and partially saturated soils
  • Steady-state and transient ground-water flow
  • Drained/undrained soil
  • Phased analysis
  • Nonlinear analysis

Material models

  • Viscoelasticity
  • Shrinkage
  • Linear elastic and plastic reinforcements
  • User-supplied materials
  • Linear, nonlinear and hyper elasticity
  • Mohr-Coulomb and Drucker-Prager
  • Multi-directional fixed crack model
  • Total strain crack models
  • Several models for joints

Analysis features

  • Coupled thermo-stress analysis
  • Young hardening concrete behaviour also with cooling
  • Time, temperature and maturity dependency
  • Discrete and smeared crack analysis
  • Dedicated post-processing of crack patterns