Papers

Computer Simulation as a Design Tool for Concrete Structures

Paper presented at the ICCE-96 conference in Bahrain. This paper provides a basic overview of our 2D material models and examples of their application.

Computer simulation of failure of concrete structures for practice

Non-linear analysis of concrete structures became a novel design tool. It employs the power of computer simulation to support and enforce the creativity of structural engineers. Although it is frequently used in research and development its potential for engineering practice has not been yet fully discovered. In the new design standards for concrete structures, such as Eurocode 2 (1992), the non-linear behaviour of concrete is described by a uni-axial stress-strain diagram. However, this is only a fraction of the available knowledge of material models and theories discovered and validated by research. The finite-element-based failure analysis can take advantage of rational and objective theories such as fracture mechanics, plasticity and damage mechanics. It makes possible a “virtual testing” of building structures under designed loading and environmental conditions. The implementation of these advanced methods and techniques introduces new possibilities for the engineer, not only in research and development but also in practical design. Computer simulation is a modern tool for optimisation of structures, which can contribute to better economy in design.

Numerical Simulation of Concrete Under Fire

Presentation in PDF form of application of software ATENA to numerical simulation of concrete under fire. The analyses shown in this presentation were performed under the european project UPTUN.

Fracture-plastic model for the analysis of reinforced concrete structures subjected to fire

This paper summarizes modifications and extensions to the ATENA combined “fracture-plastic” material model for modelling of reinforced concrete structures subjected to fire. The behavior of the model is demonstrated on simple uniaxial tests as well as a t

Modelling Fibre Reinforced Concrete in ATENA

ATENA includes material models that can be easily customized for modelling fibre reinforced materials such as SHCC, ECC, HPFRC, UHPRFC. This white paper provides a brief introduction about ATENA capabilities for the simulation of these advanced and modern cementitious materials.

Safety Formats for Design Based on Non-linear Analysis

This article contains an overview of available safety formats for design based on non-linear analysis. A new method is also proposed, which requires two nonlinear analysis, but to enables estimate the structurual sensitivity to the scatter of input parameters.

On the choice between discrete or smeared approach in practical structural FE analyses of concrete structures

Paper presented at the Fourth International Conference on Analysis of Discontinuous Deformation in Glasgow, Scotland UK, 6-8th June 2001

Large Deflections

Large deflection of beams and slabs can activate a membrane action of reinforcement, which provides additional load bearing capacity. This problem was investigated by ATENA for reinforcement with limited ductility for assessment of remaining structural capacity.