IDEA StatiCa Detail is based on a computer-aided implementation of stress field models. Simplified assumptions similar to the ones used in hand calculations are used, improved to allow ductility and SLS verifications, and based on clear material properties. Stress fields can be seen as a generalized Strut-and-Tie Method in which real members with stresses instead of force resultants are considered. The verification has been done against code independent cases as well as against existing codes with material laws as defined in the codes.
The software provides the possibility to design the positions and directions of reinforcement by a topology optimization method or alternatively by linear analysis. In particular, the design of the truss model by topology optimization identifies optimal reinforcement locations and directions, which can greatly assist the structural engineer in deciding how to reinforce the structure.
Easy input of geometry
Concrete Stress / Strains
Similarly to the Strut-and-Tie Method, the specification of input data, reinforcement design, the analysis, and the code assessment are very fast and can be done, contrary to general nonlinear programs in the order of 10 to 20 minutes. The model has been verified and validated, including all parameters entered into the calculation, by the prestigious Institut für Baustatik und Konstruktion, ETH Zürich. Therefore no special experience or knowledge is needed to understand the input values and the results. The assumptions of the solution are above the models recommended by national standards. However, all results are fully interpreted in terms of code provisions. Therefore the solution is code independent and at the same time code complying. The methods used for the calculation and assessment are general both in terms of structural topology, and the results provided. The results are comprehensible and reflecting reality to the full extent. They can serve not only for the assessment of ULS, but also for SLS including crack widths, deflections, and stress limitations.