Modelling of Steel-Concrete-Steel Structure Using FEM Plane Elements

This paper deals with modelling of steel-concrete-steel sandwich structure by FEM plane elements. In the introduction a brief description of a steel-concrete-steel sandwich structure is presented together with author´s motivation to deal with this type of a structure and its modelling. Current design approaches of steel-concrete-steel structure are also briefly mentioned. The following part of the article present a general description of two eventual modeling methods, including overview of advantages and disadvantages. One of the mentioned methods is based on effective stiffness without any need to divide the model into layers. The other one is based on physical layering of plane elements. The next part of the article is focused on the implementation of the presented methods using helpful tools, that may significantly reduce time of a modelling process. In the end, a short example of use of the presented methods is shown on a simple structure with the final conclusions about results of the analysis.