Abstract
This paper describes differences between models of a rectangular shaped reinforced concrete floor with ribs, commonly used by structural designers. Comparison analysis proves significant differences in result obtained from different models. Incompatibility is shown both in static as well as in modal analysis.
Highlights
The ease of creating computational models of complex structures encourages structural designers to reach for advance models, which are almost impossible to verify with simple methods
Whole model has been computed in complex stress state with 3D solid finite elements C3D20R
For S-F model convergence analysis have been performed for different finite elements size
Summary
The ease of creating computational models of complex structures encourages structural designers to reach for advance models, which are almost impossible to verify with simple methods. As BIM process increases its popularity, [1,2], number of 3D projects, with complex models containing beams and shell type of elements, [3], is getting higher. Such models, often without even a thought, are later subject of advance computational analysis. In case of model with beam type element only, uniform linear load, value of 40 kN/m (1.6 m ∙ 25 kN/m2 = 40 kN/m) have been applied. Presented work is part of wider problem of computational analysis model of engineering structures
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