Everyday engineering practice relies on simplificated methods to design concrete details. As the structures becomes slender and effective, we need to focus more on the checks of serviceability limits states. That´s why we decided to implement the methods which are able to perform SLS checks. As an example we can use deep beam, which is reinforced sufficiently from ULS point of view, but we can recognize few areas with excesive tensile strains. They refer to shear cracks and also few flexural cracks at the bottom.

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