A point reaction is transferred to the model via a steel plate where the plate is not checked, it serves as reaction transfer device. The steel plate prevents the occurrence of cracks in concrete and deforms. The dimensions of the plate may affect the results significantly. This kind of support is perfect for structures where a real steel plate is, such as roller bridge bearing.
Boundary conditions definition is always a tricky task when modeling the structure in FEA software. The model with only properly defined supports can capture reality. There are five types of supports in IDEA StatiCa Detail (CSFM) let's find out what are they for.
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