In concrete elements;
Column and beam elements are modeled with rod finite elements, considering all 6 degrees of freedom at the nodal points. Shearwalls and slabs are modeled with shell finite elements (shell) containing degrees of freedom for both in-plane and out-of-plane displacements. At the nodes of shell finite elements, all 6 degrees of freedom are taken into account.
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The relationship between the numbers and colors of the local axes in the beam elements is as follows.
1 direction - Red
2 direction - Green
3 direction - Blue
There are 6 degrees of freedom in a cross-section of a bar element for which three-dimensional analysis is performed. These are translations in directions 1,2 and 3 and rotations about 1,2 and 3.
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As the finite element widths are reduced, the linked link elements will also increase.
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