Figure 14
The three-dimensional view of a multi-story structural mesh composed of vertical columns and horizontal beams. The mesh is constructed from quadrilateral black lines overlaid on a gray reference structure. Strain distribution is visualized using colored circular markers at the mesh nodes, with a vertical color scale on the right labeled “epsilon subscript rel in percentage,” ranging from negative 0.2 percent (dark blue) to 0.2 percent (red), with an interval of 0.1 percent, passing through shades of blue, yellow, orange, and red. The structure includes nine vertical columns supporting three levels of horizontal beams. Each floor level features dense mesh zones arranged in circular patches, especially concentrated around beam-column junctions. These patches exhibit a checkered pattern of nodal colors, with yellow and orange nodes dominating the upper areas and dark blue nodes concentrated at the base, indicating compression. At the base of each column, orange, purple, and blue nodes are present. Four labeled points marked with white rectangular tags, A, B, C, and D, are embedded in the structure. Label A is positioned at the right side of the top floor beam. Label B is located on the middle floor, third column from the left. Label C is near the lower portion of the fourth column from the left, and label D appears at the bottom of the rightmost column. The structure is shown in full perspective, with depth indicated by visible lines and surfaces receding into three-dimensional space.Undeformed and deformed mesh at t = 0.016 s. The excitation is applied to the purple colored nodes. The schematic buildings fixed boundary is located at the bottom nodes of the vertical frames. For evaluation of the transient displacements, the evaluation nodes are marked green. Source: Authors’ own work