What does the triangle behind the values of the internal forces in the printout report mean?
The triangle indicates extreme values of internal forces (figure 1). In the results table of RSTAB and RFEM, these are shown in bold font (figure 2).
Bold font would not be very appealing in the printout report. For result combinations, the table always shows two values: the maximum and minimum.
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions