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in the area of action of the largest normal stresses, the more
rational section is.

6.7 The concept of bending center

Under cross bending of a beam when external forces are not in
the plane of symmetry of the cross section, bending may be
accompanied by torsion. To avoid this, it is necessary to apply
cross load in a plane parallel to the axis of the beam and passes
through the center of the bend. The bending centre is called the
point of application of the resultant tangential forces that arise in a
beam cross-section under bending. In sections with two (or more)
axes of symmetry the bending center coincides with the center of
section gravity. If the section has one axis of symmetry, the
bending center lies on this axis, but does not coincide with the
center of gravity.

Figure 6.13
For example, we define the position of the bending center for
asymmetrical double T profile beam (fig. 6.13). We assume that
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