Custom cross sections may be created in the Section Designer by using polygonal shapes. Interactive database editing then enables the efficient modification of section geometry. To demonstrate, this tutorial provides guidelines for using the Section Designer to model an AASHTO I-Beam Type I section.

The modeling process is as follows:

Figure 1 - Guideline and Fine grid spacing

Figure 2 - Draw section

Figure 3 - Section drawn

Figure 4 - Reshape mode

Additional points may be added along the cross-section boundary by using interactive database editing.

For example, a slab may be adjoined above the girder through the following process:

Figure 5 - Interactive database editing

Figure 6 - To Excel

Figure 7 - From Excel

Figure 8 - Final section