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