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*TO DO* (see 'for-name' label):

* Verify and document that the results are reported relative to the centroid of the section.
* Upload model and create a related test problem.

*Related model location:*

* ondrej\test_problems\sap2000\tendons as load and elements WIKI XML 16133\figs - reference, insertion and cg points\ (XML model id #73)
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The *reference point* of a bridge deck section is located at the midpoint between exterior girders. For concrete flat slabs, the reference point is midway between total width minus overhanging portions.

For additional details and visuals on reference point, *insertion point*, and *center of gravity*, please see Figure 1:

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!fig 1.png|align=center,border=1!

{center-text}Figure 1 - Visuals for reference point, insertion point, and center of gravity{center-text}