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TO DO (see 'for-label for assigneename' 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 diagrams concerning 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 - Reference point, insertion point, and center of gravity{center-text}

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h1. Previous page content:

This page provides information about the location of reference point, insertion point, and center of gravity for a bridge deck section.

* Bridge section reference point is horizontally located at midpoint between the exterior girders; for "Concrete Flat Slab" this point is taken at midpoint of total width less the left and right overhangs.
* For additional information and visual illustration, please see the figure below:

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