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The purpose of this tutorial is to utilize the [Section Designer|kb:Section Designer] to develop a bulb girder section with rounded corners, such as the one shown in the figure below:

!section dimensions.png|border=1,hspace=30px!

First, start the section designer and [use polygons to draw the outline of the bulb girder section|tutorials:Drawing polygonal sections in section designer and editing their geometry via interactive database editing] without the radius at the corners as shown in the screenshot below:

!rectangular section.png|border=1,hspace=30px!

Switch to the reshape mode via "Draw > Reshape Mode", click on the section and then right-click on each corner joint to specify a radius where needed:

!creating radial chamfers.png|border=1,hspace=30px!

Below is the final bulb tee girder section with rounded corners:

!final section.png|border=1,hspace=30px!

h1. Attachments

* [SAP2000 V14.2.0 model for the above example|^chamfered bulb tee section V14.2.0.zip] (Zipped SDB file)

{related-incident:no=24260|comment=Creating bulb girder sections with rounded corners}