AutoCAD Structural Detailing 2015 was a specialized version of AutoCAD designed for structural drafting and the creation of steel and concrete reinforcement detailing . While Autodesk has since discontinued the software in favor of Autodesk Advance Steel
The 2015 release was the last version produced. Alternative Solutions:
Because the software is retired, it is no longer available on public trial pages. Use the following official channels to find legitimate installers: AutoCAD Structural 2015 Positioning Hotfix
Students may still be able to access legacy versions through the Autodesk Education Community if their institution's plan permits. Critical "Fixes" and Service Packs