AutoCAD® Revit® Structure Suite software extends the building information modeling (BIM) process for structural engineering firms by combining Autodesk® Revit® Structure software, AutoCAD® software, and AutoCAD® Structural Detailing software into a single solution. Revit Structure helps to keep design and documentation coordinated while providing bidirectional links to popular structural analysis software, including Autodesk® Robot™ Structural Analysis software. Extend design data to fabrication with AutoCAD Structural Detailing, a powerful solution for detailing and creation of fabrication shop drawings for steel and reinforced concrete structures. AutoCAD Revit Structure Suite provides an end-to-end solution to help design teams more efficiently deliver structural engineering projects.
Revit Structure 2011 Release Comparison Matrix 
Revit Structure 2011 Brochure 
More at www.autodesk.com/revitstructure
AutoCAD Revit Structure Suite also includes:
AutoCAD® Structural Detailing software, built on the familiar AutoCAD® platform, enhances productivity with more precise detailing and creation of fabrication shop drawings. Help improve accuracy through material-specific bills of quantities and schedules. Automate concrete reinforcement definition and shop drawing creation for various types of structural concrete members. Model steel structures or import CIS/2 files, helping to enable faster and more efficient modeling of steel connections and shop drawings. Streamline the steel fabrication process with links to computer numeric controlled (CNC) machines. Extend design to fabrication with direct integration between Revit® Structure software and AutoCAD Structural Detailing software.