Number of spans? ICDAS Bridges has no limited number of spans, for both of LUSAS FEM model and Revit geometry model. Curved corridor of the bridge overpass? ICDAS COB automates a circular arc alignment overpass STLo by multi straight lines of 1m each, and by a simple input radius RY. The case of complicated curved alignment, coordinates for Lusas points must first be obtained from AutoCAD Civil 3D Points Report (Alignment XY coordinates and elevation Z-levels along the STLo). ICDAS COB in the next version will read these points to create the bridge.
Reinforcement verification in Lusas 16.0-1c1
Figure: 3D view of bridge deck in Lusas automated from ICDAS COB Option1.
Figure: Supplementary reinforcement on selected surfaces (top view) & Lusas RC Slab Design (bottom). The above figure shows an example of a 4 span bridge (1000, 15000, 15000, 1000)mm in top view. The boxes (A, 3-6, F) across the deck and the step 1m along the deck allow the users to assign supplementary reinforcement (Supp) individually on selected surfaces in Lusas V16.0-1c1. Example above shows ‘Supp YTop 20p200’ as the deck typically is tensile in cross direction at the selected surfaces. The deck otherwise is reinforced with main reinforcement ‘Main 16p200’ overall, top and bottom. In Lusas V16.0-1c1 go to Attributes tab > Design > RC Slab Design…, define ‘Main 16p200’ and ‘Supp 20p200’ as described above. Then assign ‘Main 16p200’ to all surfaces, ‘Supp YTop 20p200’ to the above selected surfaces. Once assign, by right-click on e.g. ‘Supp YTop 20p200’ > Select Assignments, the users can easily identify which surfaces on deck have this supplementary reinforcement. It helps the verification work in Lusas, and to model 3D reinforcement in Revit as well. For the verification work, refer Lusas Online Events minutes 32:15-35.42.
Prestressing cables? The cable curves (X,Y,Z) is designed in ICDAS Excel and paste in LUSAS manually. See example of prestressing cables in 150m length Savstrup double curved bridge deck. | 
