1. Excel input Sheet BRIDGE

/a/ Set Bridge=3 for Concrete Bridge Revit+Lusas model; Set Bridge=13 for LusasCOB.cmd only. The option ‘13’ is used when the users want to keep Revit model but update the LusasCOB.cmd file for Lusas only.

/b/ Create deck in *Profile_2D*.rfa being used in Revit Civil Structures; Only available when Civil Structures add-ins installed in Revit.

/c/ Create pier in *3D_Pier*.rfa being used for all types of bridges.

2. Excel input Sheet STL

/a/ Alignment horizontal radius RY, vertical radius RZ or vertical slopLongiZ

/b/ Cross section slopTop, slopMesh and box thicknesses

/c/ E, Nu, Rho, Alfa

/d/ UDL, Tandem, Class. UDLType on selected lane.

Deck Design

The 4-, 6-, nbottom-lines and boxes of cross section of deck

ICDAS characterizes a concrete deck cross section by many bottom lines to be input. Below show examples for 4-, 6-bottom-lines.

Figure: Lusas (top) and Revit (bottom) model for a 4-bottom-lines.

I addition to the bottom lines, a slab deck is constructed by minimum 8 boxes (surfaces) from right to left of the deck cross section, looking in STL direction. Box A, B, C represent the right wing; H, G, F the left wing of the deck. In between there are box 4 and 5 where box A, B, C count also as 1, 2, 3. Box 4 and 5 in the center can be modelled as many boxes in case of prestressing cables having many longitudinal lines represented the longitudinal cables. Or the cases where the center boxes need to fit many columns support below. ICDAS calculates the varying thicknesses and eccentricities of boxes using the key input of thicknesses and slopes in Excel file. Below shows an example for 6-bottom-lines.

Figure: Lusas (top), Revit (center) and Excel input sheet STL (bottom) for a 6-bottom-lines.

›     For horizontal deck set slopMesh = 0 for all boxes in row 4.

›     Each box has two thicknesses at Y1, Y2 given at input row 6, 7. Figure above shown Y1, Y2 at box 4 and 5.

›     slopTop 2.5% at the edge beam box A and thickness 565mm determine thickness 651mm at box C(Y2).

     If you want to raise the thickness 651, then raise the thickness 565mm (and change the slopTop of box A).

›     Set thickness 980mm at the center, then 905=980-3000*25/1000 needed for input box 4 and 5.

     If you raise the thickness 980, then modify the 905 accordingly.

›     slopTop input for box 4 and 5 needed for Revit only

ICDAS COB provide automations for the about two 4- and 6-bottom-lines profiles, rectilinear or circular arc alignment of the bridge, in Revit and Lusas models known as Option 1. 

Update 20-06-2018