Bridge Box Girder 1

C3D BridgeBoxGirder1 — bridge deck on a single box girder, with optional barriers

At a glance


Kind	Subassembly (composed into an assembly)
Domain	Bridge
Civil 3D equivalent	`BridgeBoxGirder1`
Geometry	21 points, 21 links, 3 shapes
Conditional geometry	12 of the points are created inside a branch — which ones appear depends on the parameters and the target surface

Parameters

Defaults are the metric values the palette inserts. Every parameter can be driven by an expression or a target.

Parameter	Type	Default	Meaning
`LeftWidth`	number (metres unless the description says otherwise)	5.34	Deck half width, left (m)
`RightWidth`	number (metres unless the description says otherwise)	5.34	Deck half width, right (m)
`LeftDefaultSlope`	cross slope as a ratio (−0.02 = 2 % fall)	-0.02	Left deck slope
`RightDefaultSlope`	cross slope as a ratio (−0.02 = 2 % fall)	-0.02	Right deck slope
`SoffitDepth`	number (metres unless the description says otherwise)	2	Deck to soffit (m)
`EdgeDepth`	number (metres unless the description says otherwise)	0.15	Deck depth at the edge (m)
`FlangeDepth`	number (metres unless the description says otherwise)	0.3	Deck depth at the end of the overhang (m)
`OverhangWidth`	number (metres unless the description says otherwise)	1.2	Overhang beyond the web (m)
`GirderWidth`	number (metres unless the description says otherwise)	2	Web to web (m)
`IncludeBarriers`	number (metres unless the description says otherwise)	1	1 = draw a barrier on each edge
`BarrierA`	number (metres unless the description says otherwise)	0.81	Barrier height (m)
`BarrierB`	number (metres unless the description says otherwise)	0.131	Barrier top width (m)
`BarrierC`	number (metres unless the description says otherwise)	0.059	Barrier upper face width (m)
`BarrierD`	number (metres unless the description says otherwise)	0.125	Barrier lower face width (m)
`BarrierE`	number (metres unless the description says otherwise)	0.557	Barrier upper face height (m)
`BarrierF`	number (metres unless the description says otherwise)	0.178	Barrier lower face height (m)

Points

Point codes are what feature lines, styles and quantity take-off match on — they are the contract this subassembly publishes.

Point	Code	Placed	From	Expression
`P2`	Crown_Deck	placed at the attachment point (an absolute offset/elevation)	—	`0 / 0`
`P1`	EBD	offset + elevation delta from the reference point	P2	`0-LeftWidth / LeftWidth*LeftDefaultSlope`
`P3`	EBD	offset + elevation delta from the reference point	P2	`RightWidth / RightWidth*RightDefaultSlope`
`P4`	—	offset + elevation delta from the reference point	P1	`0 / 0-EdgeDepth`
`P5`	—	offset + elevation delta from the reference point	P1	`OverhangWidth / 0-FlangeDepth`
`P9`	—	offset + elevation delta from the reference point	P3	`0 / 0-EdgeDepth`
`P8`	—	offset + elevation delta from the reference point	P3	`0-OverhangWidth / 0-FlangeDepth`
`P7`	—	offset + elevation delta from the reference point	P8	`0-GirderWidth / 0-SoffitDepth+FlangeDepth`
`P6`	—	offset + elevation delta from the reference point	P7	`(P5.Offset+GirderWidth)-P7.Offset / 0-((P3.Y-P1.Y)/(P3.Offset-P1.Offset))*(P7.Offset-(P5.Offset+GirderWidth))`
`LB1` conditional	—	offset + elevation delta from the reference point	P1	`0 / 0`
`LB2` conditional	—	offset + elevation delta from the reference point	LB1	`0 / BarrierA`
`LB3` conditional	—	offset + elevation delta from the reference point	LB2	`BarrierB / 0`
`LB4` conditional	—	offset + elevation delta from the reference point	LB3	`BarrierC / 0-BarrierE`
`LB5` conditional	—	offset + elevation delta from the reference point	LB4	`BarrierD / 0-BarrierF`
`LB6` conditional	—	offset + elevation delta from the reference point	LB1	`BarrierB+BarrierC+BarrierD / 0-(BarrierB+BarrierC+BarrierD)*LeftDefaultSlope`
`RB1` conditional	—	offset + elevation delta from the reference point	P3	`0 / 0`
`RB2` conditional	—	offset + elevation delta from the reference point	RB1	`0 / BarrierA`
`RB3` conditional	—	offset + elevation delta from the reference point	RB2	`0-BarrierB / 0`
`RB4` conditional	—	offset + elevation delta from the reference point	RB3	`0-BarrierC / 0-BarrierE`
`RB5` conditional	—	offset + elevation delta from the reference point	RB4	`0-BarrierD / 0-BarrierF`
`RB6` conditional	—	offset + elevation delta from the reference point	RB1	`0-(BarrierB+BarrierC+BarrierD) / 0-(BarrierB+BarrierC+BarrierD)*RightDefaultSlope`

Links

Link	Code	Between	Role
`L1`	Deck	P1 → P2	drawn
`L2`	Deck	P2 → P3	drawn
`L9`	Bridge	P3 → P9	drawn
`L8`	Bridge	P9 → P8	drawn
`L7`	Bridge	P8 → P7	drawn
`L6`	Bridge	P7 → P6	drawn
`L5`	Bridge	P6 → P5	drawn
`L4`	Bridge	P5 → P4	drawn
`L3`	Bridge	P4 → P1	drawn
`LBL0`	Barrier	LB1 → LB2	drawn
`LBL1`	Barrier	LB2 → LB3	drawn
`LBL2`	Barrier	LB3 → LB4	drawn
`LBL3`	Barrier	LB4 → LB5	drawn
`LBL4`	Barrier	LB5 → LB6	drawn
`LBL5`	Barrier	LB6 → LB1	drawn
`RBL0`	Barrier	RB1 → RB2	drawn
`RBL1`	Barrier	RB2 → RB3	drawn
`RBL2`	Barrier	RB3 → RB4	drawn
`RBL3`	Barrier	RB4 → RB5	drawn
`RBL4`	Barrier	RB5 → RB6	drawn
`RBL5`	Barrier	RB6 → RB1	drawn

Shapes (materials)

Shape	Material code	Boundary points
`S1`	Bridge	P1, P2, P3, P9, P8, P7, P6, P5, P4
`SLB`	Barrier	LB1, LB2, LB3, LB4, LB5, LB6
`SRB`	Barrier	RB1, RB2, RB3, RB4, RB5, RB6

Generated page. The tables above are read from the built-in catalogue itself (yu3d_stock_dump), so they always match the version of yucad3d you are running.