File Name: brdg01.cri, brdg02.cri ...

Summary

The Bridge Deck criteria is designed to provide an approximate representation of bridges on the cross section. It can be used to draw a single deck (Fig 1 in illustration ) or multiple decks (Fig 2) on a cross section cell. Also, it can be used to draw a single bridge deck that spans multiple shape clusters (Fig 3). This criteria is designed to be included by itself, and will not run in conjunction with other criteria types such as tmplt or shld criteria. It draws the bridge deck to the geopak shape.

User Defined Variables:

"BD01 DECK DEPTH"
Define as the the depth of the bridge deck. The default definition of 3 feet, is taken from the Global variable "BD DECK DEPTH".

"BD01 RAIL HEIGHT"
Define as the height of the bridge parapet, rail or whatever those structure engineer geeks call it. The default definition of 3 feet is taken from the Global variable BD RAIL HEIGHT.

"BD01 RAIL OFFSET"
The offset of the parapet is measured from the edge of the shape cluster. The default definition is 0

"BD01 MEDIAN SIDE OF CLUSTER"
This variable is used when a single bridge deck spans multiple shape clusters. To have the criteria continue the deck across the median between clusters instead of drawing a parapet or rail, define this variable as non-zero.

Typical input for a single cluster bridge deck such as depicted in Fig. 1 is as follows:

DEFINE  "BD01 DECK DEPTH"  1.5
DEFINE  "BD01 RAIL HEIGHT" 3
DEFINE  "BD01 RAIL OFFSET" 6

CRITERIA FOR SHAPE CLUSTER
   SHAPE CLUSTER BASELINE = L
   SHAPE CLUSTER PROFILE = L
   SHAPE CLUSTER TIE = 0
 
SIDE SLOPE LT 
include L:\brdg01.cri

SIDE SLOPE RT
include L:\brdg01.cri

Typical input for a duel cluster bridge deck such as depicted in Fig. 2 is as follows:

/* Outside of clusters */
DEFINE  "BD01 DECK DEPTH"  1.5
DEFINE  "BD01 RAIL HEIGHT" 3
DEFINE  "BD01 RAIL OFFSET" 6

/* Median side of clusters */
DEFINE  "BD02 DECK DEPTH"  1.5
DEFINE  "BD02 RAIL HEIGHT" 3
DEFINE  "BD02 RAIL OFFSET" 4

CRITERIA FOR SHAPE CLUSTER
   SHAPE CLUSTER BASELINE = L
   SHAPE CLUSTER PROFILE = L
   SHAPE CLUSTER TIE = -20

SIDE SLOPE LT
    include L:\brdg01.cri
    
SIDE SLOPE RT
    include L:\brdg02.cri
    
CRITERIA FOR SHAPE CLUSTER
   SHAPE CLUSTER BASELINE = L
   SHAPE CLUSTER PROFILE = L
   SHAPE CLUSTER TIE = 20

SIDE SLOPE LT
    include L:\brdg02.cri
    
SIDE SLOPE RT
    include L:\brdg01.cri

Typical input for a single deck that spans multiple clusters, as depicted in Fig. 3 is as follows:

/* Outside of clusters */
DEFINE  "BD01 DECK DEPTH"  1.5
DEFINE  "BD01 RAIL HEIGHT" 3
DEFINE  "BD01 RAIL OFFSET" 6

/* Median side of clusters */
DEFINE  "BD02 DECK DEPTH"  1.5
DEFINE  "BD02 RAIL HEIGHT" 3
DEFINE  "BD02 RAIL OFFSET" 4
DEFINE  "BD02 MEDIAN SIDE OF CLUSTER" 1

CRITERIA FOR SHAPE CLUSTER
   SHAPE CLUSTER BASELINE = L
   SHAPE CLUSTER PROFILE = L
   SHAPE CLUSTER TIE = -20

SIDE SLOPE LT
    include L:\brdg01.cri
    
SIDE SLOPE RT
    include L:\brdg02.cri
    
CRITERIA FOR SHAPE CLUSTER
   SHAPE CLUSTER BASELINE = L
   SHAPE CLUSTER PROFILE = L
   SHAPE CLUSTER TIE = 20

SIDE SLOPE LT
    include L:\brdg02.cri
    
SIDE SLOPE RT
    include L:\brdg01.cri