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Bridge Decking

B.gif (998 bytes)ridge Decking is manufactured by cold-press riveting truss shaped recticuline bars to rectangular bearing bars.  The resulting product is an exceptionally durable heavy duty grating with superior stiffness and lateral stability.  Bridge decking is often the preferred heavy duty grating for concentrated or stress applications subject to impact and repetitive loads.  Common applications include bridge floors, highways, inlets, and airport trench drain covers. GP13bridgedeck1.gif (2614 bytes)

 

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THE FOLLOWING LOAD TABLE WAS DEVELOPED USING
"MAXIMUM" TRAFFIC CONDITIONS"

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DEFLECTION IS LIMITED TO THE LESSER OF L/400 OR .125

TYPE R-37-5
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CONTINUOUS SPANS

The safe spans indicated for heavy duty gratings and bridge decking in the preceding load tables are based upon simple span calculations.  When the grating is properly anchored and the span is continuous over 3 or more supports, the above spans may be increased by a multiple of 1.20.

 

  LOAD TABLE: TYPE R-37-5 BRIDGE DECKING
BEARING BARS 2-5/16" FACE TO FACE, RIVETS  5" ON CENTER
GPtraffictruck1.gif (307 bytes) GPtraffictruck2.gif (290 bytes) GPtraffictruck3.gif (208 bytes) GPtraffictruckcar4.gif (221 bytes) GPtraffictrucklift5.gif (238 bytes) GPtraffictrucklift6.gif (229 bytes) GPtraffictrucklift7.gif (213 bytes)
H-20 TRUCK H-15 TRUCK H-20 TRUCK AUTO TRAFFIC 5 TON FORKLIFT 3 TON FORKLIFT 1 TON FORKLIFT
BEARING
BAR SIZE		 RECTICULINE
BAR SIZE		 WEIGHT LBS.
PER SQ. FT.		 SECTION
MOD.
PER FT. OF WIDTH		 H-20 TRUCK H-15 TRUCK H-10 TRUCK AUTO TRAFFIC 5 TON FORKLIFT 3 TON
FORKLIFT		 1 TON
FORKLIFT
MAXIMUM SAFE SPAN

2-1/2 x 1/4
2-1/2 x 5/16
2-1/2 x 3/8
3 x 1/4
3 x 5/16
3 x 3/8
3-1/2 x 1/4
3-1/2 x 5/16
3-1/2 x 3/8
4 x 1/4
4 x 5/16
4 x 3/8
5 x 1/4
5 x 5/16
5 x 3/8

 1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16		 17.1
19.3
21.2
19.1
21.7
24.0
21.0
24.1
26.9
23.0
26.6
29.7
25.0
31.4
35.4		 1.220
1.488
1.744
1.756
2.143
2.512
2.390
2.917
3.419
3.122
3.810
4.465
4.878
5.952
6.977		 1'-6"
1'-8"
1'-10"
1'-10"
2'-1"
2'-3"
2'-2"
2'-6"
2'-9"
2'-7"
3'-0"
3'-5"
3'-8"
4'-3"
4'-10"		 1'-4"
1'-6"
1'-8"
1'-8"
1'-10"
2'-1"
2'-0"
2'-4"
2'-8"
2'-6"
2'-10"
3'-3"
3'-6"
4'-2"
4'-9"		 1'-2"
1'-4"
1'-6"
1'-6"
1'-9"
2'-0"
1'-11"
2'-3"
2'-7"
2'-4"
2'-10"
3'-2"
3'-6"
4'-2"
4'-10"		 3'-4"
4'-0"
4'-4"
4'-7"
4'-11"
5'-2"
5'-4"
5'-9"
6'-1"
6'-2"
6'-7"
6'-11"
7'-8"
8'-2"
8'-8"		 1'-1"
1'-2"
1'-4"
1'-4"
1'-7"
1'-9"
1'-8"
2'-0"
2'-3"
2'-1"
2'-5"
2'-9"
3'-0"
3'-7"
4'-1"		 0'-11"
1'-1"
1'-3"
1'-3"
1'-6"
1'-8"
1'-7"
1'-11"
2'-2"
2'-0"
2'-5"
2'-9"
3'-0"
3'-7"
4'-2"		 1'-3"
1'-7"
1'-9"
1'-10"
2'-2"
2'-6"
2'-5"
2'-11"
3'-5"
3'-1"
3'-9"
4'-5"
4'-9"
5'-10"
6'-9"