steel structural plate pipe thickness … · sheet 3 of 7 commonwealth of pennsylvania department...
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![Page 1: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/1.jpg)
SHEET 1 OF 7
BD-635M
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
DESIGN TABLES
FOR METAL CULVERTS
REFERENCE DRAWINGS
ENDWALL DETAILS FOR METAL CULVERTS
GABION ENDWALL DETAILS
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
MAX.
(mm)
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
NOTES:
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
SERVICE LIFE OF 35 YEARS.
CIRCUMFERENCE. THE PLATES LOCATED BETWEEN THE INVERT PLATES AND
PLATES. (SEE SKETCH)
90^
* *
*
INVERT PLATES
0.38 mm LESS THAN THE INVERT PLATES
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
TOP PLATES
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
STEEL STRUCTURAL PLATE PIPE THICKNESS REQUIREMENTS
WITH MINIMUM PREDICTED METAL LOSS CONDITION
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
TOP PLATE THICKNESS 3.56 mm TOP PLATE THICKNESS 4.32 mm TOP PLATE THICKNESS 4.79 mm TOP PLATE THICKNESS 5.54 mm TOP PLATE THICKNESS 6.32 mm TOP PLATE THICKNESS 7.11 mmTOP PLATE THICKNESS 2.82 mm
(BACKFILL UNIT DENSITY = 2250 kg/m )3
BASED ON THE METAL LOSS OF 50 m PER YEAR.
REQUIREMENTS OF AASHTO M 167/M 167M AND MUST BE GALVANIZED.
BD-631M
BD-634M
1500
1810
2120
2430
2740
3050
3360
3670
3980
4290
4600
4910
5220
5530
5840
6150
9100
7900
7000
6400
5800
5200
4900
4600
4300
12800
10600
4.32 2.82 6.32 4.79
9100
8200
7600
7000
6400
6100
15200
18300
13100
11600
10100
5800
5200
4.32 3.56 7.11 5.54 24100
9100
8500
7900
20100
17100
14900
13400
7300
7000
11900
11000
10100
6700
6100
4.79 4.32 7.11 5.54 26800
9400
8800
22300
19200
16800
14900
8200
7900
13400
12200
11000
7300
7000
10400
6700
4.79 4.79 7.11 5.54 31400
26200
22600
19500
17400
9800
9100
15500
14300
13100
8500
8200
11900
7600
11300
10400
5.54 5.54 6.32 36000
29900
25600
22300
19800
18000
16200
14900
9800
9400
13700
8800
12800
11900
-
11000
10400
6.32 6.32 6.32 40500-
33800
29000
25300
22600
20100
18300
16800
15500
14300
13400
12500
11900
11300
10700
10000
7.11 7.11 7.11-
HEIGHT LESS THAN 2400 mm OR THE SPAN LENGTH, WHICHEVER IS GREATER,
THE DESIGN OF THE TOP PLATE MUST BE CHECKED FOR WORST LIVE LOAD
PLUS DEAD LOAD CONDITION.
8. PIPES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE.
BUT NO LESS THAN TOP PLATES.
LESS THAN THE INVERT PLATES, BUT NO LESS THAN THE UPPER TOP
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
GENERAL NOTE:
IF LIVE LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL
4. INVERT PLATES ARE THE PLATES AT THE LOWER 90^ OF THE PIPE
5. ALL STEEL PLATES ARE 152 x 51 CORRUGATION AND MUST MEET THE
FOR SHEETS 1 THROUGH 3, ALL DIMENSIONS ARE IN MILLIMETERS
UNLESS OTHERWISE NOTED. FOR U.S. CUSTOMARY UNIT DETAILS,
SEE SHEETS 5 THROUGH 7. SHEET 4 IS IN DUAL UNITS.
THE HORIZONTAL DIAMETER LINE OF THE PIPE MAY BE 0.38 mm
408 ARE USED.
CORROSIVE ENVIRONMENTS.
DIA.
FILL
9. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
BRIDGE ENGINEER APPROVAL.
(mm)
HEIGHT
(mm)
HEIGHT
FILL
MAX.
(mm)
HEIGHT
FILL
MAX.
(mm)
HEIGHT
FILL
MAX.
(mm)
HEIGHT
FILL
MAX.
(mm)
HEIGHT
FILL
MAX.
(mm)
HEIGHT
FILL
MAX.
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
300 mm AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 900 mm, A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010
STANDARD
![Page 2: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/2.jpg)
SHEET 2 OF 7
BD-635M
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
TOP
PLATE
SIZE
SPAN RISE
1850
1930
2060
2130
2210
2340
2410
2490
2620
2690
2840
2900
2970
3120
3250
3480
MINIMUM
REQUIRED
THICKNESS
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
SPAN RISE
TOP
PLATE
MINIMUM
REQUIRED
THICKNESS
SIZE
CORNER BEARING PRESSURE CORNER BEARING PRESSURE
INVERT PLATES
TOP PLATES
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
STEEL STRUCTURAL PLATE PIPE-ARCH THICKNESS REQUIREMENTS
(mm) (mm)
(mm)
(mm) (mm)
(mm)
3330
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1910
1960
2010
2060
2110
2210
2160
2.82 2.82 4.326.324300
4000
3700
3700
3400
3400
3000
3000
2700
2700
2100
2100
2100
1800
1800
1500
1800
3.56
6100
5800
5500
5200
4900
4900
4600
4300
4300
4000
4000
4000
3700
3700
3000
3400
6400
8200
7600
7300
7000
6700
6400
6100
5800
5800
5500
5500
5200
4900
4900
4600
4600
85002.82 4.326.323.56 3530
3610
3760
3810
3860
3910
4090
4240
4290
4340
4520
4670
4720
4780
4830
5050
5000
2260
2310
2360
2410
2460
2540
2570
2620
2670
2720
2770
2820
2870
2920
3000
3070
3020
6.32 4.794.32 2.82 2.82 1500
1200
6.32 4.323.56 2.82
3000
2700
2700
2700
2700
2400
2400
2100
2100
2100
1800
1800
1800
1800
1500
1800
3000
4300
4000
4000
4000
4000
3700
3400
3400
3400
3000
3000
3000
3000
2700
2700
2700
43006.32 4.323.56 2.82 6.32 4.794.32 2.82
WITH MINIMUM PREDICTED METAL LOSS CONDITION (457 mm CORNER RADIUS)3
(BACKFILL UNIT DENSITY = 2250 kg/m )
0.190 MPa 0.290 MPa 0.385 MPa 0.190 MPa 0.290 MPa 0.385 MPa
NOTES:
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
SERVICE LIFE OF 35 YEARS.
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
BASED ON THE METAL LOSS OF 50 m PER YEAR.
REQUIREMENTS OF AASHTO M 167/M 167M AND MUST BE GALVANIZED.
HEIGHT LESS THAN 2400 mm OR THE SPAN LENGTH, WHICHEVER IS GREATER,
THE DESIGN OF THE TOP PLATE MUST BE CHECKED FOR WORST LIVE LOAD
PLUS DEAD LOAD CONDITION.
8. PIPE-ARCHES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE.
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
IF LIVE LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL
4. INVERT PLATES INCLUDE THE CORNER PLATES OF THE PIPE-ARCHES.
5. ALL STEEL PLATES ARE 152 x 51 CORRUGATION AND MUST MEET THE
408 ARE USED.
CORROSIVE ENVIRONMENTS.
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
9. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
BRIDGE ENGINEER APPROVAL.
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
300 mm AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 900 mm, A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010
STANDARD
DESIGN TABLES
FOR METAL CULVERTS
![Page 3: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/3.jpg)
SHEET 3 OF 7
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (mm)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
TOP
PLATE
SIZE
SPAN RISE
MINIMUM
REQUIRED
THICKNESS
CORNER BEARING PRESSURE
4040
4110
4270
4320
4390
4670
4750
4950
5030
5180
5230
5310
5510
5660
5870
5940
5990
6270
6220
5720
INVERT PLATES
TOP PLATES
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
STEEL STRUCTURAL PLATE PIPE-ARCH THICKNESS REQUIREMENTS
STANDARD
DESIGN TABLES
FOR METAL CULVERTS
WITH MINIMUM PREDICTED METAL LOSS CONDITION (787 mm CORNER RADIUS)
(BACKFILL UNIT DENSITY = 2250 kg/m )3
(mm) (mm)
(mm)
0.190 MPa 0.290 MPa 0.385 MPa
4550
4830
5460
6070
2840
2900
2950
3000
3050
3150
3200
3300
3350
3400
3450
3510
3610
3660
3760
3810
3860
4010
3960
3710
3100
3250
3560
3910
3.56
2.82 3000 3.56 2.82 6.32 4.32 4900 4.32 2.82 7.11 4.79 6700 4.32 2.82 7.11 5.54
3000
2700
2700
2700
2400
2400
2400
2400
2100
2100
2100
2100
2100
1800
1800
1800
1800
1500
1500
1500
1500
1200
1200
3.56
4900
4600
4600
4600
4300
4000
4000
4000
4000
3700
3700
3700
3700
3400
3400
3400
3400
3000
3000
3000
3000
2700
2700
3.56
6400
6400
6100
6100
5800
5800
5500
5500
5500
5200
5200
4900
4900
4900
4600
4600
4600
4300
4300
4300
4300
4000
4000
3.56
NOTES:
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
SERVICE LIFE OF 35 YEARS.
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
BASED ON THE METAL LOSS OF 50 m PER YEAR.
REQUIREMENTS OF AASHTO M 167/M 167M AND MUST BE GALVANIZED.
HEIGHT LESS THAN 2400 mm OR THE SPAN LENGTH, WHICHEVER IS GREATER,
THE DESIGN OF THE TOP PLATE MUST BE CHECKED FOR WORST LIVE LOAD
PLUS DEAD LOAD CONDITION.
8. PIPE-ARCHES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE.
BD-635M
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
IF LIVE LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL
4. INVERT PLATES INCLUDE THE CORNER PLATES OF THE PIPE-ARCHES.
5. ALL STEEL PLATES ARE 152 x 51 CORRUGATION AND MUST MEET THE
CORROSIVE ENVIRONMENTS.
408 ARE USED.
BRIDGE ENGINEER APPROVAL.
9. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
MAX.
FILL
(mm)
HEIGHT
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
300 mm AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 900 mm, A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010
![Page 4: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/4.jpg)
SHEET 4 OF 7
BD-635M
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
STANDARD
FOR METAL CULVERTS
DESIGN DETAILS
CONCRETE PAVED INVERT DETAILS
CIRCULAR PIPE PIPE-ARCH SECTION A-A
NOTES:
1.
2.
3.
4.
5.
6.
PAVE INVERTS OF THE STEEL PIPES AND PIPE ARCHES WITH CLASS A CEMENT
THE PERIPHERY OF PIPES AND APPROXIMATELY 40% OF THE PERIPHERY OF PIPE
ABOVE THE CREST OF CORRUGATIONS.
PIPE ARCHES.
PLACE CONCRETE PAVING AFTER COMPLETION OF FILL OVER THE PIPES AND
BEFORE THE PLACEMENT OF CONCRETE, THOROUGHLY CLEAN AND DRY THE STEEL
CULVERT SURFACE TO BE PAVED AND REMOVE ALL FOREIGN MATERIAL AND
CORROSIVE LOOSE SCALE.
REINFORCE CONCRETE PAVING WITH GALVANIZED OR EPOXY COATED STEEL WIRE
GALVANIZED BOLTS WHICH ARE BOLTED TO THE STEEL CULVERT INVERT AND
FOLD STEEL WIRE FABRIC UNDER UPSTREAM AND DOWNSTREAM LIPS OF THE
FINISH CONCRETE PAVING TO A SMOOTH SURFACE. AFTER INITIAL SET, COVER
CONCRETE SURFACE WITH A HEAVY SPRAY OR MOP COAT OF EMULSIFIED ASPHALT
CLASS E-1. CURE CONCRETE FOR A MINIMUM OF 48 HOURS BEFORE WATER IS
PERMITTED TO FLOW ON THE PAVED INVERT.
90^
CLASS A CEMENT
CONCRETE PAVING
A
A
A
AANCHOR BOLT
STEEL
STRUCTURAL
PLATE
TOP OF CONCRETE PAVING
GALVANIZED UNCOATED
152 x 152 - MW 18.7 x MW 18.7
7.11
6.32
5.54
4.79
4.32
3.56
2.82
7.02
6.23
5.45
4.69
4.18
3.42
2.66
PLATE THICKNESS
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
PLATE THICKNESS mm (IN.)
(0.280)
(0.249)
(0.218)
(0.188)
(0.170)
(0.140)
(0.111)
(0.2758)
(0.2451)
(0.2145)
(0.1838)
(0.1644)
(0.1345)
(0.1046)
100 (4") (TYP.)
LONGITUDINALLY AND TRANSVERSELY
100 (4") (TYP.)
75
(3
")
50 (2")
11
5 (4
�")
(6 x 6 - W2.9 x W2.9)
STEEL WIRE FABRIC
CONCRETE WITH MAXIMUM COARSE AGGREGATE SIZE OF 20 mm (�"). COVER 25% OF
ARCHES, INCLUDING THE CORNER PLATES, TO A CONCRETE THICKNESS OF 75 mm (3")
FABRIC AND PLACE IT 50 mm (2") BELOW THE CONCRETE FACE WITH 100 mm (4")CLEARANCE
FROM THE EDGES OF CONCRETE PAVING. FASTEN STEEL WIRE FABRIC TO 19.1 mm (�")|
SPACED 600 mm (24") ON CENTER LONGITUDINALLY AND TRANSVERSELY.
LONGITUDINALLY AND TRANSVERSELY. MINIMUM LAP LENGTH IS 200 mm (8").
CULVERT AT LEAST 300 mm (12").
1
3
5
7
8
10
12
PLATE
GAGE NO.
*
* APPLIES TO ENGLISH UNITS ONLY
152 x 152 MW 18.7 x MW 18.7
(6 x 6 - W2.9 x W2.9) GALV.
OR EPOXY COATED STEEL WIRE
FABRIC PLACED AT 50 mm (2")
BELOW THE PAVING SURFACE
BOLT SPACED 600 (24")
19.1 (�")| GALVANIZED STEEL
75 (3") THICK FROM CORRUGATION CREST
125 (5") THICK FROM CORRUGATION VALLEY
19.1 (�")| GALVANIZED STEEL
GENERAL NOTE:
ALL DIMENSIONS ARE IN MILLIMETERS UNLESS
OTHERWISE NOTED. U.S. CUSTOMARY UNITS IN
( ) PARENTHESES.
USE STEEL WIRE FABRIC OF 4.88 mm (#6 GAGE) WIRE AT 152 mm (6") CENTERS
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010
![Page 5: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/5.jpg)
SHEET 5 OF 7
BD-635M
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
DESIGN TABLES
FOR METAL CULVERTS
TOP PLATE THICKNESS 0.111 IN.
INVERT PLATE THICKNESS (IN.)
DIAMETER
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
FT.
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
72
84
96
108
120
132
144
156
168
180
192
204
216
228
240
0.168
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
0.111 0.249 0.188 0.170 0.140 0.280 0.218 0.2180.188 0.170 0.280 0.2180.188 0.2800.188 -0.2180.218 0.249 - 0.2490.2490.249 -0.280 0.280 0.280
TOP PLATE THICKNESS 0.280 IN.TOP PLATE THICKNESS 0.249 IN.TOP PLATE THICKNESS 0.218 IN.TOP PLATE THICKNESS 0.188 IN.TOP PLATE THICKNESS 0.170 IN.TOP PLATE THICKNESS 0.140 IN.
NOTES:
90^
* *
*
INVERT PLATES
ONE GAGE LIGHTER THAN INVERT PLATES
BUT NO LIGHTER THAN TOP PLATES.
TOP PLATES
(IN.)
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
42
35
30
26
23
21
19
17
16
15
14
60
50
43
33
38
30
27
25
23
21
20
19
17
79
66
56
49
44
39
36
33
30
28
26
24
23
22
20
88
73
63
55
49
44
40
36
34
31
29
27
26
24
23
22
103
86
74
64
57
51
47
43
39
37
34
32
30
28
27
25
118
98
84
73
65
59
53
49
45
42
39
36
34
32
31
29
133
111
95
83
74
66
60
55
51
47
44
41
39
37
35
33
(BACKFILL UNIT WEIGHT = 140 LBS. PER CU. FT.)
STEEL STRUCTURAL PLATE PIPE THICKNESS REQUIREMENTS
WITH MINIMUM PREDICTED METAL LOSS CONDITION
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
GENERAL NOTE:
9. FOR CONVERSION OF GAGE TO THICKNESS TABLE SEE SHEET 4.
8. PIPES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE. IF LIVE
LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL HEIGHT LESS THAN
8 FT. OR THE SPAN LENGTH, WHICHEVER IS GREATER, THE DESIGN OF THE TOP PLATE
MUST BE CHECKED FOR WORST LIVE LOAD PLUS DEAD LOAD CONDITION.
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
BASED ON THE METAL LOSS OF 2 MILS PER YEAR.
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
SERVICE LIFE OF 35 YEARS.
5. ALL STEEL PLATES ARE 6"x 2" CORRUGATION AND MUST MEET THE
REQUIREMENTS OF AASHTO M167 AND MUST BE GALVANIZED.
FOR SHEETS 5 THROUGH 7, ALL DIMENSIONS ARE IN U.S. CUSTOMARY
UNITS (FEET AND INCHES) UNLESS OTHERWISE NOTED. FOR METRIC
UNIT DETAILS, SEE SHEETS 1 THROUGH 3. SHEET 4 IS IN DUAL UNITS.
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
CORROSIVE ENVIRONMENTS.
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
408 ARE USED.
4. INVERT PLATES ARE THE PLATES AT THE LOWER 90^ OF THE PIPE
CIRCUMFERENCE. THE PLATES LOCATED BETWEEN THE INVERT PLATES AND
THE HORIZONTAL DIAMETER LINE OF THE PIPE MAY BE ONE GAGE
LIGHTER THAN THE INVERT PLATES, BUT NO LIGHTER THAN THE UPPER TOP
PLATES. (SEE SKETCH)
REFERENCE DRAWINGS
ENDWALL DETAILS FOR METAL CULVERTS
GABION ENDWALL DETAILS
BD-631M
BD-634M
10. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
BRIDGE ENGINEER APPROVAL.
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
HEIGHT
FILL
MAX.
(FT.)
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
12" AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 3 F.T., A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDED SEPT. 20, 2010SEPT. 20, 2010
STANDARD
![Page 6: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/6.jpg)
SHEET 6 OF 7
BD-635M
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
TOP
PLATE
(IN.)
SIZE
SPAN RISE
6-1
6-4
6-9
7-0
7-3
7-8
7-11
8-2
8-7
8-10
9-4
9-6
9-9
10-3
10-8
10-11
11-5
4-7
4-9
4-11
5-1
5-3
5-5
5-7
5-9
5-11
6-1
6-3
6-5
6-7
6-9
6-11
7-1
7-3
MINIMUM
REQUIRED
THICKNESS
0.111
(FT.-IN.) (FT.-IN.)
0.140 0.111 0.249 0.170 0.140 0.111 0.249 0.170 0.111 0.249
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
SPAN RISE
0.111
(FT.-IN.) (FT.-IN.)
0.140 0.111 0.249 0.170 0.140 0.111 0.249 0.170 0.111 0.249 0.18811-7
11-10
12-4
12-6
12-8
12-10
13-5
13-11
14-1
14-3
14-10
15-4
15-6
15-8
15-10
10-1
9-11
9-10
9-7
9-5
9-3
9-1
8-11
8-9
8-7
8-1
7-11
7-9
7-7
7-5
8-4
8-5
0.170
2TSF 3TSF 4TSF 2TSF 3TSF 4TSF
TOP
PLATE
(IN.)
MINIMUM
REQUIRED
THICKNESS
SIZE
CORNER BEARING PRESSURE CORNER BEARING PRESSURE
INVERT PLATES
TOP PLATES
0.170 0.188
16-5
16-7
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
14
13
12
12
11
11
10
10
7
7
7
9
9
6
6
6
5
21
20
19
18
17
16
16
15
14
14
13
13
13
12
12
11
10
28
27
25
24
23
22
21
20
19
19
18
18
17
16
16
15
15
5 10
10
9
9
9
9
8
8
7
7
7
6
6
6
5
14
14
13
13
13
13
12
11
11
11
10
10
10
10
9
9
9
6
6
(BACKFILL UNIT WEIGHT = 140 LBS. PER CU. FT.)
4
STEEL STRUCTURAL PLATE PIPE-ARCH THICKNESS REQUIREMENTS
WITH MINIMUM PREDICTED METAL LOSS CONDITION (18" CORNER RADIUS)
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
NOTES:
9. FOR CONVERSION OF GAGE TO THICKNESS TABLE SEE SHEET 4.
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
BASED ON THE METAL LOSS OF 2 MILS PER YEAR.
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
SERVICE LIFE OF 35 YEARS.
8. PIPE-ARCHES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE.
IF LIVE LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL
HEIGHT LESS THAN 8 FT. OR THE SPAN LENGTH, WHICHEVER IS GREATER,
THE DESIGN OF THE TOP PLATE MUST BE CHECKED FOR WORST LIVE LOAD
PLUS DEAD LOAD CONDITION.
5. ALL STEEL PLATES ARE 6"x 2" CORRUGATION AND MUST MEET THE
REQUIREMENTS OF AASHTO M167 AND MUST BE GALVANIZED.
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
CORROSIVE ENVIRONMENTS.
4. INVERT PLATES INCLUDE THE CORNER PLATES OF THE PIPE-ARCHES.
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
408 ARE USED.
BRIDGE ENGINEER APPROVAL.
10. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
12" AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 3 F.T., A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010
STANDARD
DESIGN TABLES
FOR METAL CULVERTS
![Page 7: STEEL STRUCTURAL PLATE PIPE THICKNESS … · sheet 3 of 7 commonwealth of pennsylvania department of transportation bureau of design invert plate thickness (mm) 50-years design life](https://reader031.vdocument.in/reader031/viewer/2022022523/5b32f7f87f8b9a81728cfdd2/html5/thumbnails/7.jpg)
SHEET 7 OF 7
COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
BUREAU OF DESIGN
STANDARD
DESIGN TABLES
FOR METAL CULVERTS
BD-635M
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
INVERT PLATE THICKNESS (IN.)
50-YEARS
DESIGN LIFE
100-YEARS
DESIGN LIFE
TOP
PLATE
(IN.)
SIZE
SPAN RISE
MINIMUM
REQUIRED
THICKNESS
0.111
(FT.-IN.) (FT.-IN.)
0.140 0.111 0.249 0.170 0.111 0.111
2TSF 3TSF 4TSF
CORNER BEARING PRESSURE
13-3
13-6
14-0
14-2
14-5
14-11
15-4
15-7
15-10
16-3
16-6
17-0
17-2
17-5
17-11
18-1
18-7
19-3
19-6
19-8
19-11
20-7
20-5
18-9
13-2
13-0
12-10
12-8
12-6
12-4
12-2
12-0
11-10
11-8
11-6
11-4
11-2
11-0
10-10
10-8
10-6
10-4
10-2
10-0
9-10
9-6
9-4
0.140 0.140
0.170 0.280 0.188
0.140
0.170 0.280 0.218
0.140
INVERT PLATES
TOP PLATES
9-8
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
WITHOUT
PAVED
INVERT
WITH
PAVED
INVERT
10
10
9
9
9
8
8
8
8
7
7
7
7
6
6
6
5
5
5
5
4
4
16
16
15
15
15
14
13
13
13
13
12
12
12
12
11
11
11
11
10
10
10
10
9
9
13
13
22
21
21
20
20
19
19
18
18
18
17
17
16
16
16
14
14
14
14
7
6
15
15
15
(BACKFILL UNIT WEIGHT = 140 LBS. PER CU. FT.)
STEEL STRUCTURAL PLATE PIPE-ARCH THICKNESS REQUIREMENTS
WITH MINIMUM PREDICTED METAL LOSS CONDITION (31" CORNER RADIUS)
NOTE: EITHER ALL METRIC OR ALL ENGLISH VALUES
MUST BE USED ON PLANS. METRIC AND
ENGLISH VALUES SHOWN MAY NOT BE MIXED.
NOTES:
2. THE "INVERT PLATE THICKNESS" IS COMPUTED IN ACCORDANCE WITH THE
SERVICE LOAD DESIGN PROCEDURES AS PER AASHTO SPECIFICATIONS, BUT
WITH A MINIMUM SAFETY FACTOR OF 1.3 AT THE END OF A DESIGN LIFE
BASED ON THE METAL LOSS OF 2 MILS PER YEAR.
3. THE CONCRETE PAVED INVERT IS ASSUMED TO HAVE AN EQUIVALENT
SERVICE LIFE OF 35 YEARS.
9. FOR CONVERSION OF GAGE TO THICKNESS TABLE SEE SHEET 4.
8. PIPE-ARCHES ARE DESIGNED FOR THE FILL HEIGHT INDICATED IN THIS TABLE.
IF LIVE LOAD NEEDS TO BE PERMITTED DURING CONSTRUCTION FOR FILL
HEIGHT LESS THAN 8 FT. OR THE SPAN LENGTH, WHICHEVER IS GREATER,
THE DESIGN OF THE TOP PLATE MUST BE CHECKED FOR WORST LIVE LOAD
PLUS DEAD LOAD CONDITION.
5. ALL STEEL PLATES ARE 6"x 2" CORRUGATION AND MUST MEET THE
REQUIREMENTS OF AASHTO M167 AND MUST BE GALVANIZED.
REFER TO DM4, FIGURE 12.6.9.5P-2 FOR
CORROSIVE ENVIRONMENTS.
4. INVERT PLATES INCLUDE THE CORNER PLATES OF THE PIPE-ARCHES.
7. THESE DESIGN VALUES ARE BASED UPON ASSUMPTION THAT THE EXCAVATION,
BACKFILL AND CONSTRUCTION METHODS IN RC STANDARDS AND PUBLICATION
408 ARE USED.
BRIDGE ENGINEER APPROVAL.
10. PIPE MAY NOT BE PLACED WITHIN THE PAVEMENT STRUCTURE WITHOUT CHIEF
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
MAX.
FILL
HEIGHT
(FT.)
1. THE "MAX. FILL HEIGHT" IS COMPUTED IN ACCORDANCE WITH THE LOAD
FACTOR DESIGN PROCEDURES AS PER 1992 AASHTO SPECIFICATIONS.
6. MINIMUM FILL HEIGHT FOR DESIGN LOAD IS SPAN/8 BUT NOT LESS THAN
12" AND IS MEASURED FROM TOP OF RIGID PAVEMENT OR BOTTOM
OF FLEXIBLE PAVEMENT. FOR MINIMUM FILL AND COVER REQUIREMENTS
(AND DIAGRAMS DEFINITION OF COVER) SEE RC-30. FOR PIPE UNDER
PAVEMENT STRUCTURE PLACE PIPE AT THE GREATER DEPTH OF FILL AND
COVER. WHEN FILL HEIGHT IS LESS THAN 3 F.T., A SPECIAL DESIGN
CONSIDERING THE MOST CRITICAL LOAD WILL BE NEEDED. A SPECIAL
APPROVAL FROM THE CHIEF BRIDGE ENGINEER WILL BE REQUIRED IF THE
PIPE-ARCH IS TO BE DESIGNED FOR SUCH PERMANENT CONDITION.
CHIEF BRIDGE ENGINEER
RECOMMENDED
DIRECTOR, BUREAU OF DESIGN
RECOMMENDEDSEPT. 20, 2010 SEPT. 20, 2010