COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF …

CHANGE 2

DETAILING DIMENSION C

A

VARIES

J H

S E I R A V

D

D

WHERE SLOPE DIFFERS FROM 45?

D

DIMENSIONS H AND K MUST

BE SHOWN.

K

BAR BENDING DETAILS

UNLESS OTHERWISE NOTED, DIAMETER D IS THE SAME FOR ALL BENDS AND HOOKS ON A BAR.

*6db OR

2?" MIN.

D

A d b D

DETAILING DIMENSION

A

** 6db OR

2?" MIN.

H D db D

90? HOOKS

135? HOOKS

STIRRUPS

(TIES SIMILAR) D = 4db FOR #3 THROUGH #5 BARS D = 6db FOR #6 BARS

RECOMMENDED STIRRUP AND TIE HOOK DIMENSIONS

* 6dbFOR #3, #4, AND #5

12db FOR #6.

* * FOR SEISMIC HOOKS USE 6bd OR 3" MIN.

BAR D

SIZE

#3 #4 #5 #6

1?" 2"

2?" 4?"

GRADE 60 90? HOOK

135? HOOK

A

A

APPROXIMATE

H

4" 4?"

6" 1'-0"

4" 4?" 5?"

8"

2?" 3"

3" 4?"

GRADE 60

BAR SIZE

SEISMIC STIRRUP AND TIE

135? HOOK

D

A

APPROXIMATE

H

#3 #4 #5 #6

1?" 2"

2?" 4?"

4," 4?" 5?"

8"

3" 3" 3" 4?"

GENERAL NOTES:

STANDARD REINFORCEMENT BARS

BAR SIZE

WEIGHT (LBS./FT.)

#3 #4 #5 #6 #7 #8 #9 #10 #11 #14 #18

.376 .668 1.043 1.502 2.044 2.670 3.400 4.303 5.313 7.650 13.600

NOMINAL DIAMETER (INCHES)

.375 .500 .625 .750 .875 1.000 1.128 1.270 1.410 1.693 2.257

NOMINAL CROSS SECTIONS AREA (SQ. IN.)

NOMINAL PERIMETER

(INCHES)

.11 .20 .31 .44 .60 .79 1.00 1.27 1.56 2.25 4.00

1.178 1.571 1.963 2.356 2.749 3.142 3.544 3.990 4.430 5.320 7.090

RECOMMENDED END HOOK DIMENSIONS

GRADE 60

1. PROVIDE MATERIAL AND WORKMANSHIP IN ACCORDANCE WITH THE APPROPRIATE SPECIFICATIONS AS OUTLINED IN THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION PUBLICATION 408 SECTION 1002.

2. DESIGNATE REINFORCEMENT BARS AS FOLLOWS TO AVOID ANY MISINTERPRETATION.

(A) REFER DEFORMED REINFORCEMENT BAR SIZES BY NUMBER, FOR EXAMPLE, #3, #4, #5, ETC.

(B) INDICATE PLAIN REINFORCEMENT BAR SIZES BY DIAMETER IN FRACTIONS OF AN INCH, FOR EXAMPLE, ..."|, ?"|, "|, ETC.

(C) INDICATE STEEL WIRE FABRIC BY A LETTER (W FOR SMOOTH WIRE, D FOR DEFORMED WIRE) FOLLOWED BY A NUMBER WHICH INDICATES THE AREA OF THE WIRE IN HUNDREDTHS OF A SQUARE INCH, FOR EXAMPLE, W16 OR D16.

(D) INDICATE SMOOTH STEEL WIRE FABRIC THUS: WWF6x9-W10xW12 (DENOTES LONGITUDINAL WIRES ARE 6 INCHES ON CENTERS, TRANSVERSE WIRES ARE 9 INCHES ON CENTERS). THE AREA OF THE LONGITUDINAL WIRE IS 0.10 SQUARE INCHES AND THE AREA OF THE TRANSVERSE WIRE IS 0.12 SQUARE INCHES.) FOR DEFORMED WELDED WIRE FABRIC, DESIGNATE WWF6x9-D10xD12.

(E) ALL REINFORCEMENT DIMENSIONS ARE MEASURED OUT-TO-OUT OF THE BAR EXCEPT THE "A" DIMENSION ON STANDARD 180? AND 135? HOOKS.

3. SPLICING & LAPPING:

(A) SPLICE BARS ONLY AS SHOWN ON THE DESIGN DRAWINGS OR AS AUTHORIZED BY THE ENGINEER. WHEN LAP SPLICING IS SHOWN ON THE DESIGN DRAWINGS, LAP THE REINFORCEMENT BARS FOR A LENGTH ACCORDING TO AASHTO LRFD ARTICLE 5.10.8.4 AND SECURELY WIRE TOGETHER.

(B) SPLICE WELDED WIRE FABRIC IN ACCORDANCE WITH AASHTO LRFD ARTICLE 5.10.8.5.

(C) INCREASE THE BAR LAPS BY 20% FOR A THREE BAR BUNDLE. ADD 33% FOR A FOUR BAR BUNDLE. DO NOT OVERLAP INDIVIDUAL BAR SPLICES WITHIN THE BUNDLE.

4. CONFORM REINFORCEMENT BARS TO THE DIMENSIONS SHOWN ON THE DRAWINGS AND WITHIN THE FABRICATION TOLERANCES AS SHOWN IN THE CURRENT "MANUAL OF STANDARD PRACTICE FOR REINFORCED CONCRETE CONSTRUCTION" AS PUBLISHED BY THE CONCRETE REINFORCING STEEL

BAR SIZE

90? HOOKS

D

A

180? HOOKS

D

A

J

#3 #4 #5 #6 #7 #8 #9 #10 #11 #14 #18

2," 3"

3" 4?" 5,"

6" 9?" 10" 12" 18," 24"

6" 8" 10" 1'-0" 1'-2" 1'-4" 1'-7" 1'-10" 2'-0" 2'-7" 3'-5"

2," 3"

3" 4?" 5,"

6" 9?" 10" 12" 18," 24"

5" 6" 7" 8" 10" 11" 1'-3" 1'-5" 1'-7" 2'-3" 3'-0"

3" 4" 5" 6" 7" 8" 11" 1'-1," 1'-2" 1'-9" 2'-4?"

DETAILING DIMENSION

db

D A

DETAILING

A

DIMENSION

db

J

4db OR 2?" MIN.

COMMON STOCK STYLES OF WELDED WIRE FABRIC

STYLE

DESIGNATION

ROLLS 6x6-W1.4xW1.4 6x6-W2.1xW2.1 6x6-W2.9xW2.9 6x6-W4.0xW4.0 4x4-W1.4xW1.4 4x4-W2.1xW2.1 4x4-W2.9xW2.9 4x4-W4.0xW4.0

SHEETS 6x6-W2.9xW2.9 6x6-W4.0xW4.0 6x6-W5.5xW5.5 4x4-W4.0xW4.0

STEEL AREA SQ. IN. PER FT. LONGIT. TRANS.

WEIGHT APPROX. LBS. PER 100 S.F.

.028 .040 .058 .080 .042 .060 .087 .120

.028 .040 .058 .080 .042 .060 .087 .120

21 29 42 58 31 43 62 85

.058 .080 .110 .120

.058 .080 .110 .120

42 58 80 85

90? HOOKS

12d b

180? HOOKS

D = 6db FOR #3 THROUGH #8 D = 8db FOR #9, #10, AND #11 D = 10db FOR #14 AND #18

COMMONWEALTH OF PENNSYLVANIA

DEPARTMENT OF TRANSPORTATION

BUREAU OF PROJECT DELIVERY

BARS THAT ARE REQUIRED TO BE BENT TO A LARGER RADIUS THAN SHOWN IN THE FOLLOWING TABLE MAY BE BENT IN THE FIELD.

#4 #5 #6 #7

15 FT. 25 FT. 40 FT. 60 FT.

#8 #9 #10 #11

80 FT. 110 FT. 130 FT. 150 FT.

#14 & #18 - ALL BENDING PREFABRICATED.

STANDARD REINFORCEMENT BAR FABRICATION DETAILS

RECOMMENDED JAN. 31, 2019 RECOMMENDED JAN. 31, 2019

SHEET 1 OF 3

CHIEF BRIDGE ENGINEER

ACTING DIR. BUR. OF PROJECT DELIVERY

BC-736M

DEVELOPMENT LENGTH AND LAP SPLICE LENGTH OF DEFORMED BARS IN COMPRESSION

FOR REINFORCING STEEL GRADE 60 AASHTO LRFD SPECIFICATIONS, ARTICLES 5.10.8.2.2a AND 5.10.8.4.5a

BAR SIZE

DIA. OF

BAR

db (IN.)

f' =3,000 PSI C (CLASS A)

DEVELOP. LENGTH (IN.)

SPLICE LENGTH

(IN.)

#3 #4 #5 #6 #7 #8 #9 #10 #11 #14 #18

0.375 0.500 0.625 0.750 0.875 1.000 1.128 1.270 1.410 1.693 2.257

9 11 14 17 20 22 25 28 31 37 50

12 15 19 23 27 30 34 39 43 51 68

f'C=3,500 PSI (CLASS AA)

DEVELOP. LENGTH (IN.)

8 11 13 16 18 21 23 26 29 35 46

SPLICE LENGTH

(IN.)

12 15 19 23 27 30 34 39 43 51 68

f' =4,000 PSI C

(CLASS AAA OR AAAP)

f' =4,500 PSI C

DEVELOP. LENGTH (IN.)

8 10 12 15 17 19 22 24 27 32 43

SPLICE LENGTH

(IN.)

12 15 19 23 27 30 34 39 43 51 68

DEVELOP. LENGTH (IN.)

8 9 12 14 16 18 21 23 26 31 41

SPLICE LENGTH

(IN.)

12 15 19 23 27 30 34 39 43 51 68

NOTE: A FACTOR OF 0.75 CAN BE APPLIED IF THE REINFORCEMENT IS ENCLOSED WITHIN A SPIRAL COMPOSED OF BARS NOT LESS THAN ," IN DIAMETER AND SPACED AT NOT MORE THAN 4" PITCH. BUT THE DEVELOPMENT LENGTH CANNOT BE LESS THAN 8" AND SPLICE LENGTH CANNOT BE LESS THAN 12".

12 d b

DEVELOPMENT LENGTH OF STANDARD HOOKS IN TENSION

BAR SIZE

#3 #4 #5 #6 #7 #8 #9 #10 #11 #14 #18

FOR REINFORCING STEEL GRADE 60 AASHTO LRFD SPECIFICATION, ARTICLE 5.10.8.2.4a

DIA. OF BAR

db (IN.)

f' =3,000 PSI C dh (IN.)

f' C=3,500 PSI f'C=4,000 PSI

dh (IN.)

dh (IN.)

f' C=4,500 PSI dh (IN.)

db

CRITICAL SECTION

0.375 0.500 0.625 0.750 0.875 1.000 1.128 1.270 1.410 1.693 2.257

9 11 14 17 20 22 25 28 31 38 50

8 11 13 16 18 21 23 26 29 35 46

8 10 12 15 17 19 22 25 27 33 43

7 9 12 14 16 18 21 23 26 31 41

db

4db OR 2?" MIN. 4 db #3 THROUGH #8 5db #9,#10 AND #11

6 db #14 AND #18 dh

NOTE:

1. A FACTOR OF 0.8 CAN BE APPLIED FOR #11 BAR AND SMALLER, IF THE SIDE COVER (NORMAL TO PLANE OF HOOK )IS NOT LESS THAN 2?", AND FOR 90? HOOK, COVER ON BAR EXTENSION BEYOND HOOK IS NOT LESS THAN 2".

2. INCREASE THE DEVELOPMENT LENGTH, dh, BY 1.2 FOR EPOXY COATED HOOKS IN TENSION.

COMMONWEALTH OF PENNSYLVANIA

DEPARTMENT OF TRANSPORTATION

BUREAU OF PROJECT DELIVERY

STANDARD REINFORCEMENT BAR FABRICATION DETAILS

RECOMMENDED JAN. 31, 2019 RECOMMENDED JAN. 31, 2019

SHEET 2 OF 3

CHIEF BRIDGE ENGINEER

ACTING DIR. BUR. OF PROJECT DELIVERY

BC-736M

DEVELOPMENT LENGTH AND LAP SPLICE LENGTH OF DEFORMED BARS IN TENSION

AASHTO LRFD SPECIFICATIONS, ARTICLES 5.10.8.2.1, 5.10.8.2.2 AND 5.10.8.4.5a

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

TABLE A

f'c = 3000 PSI (CLASS A) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

Ab

#3 0.11 13 #4 0.20 17 #5 0.31 21 #6 0.44 25 #7 0.60 30 #8 0.79 34 #9 1.00 42 #10 1.27 51 #11 1.56 62 #14 2.25 84 #18 4.00 136

A

13 17 21 25 30 34 42 51 62

B

A

17 22 28 33 38 44 54 67 80

17 22 28 33 38 44 54 67 80 109 176

17 22 28 33 38 44 54 67 80

B

22 29 36 43 50 57 70 87 104

f'c = 3500 PSI (CLASS AA) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 12 #4 0.20 16 #5 0.31 20 #6 0.44 24 #7 0.60 27 #8 0.79 31 #9 1.00 39 #10 1.27 48 #11 1.56 57 #14 2.25 78 #18 4.00 126

A

12 16 20 24 27 31 39 48 57

B

A

16 21 26 31 36 41 50 62 74

16 21 26 31 36 41 50 62 74 101 163

16 21 26 31 36 41 50 62 74

B

21 27 33 40 46 53 65 80 96

f'c = 4000 PSI (CLASS AAA OR AAAP) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 12 #4 0.20 15 #5 0.31 18 #6 0.44 22 #7 0.60 26 #8 0.79 29 #9 1.00 36 #10 1.27 45 #11 1.56 53 #14 2.25 73 #18 4.00 118

A

12 15 18 22 26 29 36 45 53

B

A

16 19 24 29 33 38 47 58 69

16 19 24 29 33 38 47 58 69 95 153

16 19 24 29 33 38 47 58 69

B

21 25 31 37 43 49 61 75 90

f'c = 4500 PSI GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 12 #4 0.20 14 #5 0.31 17 #6 0.44 21 #7 0.60 24 #8 0.79 28 #9 1.00 34 #10 1.27 42 #11 1.56 50 #14 2.25 69 #18 4.00 111

A

12 14 17 21 24 28 34 42 50

B

A

16 18 23 27 31 36 44 55 65

16 18 23 27 31 36 44 55 65 89 144

16 18 23 27 31 36 44 55 65

B

21 23 29 35 41 46 57 71 85

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

TABLE B

f'c = 3000 PSI (CLASS A) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

Ab

#3 0.11 19 #4 0.20 25 #5 0.31 32 #6 0.44 38 #7 0.60 44 #8 0.79 50 #9 1.00 62 #10 1.27 77 #11 1.56 92 #14 2.25 126 #18 4.00 204

A

19 25 32 38 44 50 62 77 92

B

A

25 33 41 49 57 65 81 100 120

25 33 41 49 57 65 81 100 120 164 264

25 33 41 49 57 65 81 100 120

B

32 43 53 64 74 85 105 130 155

f'c = 3500 PSI (CLASS AA) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 18 #4 0.20 24 #5 0.31 29 #6 0.44 35 #7 0.60 41 #8 0.79 47 #9 1.00 58 #10 1.27 71 #11 1.56 85 #14 2.25 117 #18 4.00 188

A

18 24 29 35 41 47 58 71 85

B

A

23 31 38 46 53 61 75 92 111

23 31 38 46 53 61 75 92 111 152 245

23 31 38 46 53 61 75 92 111

B

30 40 49 59 69 79 97 120 144

f'c = 4000 PSI (CLASS AAA OR AAAP) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 17 #4 0.20 22 #5 0.31 27 #6 0.44 33 #7 0.60 38 #8 0.79 44 #9 1.00 54 #10 1.27 67 #11 1.56 80 #14 2.25 109 #18 4.00 176

A

17 22 27 33 38 44 54 67 80

B

A

22 29 36 43 50 57 70 86 104

22 29 36 43 50 57 70 86 104 142 229

22 29 36 43 50 57 70 86 104

B

28 37 46 55 64 74 91 112 135

f'c = 4500 PSI GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 16 #4 0.20 21 #5 0.31 26 #6 0.44 31 #7 0.60 36 #8 0.79 41 #9 1.00 51 #10 1.27 63 #11 1.56 75 #14 2.25 103 #18 4.00 166

A

16 21 26 31 36 41 51 63 75

B

A

20 27 34 40 47 53 66 82 98

20 27 34 40 47 53 66 82 98 134 216

20 27 34 40 47 53 66 82 98

B

26 35 44 52 61 69 86 106 127

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

TABLE C

f'c = 3000 PSI (CLASS A) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

Ab

#3 0.11 15 #4 0.20 20 #5 0.31 25 #6 0.44 30 #7 0.60 35 #8 0.79 40 #9 1.00 50 #10 1.27 62 #11 1.56 74 #14 2.25 101 #18 4.00 163

A

15 20 25 30 35 40 50 62 74

B

A

20 26 33 39 46 52 65 80 96

20 26 33 39 46 52 65 80 96 131 212

20 26 33 39 46 52 65 80 96

B

26 34 43 51 60 68 84 104 124

f'c = 3500 PSI (CLASS AA) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 14 #4 0.20 19 #5 0.31 24 #6 0.44 28 #7 0.60 33 #8 0.79 37 #9 1.00 46 #10 1.27 57 #11 1.56 68 #14 2.25 94 #18 4.00 151

A

14 19 24 28 33 37 46 57 68

B

A

19 25 31 37 43 49 60 74 89

19 25 31 37 43 49 60 74 89 121 196

19 25 31 37 43 49 60 74 89

B

24 32 40 47 55 63 78 96 115

f'c = 4000 PSI (CLASS AAA OR AAAP) GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 13 #4 0.20 18 #5 0.31 22 #6 0.44 26 #7 0.60 31 #8 0.79 35 #9 1.00 43 #10 1.27 53 #11 1.56 64 #14 2 (3 .2)5 87 #18 4.00 141

A

13 18 22 26 31 35 43 53 64

B

A

17

17

23

23

29

29

34

34

40

40

45

45

56

56

69

69

83

83

(3) 114

183

17 23 29 34 40 45 56 69 83

B

22 30 37 44 52 59 73 90 108

f'c = 4500 PSI GRADE 60

ALL BARS EXCEPT HORIZONTAL BARS

(SEE NOTE 3)

HORIZONTAL BARS (SEE NOTE 3)

LENGTH OF LAP SPLICE (IN.)

LENGTH OF LAP SPLICE (IN.)

BAR SIZE BAR CROSS

SECTION AREA (SQ. IN.) DEVELOP. LENGTH d (IN.) DEVELOP. LENGTH d (IN.)

Ab

#3 0.11 13 #4 0.20 17 #5 0.31 21 #6 0.44 25 #7 0.60 29 #8 0.79 33 #9 1.00 41 #10 1.27 50 #11 1.56 60 #14 2.25 83 #18 4.00 133

A

13 17 21 25 29 33 41 50 60

B

A

16 22 27 32 38 43 53 65 78

16 22 27 32 38 43 53 65 78 107 173

16 22 27 32 38 43 53 65 78

B

21 28 35 42 49 56 69 85 102

NOTES FOR DEFORMED BARS IN TENSION

(TABLES A, B AND C):

1. DEVELOPMENT LENGTH:

REFER TO AASHTO/LRFD FOR APPLICABLE MODIFICATION FACTORS.

TABLES ARE BASED ON NORMAL-WEIGHT CONCRETE. DEVELOPMENT LENGTHS ARE BASED ON 2 INCHES OF COVER. THE DEPTH OF COVER AND HALF THE THICKNESS OF REINFORCEMENT IS ASSUMED TO BE LESS THAN HALF THE CENTER TO CENTER SPACING OF THE REINFORCEMENT.

2. LAP SPLICE LENGTH: LAP SPLICE LENGTHS ARE BASED ON 2 INCHES OF COVER. THE DEPTH OF COVER AND HALF THE THICKNESS OF REINFORCEMENT IS ASSUMED TO BE LESS THAN HALF THE CENTER TO CENTER SPACING OF THE REINFORCEMENT.

CLASS A SPLICES MAY BE USED WHERE THE AREA OF REINFORCEMENT PROVIDED IS AT LEAST TWICE THAT REQUIRED BY ANALYSIS OVER THE ENTIRE LENGTH OF THE LAP SPLICE AND ONE-HALF OR LESS OF THE TOTAL REINFORCEMENT IS SPLICED WITHIN THE REQUIRED LAP SPLICE LENGTH.

ASSUME CLASS B SPLICES IN THE ABSENCE OF DESIGN ANALYSIS.

3. HORIZONTAL REINFORCEMENT HAS MORE THAN 12 INCHES OF FRESH CONCRETE CAST BELOW THE REINFORCEMENT.

SPLICE LENGTH OF DEFORMED BARS IN TENSION

UNCOATED REBARS USE TABLE A

EPOXY COATED REBARS

USE TABLE B WHEN : COVER IS < 3x BAR DIA. OR CLEAR SPACING BETWEEN BARS IS < 6x BAR DIA.

(INCLUDES 50% INCREASE IN LAP SPLICE LENGTH )

USE TABLE C FOR ALL OTHER CASES

(INCLUDES 20% INCREASE IN LAP SPLICE LENGTH )

COMMONWEALTH OF PENNSYLVANIA

DEPARTMENT OF TRANSPORTATION

BUREAU OF PROJECT DELIVERY

STANDARD REINFORCEMENT BAR FABRICATION DETAILS

RECOMMENDED JAN. 31, 2019 RECOMMENDED JAN. 31, 2019

SHEET 3 OF 3

CHIEF BRIDGE ENGINEER

BC-736M ACTING DIR. BUR. OF PROJECT DELIVERY

 ................
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