Rev. 6-13-96
THREADED TIE BAR ASSEMBLIES
703-B-053
The Standard Specifications are revised as follows:
SECTION 703, LINE 5, INSERT AS FOLLOWS:
the plans or as directed. This work shall also consist of placing threaded tie bar assemblies with the reinforcing steel at the locations as shown on the plans.
SECTION 703, AFTER LINE 98, INSERT AS FOLLOWS:
MINIMUM SPLICE LENGTH, Millimeters
GRADE AND BAR SIZE |
MINIMUM PULLOUT LOAD, Newtons |
SPACING < 150 mm |
SPACING > 150 mm |
||
PLAIN STEEL |
EPOXY COATED STEEL |
PLAIN STEEL |
EPOXY COATED STEEL |
||
GRADE 300 STEEL | |||||
10M | 30,000 | 340 | 520 | 300 | 420 |
15M | 60,000 | 490 | 730 | 390 | 580 |
20M | 90,000 | 670 | 1000 | 540 | 800 |
25M | 120,000 | 1110 | 1670 | 890 | 1340 |
30M | 210,000 | 1560 | 2330 | 1250 | 1860 |
35M | 300,000 | 2230 | 3340 | 1780 | 2670 |
GRADE 400 STEEL | |||||
10M | 40,000 | 460 | 690 | 370 | 550 |
15M | 80,000 | 650 | 980 | 520 | 780 |
20M | 120,000 | 890 | 1340 | 710 | 1070 |
25M | 200,000 | 1480 | 2230 | 1180 | 1770 |
30M | 280,000 | 2080 | 3120 | 1660 | 2500 |
35M | 400,000 | 2970 | 4450 | 2380 | 3560 |
MINIMUM SPLICE LENGTH, Inches
GRADE AND BAR SIZE |
MINIMUM PULLOUT, Pounds |
SPACING < 150 in. |
SPACING > 6 in. |
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PLAIN STEEL |
EPOXY COATED STEEL |
PLAIN STEEL |
EPOXY COATED STEEL |
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GRADE 40 STEEL | |||||
#4 | 10,000 | 14 | 16 | 12 | 13 |
#5 | 15,500 | 17 | 20 | 14 | 16 |
#6 | 22,000 | 22 | 26 | 18 | 21 |
#7 | 30,000 | 30 | 35 | 24 | 28 |
#8 | 39,500 | 40 | 46 | 32 | 37 |
#9 | 50,000 | 50 | 58 | 40 | 46 |
#10 | 63,500 | 64 | 73 | 51 | 59 |
#11 | 78,000 | 78 | 90 | 62 | 72 |
GRADE 60 STEEL | |||||
#4 | 15,000 | 21 | 24 | 17 | 19 |
#5 | 23,250 | 26 | 30 | 21 | 24 |
#6 | 33,000 | 33 | 38 | 27 | 31 |
#7 | 45,000 | 45 | 52 | 36 | 42 |
#8 | 59,250 | 59 | 68 | 48 | 55 |
#9 | 75,000 | 75 | 86 | 60 | 69 |
#10 | 95,250 | 95 | 109 | 76 | 88 |
#11 | 117,000 | 117 | 134 | 93 | 107 |
SECTION 703, AFTER LINE 128, INSERT AS FOLLOWS:
SECTION 703, AFTER LINE 141, INSERT AS FOLLOWS:
SECTION 703, AFTER LINE 147, INSERT AS FOLLOWS:
SECTION 703, LINE 153, INSERT AS FOLLOWS:
place, and laps shall be included in the cost of epoxy coated
reinforcing steel. If threaded tie bar assemblies are used in
lieu of longitudinal 20M x 1800 mm (No. 6 x 6'-0")
reinforcing bars, the cost of such assemblies shall be included
in the cost of reinforcing steel.