Specifications (S.I. Units)

Tapered Sections

    Weight (N) Per Foot Est.
Conc. Vol.
m3
TYPE SIZE
Tip Point Diameter x
Butt Diameter x Length
9 GA.
3.79mm
7 GA.
4.55mm
5 GA.
5.31mm
3 GA.
6.07mm
F 216mm x 305mm x 7.62mm 248 292 350 409 0.329
Taper 203mm x 305mm x 9.14mm 233 292 336 394 0.421
11.7mm 216mm x 356mm x 12.19mm 277 321 379 452 0.726
Per Meter 203mm x 406mm x 18.29mm 292 350 409 481 1.284
  203mm x 457mm x 22.86mm - 379 452 511 1.980
             
J 203mm x 305mm x 5.18mm 248 292 336 394 0.245
Taper 203mm x 356mm x 7.62mm 263 321 379 438 0.443
20.8mm 203mm x 406mm x 10.06mm 292 350 409 467 0.726
Per Meter 203mm x 457mm x 12.19mm - 379 438 511 1.047
             
Y 203mm x 305mm x 3.05mm 248 292 350 409 0.138
Taper 203mm x 356mm x 4.57mm 277 321 379 438 0.260
33.3mm 203mm x 406mm x 6.10mm 292 350 409 481 0.428
Per Meter 203mm x 457mm x 7.62mm - 379 452 511 0.658

Extension Sections

TYPE Diameter x Length 9 GA.
3.79mm
7 GA.
4.55mm
5 GA.
5.31mm
3 GA.
6.07mm
m3/m
N 12 305mm x 305mm x 6.10m/12.19m 292 350 409 481 0.065
N 14 356mm x 356mm x 6.10m/12.19m 350 423 481 554 0.088
N 16 406mm x 406mm x 6.10m/12.19m 394 467 554 642 0.113
N 18 457mm x 457mm x 6.10m/12.19m - 540 627 715 0.145

Physical Properties

  POINTS BUTTS OF PILE SECTIONS
Steel
Thickness
203
mm
216
mm
305mm Diameter 356mm Diameter 406mm Diameter 457mm Diameter
  A
mm2
A
mm2
A
mm2
I
mm4
x106
S
mm3
x103
r
mm
A
mm2
I
mm4
x106
S
mm3
x103
r
mm
A
mm2
I
mm4
x106
S
mm3
x103
r
mm
A
mm2
I
mm4
x106
S
mm3
x103
r
mm
9 Ga.
3.79mm
2,342 2,535 3,748 42.456 267.109 106 4,355 66.181 360.515 123 4,929 96.566 463.754 140 - - - -
7 Ga.
4.55mm
2,839 3,077 4,497 50.780 319.548 106 5,252 80.749 437.535 124 5,923 115.712 555.521 140 6,710 168.157 712.837 158
5 Ga.
5.31mm
3,348 3,619 5,277 60.354 376.902 107 6,129 94.485 507.999 124 6,968 136.940 653.834 140 7,871 198.959 839.018 159
3 Ga.
6.07mm
3,787 4,245 5,781 61.602 396.567 103 6,839 99.479 550.605 124 7,742 144.849 706.282 137 8,774 209.781 907.843 155
Concrete Area
mm2
27,290 30,516 65,161 87,742 113,548 144,516
Piles:
All piles shall be fluted steel tubes, having a uniformly tapered lower section which may be combined with extensions of essentially constant diameter, of a type wherein the tubes are driven to a required penetration, left permanently in place, and filled with concrete.

Material Specifications:
The material in the pile shall comply with SAE-1010 steel specifications having the following chemical ranges and limits:

  • Carbon 0.08 to 0.13 (%)
  • Manganese 0.30 to 0.60 (%)
  • Sulfur 0.05 (% max.)
  • Phosphorous 0.04 (% max.)

Minimum tensile yield strength of the steel in fabricated pile, as determined by standard tests, shall be 50,000 psi.

Steel piles shall be strong enough to withstand safely the forces of installation, but in no case shall the wall thickness of the pile be less than 1/10 of an inch.

Point diameter shall be not less than 8 inches. Piles shall taper not less than one inch in eight feet, excepting that when such taper has developed a diameter of *____ inches, the piles may be extended with sections having a diameter which is virtually constant. All splices shall consist of a continuous weld to form an integral pile.

*Note:
Insert appropriate butt diameter, i.e., 305mm, 356mm, 406mm, 457mm.

Design Computation

Allowable structural capacity in accordance with provisions of the International Building Code.

Example

Allowable load
Pa + 0.35 FyAs + 0.33 F′cAc

For 7 ga. 12 in. dia. Monotube:
As = 6.97 in2 (p. 8)
Ac = 101 in2 (p. 8)

Concrete F′c = 4000 p.s.i.

Steel F′y = 50000 p.s.i. (P. 11)
Pa = 0.35 x 50,000 x 6.97
+ 0.33 x 4000 x 101
= 255295# or 128 tons