PHC Pile
With changing perceptions of building structures' stability due to increases in the height and size of buildings and earthquakes, there is a growing demand for high-performance PHC piles to reinforce foundations.
Type | Size (mm) | Outside diameter (mm) | Thickness (mm) | PC steel bar (mm) | Pile(㎣) | Percentage of steel bars(%) | ||
---|---|---|---|---|---|---|---|---|
Size | Number of piles | Gross cross-sectional area | ||||||
Type A | ø400 | 400 | 65 | 7.4 | 10 | 420.0 | 68 373.5 | 0.59 |
ø450 | 450 | 70 | 9.2 | 8 | 472.5 | 83 524.0 | 0.61 | |
ø500 | 500 | 80 | 9.2 | 9 | 576.0 | 105 504.0 | 0.55 | |
ø600 | 600 | 90 | 9.2 | 12 | 768.0 | 144 126.0 | 0.53 | |
Type B | ø400 | 400 | 65 | 9.2 | 12 | 840.0 | 68 373.5 | 0.70 |
ø450 | 450 | 70 | 9.2 | 16 | 945.0 | 83 524.0 | 1.23 | |
ø500 | 500 | 80 | 9.2 | 18 | 1 152.0 | 105 504.0 | 1.09 | |
ø600 | 600 | 90 | 9.2 | 24 | 1 536.0 | 144 126.0 | 1.07 |
Size (㎜) |
Thickness t(㎜) |
By type | Base bending moment (N=0) |
Concrete section Ac (㎠) |
Transformed section Ae (㎠) |
Transformed section Second moment Ie () |
Transformed section Ze Ze (㎤) |
Design bending moment (N=0) |
Allowable axial load bearing Pa |
|||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Cracking moment (Mcr) | Breaking moment (Mu) | Cracking moment (Mcr) | Breaking moment (Mu) | High-performance pile kN (t) |
High-performance pile kN (t) |
|||||||
kN·m (tf·m) |
kN·m (tf·m) |
kN·m (tf·m) |
kN·m (tf·m) |
|||||||||
400 | 65 | A | 54.0 (5.5) |
81.4 (8.3) |
684 | 705 | 102 611 | 5 131 | 61.4 (6.3) |
98.1 (10.0) |
1 130 (113) |
1 930 (193) |
B | 73.6 (7.5) |
132.4 (13.5) |
726 | 105 646 | 5 282 | 83.9 (8.6) |
177.1 (18.1) |
1 160 (116) |
1 700 (170) |
|||
C | 88.3 (9.0) |
176.6 (18.0) |
735 | 106 975 | 5 349 | 93.1 (9.5) |
206.6 (21.1) |
1 030 (103) |
1 570 (157) |
|||
450 | 70 | A | 73.6 (7.5) |
110.8 (11.3) |
836 | 859 | 160 220 | 7 121 | 82.9 (8.5) |
125.7 (12.8) |
1 370 (137) |
2 350 (235) |
B | 107.9 (11.0) |
194.2 (19.8) |
883 | 164 484 | 7 310 | 111.9 (11.4) |
228.7 (23.3) |
1 410 (141) |
2 070 (207) |
|||
C | 122.6 (12.5) |
245.2 (25.0) |
893 | 166 353 | 7 393 | 123.9 (12.6) |
280.9 (28.6) |
1 250 (125) |
1 910 (191) |
|||
500 | 80 | A | 103.0 (10.5) |
155.0 (15.8) |
1 056 | 1 084 | 247 855 | 9 914 | 114 (11.6) |
170.8 (17.4) |
1 740 (174) |
2 970 (297) |
B | 147.2 (15.0) |
264.9 (27.0) |
1 113 | 254 512 | 10 180 | 153.4 (15.7) |
311.7 (31.8) |
1 780 (178) |
2 600 (260) |
|||
C | 166.8 (17.0) |
333.5 (34.0) |
1 137 | 259 920 | 10 397 | 183.2 (18.7) |
396.7 (40.5) |
1 590 (159) |
2 430 (243) |
|||
600 | 90 | A | 166.8 (17.0) |
250.2 (25.5) |
1 442 | 1 480 | 496 407 | 16 547 | 188.8 (19.3) |
275.7 (28.1) |
2 370 (237) |
4 060 (406) |
B | 245.2 (25.0) |
441.4 (45.0) |
1 519 | 509 386 | 16 980 | 253.3 (25.8) |
505.8 (51.6) |
2 430 (243) |
3 550 (355) |
|||
C | 284.5 (29.0) |
569.0 (58.0) |
1 550 | 519 931 | 17 331 | 301.9 (30.8) |
650.7 (66.4) |
2 170 (217) |
3 320 (332) |
*The structural design and tables are for reference only and subject to change.