Pile stud Pile head bonding method of prefabricate concrete pile
Deformed bar studs exclusive for “Pile stud welding method”
Accredited certificate of examination method by Japan Construction Center (BCJ-certificate of examination-7)
KSW490（JIS G 3112 SD345）
KSW490 means name of material. This corresponds to JIS SD345.
Example）
Pile stud D16×640
Pile stud D25×1000
※"common name" and "common diameter" are the same meanig.
| Method type | Common name | × | Length | Length before welding | Length after welding | Collar dimensions | Applicable ferrule | |
|---|---|---|---|---|---|---|---|---|
| d | × | Lo | L | Lo | E | F | ||
| Pile stud welding method (standard) |
D13 | × | 520 | 526 | 520～524 | 17 | 5 | 100-101-114 |
| D16 | × | 640 | 646 | 640～644 | 21 | 7 | 100-101-012 | |
| D19 | × | 760 | 767 | 760～764 | 25 | 9 | 100-101-152 | |
| D22 | × | 880 | 887 | 880～884 | 28 | 10 | 100-101-140 | |
| D25 | × | 1000 | 1009 | 1000～1004 | 32 | 12 | 100-101-045 | |
| Type | Chemical composition | Mechanical properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Yield point N/mm2 |
Tensile strength N/mm2 |
Elongation | Bend condition | |||
| % | Gauge | Inside cond | Angle | ||||||||
| KSW490 (JIS G3112 SD345) |
0.20Max | 0.30 ～ 0.90 |
0.15 ～ 0.35 |
0.035Max | 0.035Max | 345～ 440 | 490Min | 20Min | 8D | 4D | 180° |
