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STEEL PIPE PILE JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide a steel pipe pile joint structure that securely transmits a pressing-in load and a normal-reverse rotational load occurring in construction work of steel pipe piles, and that includes sufficient rigidity for pulling and bending loads.SOLUTION: In a steel pipe pile joint structure joining the upper end of a lower steel pipe pile and the lower end of an upper steel pipe pile, when the convex part of an inner surface joint (I) of the upper steel pipe pile is inserted into the concave part of an outer surface joint (II) of the lower steel pipe pile, a flange 5 of the inner surface joint is joined to a flange contact part 3 of the outer surface joint in a loading manner and a parallel key slot 3 of the inner surface joint is fitted to a parallel key insertion hole 4 of the outer surface joint. A parallel key 5 in a cuboid shape is inserted into the fitting hole, and the parallel key is fixed to a female screw part 2 of the inner surface joint with a bolt 2. In addition, the parallel key, which is fixed to the inner surface joint, has a mechanism of moving in response to a rotation of the inner surface joint. This causes the concave and convex parts of inner and outer joints to securely contact with each other so that a rotational torque load is transmitted.SELECTED DRAWING: Figure 1
【課題】鋼管杭の施行工事で発生する押し込み、正逆回転荷重を確実に伝達し、引抜きおよび曲げ荷重に対して十分な剛性を備えた鋼管杭継手構造を提供する。【解決手段】下側鋼管杭の上端部と上側鋼管杭の下端部とを接合する鋼管杭継手構造において、上側鋼管杭の内面継手（イ）の凸部が下側鋼管杭の外面継手（ロ）凹部に挿入されると、内面継手のつば部５が外面継手のつば接触部３に積載接合され、内面継手の平行キー溝孔３が外面継手の平行キー差込み孔４に嵌め合いされる。この嵌め合い穴に長方体の平行キー５を差込み、ボルト２で平行キーを内面継手の雌ねじ部２に固定されるものとした。また、内面継手に固定された平行キーは内面継手の回転に合わせて移動する仕組みであり、これにより内・外継手の凹凸部が確実に接触して回転トルク荷重が伝達されている。【選択図】図１
STEEL PIPE PILE JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide a steel pipe pile joint structure that securely transmits a pressing-in load and a normal-reverse rotational load occurring in construction work of steel pipe piles, and that includes sufficient rigidity for pulling and bending loads.SOLUTION: In a steel pipe pile joint structure joining the upper end of a lower steel pipe pile and the lower end of an upper steel pipe pile, when the convex part of an inner surface joint (I) of the upper steel pipe pile is inserted into the concave part of an outer surface joint (II) of the lower steel pipe pile, a flange 5 of the inner surface joint is joined to a flange contact part 3 of the outer surface joint in a loading manner and a parallel key slot 3 of the inner surface joint is fitted to a parallel key insertion hole 4 of the outer surface joint. A parallel key 5 in a cuboid shape is inserted into the fitting hole, and the parallel key is fixed to a female screw part 2 of the inner surface joint with a bolt 2. In addition, the parallel key, which is fixed to the inner surface joint, has a mechanism of moving in response to a rotation of the inner surface joint. This causes the concave and convex parts of inner and outer joints to securely contact with each other so that a rotational torque load is transmitted.SELECTED DRAWING: Figure 1
【課題】鋼管杭の施行工事で発生する押し込み、正逆回転荷重を確実に伝達し、引抜きおよび曲げ荷重に対して十分な剛性を備えた鋼管杭継手構造を提供する。【解決手段】下側鋼管杭の上端部と上側鋼管杭の下端部とを接合する鋼管杭継手構造において、上側鋼管杭の内面継手（イ）の凸部が下側鋼管杭の外面継手（ロ）凹部に挿入されると、内面継手のつば部５が外面継手のつば接触部３に積載接合され、内面継手の平行キー溝孔３が外面継手の平行キー差込み孔４に嵌め合いされる。この嵌め合い穴に長方体の平行キー５を差込み、ボルト２で平行キーを内面継手の雌ねじ部２に固定されるものとした。また、内面継手に固定された平行キーは内面継手の回転に合わせて移動する仕組みであり、これにより内・外継手の凹凸部が確実に接触して回転トルク荷重が伝達されている。【選択図】図１
STEEL PIPE PILE JOINT STRUCTURE
鋼管杭継手構造
ITAGAKI TSUGIO (author) / ITAGAKI ATSUSHI (author) / WATANABE YOSHIHISA (author) / WATANABE KOICHI (author)
2018-11-15
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
,
Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
Joint structure for steel-pipe pile, and steel-pipe pile
| European Patent Office | 2015