Steel pipe sheet pile, joint structure, steel pipe sheet pile foundation of steel pipe sheet pile, and a method for manufacturing of steel pipe sheet pile

摘要

PPROBLEM TO BE SOLVED: To provide a steel pipe sheet pile, a joint structure of the steel pipe sheet pile, a steel pipe sheet pile foundation, and a manufacturing method of the steel pipe sheet pile, capable of reducing manufacturing costs, improving workability, and improving the shear capacity of a joint part. PSOLUTION: In the steel pipe sheet pile 2 having a joint steel pipe 5 fixed to the outer surface of a steel pipe sheet pile main pipe 4, the joint steel pipe 5 has recessed parts 51 recessed from the outer surface of the joint steel pipe 5 to the inside at prescribed intervals in the axial direction of the joint steel pipe 5, the recessed parts 51 can be formed by cold working such as roll working after the steel pipe is manufactured, and the manufacturing cost of the steel pipe sheet pile 2 is reduced. Further, since the recessed part 51 of one joint steel pipe 5 and the other joint steel pipe 5 can be brought into point contact and the competition of the joint steel pipes 5 with each other is suppressed, placing resistance is reduced and the workability is improved. Also, since a filler 6 is stuck to the recessed parts 51 as well, the shear capacity of the joint part 3 is improved. PCOPYRIGHT: (C)2012,JPO&INPIT