| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel pipe pile rotation suppressing structure capable of preventing a tensile strength and a compressive strength of the whole joint from decreasing and improving a rotation resistance of a first steel pipe pile and a second steel pipe pile.SOLUTION: A steel pipe pile rotation suppressing structure 7 suppresses a relative rotation of a first steel pipe pile 1 and a second steel pipe pile 2. The steel pipe pile rotation suppressing structure 7 according to this invention comprises an outer fitting end 3 and an inner fitting end 5 which link the first steel pipe pile 1 and the second steel pipe pile 2 in an axial core direction Y. The outer fitting end 3 comprises an outer fitting convexity 31, an outer fitting groove 32, an outer fitting concavity 33, and an outer fitting tip 34. The inner fitting end 5 comprises an inner fitting convexity 51, an inner fitting groove 52, an inner fitting concavity 53, and an inner fitting base end 55. A key groove 72 is formed by cutting out an outer face of the inner fitting base end 55. A key member abuts against lateral faces of the outer fitting convexity 31 and the inner fitting convexity 51. The inner fitting base end 55 is installed by inserting the key member between the outer fitting groove 32 and the inner fitting groove 52 from the key groove 72.SELECTED DRAWING: Figure 21 |
