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CONCRETE PILE WITH DOUBLE STEEL PIPE. PRODUCTION DEVICE THEREOF, AND PILE HEAD JOINT STRUCTURE
To provide a concrete pile with double steel pipes securing enough bending yield strength even at an end part, a production device thereof, and a pile head joint structure.SOLUTION: An inner steel pipe of a concrete pile with double steel pipes is configured to share tensile axial force when bending moment acts on the concrete pile with double steel pipes. At least a first end part of the inner steel pipe is configured to allow larger tensile axial force to be shared than that in a case where the first end part of the inner steel pipe and a first end plate are welded. The first end part of the inner steel pipe and the first end plate are jointed through a first complete penetrated groove welded part. The first complete penetrated groove welded part is configured such that the tensile axial force acts when the tensile axial force acts on the inner steel pipe, and a second end part of the inner steel pipe is positioned closer to a first end part of the inner steel pipe than to a second end plate, and a deviation stopper is provided on an outer peripheral surface of the inner steel pipe to prevent relative deviation of a filling section in an axial direction of the inner steel pipe.SELECTED DRAWING: Figure 44
【課題】端部においても十分な曲げ耐力が確保されている二重鋼管付きコンクリート杭、その製造装置、及び、杭頭接合構造を提供する。【解決手段】二重鋼管付きコンクリート杭の内鋼管は、二重鋼管付きコンクリート杭に曲げモーメントが作用したときに、引張軸力を負担するように構成され、内鋼管の少なくとも第１端部は、内鋼管に引張軸力が作用したときに、内鋼管の第１端部と第１端板とを隅肉溶接したときよりも大きな引張軸力を負担可能に構成され、内鋼管の第１端部と第１端板とは第１完全溶込み開先溶接部を介して接合され、第１完全溶込み開先溶接部は、内鋼管に引張軸力が作用したときに引張軸力が作用するように構成され、内鋼管の第２端部は、内鋼管の軸線方向にて、第２端板よりも内鋼管の第１端部側に位置し、内鋼管の外周面には、内鋼管の軸線方向での充填部の相対的なずれを防止するためのずれ止めが設けられている。【選択図】 図４４
CONCRETE PILE WITH DOUBLE STEEL PIPE. PRODUCTION DEVICE THEREOF, AND PILE HEAD JOINT STRUCTURE
To provide a concrete pile with double steel pipes securing enough bending yield strength even at an end part, a production device thereof, and a pile head joint structure.SOLUTION: An inner steel pipe of a concrete pile with double steel pipes is configured to share tensile axial force when bending moment acts on the concrete pile with double steel pipes. At least a first end part of the inner steel pipe is configured to allow larger tensile axial force to be shared than that in a case where the first end part of the inner steel pipe and a first end plate are welded. The first end part of the inner steel pipe and the first end plate are jointed through a first complete penetrated groove welded part. The first complete penetrated groove welded part is configured such that the tensile axial force acts when the tensile axial force acts on the inner steel pipe, and a second end part of the inner steel pipe is positioned closer to a first end part of the inner steel pipe than to a second end plate, and a deviation stopper is provided on an outer peripheral surface of the inner steel pipe to prevent relative deviation of a filling section in an axial direction of the inner steel pipe.SELECTED DRAWING: Figure 44
【課題】端部においても十分な曲げ耐力が確保されている二重鋼管付きコンクリート杭、その製造装置、及び、杭頭接合構造を提供する。【解決手段】二重鋼管付きコンクリート杭の内鋼管は、二重鋼管付きコンクリート杭に曲げモーメントが作用したときに、引張軸力を負担するように構成され、内鋼管の少なくとも第１端部は、内鋼管に引張軸力が作用したときに、内鋼管の第１端部と第１端板とを隅肉溶接したときよりも大きな引張軸力を負担可能に構成され、内鋼管の第１端部と第１端板とは第１完全溶込み開先溶接部を介して接合され、第１完全溶込み開先溶接部は、内鋼管に引張軸力が作用したときに引張軸力が作用するように構成され、内鋼管の第２端部は、内鋼管の軸線方向にて、第２端板よりも内鋼管の第１端部側に位置し、内鋼管の外周面には、内鋼管の軸線方向での充填部の相対的なずれを防止するためのずれ止めが設けられている。【選択図】 図４４
CONCRETE PILE WITH DOUBLE STEEL PIPE. PRODUCTION DEVICE THEREOF, AND PILE HEAD JOINT STRUCTURE
二重鋼管付きコンクリート杭、その製造装置、及び、杭頭接合構造
HOMMA YUSUKE (author) / ISHIKAWA KAZUMA (author) / KOUME SHIMPEI (author) / SUGA KAZUMASA (author) / NISHIMURA YUTAKA (author) / ASAI YOICHI (author) / YAMAJI MAMI (author) / SUGAWARA TAKEMI (author)
2024-01-19
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
PILE-HEAD JOINT STRUCTURE FOR STEEL PIPE-REINFORCED CONCRETE PILE
| European Patent Office | 2016
| European Patent Office | 2020