THROUGH DIAPHRAGM WELD JOINT STEEL PIPE COLUMN, AND MANUFACTURING METHOD OF THROUGH DIAPHRAGM WELD JOINT STEEL PIPE COLUMN

摘要

PROBLEM TO BE SOLVED: To provide a through diaphragm weld joint steel pipe column not generating breakage of a weld metal prior to a base metal, even when using partial penetration welding to a single bevel groove weld joint.;SOLUTION: Assuming that a groove angle of a single bevel groove of a weld zone of partial penetration welding is α(°), a plate thickness of a steel pipe provided with a single bevel groove is t(mm), a distance from the surface to the deepest part of the steel pipe in a weld metal is t'(mm), a weld reinforcement height is e(mm), a tensile strength of the weld metal is _WMσ_u(N/mm²), and a tensile strength of the steel pipe is _BMσ_u(N/mm²), these items satisfy a prescribed relation.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2017,JPO&INPIT