Fatigue crack repair wedge member removal mechanism, fatigue crack repair wedge member mounting method, and fatigue crack repair wedge member removal method

摘要

PROBLEM TO BE SOLVED: To provide a mechanism for removing a wedge member for repairing a fatigue crack, a method for mounting a wedge member for repairing a fatigue crack, and a method for removing the wedge member for repairing a fatigue crack. SOLUTION: A first slope component 11, a second slope component 12, and a second slope component 12 are fitted into a stop hole 3 provided for a fatigue crack 2 to suppress a stress fluctuation width of a structure 1. A removal mechanism used for removing the repair wedge member 10 provided with a mounting load applying means for applying a load in the direction of sliding on the first slope component 11, and the second slope component 12 is the first slope component. A removal load applying means (bolt 14) that slides on the 11 and applies a load in a downward direction is provided, and when the repair wedge member 10 is removed from the stop hole 3, the removal load is applied by the removal load applying means (bolt 14). Give. [Selection diagram] Fig. 1