Life-Cycle Management Strategy on Steel Girders in Bridges

Table 2

Proposed replacement and rehabilitation action set.

Action description	Action matrix	Possible replacement and rehabilitation methods
Do nothing	Rep, 1	Observation
Minor repair	Rep, 2	Corrosion removal, surface cleaning, degreasing, and repainting
		Rectify deformed parts
Major repair	Rep, 3	Removal/cut defects and parts and repainting
Rehabilitation repair	Rep, 4	Removal/cut defects and parts, strengthening, and repainting
		Structure strengthening by steel plate
		Structure strengthening by CFRP
		Structure strengthening by external tendons
Replacement	Rep, 5	Structure replaced by new members