複合構造物 (2)

[CS6-14] The present conditions and consideration of maintenance management method of concrete filled steel-tube columns used for railway structures

*網谷 岳夫¹、行澤 義弘¹ (1. 東日本旅客鉄道株式会社)

Keywords:Concrete filled steel-tube column, Maintenance, Ground area, corrosion, Soundness

CFT columns are designed in accordance with the "Railway Structure Design Standard" in the new scene. In the maintenance and management scene, inspections are performed with reference to “Steel and composite structure” of “Railway structure maintenance management standard”. At present, the lack of established inspection items and inspection methods specific to CFT columns has become an issue in maintenance management. In this paper, we survey the current situation of CFT columns for 21 years, and show the maintenance method of CFT columns considered based on the results.