Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第I部門

維持・管理(鋼素地調整)

Thu. Sep 5, 2019 2:25 PM - 3:55 PM I-4 (幸町北3号館 321講義室)

座長:塚本 成昭(阪神高速技術)

[I-396] A Proposal of Paint Coating Removal Method by Heating for High Strength Bolted Joints in Steel Bridges

*廣畑 幹人1、豊嶋 大輝1、北根 安雄2、小西 日出幸3 (1. 大阪大学、2. 名古屋大学、3. 日本橋梁(株))

Keywords:Maintenance, Anti-corrosion painting, Paint coating removal, High strength bolt, Heating

A technology has been investigated for removing deteriorated paint coating by heating at a relatively low temperature using ceramic heaters. In this paper, using a heating device applied to high strength bolted joints, a paint coating removal experiment was carried out on a specimen with a large number of bolts. From the viewpoint of workability and prevention of relaxation of the bolt, a heating temperature for paint coating removal was set to 200 degrees, and a method of applying heating and paint coating removal in parallel.

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