Development of low-cost inspection system by the optical method of bridge over the sea

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630214
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Nagasaki University
• Principal Investigator: MATSUDA Hiroshi 長崎大学, 工学研究科, 教授 (20157324)
• Co-Investigator(Kenkyū-buntansha): INADA Hiroshi 清水建設株式会社, 技術研究所・インフラ再生プロジェクト室, 主任研究員 (00443747) ; DEMIZU Akira 長崎大学, 工学研究科, 技術職員 (00533308) ; MORITA Chihiro 長崎大学, 工学研究科, 准教授 (60230124) ; NISHIKAWA Takafumi 長崎大学, 工学研究科, 助教 (50512076)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 仮設足場 / 橋梁点検 / 光学的計測法 / 渡海橋 / 跨道橋 / 跨線橋 / デジタル画像解析

Outline of Final Research Achievements

In the present study, using optical measurement methods, such as 3D laser scanner and digital image analysis, as the target of the bridge can not be inspected without a temporary scaffolding, it presented a new inspection method alternative to traditional inspection methods. And it has been verified the validity and usefulness by the feasibility study. Specifically, we have developed a deflection measurement method of a bridge according to the three-dimensional maintenance system and digital image analysis for outer appearance degradation information acquisition.

Free Research Field

土木工学