NON-DESTRUCTIVE TESTING AND EVALUATION OF STRUCTURAL PERFORMANCE FOR AGING STEEL-CONCRETE COMPOSITE STRUCTURES

2016 Fiscal Year Final Research Report

• Project/Area Number: 25709038
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tohoku University
• Principal Investigator: NAITO Hideki 東北大学, 工学(系)研究科(研究院), 准教授 (50361142)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 構造工学 / 複合構造 / 振動試験 / 損傷同定 / 構造性能評価 / 安全性評価 / 信頼性解析

Outline of Final Research Achievements

A non-destructive testing method was investigated to identify an inner damage of steel-concrete composite structure. Especially, a forced vibration test was examined in this research. The local vibration of a composite structure was excited by using a portable shaker. And, the resonant frequency changes were measured in the static loading tests of the SRC beam specimens. As the experimental results, the resonant frequency was significantly decreased on the invisible steel-concrete slip area in the SRC beam specimen. It was indicated that the forced vibration testing by using a portable shaker was useful to identify the inner damage of steel-concrete composite structures.

Free Research Field

工学