STUDY ON DAMAGE IDENTIFICATION AND SEISMIC SAFETY EVALUATION OF STEEL-CONCRETE COMPOSITE STRUCTURES

2014 Fiscal Year Final Research Report

• Project/Area Number: 22246060
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tohoku University
• Principal Investigator: SUZUKI Motoyuki 東北大学, 工学(系)研究科(研究院), 教授 (60124591)
• Co-Investigator(Kenkyū-buntansha): KAZAMA Motoki 東北大学, 大学院工学研究科, 教授 (20261597)
• Co-Investigator(Renkei-kenkyūsha): NAITO Hideki 東北大学, 大学院工学研究科, 准教授 (50361142)
• Project Period (FY): 2010-04-01 – 2015-03-31
• Keywords: 耐震 / 点検 / 非破壊試験 / 振動試験 / 複合構造 / 健全性評価 / 構造性能評価

Outline of Final Research Achievements

For a large ground motion, a damage identification method and seismic safety evaluation of steel-concrete composite structures were examined. Especially, the forced vibration testing method using a portable shaker was proposed. As the experimental results of the static loading tests, the seismic damages of RC specimens and steel-concrete composite specimens were identified based on the resonance frequencies measured by the forced vibration tests. Moreover, the stiffness distribution and stiffness decrease of the RC structures and composites structures were estimated. It was indicated that the seismic safety of the composite structure could be evaluated by FE analysis.

Free Research Field

工学