Fundamental Study on Vibration Test of Building Structure Using Impactor Machine
| Project/Area Number |
11650573
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | TOHOKU UNIVERSITY |
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Principal Investigator |
MOTOSAKA Masato Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90281708)
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| Co-Investigator(Kenkyū-buntansha) |
HOSHI Michio Tohoku University, Graduate School of Engineering, Research Assistant, 大学院・工学研究科, 助手 (90005504)
SHIBATA Akenori Tohoku Bunka Gakuen University, Dept.of Environment Planning Technology, Professor, 科学技術学部, 教授 (30005251)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1999: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | Impactor / Vibration Test / Stacking / Vibration Characteristics / Horizontal Vibration / Vertical Vibration / Actual Building-Soil System |
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| Research Abstract |
It is important in earthquake engineering to investigate the vibration characteristics of building-soil system and evaluate the damage extent from their change. In this study, a vibration characteristics of the actual Building-Soil system were investigated for the impulsive load using Land Air Gun Impactor which is used in the geological reflection survey, and compared with those for the sinusoidal waves.
In the 1999 fiscal year, the fundamental characteristics of the generated wave from the impactor were investigated. The attenuation characteristics were investigated and reciprocity was confirmed. Stacking technique was used for enhance the S/N ratios in the data processing. Impactor test was performed in the actual SRC building of Tohoku University. The vibration characteristics were investigated and compared with those for the 1998/9/15 near-source earthquake in Sendai.
In the 2000 fiscal year, the forced vibration test using the unbalanced-mass type excitor was performed in the same building of the Tohoku University. The vibration characteristics for the sinusoidal waves were compared with those for the impactor test. It is found that the resonant and phase lag curves are consistent with the results of the impactor test. Simulation analyses were performed for these test results using frame models of the building. Comparing the change of the dynamic characteristics from those at the completion time, the damage extent of the each part of the building was investigated.
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Report
(3 results)
Research Products
(14 results)
