2013 Fiscal Year Final Research Report
Monitoring of Bridge Displacement with Image Correlation Method
| Project/Area Number |
23560578
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
|
|---|
| Research Institution | Tokyo Denki University |
|---|
Principal Investigator |
NIITSU Yasushi 東京電機大学, 情報環境学部, 教授 (70143659)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 橋梁 / 変位計測 / モニタリング / 画像処理 |
|---|
| Research Abstract |
The real-time displacement measuring system with digital image correlation method was developed and the displacements of three road-bridges and a railway-bridge were measured under traffic loaded state. The 2D movement of 32x32 partial image could be traced with better than 0.05-pixel resolution by image correlation method. The displacement measurement of the bridge was carried out at the interval of 50 times in a second. In the measured bridge selection, Sakae-Bridge was chosen as a big sample and one small bridge as a small one. The high-speed camera with 1280x1024x8bits resolution power was used in the measurement. The displacement of bridges coursed by the traffic load could be detected with enough resolution power.
|
