| Budget Amount *help |
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Outline of Final Research Achievements |
An algorithm to estimate bridge deflection due to traffic load by using wireless accelerometers was developed. The algorithm is then experimentally validated on a bridge. The algorithm utilizes inclination estimation and eliminates the necessity of numerical integration. The problem of numerical instability existing in conventional deflection estimation based on acceleration measurement is thus addressed.
Then an algorithm to estimate the weight of vehicle driving on a bridge using the estimated deflection is developed. Even when multiple vehicles are running on a bridge, the weight of each vehicle can be decomposed and evaluated.
Finally, vehicle responses measured by the sensors installed on a vehicles are inversely analyzed and the load transmitted through the tire to the bridge is evaluated.
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