構造物のたわみ計測装置

Japanese Patent JP7173281

B2

An apparatus includes: a deflection acquiring unit that acquires a deflection amount caused in a measurement target region on a structure by a vehicle traveling on the structure; a vehicle position acquiring unit that acquires a position of the vehicle on the structure at time when the deflection amount is acquired; and a rigidity coefficient calculating unit that calculates a rigidity coefficient specifying a relation between a magnitude of a force applied to the structure due to a weight of the vehicle and flexural rigidity of the structure, from a relation equation, the acquired deflection amount, and the detected position of the vehicle. The relation equation is established among a position of the vehicle on the structure, the magnitude of the force, a position of the measurement target region on the structure, a length of the structure, the flexural rigidity, and a deflection amount caused in the measurement target region.

Yuya Ishii

JP2021504629A

November 16, 2022

March 08, 2019

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NEC

G01M5/00; E01D22/00

JP2004252520A
JP2010197249A
JP2000055776A
JP2017142185A

WO2017200380A1
WO2018138943A1

国立研究開発法人産業技術総合研究所,デジタルカメラで撮影するだけで橋のたわみを計測する技術の開発,[online],2016年08月,インターネット,[令和4年3月30日検索]
株式会社共和電業,橋梁など大型インフラ構造物のモニタリング用高精度カメラを製品化,[online],2018年09月,インターネット,[令和4年3月30日検索]
木須博行ほか,はりの曲げ剛性分布の同定法に関する研究,日本機械学会論文集(A編),vol.70, no.698, pp.1462-2467,2004年10月

Baba Shiho
Sakai Hiromi
Katsuragi Yuji
Karakama Mutsumi

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