MONITORING SYSTEM

• Main Authors: USHIJIMA SAKAE, ASAKURA YASUNOBU, TAKASE KAZUO, SAMEJIMA YUTAKA, HARADA TAKASHI, ZHANG GUANGHENG, AKAI RYOTA, NISHIDA SHUJI, OSUMI KEITA, SATO TOSHIO, ISHIYAMA MASAYUKI, KURAJI KENTARO, MIGITAKA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 28.05.2020
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MEASURING; OR VIADUCTS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

To provide a technology capable of easily confirming whether the state of a friction damper attached to support a horizontal force of a bearing has changed.SOLUTION: A sensor node 1 detects in a bridge in which an upper structure is placed on a lower structure via a bearing 100 whether the state of a friction damper 200 has changed by means of an output of a strain sensor 13a attached to an inner cylinder 201 of the friction damper 200 that supports a horizontal force of the bearing 100. A notification device 2 requests a notification of the detection result from the sensor node 1, and provides an output in a visually or audibly confirmable form whether the state of the friction damper 200 has changed based on the detection result notified from the sensor node 1.SELECTED DRAWING: Figure 1 【課題】支承の水平力を支持するために取り付けた摩擦ダンパの状態が変化したかどうかの確認が簡単に行える技術を提供する。【解決手段】センサノード１は、支承１００を介して上部構造を下部構造に載置した橋梁において、支承１００の水平力を支持する摩擦ダンパ２００の内筒２０１に取り付けたひずみセンサ１３ａの出力によって、摩擦ダンパ２００の状態が変化したかどうかを検知する。報知装置２は、センサノード１に対して検知結果の通知を要求し、センサノード１から通知された検知結果に基づき、摩擦ダンパ２００の状態が変化したかどうかを視覚または聴覚で確認できる形態で出力する。【選択図】図１