Title:
橋梁用伸縮継手システム
Document Type and Number:
Japanese Patent JP6774162
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an expansion joint system for a bridge that appraises integrity of an expansion joint and a bridge body affected by a traffic load, for performing maintenance, replacement and other work at an appropriate time for the bridge body and the expansion joint.SOLUTION: A joint gap A is formed in a bridge axial direction on a floor slab part of a road bridge, leaving an interval. A pair of face plates 7, 7 and a strain measurement sensor 10 are installed on the joint gap A, the pair of face plates constituting a finger joint 4 flush with a road surface of the floor slab part, and the strain measurement sensor measuring displacement and strain caused by a wheel load on the face plates 7, 7. The strain measurement sensor 10 monitors displacement at a tip of the face plates 7, 7, and strain at a root part of the face plates. Integrity of the finger joint and a bridge body is appraised based on the monitoring result. Monitoring by a monitoring camera 11 is also performed.SELECTED DRAWING: Figure 1
Inventors:
Matsuno Masami
Taro Tonegawa
Masatsugu Nagai
Tsuyoshi Miyashita
Taro Tonegawa
Masatsugu Nagai
Tsuyoshi Miyashita
Application Number:
JP2014206511A
Publication Date:
October 21, 2020
Filing Date:
October 07, 2014
Export Citation:
Assignee:
Yokogawa ns Engineering Co., Ltd.
Nagaoka University of Technology
Nagaoka University of Technology
International Classes:
E01C11/02; E01D22/00
Domestic Patent References:
| JP4112903U | ||||
| JP2004044116A | ||||
| JP2012063467A1 | ||||
| JP2004190264A |
Foreign References:
| US20020138925 |
Attorney, Agent or Firm:
Kumon enjoyment
Hisako Yasuko
Hisako Yasuko