Title:
STEEL SLAB BRIDGE EVALUATION DEVICE, STEEL SLAB BRIDGE EVALUATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/203262
Kind Code:
A1
Abstract:
Provided is a steel slab bridge evaluation device capable of quantitative evaluation of damage and deterioration inside a steel slab bridge. A steel slab bridge evaluation device (10) comprises: an acquisition unit (100) for acquiring reflection response data related to reflection response of electromagnetic radiation applied from a surface of a slab in a depth direction of the of the slab; a removal unit (101) for removing a first frequency component obtained through reflection of the electromagnetic radiation on a surface (96) of the slab and a second frequency component obtained through reflection of the electromagnetic radiation on a steel slab (98) from the frequency distribution of the reflection response represented by the reflection response data acquired by the acquisition unit (100); and an evaluation unit (102) for evaluating damage and degradation of the slab using a measured peak value being a peak value of levels of frequency components greater than or equal to a specific frequency in the frequency distribution of the reflection response from which the first and second frequency components have been removed by the removal unit (101).
Inventors:
OTA MASAHIKO (JP)
MORITA HIDEAKI (JP)
SHIOZAWA AKIKO (JP)
MORITA HIDEAKI (JP)
SHIOZAWA AKIKO (JP)
Application Number:
PCT/JP2020/011752
Publication Date:
October 08, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
GEO SEARCH CO LTD (JP)
International Classes:
G01N22/02; E01D19/12; E01D22/00
Domestic Patent References:
| WO2018105106A1 | 2018-06-14 |
Foreign References:
| JPH0151939B2 | 1989-11-07 | |||
| JP2015197434A | 2015-11-09 | |||
| JPH0862338A | 1996-03-08 | |||
| JP2011112403A | 2011-06-09 | |||
| US6772091B1 | 2004-08-03 | |||
| US20130018575A1 | 2013-01-17 |
Other References:
MORITA, HIDEAKI ET AL.: "Development and application of bridge deck deterioration diagnosis system utilizing skeleka technology", LECTURE SUMMARIES OF THE 66TH ANNUAL ACADEMIC LECTURE CONFERENCE OF JAPAN SOCIETY OF CIVIL ENGINEERS, vol. 156, 2011, pages 1 - 2
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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