JPH02259513A - Measurement system for cracking of concrete - Google Patents

Measurement system for cracking of concrete

Info

Publication number
JPH02259513A
JPH02259513A JP8099489A JP8099489A JPH02259513A JP H02259513 A JPH02259513 A JP H02259513A JP 8099489 A JP8099489 A JP 8099489A JP 8099489 A JP8099489 A JP 8099489A JP H02259513 A JPH02259513 A JP H02259513A
Authority
JP
Japan
Prior art keywords
cracking
concrete
film
fixed
graphing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8099489A
Other languages
Japanese (ja)
Inventor
Yuichi Yamada
Masashi Kimura
Michio Yokota
Takeshi Doihara
Original Assignee
Tokyo Electric Power Co Inc:The
Asia Kosoku Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Electric Power Co Inc:The, Asia Kosoku Kk filed Critical Tokyo Electric Power Co Inc:The
Priority to JP8099489A priority Critical patent/JPH02259513A/en
Publication of JPH02259513A publication Critical patent/JPH02259513A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To accurately measure and reproduce the cracking of concrete in three dimensions by photographing the cracking in the concrete surface by fixed base line length stereoscopic photography.
CONSTITUTION: A stereoscopic camera 1 is fitted on a photography rack whose base line is fixed so that the mutual positions of the lens centers of cameras 1a and 1b and the optical axis direction are fixed at specific values. Then the concrete surface 3 of a concrete structure 2 whose cracking is to be measured is photographed by the stereoscopic camera 1. The exposed film is developed and then set on the film rack of an analytic graphing machine 4 in a negative state, and the analytic graphing machine 4 finds the coordinates of the cracking position in the concrete film, photographed on the negative film, in a three-dimensional space. Then the obtained cracking measured value is stored on a storage means 5 such as a magnetic tape and also inputted to a computer 6 to calculate the width and position of the cracking in three dimensions.
COPYRIGHT: (C)1990,JPO&Japio
JP8099489A 1989-03-31 1989-03-31 Measurement system for cracking of concrete Pending JPH02259513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8099489A JPH02259513A (en) 1989-03-31 1989-03-31 Measurement system for cracking of concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8099489A JPH02259513A (en) 1989-03-31 1989-03-31 Measurement system for cracking of concrete

Publications (1)

Publication Number Publication Date
JPH02259513A true JPH02259513A (en) 1990-10-22

Family

ID=13734050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8099489A Pending JPH02259513A (en) 1989-03-31 1989-03-31 Measurement system for cracking of concrete

Country Status (1)

Country Link
JP (1) JPH02259513A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104180766A (en) * 2014-09-09 2014-12-03 南京林业大学 Frozen soil interface layer deformation measuring system and measuring method thereof
JP5688533B1 (en) * 2014-01-23 2015-03-25 デ・ファクト・スタンダード合同会社 Concrete structure maintenance management system
WO2017122641A1 (en) * 2016-01-15 2017-07-20 富士フイルム株式会社 Measurement assistance device and measurement assistance method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5688533B1 (en) * 2014-01-23 2015-03-25 デ・ファクト・スタンダード合同会社 Concrete structure maintenance management system
WO2015111735A1 (en) * 2014-01-23 2015-07-30 デ・ファクト・スタンダード合同会社 Concrete structure maintenance system
JP2015138467A (en) * 2014-01-23 2015-07-30 デ・ファクト・スタンダード合同会社 concrete structure maintenance management system
CN104180766A (en) * 2014-09-09 2014-12-03 南京林业大学 Frozen soil interface layer deformation measuring system and measuring method thereof
WO2017122641A1 (en) * 2016-01-15 2017-07-20 富士フイルム株式会社 Measurement assistance device and measurement assistance method
JPWO2017122641A1 (en) * 2016-01-15 2018-10-04 富士フイルム株式会社 Measurement support apparatus and measurement support method
US10740892B2 (en) 2016-01-15 2020-08-11 Fujifilm Corporation Measurement support apparatus and measurement support method

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