JPS57141501A - Measuring device for displacement of bridge girder - Google Patents

Measuring device for displacement of bridge girder

Info

Publication number
JPS57141501A
JPS57141501A JP2617281A JP2617281A JPS57141501A JP S57141501 A JPS57141501 A JP S57141501A JP 2617281 A JP2617281 A JP 2617281A JP 2617281 A JP2617281 A JP 2617281A JP S57141501 A JPS57141501 A JP S57141501A
Authority
JP
Japan
Prior art keywords
bridge girder
displacement
lever
life
girder
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
JP2617281A
Other languages
Japanese (ja)
Inventor
Yoshihisa Kaneko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KANEKO KEISOKU KOGYO
KANEKO KEISOKU KOGYO KK
Original Assignee
KANEKO KEISOKU KOGYO
KANEKO KEISOKU KOGYO 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 KANEKO KEISOKU KOGYO, KANEKO KEISOKU KOGYO KK filed Critical KANEKO KEISOKU KOGYO
Priority to JP2617281A priority Critical patent/JPS57141501A/en
Publication of JPS57141501A publication Critical patent/JPS57141501A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

PURPOSE:To ensure the static or dynamic measurement for the displacement of a bridge girder in an easy and accurate way, by providing a free mover touching across the bridge girder puls a life lever or setting movably a differential transformer and the life lever to both legs of the bridge girder. CONSTITUTION:In the static measurement for the displacement of a bridge girder, the upper end of each of the life lever 4 and free mover 2 which are set at the front faces n1 and n2 plus the back faces v1 and v2 of a bridge girder 22 is made to touch the center lower edge of a bridge girder 22l. Then a life motor 3 is actuated by a changeover switch, and the scale of the lever 4 is read at a moment the foam (b) of a level 5 comes to the center of the level. In the case of the dynamic measurement, the lower edge flange part of the girder 22l is held by a metal parts 20 to be held at four areas before/back and left/right the girder 22. When a life lever 14 has a displacement by the passing of a train, a coupling lever 11 also has a displacement via a slit (e) and a pin (d). Then the output of a differential transformer 10 is applied to a recorder M and a display 9 via a rectifier 26. In such way, the static or dynamic measureent is possible for the displacement of a bridge girder in an easy and accurate way.
JP2617281A 1981-02-26 1981-02-26 Measuring device for displacement of bridge girder Pending JPS57141501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2617281A JPS57141501A (en) 1981-02-26 1981-02-26 Measuring device for displacement of bridge girder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2617281A JPS57141501A (en) 1981-02-26 1981-02-26 Measuring device for displacement of bridge girder

Publications (1)

Publication Number Publication Date
JPS57141501A true JPS57141501A (en) 1982-09-01

Family

ID=12186113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2617281A Pending JPS57141501A (en) 1981-02-26 1981-02-26 Measuring device for displacement of bridge girder

Country Status (1)

Country Link
JP (1) JPS57141501A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146704U (en) * 1987-03-19 1988-09-28
JP2016050404A (en) * 2014-08-29 2016-04-11 東日本旅客鉄道株式会社 Abnormality detection method at support part of railway bridge
CN106643634A (en) * 2016-12-28 2017-05-10 湖南科技大学 Device for measuring water area-crossing bridge deflection and measurement method thereof
JP2019049095A (en) * 2017-09-07 2019-03-28 東海旅客鉄道株式会社 Deflection measuring device for railroad bridge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108940A (en) * 1974-01-31 1975-08-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108940A (en) * 1974-01-31 1975-08-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146704U (en) * 1987-03-19 1988-09-28
JP2016050404A (en) * 2014-08-29 2016-04-11 東日本旅客鉄道株式会社 Abnormality detection method at support part of railway bridge
CN106643634A (en) * 2016-12-28 2017-05-10 湖南科技大学 Device for measuring water area-crossing bridge deflection and measurement method thereof
JP2019049095A (en) * 2017-09-07 2019-03-28 東海旅客鉄道株式会社 Deflection measuring device for railroad bridge

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