KR100473481B1 - Safety diagnosis apparatus for bridgr - Google Patents

Safety diagnosis apparatus for bridgr Download PDF

Info

Publication number
KR100473481B1
KR100473481B1 KR10-2004-0048886A KR20040048886A KR100473481B1 KR 100473481 B1 KR100473481 B1 KR 100473481B1 KR 20040048886 A KR20040048886 A KR 20040048886A KR 100473481 B1 KR100473481 B1 KR 100473481B1
Authority
KR
South Korea
Prior art keywords
wire
bridge
fixing frame
bridge deck
safety diagnosis
Prior art date
Application number
KR10-2004-0048886A
Other languages
Korean (ko)
Other versions
KR20040064253A (en
Inventor
김길평
성수복
Original Assignee
(주) 한국시설안전연구원
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 (주) 한국시설안전연구원 filed Critical (주) 한국시설안전연구원
Priority to KR10-2004-0048886A priority Critical patent/KR100473481B1/en
Publication of KR20040064253A publication Critical patent/KR20040064253A/en
Application granted granted Critical
Publication of KR100473481B1 publication Critical patent/KR100473481B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
    • 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
    • G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
    • 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
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
    • G01M5/0058—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems of elongated objects, e.g. pipes, masts, towers or railways
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/08—Detecting presence of flaws or irregularities
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Bridges Or Land Bridges (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

본 발명은 와이어를 이용한 교량상판의 안전진단장치에 관한 것으로서, 교량상판의 처짐이 허용변위 이상으로 발생되었을 경우 이를 즉시 경보기를 통해 파악할 수 있도록 하여 교량상판의 문제점을 파악하여 안전하게 대체할 수 있도록 하는 와이어를 이용한 교량상판의 안전진단장치에 관한 것이다.The present invention relates to a safety diagnosis device for a bridge deck using a wire, and when the deflection of the bridge deck occurs over an allowable displacement, it is possible to immediately grasp this through an alarm so that the bridge deck can be identified and safely replaced. The present invention relates to a safety diagnosis device for a bridge deck using a wire.

본 발명은, 교량상판 캠버에 유동변위 이상의 처짐이 발생하였을 경우 이를 감지할 수 있도록 설치되는 와이어를 이용한 교량상판의 안전진단장치에 있어서, 상기 와이어를 이용한 교량상판의 안전진단장치는, 교량 상판의 교각경간 상부 박스거더의 측면에 와이어 설치구 3개를 고정하여 변위측정 와이어를 설치하고, 교각 상부 측면에 고정틀을 설치하여 변위측정 와이어를 고정틀에 고정시켜, 교량상판 캠버의 처짐이 허용변위 이상으로 감지기에 감지가 되었을 때 고정틀에 부착된 발신안테나를 통해 경보기로 발신을 하도록 구성하는 것을 특징으로 하는 와이어를 이용한 교량상판의 안전진단장치를 제공한다.The present invention provides a safety diagnosing device for a bridge deck using a wire installed to detect a deflection or more than a flow displacement in a bridge deck camber, wherein the safety diagnosis device for a bridge deck using the wire is a bridge top plate. Displacement measuring wire is installed by fixing three wire fittings on the side of the pier upper box girder, and a fixing frame is installed on the upper side of the pier to fix the displacement measuring wire to the fixing frame. When detected by the detector provides a safety diagnosis device for the bridge deck using a wire, characterized in that configured to transmit to the alarm through the transmission antenna attached to the fixing frame.

Description

와이어를 이용한 교량상판의 안전진단장치{SAFETY DIAGNOSIS APPARATUS FOR BRIDGR}Safety diagnosis device for bridge deck using wire {SAFETY DIAGNOSIS APPARATUS FOR BRIDGR}

본 발명은 와이어를 이용한 교량상판의 안전진단장치에 관한 것으로서, 교량상판의 처짐이 허용변위 이상으로 발생되었을 경우 이를 즉시 경보기를 통해 파악할 수 있도록 하여 교량상판의 문제점을 파악하여 안전하게 대체할 수 있도록 하는 와이어를 이용한 교량상판의 안전진단장치에 관한 것이다.The present invention relates to a safety diagnosis device for a bridge deck using a wire, and when the deflection of the bridge deck occurs over an allowable displacement, it is possible to immediately grasp this through an alarm so that the bridge deck can be identified and safely replaced. The present invention relates to a safety diagnosis device for a bridge deck using a wire.

일반적으로 교량 구조물의 도 1과 같이 교각구조물(20)을 설치하고 그 상부에 교량상판(10)을 설치하는 방식으로 교량을 설치하고 있다.In general, as shown in Figure 1 of the bridge structure, the bridge structure 20 is installed and the bridge is installed in such a way as to install the bridge top plate 10 on the top.

그러나 기존의 교량에는 교량상판(10)의 허용변위 이상의 처짐을 체크하는 시설이 미흡하여 과적차량 통행으로 인한 교량 상판(10)에 균열(30)이 발생되었을 경우에도 정기적인 교량점검을 하기전에는 허용변위 이상으로 교량상판(10)이 작동하였는지의 문제점을 파악할 수 없어 교량구조물의 안전에 문제점이 나타나는 실정이다.However, existing bridges do not have sufficient facilities to check deflections beyond the allowable displacement of the bridge deck (10), so even if a crack (30) occurs on the bridge deck (10) due to the overloading of vehicles, it is allowed before conducting regular bridge inspections. The problem that the bridge top plate 10 has been operated over the displacement can not be grasped and the problem appears in the safety of the bridge structure.

본 발명은 상술한 문제점을 감안하여, 본 발명은, 교량상판의 처짐이 허용변위 이상으로 발생되었을 경우 이를 즉시 경보기를 통해 파악할 수 있도록 하여 교량상판의 문제점을 파악하여 안전하게 대체할 수 있도록 하는데 그 목적이 있다.The present invention in view of the above-described problems, the present invention, if the deflection of the bridge deck caused by more than the permissible displacement can be grasped immediately by the alarm to grasp the problem of the bridge deck to safely replace the object There is this.

본 발명은 상술한 목적달성을 위해, 본 발명은, 교량상판 캠버에 유동변위 이상의 처짐이 발생하였을 경우 이를 감지할 수 있도록 설치되는 와이어를 이용한 교량상판의 안전진단장치에 있어서, 상기 와이어를 이용한 교량상판의 안전진단장치는, 교량 상판의 교각경간 상부 박스거더의 측면에 와이어 설치구 3개를 고정하여 변위측정와이어를 설치하고, 교각 상부 측면에 고정틀을 설치하여 변위측정 와이어를 고정틀에 고정시켜, 교량상판 캠버의 처짐이 허용변위 이상으로 감지기에 감지가 되었을 때 고정틀에 부착된 발신안테나를 통해 경보기로 발신을 하도록 구성하는 것을 특징으로 하는 와이어를 이용한 교량상판의 안전진단장치를 제공한다.The present invention, in order to achieve the above object, the present invention, in the safety diagnosis device of the bridge deck using a wire installed to detect the deflection or more than the flow displacement in the bridge deck camber, the bridge using the wire The safety diagnosis device of the upper plate secures three wire mounting holes on the side of the upper box girder of the bridge span of the bridge plate, installs displacement measuring wires, and installs a fixing frame on the upper side of the bridge to fix the displacement measuring wire to the fixing frame. When the deflection of the bridge top camber is detected by the detector over the permissible displacement, it provides a safety diagnosis device for the bridge top using a wire, characterized in that configured to transmit to the alarm through the transmission antenna attached to the fixing frame.

이하, 첨부 도면을 참조하여 본 발명의 구성을 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention is demonstrated with reference to an accompanying drawing.

도 2는 본 발명의 와이어를 이용한 교량상판의 안전진단장치를 나타내는 측면도이다.Figure 2 is a side view showing a safety diagnosis device of the bridge deck using the wire of the present invention.

교량상판 캠버에 유동변위 이상의 처짐이 발생하였을 경우 이를 감지할 수 있도록 설치되는 와이어를 이용한 교량상판의 안전진단장치(300)에 있어서,In the safety diagnosis device 300 of the bridge deck using a wire that is installed to detect the deflection or more than the flow displacement in the bridge deck camber,

상기 와이어를 이용한 교량상판의 안전진단장치(300)는, 교량 상판(100)의 교각(200)경간 상부 박스거더의 측면에 와이어 설치구(310) 3개를 고정하여 변위측정와이어(320)를 설치하고, 교각(200) 상부 측면에 고정틀(330)을 설치하여 변위측정 와이어(320)를 고정틀(330)에 고정시켜, 교량상판(100) 캠버의 처짐이 허용변위 이상으로 감지기(323,333)에 감지가 되었을 때 고정틀(220)에 부착된 발신안테나 (334)를 통해 경보기(340)로 발신을 하도록 구성한다.Safety diagnosis device 300 of the bridge top plate using the wire, the three wire mounting holes 310 are fixed to the side of the upper box girder bridge 200 of the bridge top plate 100 to measure the displacement measurement wire 320 And the fixing frame 330 is installed on the upper side of the bridge 200 to fix the displacement measuring wire 320 to the fixing frame 330, so that the deflection of the camber of the bridge top plate 100 is greater than the permissible displacement to the detectors 323 and 333. When the detection is configured to transmit to the alarm 340 through the transmission antenna 334 attached to the fixing frame 220.

도 3은 본 발명의 와이어를 이용한 교량상판의 안전진단장치를 나타내는 개념도이며, 안전진단장치(300)는, 와이어 설치구(310), 변위측정 와이어(320), 고정틀(330), 경보기(340)로 구성된다.3 is a conceptual diagram showing a safety diagnosis device of the bridge deck using the wire of the present invention, the safety diagnosis device 300, the wire mounting hole 310, the displacement measuring wire 320, the fixing frame 330, the alarm 340 It is composed of

상기 와이어 설치구(310)는, 절구형 형태로 교량상판(100)의 교각(200) 경간 상부의 박스거더의 측면에 3개씩 양측으로 용접 고정되고,The wire fittings 310 are welded and fixed to both sides of the box girder in the upper section of the bridge 200 of the bridge top plate 100 in a mortar form,

상기 변위측정 와이어(320)는, 교량상판(100)의 측면에 부착된 상기 와이어 설치구(310)에 상기 변위측정 와이어(320)를 교각(200) 경간의 중앙부분에서는 아래부분에 있도록 설치하고, 교각(200)부위에서는 위쪽으로 있도록 설치하며, 상기 변위측정 와이어(320)의 양측에는 변위측정 와이어를 고정틀(330)에 고정하도록 스프링(321) 및 체결넛트(322)가 설치되고 끝부분에는 와이어 감지기(323)가 결합되도록 구성되며,The displacement measuring wire 320 is installed so that the displacement measuring wire 320 in the center portion of the bridge 200 in the lower portion in the wire mounting hole 310 attached to the side of the bridge top plate 100 , The pier 200 is installed so as to be upwards, and the spring 321 and the fastening nut 322 is installed on both sides of the displacement measuring wire 320 to the fixing frame 330, the end portion The wire detector 323 is configured to be coupled,

상기 고정틀(330)은, 교각(200)의 상부 측면에 체결앙카(331)로 고정되며, 상기 고정틀(330)의 상부에는 상기 변형측정 와이어(320)를 체결할 고정플레이트 (332)가 설치되고, 하부에는 발신안테나(334)가 부착된 고정틀 감지기(333)가 설치되어 상기 와이어 감지기(323)와 고정틀 감지기(333)가 접촉되었을 경우 발신안테나(334)를 통해 경보기(340)로 전파를 발신한다.The fixing frame 330 is fixed to the upper side of the pier 200 by a fastening anchor 331, the fixing plate 332 is provided on the upper portion of the fixing frame 330 to fasten the deformation measurement wire 320 In the lower part, a fixing frame detector 333 having an transmitting antenna 334 is installed, and when the wire detector 323 and the fixing frame detector 333 are in contact with each other, the radio wave is transmitted to the alarm 340 through the transmitting antenna 334. do.

상술한 구성에서 알 수 있듯이, 와이어를 이용한 교량상판의 안전진단장치 (300)는, 교량상판(100)이 허용변위 이상으로 작동되었을 경우 이를 경보기(340)를 통해 즉시 파악하여 현장에서의 교량 조사를 통해 교량의 안정성의 이상유무를 파악할 수 있도록 하였다.As can be seen in the above-described configuration, the safety diagnosis device 300 of the bridge deck using the wire, if the bridge deck 100 is operated above the permissible displacement, immediately grasping it through the alarm 340 to investigate the bridge in the field Through this, it is possible to identify the abnormality of the stability of the bridge.

상술한 본 발명의 구성에 의한 효과를 설명한다.The effect by the structure of this invention mentioned above is demonstrated.

본 발명의 와이어를 이용한 교량상판의 안전진단장치는, 교량상판과 교각구조물을 변형측정 와이어로 연결시켜 교량상판에 과다하중으로 인한 허용변위 이상의 처짐이 발생되었을 경우 이를 감지기를 통해 경보기로 쉽게 파악할 수 있어 교량구조물의 문제점 및 안전을 신속하게 대처할 수 있도록 한다.Safety diagnosis device of the bridge deck using the wire of the present invention, by connecting the bridge deck and the bridge structure with the strain measurement wire, if the deflection of more than the allowable displacement due to the overload on the bridge deck can be easily detected by the alarm through the detector Therefore, it can promptly cope with the problems and safety of the bridge structure.

도 1은 기존 교량상판의 문제점을 나타내는 도면.1 is a view showing a problem of the existing bridge deck.

도 2는 본 발명의 와이어를 이용한 교량상판의 안전진단장치를 나타내는 측면도.Figure 2 is a side view showing a safety diagnosis device of the bridge deck using the wire of the present invention.

도 3은 본 발명의 와이어를 이용한 교량상판의 안전진단장치를 나타내는 개념도.3 is a conceptual diagram showing a safety diagnosis device of the bridge deck using the wire of the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

100: 교량상판 200: 교각100: bridge deck 200: pier

300: 안전진단장치 310: 와이어 설치구300: safety diagnosis device 310: wire mounting

320: 변위측정 와이어 330: 고정틀320: displacement measurement wire 330: fixed frame

340: 경보기340: alarm

Claims (1)

교량상판 캠버에 유동변위 이상의 처짐이 발생하였을 경우 이를 감지할 수 있도록 설치되는 와이어를 이용한 교량상판의 안전진단장치(300)에 있어서,In the safety diagnosis device 300 of the bridge deck using a wire that is installed to detect the deflection or more than the flow displacement in the bridge deck camber, 상기 와이어를 이용한 교량상판의 안전진단장치(300)는, 교량 상판(100)의 교각(200)경간 상부 박스거더의 측면에 와이어 설치구(310) 3개를 고정하여 변위측정와이어(320)를 설치하고, 교각(200) 상부 측면에 고정틀(330)을 설치하여 변위측정 와이어(320)를 고정틀(330)에 고정시켜, 교량상판(100) 캠버의 처짐이 허용변위 이상으로 감지기(323,333)에 감지가 되었을 때 고정틀(220)에 부착된 발신안테나 (334)를 통해 경보기(340)로 발신을 하도록 구성하는 한편,Safety diagnosis device 300 of the bridge top plate using the wire, the three wire mounting holes 310 are fixed to the side of the upper box girder bridge 200 of the bridge top plate 100 to measure the displacement measurement wire 320 And the fixing frame 330 is installed on the upper side of the bridge 200 to fix the displacement measuring wire 320 to the fixing frame 330, so that the deflection of the camber of the bridge top plate 100 is greater than the permissible displacement to the detectors 323 and 333. When the detection is configured to transmit to the alarm 340 through the transmission antenna 334 attached to the fixing frame 220, 상기 와이어 설치구(310)는, 절구형 형태로 교량상판(100)의 교각(200) 경간 상부의 박스거더의 측면에 3개씩 양측으로 용접 고정되고,The wire fittings 310 are welded and fixed to both sides of the box girder in the upper section of the bridge 200 of the bridge top plate 100 in a mortar form, 상기 변위측정 와이어(320)는, 교량상판(100)의 측면에 부착된 상기 와이어 설치구(310)에 상기 변위측정 와이어(320)를 교각(200) 경간의 중앙부분에서는 아래부분에 있도록 설치하고, 교각(200)부위에서는 위쪽으로 있도록 설치하며, 상기 변위측정 와이어(320)의 양측에는 변위측정 와이어를 고정틀(330)에 고정하도록 스프링(321) 및 체결넛트(322)가 설치되고 끝부분에는 와이어 감지기(323)가 결합되도록 구성되며,The displacement measuring wire 320 is installed so that the displacement measuring wire 320 in the center portion of the bridge 200 in the lower portion in the wire mounting hole 310 attached to the side of the bridge top plate 100 , The pier 200 is installed so as to be upwards, and the spring 321 and the fastening nut 322 is installed on both sides of the displacement measuring wire 320 to the fixing frame 330, the end portion The wire detector 323 is configured to be coupled, 상기 고정틀(330)은, 교각(200)의 상부 측면에 체결앙카(331)로 고정되며, 상기 고정틀(330)의 상부에는 상기 변형측정 와이어(320)를 체결할 고정플레이트 (332)가 설치되고, 하부에는 발신안테나(334)가 부착된 고정틀 감지기(333)가 설치되어 상기 와이어 감지기(323)와 고정틀 감지기(333)가 접촉되었을 경우 발신안테나(334)를 통해 경보기(340)로 전파를 발신하도록 구성하는 것을 특징으로 하는 와이어를 이용한 교량상판의 안전진단장치.The fixing frame 330 is fixed to the upper side of the pier 200 by a fastening anchor 331, the fixing plate 332 is provided on the upper portion of the fixing frame 330 to fasten the deformation measurement wire 320 In the lower part, a fixing frame detector 333 having an transmitting antenna 334 is installed, and when the wire detector 323 and the fixing frame detector 333 are in contact with each other, the radio wave is transmitted to the alarm 340 through the transmitting antenna 334. Safety diagnosis device for the bridge deck using a wire, characterized in that configured to.
KR10-2004-0048886A 2004-06-28 2004-06-28 Safety diagnosis apparatus for bridgr KR100473481B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2004-0048886A KR100473481B1 (en) 2004-06-28 2004-06-28 Safety diagnosis apparatus for bridgr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2004-0048886A KR100473481B1 (en) 2004-06-28 2004-06-28 Safety diagnosis apparatus for bridgr

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR20-2004-0018219U Division KR200362380Y1 (en) 2004-06-28 2004-06-28 Safety diagnosis apparatus for bridgr

Publications (2)

Publication Number Publication Date
KR20040064253A KR20040064253A (en) 2004-07-16
KR100473481B1 true KR100473481B1 (en) 2005-03-14

Family

ID=37354871

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2004-0048886A KR100473481B1 (en) 2004-06-28 2004-06-28 Safety diagnosis apparatus for bridgr

Country Status (1)

Country Link
KR (1) KR100473481B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100585336B1 (en) 2006-01-02 2006-05-30 (재) 한국건설품질연구원 Bridge cantilever safe diagnostic equipment
KR100815552B1 (en) 2008-01-02 2008-03-20 (재)한국건설안전기술원 Safety diagnosis structure for senseing the twists of bridge's upper plate
KR101164892B1 (en) 2012-04-27 2012-07-19 (주) 일신이앤씨 A safety inspecting device of an upboard in bridges
KR20180083198A (en) * 2017-01-12 2018-07-20 두산중공업 주식회사 Measuring Apparatus For Crane Girder, And Operating Method Thereof
KR101968531B1 (en) * 2018-11-23 2019-04-29 (주)양지 Apparatus for measuring bridge deflection and system having the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100661055B1 (en) * 2006-06-19 2006-12-22 주식회사 삼림엔지니어링 Measurement apparatus for safety check-up of bridge
KR200443692Y1 (en) * 2009-01-14 2009-03-11 (주)한국해외기술공사 Safety check-up apparatus for steel box slab section of bridge
KR100921706B1 (en) * 2009-03-18 2009-10-15 (주)대영구조기술단 Safety examine equipment and earthquake-proof reinforcement equipment to superannuation construction a structure
CN106247921B (en) * 2016-07-15 2018-12-07 广州大学 High-precision bridge deformation detection method based on RF phse measuring technique
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
KR102264853B1 (en) * 2017-07-24 2021-06-14 세메스 주식회사 Apparatus for sensing deflection of OHT rail

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100585336B1 (en) 2006-01-02 2006-05-30 (재) 한국건설품질연구원 Bridge cantilever safe diagnostic equipment
KR100815552B1 (en) 2008-01-02 2008-03-20 (재)한국건설안전기술원 Safety diagnosis structure for senseing the twists of bridge's upper plate
KR101164892B1 (en) 2012-04-27 2012-07-19 (주) 일신이앤씨 A safety inspecting device of an upboard in bridges
KR20180083198A (en) * 2017-01-12 2018-07-20 두산중공업 주식회사 Measuring Apparatus For Crane Girder, And Operating Method Thereof
KR101968531B1 (en) * 2018-11-23 2019-04-29 (주)양지 Apparatus for measuring bridge deflection and system having the same

Also Published As

Publication number Publication date
KR20040064253A (en) 2004-07-16

Similar Documents

Publication Publication Date Title
KR100473481B1 (en) Safety diagnosis apparatus for bridgr
RU2441788C2 (en) Railway voltage monitoring system
US6901818B1 (en) Tension measuring device for mooring line
US3992934A (en) Mooring device
JP5004955B2 (en) Strain detector and strain detection system
JP4102760B2 (en) measuring device
KR200443692Y1 (en) Safety check-up apparatus for steel box slab section of bridge
JP5614735B2 (en) Measuring system of tunnel lining behavior during earthquake
KR200362380Y1 (en) Safety diagnosis apparatus for bridgr
KR100636897B1 (en) A measuring device for safety testing on a part offlexible coupling in bridge
AU2016214181B2 (en) A rail clamp
CN106770481B (en) Bridge sling monitoring sensor
KR100473480B1 (en) Measure apparatus for safety check-up of bridge
JP7303455B2 (en) Looseness detection structure and looseness detection method using the structure
KR100457376B1 (en) Safety diagnosis apparatus for camber measurement of bridge
KR100857154B1 (en) Apparatus for diagnostic hang down of bridge upper intrastructure
KR100585336B1 (en) Bridge cantilever safe diagnostic equipment
CN110057872A (en) A kind of cable fracture of wire monitoring method based on detection self inductance effect inductance
JP4953473B2 (en) Pressure device for lateral pressure calibration
KR100952593B1 (en) A measuring device for expansion and contraction of a bridge
KR102140580B1 (en) Power Transmission Tower Diagnostic System and Method
KR200369967Y1 (en) Measure apparatus for safety check-up of bridge
KR20040103867A (en) Safety diagnosis apparatus for construction
KR100490957B1 (en) Safety diagnosis apparatus for construction
KR200265796Y1 (en) A system using a laser device for inspecting a safety of a road structure

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
N231 Notification of change of applicant
FPAY Annual fee payment

Payment date: 20100208

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee