KR100636897B1 - A measuring device for safety testing on a part offlexible coupling in bridge - Google Patents

A measuring device for safety testing on a part offlexible coupling in bridge Download PDF

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Publication number
KR100636897B1
KR100636897B1 KR1020050109334A KR20050109334A KR100636897B1 KR 100636897 B1 KR100636897 B1 KR 100636897B1 KR 1020050109334 A KR1020050109334 A KR 1020050109334A KR 20050109334 A KR20050109334 A KR 20050109334A KR 100636897 B1 KR100636897 B1 KR 100636897B1
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South Korea
Prior art keywords
bridge
sensor
expansion joint
safety
measuring device
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KR1020050109334A
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Korean (ko)
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이상민
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비앤티엔지니어링(주)
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/002—Constructional details of contacts for gauges actuating one or more contacts
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

A measuring system for testing safety of an expansion joint of a bridge is provided to alarm abnormal contraction or expansion of the bridge to an administrator, and to cut down cost by detecting abnormal displacement of the bridge with a sensor and indicating a detection signal with a check signal lamp. A slab(40) of a bridge is placed in an expansion joint(50) in which slabs of the bridge are faced to each other, and a safety testing measuring system of the expansion joint of the bridge is composed of a detection sensor(10) installed at an end of the slab of the bridge and a detection bar(20) installed at an end of the other slab opposed to the slab of the bridge. A check signal lamp(30) is installed in a road, connected to the detection sensor through a cable(C) and turned on by an electric signal of the detection sensor in moving the detection bar. The state of the bridge is checked by detecting displacement of the bridge and turning on the check signal lamp.

Description

교량 신축이음부 안전진단용 계측장치{A measuring device for safety testing on a part offlexible coupling in bridge}A measuring device for safety testing on a part of flexible coupling in bridge}

도 1a 내지 도 1b는 종래 기술에 따른 교량 신축이음부 안전진단장치의 설치상태를 보인 도면. 1a to 1b is a view showing the installation state of the bridge safety joint device according to the prior art.

도 2는 본 발명에 따른 교량용 신축이음부 안전진단용 계측장치의 설치 실시예를 보인 도면.Figure 2 is a view showing an embodiment of the installation of the measuring device for safety diagnosing expansion joints for bridges according to the present invention.

도 3은 본 발명에 따른 교량용 신축이음부 안전진단용 계측장치의 전체적인 구성을 도시한 사시도.Figure 3 is a perspective view showing the overall configuration of the safety diagnosing measuring device for expansion joints for bridges according to the present invention.

<도면의 주요부위에 대한 부호설명><Code Description of Major Parts of Drawing>

10...감지센서10 ... detection sensor

20...감지바20.Sense bar

30...점검신호등30.Check Signal Light

40...교량 상판40.Bridge Tops

50...신축이음구간50 ... Expansion joint section

본 발명은 교량용 신축이음부의 안전진단용 계측장치에 관한 것으로 특히, 교량 상판의 신축 이음구간에 센서 및 이 센서와 연계된 감지바를 설치하여 교량 상판의 신축 이음부 간격이 안전 수치 이상 신축하는 현상이 발생하거나 또한 처짐 현상이 발생될 시 이를 교량 관리자에게 신속히 알려주어 안전 조치를 취할 수 있게 함에 따라 교량 붕괴와 같은 대형 안전 사고를 미연에 방지할 수 있도록 한 교량용 신축이음부의 안전진단용 계측장치에 관한 것이다.The present invention relates to a measuring device for the safety diagnosis of the expansion joint of the bridge, in particular, the installation of the sensor and the sensing bar associated with the sensor in the expansion joint section of the bridge top plate expansion and contraction of the expansion joint of the bridge top plate more than a safe value Measuring device for safety diagnosis of new expansion joints for bridges to prevent large-scale safety accidents such as bridge collapse by notifying the bridge manager promptly when safety occurs or sag occurs. It is about.

일반적으로, 도로구조물 특히 교량의 경우에 다수의 상판이 좌우 길이방향으로 연결되어 있으며, 이러한 상판의 연결부위는 여름철이나 겨울철 온도변화에 따라 변화되는 길이에 대처하기 위하여 일정한 틈새인 신축이음부가 형성된다.In general, in the case of road structures, especially bridges, a plurality of top plates are connected in the longitudinal direction, and the connecting portions of the top plates are formed with expansion joints having a predetermined gap in order to cope with the lengths changed by temperature changes in summer or winter. do.

이와 같은 신축이음부는, 그 변화량이 교량의 수명이나 강도에 많은 영향을 미치는 것으로 수시로 점검하고 체크하여 교량의 상태를 파악할 필요가 있다.Such expansion joints need to be checked and checked from time to time to determine the condition of the bridge as the amount of change greatly affects the life and strength of the bridge.

일반적으로 상기와 같은 신축이음부 간격을 측정하기 위하여는 점검자가 별개로 준비된 측정도구로써 각각의 신축이음부 간격을 측정하여야 하므로 계측하는데 많은 인력과 시간이 소요될 뿐 아니라 안전사고의 위험과 차량통제 등의 문제점이 발생되었다.In general, in order to measure the distance between expansion joints, the inspector needs to measure the distance between each expansion joint as a separate measuring tool, so it takes a lot of manpower and time to measure the risk of safety accidents and vehicle control. A problem has occurred.

이와 같은 문제점을 해결하기 위하여 도로 구조물 및 교량의 안전진단용 측 정시스템이 등록실용신안공보 제265797호에 의해 개시된 바 있다. 즉, 도 1a 내지 도 1b에서와 같이 종래 기술은, 상판사이의 공간(R)에 설치되고 표면에 눈금(2a)이 표기된 눈금판(2)이 일측 상판(T1)의 끝단부 측면에 고정구(1)로써 교량의 길이 방향으로 고정되며, 끝단부에 지시침(4a)이 형성된 측정핀(4)이 타측상판(T2)의 끝단부 측면에 고정구(3)로써 교량의 길이 방향으로 고정되는 한편, 상기 눈금판(2)과 지시판(4)은 상,하방향으로 위치되어 지시침(4a)이 가르키는 눈금판(2)의 눈금을 확인하여 교량의 변위량 즉, 신축량을 측정할 수 있게끔 된 구성으로 이루어진다.In order to solve this problem, a safety diagnosis measurement system for road structures and bridges has been disclosed by Korean Utility Model Publication No. 265797. That is, in the prior art, as shown in Figure 1a to Figure 1b, the grid plate 2 is installed in the space (R) between the top plate and the scale (2a) is marked on the surface of the fastener (1) Fixed in the lengthwise direction of the bridge, and the measuring pin 4 having the indicator needle 4a formed at the end thereof is fixed in the longitudinal direction of the bridge with the fixture 3 at the end side of the other upper plate T2, The scale plate 2 and the indicator plate 4 are positioned in the up and down directions to check the scale of the scale plate 2 pointed by the indicator needle 4a so as to measure the displacement amount, that is, the amount of expansion and contraction of the bridge. Is done.

그러나, 위와 같은 종래 안전진단용 측정시스템은, 작업자가 현장에가서 그 눈금을 직접체크 해야하므로 수시로 관리가 이루어져야만 하고, 육안 식별에 의해 변위량을 측정함으로써 교량 변위에 대한 정확한 판독이 힘들다는 단점이 있다.However, the conventional safety diagnostic measurement system as described above has a disadvantage in that it is difficult to accurately read the bridge displacement by measuring the displacement amount by visual identification since the operator must check the scale directly by going to the site. .

본 발명은 상기한 문제점을 감안하여 이를 해결하고자 안출한 것으로 그 목적은, 교량 신축이음부의 마주보는 양단부에 변위발생을 감지하는 센서 및 감지바를 설치하고 이상변위 발생시 상기 센서로부터 감지된 전기신호는 케이블을 거쳐 도로상에 설치되는 신호수단을 통해 외부에 보여지도록 하므로서, 신축이음부의 간격이 안전 수치 이상 신축하였음을 교량 관리자에게 신속히 알려줄 수 있으며, 이에 따라 교량 상태를 수시로 점검할 필요가 없어서 교량점검에 따른 비용 및 인력소모를 줄일 수 있는 교량용 신축이음부의 안전진단용 계측장치를 제공하는 데에 있다.The present invention has been made in view of the above problems, the object of the present invention is to install a sensor and a sensing bar for detecting the occurrence of displacement at both ends facing the bridge expansion joint and the electrical signal detected from the sensor when abnormal displacement occurs It can be shown to the outside through the signal means installed on the road through the cable, so that the bridge manager can be quickly informed that the space between the expansion joints has been expanded beyond the safety value, and thus it is not necessary to check the bridge status from time to time. The present invention is to provide a measuring device for safety diagnosis of a new expansion joint for a bridge that can reduce the cost and manpower consumption of the inspection.

상기한 목적을 달성하기 위한 기술적인 수단으로서 본 발명인 교량용 신축이음부의 안전진단용 계측장치는, 교량 상판 신축이음부의 간격이 안전 수치 이상 신축하였음을 교량 관리자에게 신속히 알려주기 위하여, 교량 상판이 서로 마주하는 신축이음구간에 어느 하나의 교량 상판 일측 선단에 설치되는 감지센서와, 신축이음구간에서 상기 교량 상판과 마주하는 다른 하나의 교량 상판 일측 선단에 설치되는 감지바를 포함하는 교량 신축이음부 안전진단용 계측장치에 있어서,
상기 감지센서와 케이블을 통해 연결되어 교량 신축 시 상기 감지바에 유동에 따라 발생되는 감지센서의 전기신호로 인하여 점등이 이루어지는 점검신호등이 도로 상에 설치되는 것을 특징으로 한다.As a technical means for achieving the above object, the measuring device for safety diagnosis of the expansion joint for a bridge according to the present invention, the bridge top plate to promptly inform the bridge manager that the distance between the expansion joint of the bridge top plate has expanded beyond the safety value. Bridge expansion joint safety including a sensor installed on one end of the bridge top plate facing each other, and a sensing bar installed on one end of the other bridge top facing the bridge top in the expansion joint section In the diagnostic measuring device,
Is connected through the sensor and the cable is characterized in that the check signal light is turned on due to the electrical signal of the sensor generated in accordance with the flow in the detection bar when the bridge is built and installed on the road.

삭제delete

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 교량용 신축이음부 안전진단용 계측장치의 설치 실시예를 보인 도면으로서, 교량을 구성하는 교각 코핑(도면부호 미기재)과 빔거더(44) 사이에는 받침시설인 교좌장치(60)가 설치되고, 상기 빔거더(44)의 상부에는 교량 슬래브(42)가 형성된다(이하에서는 "빔거더 및 교량 슬래브"를 "교량 상판(40)"이라 통칭한다). 그리고 교좌장치(60)에 지지되는 하나의 교량 상판(40)과 이와 이웃 하는 다른 교량 상판 사이에는 대기온도차에 따른 교량 상판 신축시 신축에 따른 보상공간을 제공하기 위한 신축이음구간(50)이 마련되며, 이와 같은 신축이음구간(50)에는 교량 상판(40)의 신축변위시 그 변위량을 측정할 수 있는 안전진단 계측장치가 설치된다. Figure 2 is a view showing an embodiment of the installation of the measuring device for safety diagnosing expansion joints for the bridge according to the present invention, between the bridge pier coping (not shown) and the beam girder 44 constituting the bridge bridge supporting device ( 60 is provided, and a bridge slab 42 is formed on the beam girder 44 (hereinafter, "beam girder and bridge slab" will be referred to as "bridge top plate 40"). In addition, between one bridge deck 40 supported by the bridge device 60 and another bridge deck adjacent thereto, a new joint section 50 is provided to provide a compensation space according to the construction when the bridge deck is constructed according to the atmospheric temperature difference. The expansion joint section 50 is provided with a safety diagnosis measuring device that can measure the amount of displacement during expansion and contraction of the bridge top plate 40.

본 발명에 적용된 상기 안전진단 계측장치는, 도 2내지 도 3의 분리 사시도에서와 같이, 신축이음구간(50)이 형성된 교량 상판(40) 일측에 설치되는 감지센서(10)와, 이 감지센서(10)와 동일 수평면 상의 신축이음구간(50) 교량 상판 타측에 설치되는 감지바(20)와, 감지센서(10)와 연계된 점검신호등(30)으로 구성된다. The safety diagnosis measuring device applied to the present invention, as shown in the separated perspective view of Figures 2 to 3, the sensor 10 is installed on one side of the bridge upper plate 40, the expansion joint section 50 is formed, and the detection sensor It consists of a detection bar 20 installed on the other side of the expansion joint section 50 bridge top plate on the same horizontal plane as 10, and the check signal light 30 associated with the detection sensor 10.

상기 감지센서(10)는 스위칭 접속방식으로 감지바(20) 연장축선상의 센서박스(12) 중앙부에 스위치(14)가 마련되어 교량 신축에 따른 감지바(20)의 유동에 따라 그 접속이 제어될 수 있게 구성된다. 이러한 감지센서(10) 일면에는 신축이음구간이 형성된 교량 상판 일측면에 이를 고정시킬 수 있게 플랜지(16)가 형성되어 볼트(B)와 같은 체결부재를 통해 신축이음구간(50)의 교량 상판(40)이 일측에 체결되어 고정된다.The sensor 10 has a switch 14 is provided in the center of the sensor box 12 on the extension axis of the sensing bar 20 in a switching connection method, the connection of the sensor 10 according to the flow of the sensing bar 20 according to the construction of the bridge can be controlled. It is configured to be. On one side of the sensor 10, a flange 16 is formed on one side of the bridge top plate on which the expansion joint section is formed, and the bridge upper plate of the expansion joint section 50 through a fastening member such as a bolt (B). 40) is fastened to one side and fixed.

상기 감지바(220)는 기다란 봉 형상으로 그 일측 선단에는 볼팅공이 천공된 플랜지(22)가 형성되어 있어서 이를 통해 상기 감지센서(10)와 마주보는 위치의 신축이음구간(50) 타측 교량상에 체결되어 고정된다. The sensing bar 220 has an elongated rod shape, and a flange 22 having a boring hole is formed at one end thereof, so that the other side of the expansion joint section 50 facing the sensing sensor 10 is formed on the other bridge. It is fastened and fixed.

점검신호등(30)은 도로 상에 설치되며 상기 감지센서(10)와 케이블(C)을 통해 연결되어 감지센서(10)로부터 인가된 전기신호에 의해 점등된다. 이러한 점검신호등(30)은 신호등 본체(32)가 기다란 봉형상의 지지대(34) 상부 끝단에 설치되어 지면으로부터 일정거리 이격된 상태에서 지지되어 있으며, 지지대(34) 하부 끝단에는 브라켓(36)이 구비되어 있어서 이를 통해 지면상에 안전하게 고정된다.The check signal light 30 is installed on the road and is connected by the sensing sensor 10 and the cable C to be turned on by an electrical signal applied from the sensing sensor 10. The check signal light 30 is installed at the upper end of the rod-shaped support 34 having a long length of the traffic light main body 32 and is supported at a predetermined distance from the ground, and the bracket 36 is provided at the lower end of the support 34. It is secured on the ground through this.

즉, 전술한 구성과 같이, 본 발명에 적용된 상기 안전진단 계측장치는, 교량 신축이음부의 신축변위량을 측정하기 위해 신축이음구간(50)의 교량 상판(40) 끝단 일측에 감지센서(10)가 설치되고, 상기 교량 상판(40)과 마주하는 다른 교량 상판(40)의 끝단 일측에는 상기 감지센서(10)와 동일 수평면상에서 이 감지센서(10)와 마주보게끔 감지바(20)가 설치되며, 도로 상에는 상기 감지센서(10)와 케이블(C)을 통해 연결되어 감지센서(10)로부터 인가된 전기신호로 인하여 점등이 이루어지는 점검신호등(30)이 설치되는 것이다.That is, as described above, the safety diagnostic measurement device applied to the present invention, the sensor 10 to the end of the bridge top plate 40 end of the expansion joint section 50 to measure the amount of expansion and displacement of the bridge expansion joint portion Is installed, one end of the other bridge top plate 40 facing the bridge top plate 40, the detection bar 20 is installed so as to face the detection sensor 10 on the same horizontal surface as the detection sensor 10 On the road, a check signal light 30 which is connected to the sensor 10 through the cable C and is turned on due to an electric signal applied from the sensor 10 is installed.

여기에서, 상기 감지바(20)를 설치함에 있어서 중요하게 고려되어야 할 점이 감지바의 축방향 길이이다. 즉, 상기 감지바(20)의 축방향 길이에 따라 교량 상판 사이에 설치되는 감지센서(10)와 감지바(20) 간 이격간격이 조절되며, 이러한 이격간격은 교량 상판의 신축변위에 따른 위험수치를 판단하는 중요한 요소가 되기 때문이다. 따라서, 상기 감지바(20)의 축방향 길이는 평소에는 상기 감지센서(10)와 일정 이격거리를 유지하고 있다가 위험 간격 이상으로 교량 상판이 변형됐을 때 감지바(20)가 감지센서(10)에 닿아 감지센서를 작동시킬 수 있을 만큼의 길이를 갖도록 제작,설치하는 것이 중요할 것이다.Here, an important point to be considered in installing the sensing bar 20 is the axial length of the sensing bar. That is, the separation interval between the detection sensor 10 and the detection bar 20 is installed between the bridge top plate according to the axial length of the detection bar 20 is adjusted, such a separation gap is a risk due to the expansion and contraction of the bridge top plate This is because it is an important factor in determining the number. Therefore, the axial length of the detection bar 20 is normally maintained at a predetermined distance from the detection sensor 10, but when the bridge top plate is deformed over a dangerous interval, the detection bar 20 is the detection sensor 10 It will be important to make and install the product so that it is long enough to operate the sensor.

위와 같은 구성으로 이루어진 본 발명의 작동을 살펴보면 다음과 같다.Looking at the operation of the present invention made of the above configuration as follows.

전술한 바와 같은 설치,구성을 갖는 본 발명은, 대기 복사열의 영향을 받아 교량 상판이 팽창하면 감지바(20)와 감지센서(10)는 서로 마주보는 방향으로 이동 하여 근접거리를 유지하게 된다. 이 때, 상기 감지바(20)와 감지센서(10)의 근접거리가 교량 상판 신축이음구간(50)의 이음새 간격의 안전 수치 이상으로 확대될 경우 감지센서(10)와 감지바(20)는 서로 접촉하여 감지센서(10)로부터 점검신호등(30) 점등과 관련된 전기신호를 발생시킨다. 감지센서(10)와 케이블(C)을 통해 연결된 점검신호등(30)은 상기 전기신호를 인가받아 점등되어 교량의 이상신호를 통보하게 된다. 따라서, 작업자 또는 관리자는 도로 상에 설치된 점검신호등의 이상 점등신호를 확인한 후 후속조치를 취하여 교량 이상유무 및 안점점검을 행할 수 있게 되는 것이다.According to the present invention having the above-described installation and configuration, when the bridge top plate is expanded under the influence of atmospheric radiant heat, the detection bar 20 and the sensor 10 move in a direction facing each other to maintain a close distance. At this time, when the proximity distance between the detection bar 20 and the detection sensor 10 is expanded beyond the safety value of the seam gap of the bridge top expansion joint section 50, the detection sensor 10 and the detection bar 20 In contact with each other to generate an electrical signal associated with the lighting of the check signal light (30) from the sensor 10. The check signal light 30 connected to the sensing sensor 10 and the cable C is turned on by receiving the electric signal to notify an abnormal signal of the bridge. Therefore, the operator or the manager can check the abnormal lighting signal of the inspection signal lamp installed on the road, and then take follow-up measures to perform the bridge abnormality check and eye check.

즉, 본 발명인 교량 신축이음부 안전진단용 계측장치는, 교량 상판 간의 이음새 간격이 위험수치에 도달하기 전에 감지센서(10)가 이를 감지하여 도로상에 설치된 점검신호등을 점등시킴으로써, 외부에서 점검신호등의 점등여부를 살피는 것만으로 교량의 이상유무를 쉽게 판별할 수 있는 것이다.That is, the inventors of the measurement device for safety diagnosis of bridge expansion joint of the present invention, by detecting the detection sensor 10 before the seam gap between the bridge top plate reaches a dangerous value, and lights the inspection signal installed on the road, It is easy to determine whether the bridge is abnormal by simply checking whether it is lit.

이상에서 살펴본 바와 같이, 본 발명인 교량 신축이음부 안전진단용 계측장치에 의하면, 교량 상판의 이상변위 발생시 센서가 이를 감지하고 감지된 신호는 케이블을 거쳐 도로상에 설치되는 점검신호등을 통해 외부에 통보됨에 따라, 신축이음부의 간격이 안전 수치 이상 신축하였음을 교량 관리자에게 신속히 알려줄 수 있으며, 이에 따라 교량 상태를 수시로 점검할 필요가 없어서 비용 및 인력소모를 줄일 수 있는 효과가 있다.As described above, according to the measuring device for safety diagnosis of the bridge expansion joint of the present invention, when an abnormal displacement of the bridge top plate occurs, the sensor detects this and the detected signal is notified to the outside through a check signal installed on the road through a cable Accordingly, it is possible to promptly notify the bridge manager that the spacing of the new joint is more than the safety value, thereby reducing the cost and manpower consumption because there is no need to check the bridge condition from time to time.

Claims (2)

교량 상판 신축이음부의 간격이 안전 수치 이상 신축하였음을 교량 관리자에게 신속히 알려주기 위하여, 교량 상판이 서로 마주하는 신축이음구간(50)에 위치하는 어느 하나의 교량 상판(40) 일측 선단에 설치되는 감지센서(10)와, 상기 신축이음구간(50)에서 상기 교량 상판(40)과 마주하는 다른 하나의 교량 상판 일측 선단에 설치되는 감지바(20)를 포함하는 교량 신축이음부 안전진단용 계측장치에 있어서, In order to promptly inform the bridge manager that the spacing of the bridge deck expansion joints is greater than or equal to the safety value, the bridge deck is installed at one end of one of the bridge deck 40 located in the expansion joint section 50 facing each other. Measuring device for safety diagnosis of bridge expansion joint including a sensor 10 and the detection bar 20 is installed at one end of the other bridge top plate facing the bridge top plate 40 in the expansion joint section 50 To 상기 감지센서(10)와 케이블(C)을 통해 연결되어 교량 신축 시 상기 감지바(20)에 유동에 따라 발생되는 감지센서(10)의 전기신호로 인하여 점등이 이루어지는 점검신호등(30)이 도로 상에 설치되는 것을 특징으로 하는 교량 신축이음부 안전진단용 계측장치.The check signal light 30 connected to the sensor 10 through a cable C is turned on due to an electric signal of the sensor 10 generated by the flow of the detection bar 20 when the bridge is newly constructed. Measuring device for safety diagnosis of bridge expansion joint characterized in that it is installed on. 삭제delete
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917659B1 (en) * 2009-03-09 2009-09-18 한세이엔씨(주) The safety diagnosis device of expansion joint for bridge structure
KR101872431B1 (en) 2017-05-11 2018-06-28 한국도로공사 Apparatus for Measuring Laying-Gap of Expansion Joint of Bridge
KR102038100B1 (en) 2019-08-08 2019-10-30 한세이엔씨(주) Safety diagnosis system for measuring displacement of bridge expansion joint, and method for the same
CN110849237A (en) * 2019-12-04 2020-02-28 王俊华 Monitoring and connecting device for highway bridge expansion joint
CN112523077A (en) * 2020-12-24 2021-03-19 郑燊 Bridge expansion joint width monitoring and early warning device
CN112880544A (en) * 2021-01-13 2021-06-01 马洲 Bridge expansion joint alarm device for road engineering
CN115821737A (en) * 2022-11-11 2023-03-21 灌南畅安交通工程有限公司 Highway bridge engineering expansion joint detection device and use method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1004796770000

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917659B1 (en) * 2009-03-09 2009-09-18 한세이엔씨(주) The safety diagnosis device of expansion joint for bridge structure
KR101872431B1 (en) 2017-05-11 2018-06-28 한국도로공사 Apparatus for Measuring Laying-Gap of Expansion Joint of Bridge
KR102038100B1 (en) 2019-08-08 2019-10-30 한세이엔씨(주) Safety diagnosis system for measuring displacement of bridge expansion joint, and method for the same
CN110849237A (en) * 2019-12-04 2020-02-28 王俊华 Monitoring and connecting device for highway bridge expansion joint
CN110849237B (en) * 2019-12-04 2020-06-12 王俊华 Monitoring and connecting device for highway bridge expansion joint
CN112523077A (en) * 2020-12-24 2021-03-19 郑燊 Bridge expansion joint width monitoring and early warning device
CN112523077B (en) * 2020-12-24 2022-03-29 郑燊 Bridge expansion joint width monitoring and early warning device
CN112880544A (en) * 2021-01-13 2021-06-01 马洲 Bridge expansion joint alarm device for road engineering
CN112880544B (en) * 2021-01-13 2022-09-09 马洲 Bridge expansion joint alarm device for road engineering
CN115821737A (en) * 2022-11-11 2023-03-21 灌南畅安交通工程有限公司 Highway bridge engineering expansion joint detection device and use method thereof
CN115821737B (en) * 2022-11-11 2023-09-15 灌南畅安交通工程有限公司 Highway bridge engineering expansion joint detection device and use method thereof

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