KR20040083406A - Measure apparatus for safety check-up of bridge - Google Patents

Measure apparatus for safety check-up of bridge Download PDF

Info

Publication number
KR20040083406A
KR20040083406A KR1020040072368A KR20040072368A KR20040083406A KR 20040083406 A KR20040083406 A KR 20040083406A KR 1020040072368 A KR1020040072368 A KR 1020040072368A KR 20040072368 A KR20040072368 A KR 20040072368A KR 20040083406 A KR20040083406 A KR 20040083406A
Authority
KR
South Korea
Prior art keywords
bridge
fastening
plate
deformation
receiver
Prior art date
Application number
KR1020040072368A
Other languages
Korean (ko)
Other versions
KR100473480B1 (en
Inventor
김길평
성수복
Original Assignee
김길평
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 김길평 filed Critical 김길평
Priority to KR10-2004-0072368A priority Critical patent/KR100473480B1/en
Publication of KR20040083406A publication Critical patent/KR20040083406A/en
Application granted granted Critical
Publication of KR100473480B1 publication Critical patent/KR100473480B1/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
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/40—Caliper-like sensors
    • G01B2210/42—Caliper-like sensors with one or more detectors on a single side of the object to be measured and with a backing surface of support or reference on the other side
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/58—Wireless transmission of information between a sensor or probe and a control or evaluation unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

PURPOSE: A measurement apparatus for checking safety of a bridge is provided to prevent an accident by preventing an upper plate of the bridge from being deformed. CONSTITUTION: A measurement apparatus(400) measures deformation of an upper plate and a bridge supporter unit. A coupling bar(410) is fixed to an upper end of a bridge structure by using a set anchor(414). An actuator(420), a meter(440), and a sensor(430) are installed on the coupling bar(410). The actuator(420) is operated by means of a transceiver(450) so that a measurement pin(441) of the meter(440) is lifted up, allowing the sensor(430) to detect the movement of the measurement pin(441). An interval between the upper plate of the bridge and the measurement pin(441) is detected by the sensor(430).

Description

교량상판 안전진단용 변형측정장치{MEASURE APPARATUS FOR SAFETY CHECK-UP OF BRIDGE}Strain measurement device for safety diagnosis of bridge decks {MEASURE APPARATUS FOR SAFETY CHECK-UP OF BRIDGE}

본 발명은 교량상판 안전진단용 변형측정장치에 관한 것으로서, 교각구조물 상부에 교량상판의 처짐을 주기적으로 측정할 수 있도록 변형측정장치를 설치하여 교량상판의 과적하중에 의한 변형 발생시 변형측정장치를 통해 교량 안전의 문제점을 미연에 파악할 수 있도록 하여 교량의 보호할 수 있도록 하는 교량상판 안전진단용 변형측정장치에 관한 것이다.The present invention relates to a strain measuring device for safety diagnosis of a bridge deck, and to install a strain measuring device to periodically measure the deflection of the bridge deck on the top of a bridge structure, the bridge through the strain measurement device when deformation occurs due to an overload of the bridge deck. The present invention relates to a strain measuring device for safety diagnosis of bridge decks, which enables the protection of bridges by enabling the identification of safety problems.

일반적으로 교량은 도 1과 같이 교각구조물(10)을 설치하고, 그 상부에 교좌장치(20)를 설치하여 교량상판(30)을 거치하는 방식으로 교량을 시공하고 있다.In general, bridges are installed in a manner in which the bridge structure 10 is installed as shown in FIG. 1, and the bridge device 20 is mounted on the bridge structure 20 so as to mount the bridge top plate 30.

그러나, 기존의 교량은 교량상판(30)의 처짐으로 인한 변형을 미연에 파악하는 시설이 설치되어 있지 않아 교량상판(30)의 이상유무를 파악할 수 없어 교량상판(30)의 심한 처짐이나 교좌장치(20)의 변형 또는 교각시설물(10)의 침하가 발생되었을 경우 교량 안전에 심각한 문제점이 나타날 수 있는 것이 지금의 실정이다.However, since the existing bridge is not equipped with a facility to grasp the deformation due to the deflection of the bridge deck 30 in advance, it is not possible to determine whether there is an abnormality of the bridge deck 30, so that the bridge deck 30 severely sags or bridges If the deformation of the (20) or the settlement of the pier facility 10 occurs, it is now the situation that serious problems may appear in the bridge safety.

본 발명은 상술한 문제점을 감안하여, 본 발명은, 교량상판의 과다한 처짐이 발생되었을 경우 교각시설물의 상부에 설치된 변형측정장치를 통해 교량상판의 변형을 미연에 파악하도록 하여 안전하게 대처하여 교량의 대형사고를 예방할 수 있는 것을 그 목적으로 한다.In view of the above-described problems, the present invention, when excessive deflection of the bridge deck occurs, through the deformation measuring device installed on the upper portion of the bridge facility to grasp the deformation of the bridge deck in advance to safely handle the large size of the bridge Its purpose is to prevent accidents.

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

도 2는 본 발명의 교량상판 안전진단용 변형측정장치의 설치상태를 나타내는 단면도.Figure 2 is a cross-sectional view showing the installation state of the bridge plate safety diagnostic deformation measuring apparatus of the present invention.

도 3은 본 발명의 교량상판 안전진단용 변형측정장치의 분해상태를 나타내는 개념도.3 is a conceptual diagram showing an exploded state of the strain measuring apparatus for the safety diagnosis of the bridge deck of the present invention.

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

100: 교각구조물 200: 교좌장치100: bridge structure 200: bridge device

300: 교량상판 400: 변형측정장치300: bridge deck 400: strain measuring device

410: 체결대 411: 사각파이프410: fastening table 411: square pipe

412: 플레이트 413: 체결홀412: plate 413: fastening hole

414: 셋트앙카 415: 체결앙카414: set anchor 415: tightening anchor

420: 작동기 421: ㄱ자형 체결대420: Actuator 421: L-shaped fastener

422: 체결플레이트 423: 모터422: fastening plate 423: motor

424: 원형톱니 425: 수신기424: circular saw 425: receiver

430: 감지기 431: 사각박스430: detector 431: rectangular box

432: 감지센서 433: 송신기432: sensor 433: transmitter

440: 계측기 441: 측정핀440: instrument 441: measuring pin

450: 송,수신기450: transmitter and receiver

본 발명은 상술한 목적달성을 위해, 본 발명은, 교각구조물 사이의 상부에 교량상판의 변형을 측정하기 위하여 설치되는 교량상판 안전진단용 변형측정장치에 있어서, 상기 교량상판 안전진단용 변형측정장치는, 교각구조물 사이의 상부에 체결대를 셋트앙카를 이용하여 교각구조물 상단에 고정하고, 상기 체결대에 작동기와 계측기와 감지기를 설치하여 송,수신기를 이용하여 작동기를 작동시켜 계측기의 측정핀을 상부로 올려 감지기에서 측정핀의 톱니형태를 따라 이동을 감지토록 하여 송,수신기로 데이터를 송신하여 교량상판과 측정핀의 간격을 파악하여 주기적인 측정을 통해 교량상판의 변형을 측정할 수 있도록 구성하는 것을 특징으로 하는 교량상판 안전진단용 변형측정장치를 제공한다.The present invention, in order to achieve the above object, the present invention, in the bridge top plate safety diagnostic deformation measuring apparatus is installed in the upper part between the bridge structure to measure the deformation, the bridge plate safety diagnosis strain measuring device, Fasten the fasteners on the upper part of the pier structure using the set anchor on the upper part between the pier structures, and install the actuator, the measuring instrument and the detector on the fasteners, and operate the actuator using the transmitter and the receiver. Raise the sensor to detect the movement along the sawtooth of the measuring pin and send the data to the transmitter and receiver to determine the gap between the bridge deck and the measuring pin and to measure the deformation of the bridge deck through periodic measurements. Provided is a strain measuring device for safety diagnosis of a bridge deck.

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 교량상판 안전진단용 변형측정장치의 설치상태를 나타내는 단면도로서,2 is a cross-sectional view showing a state of installation of the strain measuring apparatus for safety diagnosis of the bridge deck of the present invention,

교각구조물(100) 사이의 상부에 교량상판(300) 및 교좌장치(200)의 변형을 측정하기 위하여 설치되는 교량상판 안전진단용 변형측정장치(400)는, 교각구조물(100) 사이의 상부에 체결대(410)를 셋트앙카(414)를 이용하여 교각구조물(100) 상단에 고정하고, 상기 체결대(410)에 작동기(420)와 계측기(440)와 감지기(430)를 설치하여 송,수신기(450)를 이용하여 작동기(420)를 작동시켜 계측기(440)의 측정핀(441)을 상부로 올려 감지기(430)에서 측정핀(441)의 톱니형태를 따라 이동을 감지토록 하여 송,수신기(450)로 데이터를 송신하여 교량상판(300)과 측정핀(441)의 간격을 파악하여 주기적인 측정을 통해 교량상판(300)의 변형을 측정할 수 있도록 구성한다.The bridge deck safety diagnosis strain measuring device 400 installed to measure the deformation of the bridge deck 300 and the bridge device 200 between the bridge structures 100 is fastened to an upper portion between the bridge structures 100. The stand 410 is fixed to the top of the pier structure 100 using the set anchor 414, and the actuator 420, the meter 440, and the detector 430 are installed on the fastening table 410 to transmit and receive the receiver. By operating the actuator 420 using the 450 to raise the measuring pin 441 of the measuring instrument 440 to the upper to detect the movement along the sawtooth shape of the measuring pin 441 in the detector 430 By transmitting data to the 450 to determine the gap between the bridge deck 300 and the measuring pin 441 is configured to measure the deformation of the bridge deck 300 through periodic measurement.

도 3은 본 발명의 교량상판 안전진단용 변형측정장치의 분해상태를 나타내는 개념도로서, 상기 교량상판 안전진단용 변형측정장치(400)는, 체결대(410)와 작동기(420), 감지기(430), 계측기(440), 송,수신기(450)로 구성되며,3 is a conceptual diagram illustrating an exploded state of the strain measuring apparatus for safety diagnosis of the bridge deck of the present invention, wherein the deformation measurement apparatus 400 for the safety diagnosis of the bridge deck includes a fastening table 410, an actuator 420, a detector 430, It is composed of a meter 440, a transmitter, a receiver 450,

상기 체결대(410)는, 사각파이프(411)의 양측에 체결홀(413)이 형성된 ㄱ-자형태의 플레이트(412)가 용접고정되어 셋트앙카(414)에 의해 교각구조물(100) 상단에 고정되고, 상기 사각파이프(411)의 중앙부위에는 체결앙카(415)가 다수개 용접고정되어 설치되며,The fastening table 410, the a-shaped plate 412 of the a-shaped plate 412 formed with fastening holes 413 on both sides of the square pipe 411 is welded fixed to the top of the pier structure 100 by a set anchor 414 It is fixed, a plurality of fastening anchors 415 are welded fixed to the central portion of the square pipe 411 is installed,

상기 작동기(420)는, 모터(423)에 원형톱니(424)가 부착되고, 측면에는 수신기(425)와 배터리(도면에 미도시)가 설치된 ㄱ자형 체결대(421)가 형성되며, 하부에는 체결플레이트(422)가 형성되어 상기 체결대(410)에 체결넛트로 고정되고,The actuator 420, a circular saw tooth 424 is attached to the motor 423, the side is formed with an L-shaped fastener 421, the receiver 425 and a battery (not shown) is installed, the lower portion The fastening plate 422 is formed and fixed to the fastening nut 410 by a fastening nut,

상기 감지기(430)는, 한측에 감지센서(432)가 설치되고, 사각박스(431) 내부에는 송신기(433)와 배터리(도면에 미도시)가 부착되어 하부에 형성된 체결플레이트(422)를 통해 상기 체결대(410)에 체결넛트로 고정되며,The sensor 430, the sensor 432 is installed on one side, the transmitter 433 and the battery (not shown) is attached to the inside of the rectangular box 431 through a fastening plate 422 formed at the bottom The fastening nut is fixed to the fastening table 410,

상기 계측기(440)는, 사각파이프(411)의 측면에 체결플레이트(422)가 형성되어 상기 체결대(410)에 체결넛트로 고정되고, 상기 사각파이프(411)의 내부에는 양측이 톱니형태를 형성한 측정핀(441)이 삽입설치되며,The measuring device 440, the fastening plate 422 is formed on the side of the square pipe 411 is fixed to the fastening nut to the fastening table 410, both sides of the inside of the square pipe 411 has a sawtooth shape. The formed measuring pin 441 is inserted and installed,

상기 송,수신기(450)는, 상기 작동기(420)의 작동을 통해 측정핀(441)을 작동시켜 감지기(430)의 감지센서(432)가 측정핀(441)의 톱니형태를 따라 이동거리를 송,수신기(450)로 송신하도록 하여 교량상판(300)의 변형을 측정할 수 있도록 구성한다.The transmitter and the receiver 450 operate the measuring pin 441 through the operation of the actuator 420 so that the sensing sensor 432 of the detector 430 moves along the sawtooth shape of the measuring pin 441. By transmitting to the transmitter, the receiver 450 is configured to measure the deformation of the bridge deck 300.

상술한 구성에서 알 수 있는 바와 같이, 상기 교량상판 안전진단용 변형측정장치는, 교각구조물의 하부에 교량상판의 변형을 측정할 수 있도록 변형측정장치를 설치하여 교량상판 처짐의 변형을 주기적인 측정을 통해 쉽게 파악할 수 있도록 하여 교량구조물의 안전을 확보할 수 있도록 구성한다.As can be seen from the above-described configuration, the strain measuring device for safety diagnosis of the bridge deck is provided with a strain measuring device so as to measure the deformation of the bridge deck at the lower portion of the bridge structure to periodically measure the deformation of the bridge deck deflection. It is configured to ensure the safety of the bridge structure so that it can be easily understood through.

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

본 발명의 교량상판 안전진단용 변형측정장치는, 교량상판 캠버의 변위가 허용변위 이상으로 작동하였거나, 교좌장치의 파손 또는 교각구조물의 변형이 발생되었을 경우 변형측정장치를 통해 교량상판의 변형을 미연에 파악할 수 있도록 하여 교량구조물의 문제점 및 안전을 신속하게 대처할 수 있도록 하는 효과를 갖도록 한다.The deformation measuring device for safety diagnosis of the bridge deck according to the present invention, when the displacement of the bridge deck camber is operated above the allowable displacement, or when the bridge device breakage or deformation of the bridge structure occurs, the deformation of the bridge deck through the deformation measuring device has not been performed. It should be possible to grasp the problems and safety of the bridge structure quickly so that it can be identified.

Claims (1)

교각구조물 사이의 상부에 교량상판의 변형을 측정하기 위하여 설치되는 교량상판 안전진단용 변형측정장치(400)에 있어서,In the bridge plate safety diagnosis strain measuring device 400 which is installed in order to measure the deformation of the bridge top plate between the bridge structure, 상기 교량상판 안전진단용 변형측정장치(400)는, 교각구조물(100) 사이의 상부에 체결대(410)를 셋트앙카(414)를 이용하여 교각구조물(100) 상단에 고정하고, 상기 체결대(410)에 작동기(420)와 계측기(440)와 감지기(430)를 설치하여 송,수신기(450)를 이용하여 작동기(420)를 작동시켜 계측기(440)의 측정핀(441)을 상부로 올려 감지기(430)에서 측정핀(441)의 톱니형태를 따라 이동을 감지토록 하여 송,수신기(450)로 데이터를 송신하여 교량상판(300)과 측정핀(441)의 간격을 파악하여 주기적인 측정을 통해 교량상판(300)의 변형을 측정할 수 있도록 구성하는 한편,The bridge plate safety diagnosis deformation measuring device 400, the fastening table 410 in the upper portion between the bridge structure 100 using a set anchor 414 to secure the upper end of the bridge structure 100, the fastening table ( 410, the actuator 420, the measuring instrument 440 and the detector 430 is installed to operate the actuator 420 using the transmitter and receiver 450 to raise the measuring pin 441 of the measuring instrument 440 to the top. The sensor 430 detects the movement along the sawtooth of the measuring pin 441 and transmits the data to the transmitter and the receiver 450 to determine the interval between the bridge deck 300 and the measuring pin 441 and periodically measure the measurement. While configuring to measure the deformation of the bridge deck 300 through, 상기 체결대(410)는, 사각파이프(411)의 양측에 체결홀(413)이 형성된 ㄱ-자형태의 플레이트(412)가 용접고정되어 셋트앙카(414)에 의해 교각구조물(100) 상단에 고정되고, 상기 사각파이프(411)의 중앙부위에는 체결앙카(415)가 다수개 용접고정되어 설치되며,The fastening table 410, the a-shaped plate 412 of the a-shaped plate 412 formed with fastening holes 413 on both sides of the square pipe 411 is welded fixed to the top of the pier structure 100 by a set anchor 414 It is fixed, a plurality of fastening anchors 415 are welded fixed to the central portion of the square pipe 411 is installed, 상기 작동기(420)는, 모터(423)에 원형톱니(424)가 부착되고, 측면에는 수신기(425)와 배터리(도면에 미도시)가 설치된 ㄱ자형 체결대(421)가 형성되며, 하부에는 체결플레이트(422)가 형성되어 상기 체결대(410)에 체결넛트로 고정되고,The actuator 420, a circular saw tooth 424 is attached to the motor 423, the side is formed with an L-shaped fastener 421, the receiver 425 and a battery (not shown) is installed, the lower portion The fastening plate 422 is formed and fixed to the fastening nut 410 by a fastening nut, 상기 감지기(430)는, 한측에 감지센서(432)가 설치되고, 사각박스(431) 내부에는 송신기(433)와 배터리(도면에 미도시)가 부착되어 하부에 형성된 체결플레이트(422)를 통해 상기 체결대(410)에 체결넛트로 고정되며,The sensor 430, the sensor 432 is installed on one side, the transmitter 433 and the battery (not shown) is attached to the inside of the rectangular box 431 through a fastening plate 422 formed at the bottom The fastening nut is fixed to the fastening table 410, 상기 계측기(440)는, 사각파이프(411)의 측면에 체결플레이트(422)가 형성되어 상기 체결대(410)에 체결넛트로 고정되고, 상기 사각파이프(411)의 내부에는 양측이 톱니형태를 형성한 측정핀(441)이 삽입설치되며,The measuring device 440, the fastening plate 422 is formed on the side of the square pipe 411 is fixed to the fastening nut to the fastening table 410, both sides of the inside of the square pipe 411 has a sawtooth shape. The formed measuring pin 441 is inserted and installed, 상기 송,수신기(450)는, 상기 작동기(420)의 작동을 통해 측정핀(441)을 작동시켜 감지기(430)의 감지센서(432)가 측정핀(441)의 톱니형태를 따라 이동거리를 송,수신기(450)로 송신하도록 하여 교량상판(300)의 변형을 측정할 수 있도록 구성하는 것을 특징으로 하는 교량상판 안전진단용 변형측정장치.The transmitter and the receiver 450 operate the measuring pin 441 through the operation of the actuator 420 so that the sensing sensor 432 of the detector 430 moves along the sawtooth shape of the measuring pin 441. Strain measurement device for the safety diagnosis of the bridge top plate, characterized in that configured to measure the deformation of the bridge deck 300 by transmitting to the transmitter, the receiver 450.
KR10-2004-0072368A 2004-09-10 2004-09-10 Measure apparatus for safety check-up of bridge KR100473480B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2004-0072368A KR100473480B1 (en) 2004-09-10 2004-09-10 Measure apparatus for safety check-up of bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2004-0072368A KR100473480B1 (en) 2004-09-10 2004-09-10 Measure apparatus for safety check-up of bridge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR20-2004-0026017U Division KR200369967Y1 (en) 2004-09-10 2004-09-10 Measure apparatus for safety check-up of bridge

Publications (2)

Publication Number Publication Date
KR20040083406A true KR20040083406A (en) 2004-10-01
KR100473480B1 KR100473480B1 (en) 2005-03-14

Family

ID=37367235

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2004-0072368A KR100473480B1 (en) 2004-09-10 2004-09-10 Measure apparatus for safety check-up of bridge

Country Status (1)

Country Link
KR (1) KR100473480B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762180B1 (en) * 2007-04-04 2007-10-01 케이에스엠기술 주식회사 Measurement member of girder for bridge
KR100787474B1 (en) * 2007-08-28 2007-12-21 (주)다음기술단 Safety diagnosis apparatus for expansion joint on briege
KR100896019B1 (en) * 2008-06-23 2009-05-15 백양엔지니어링(주) Security check system for the bridge steel box by using portable measurement system
CN111779925A (en) * 2020-06-06 2020-10-16 河南交院工程技术有限公司 Bridge bottom measuring part mounting equipment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100565848B1 (en) * 2006-01-06 2006-04-04 (재) 한국건설품질연구원 Behind state safe diagnostic equipment of a bridge up institution
KR101693759B1 (en) 2016-11-29 2017-01-09 한국건설기술연구원 Safety inspection apparatus for bridge using expansion joint with load cell, and method for the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762180B1 (en) * 2007-04-04 2007-10-01 케이에스엠기술 주식회사 Measurement member of girder for bridge
KR100787474B1 (en) * 2007-08-28 2007-12-21 (주)다음기술단 Safety diagnosis apparatus for expansion joint on briege
KR100896019B1 (en) * 2008-06-23 2009-05-15 백양엔지니어링(주) Security check system for the bridge steel box by using portable measurement system
CN111779925A (en) * 2020-06-06 2020-10-16 河南交院工程技术有限公司 Bridge bottom measuring part mounting equipment

Also Published As

Publication number Publication date
KR100473480B1 (en) 2005-03-14

Similar Documents

Publication Publication Date Title
KR100942060B1 (en) A bridge device abutment for bridge expansion and contraction abnormal noise department
KR200443692Y1 (en) Safety check-up apparatus for steel box slab section of bridge
KR100473480B1 (en) Measure apparatus for safety check-up of bridge
KR100636897B1 (en) A measuring device for safety testing on a part offlexible coupling in bridge
KR100549297B1 (en) a safety testing device for bridge with optical monitor
KR100473481B1 (en) Safety diagnosis apparatus for bridgr
KR100865875B1 (en) Safety check-up apparatus of floor-slab for bridge of the surface water section
KR101890383B1 (en) Integrated management system of fastening part by using capacitance measurement
CN109186444A (en) A kind of detection device and detection method of weighing scale platform limit distance
KR100457376B1 (en) Safety diagnosis apparatus for camber measurement of bridge
KR200369967Y1 (en) Measure apparatus for safety check-up of bridge
KR101159777B1 (en) Fixing apparatus for sensor
KR100591454B1 (en) Bridge institution thing safe diagnostic equipment
KR200444090Y1 (en) Safety diagnosis apparatus perceived transformation of bridge cantilever section
KR100457169B1 (en) Safety diagnosis apparatus for camber measurement of bridge
KR100725059B1 (en) A measurement device for safe diagnoses of a supporting beam perpendicular department
CN110646126A (en) Landing leg reaction force sensor and landing leg type engineering machinery
KR101996876B1 (en) Potable rail neutral temperature detection apparatus
KR100952593B1 (en) A measuring device for expansion and contraction of a bridge
KR200362380Y1 (en) Safety diagnosis apparatus for bridgr
CN210322131U (en) Landing leg reaction force sensor and landing leg type engineering machinery
KR20040071670A (en) Moving freely displacement measure apparatus for safety diagnosis of construction
KR100524004B1 (en) Safety diagnosis apparatus for construction
KR200374765Y1 (en) Safety diagnosis apparatus for construction
KR20040103867A (en) Safety diagnosis apparatus for construction

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: 20100203

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee