KR20010001348A - Load measuring apparatus of fixing construction - Google Patents
Load measuring apparatus of fixing construction Download PDFInfo
- Publication number
- KR20010001348A KR20010001348A KR1019990020499A KR19990020499A KR20010001348A KR 20010001348 A KR20010001348 A KR 20010001348A KR 1019990020499 A KR1019990020499 A KR 1019990020499A KR 19990020499 A KR19990020499 A KR 19990020499A KR 20010001348 A KR20010001348 A KR 20010001348A
- Authority
- KR
- South Korea
- Prior art keywords
- load
- measuring
- divided
- sphere
- fixed structure
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/205—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using distributed sensing elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bridges Or Land Bridges (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
본 발명은 사장교와 현수교 등의 교량이나 기계, 선박, 토목, 건축분야의 시공물을 시공하여 고정한 뒤, 이 고정된 구조물의 하중을 간편하면서 용이하게 측정하여 상기 하중에 따른 상기 구조물들의 안정성을 점검할 수 있도록 하고, 상기 측정된 구조물의 안정성 이상 발견시 이를 조기에 보수 및 수정할 수 있도록 한 고정구조물의 하중측정장치에 관한 것이다.The present invention after the construction of the bridge, such as cable-stayed bridges and suspension bridges, or construction of construction equipment in the field of machinery, ships, civil engineering, and construction, and then simply and easily measure the load of the fixed structure to check the stability of the structure according to the load The present invention relates to a load measuring device for a fixed structure, which enables to repair and correct it early when a stability abnormality of the measured structure is found.
일반적으로 사장교와 현수교 등의 교량이나 기계, 선박, 토목, 건축분야의 시공물을 시공하여 고정한 뒤에는 상기 구조물들의 하중을 측정할 수 없었기 때문에 상기 구조물들의 시공작업시 상기 구조물의 하중을 사전에 측정하여 점검하도록 되어 있었다.In general, the loads of the structures cannot be measured after fixing and fixing the bridges such as cable-stayed bridges and suspension bridges, or in the fields of machinery, ships, civil engineering, and construction. Was supposed to check.
따라서, 상기 고정구조물들이 완성된 후에는 이들 고정구조물에 편하중을 포함하여 과도한 하중이 부가되더라도 이를 확인할 수 없었고 이에 따라 상기 구조물들에 크랙이 형성되거나, 파손현상이 발생되었을 경우에만, 상기 하중에 대한 대책을 강구하고 있었을 뿐이며, 상기 구조물들을 사전에 안정성 등에 대한 점검을 할 수 없게 되었다.Therefore, after the fixed structures are completed, even if an excessive load including the unloading load is added to these fixed structures, it could not be confirmed. Therefore, when the cracks are formed or breakage occurs in the structures, It has only been to take measures to prevent such a structure, it is impossible to check the stability in advance.
또, 상기 와이어 로프 등을 이용하여 시공되는 사장교나 현수교의 경우에는 각 와이어 로프에 가해지는 하중을 수시로 점검하여 교량의 안정성을 점검해야 하는바, 상기 교량이 완성된 후에는 교량의 각 와이어 로프에 가해지는 하중을 측정하지 못하고 있었고 교량이나 상기 와이어 로프의 파손상태를 육안으로 관찰 점검해야 했으며, 이에 따라 상기 교량의 안전상태를 미리 확인하여 교량이 파손되거나 붕괴되는 것을 예방하기 어렵게 되는 등의 문제점이 있었다.In addition, in the case of cable-stayed bridges or suspension bridges constructed using the wire ropes, the loads on the wire ropes must be checked from time to time to check the stability of the bridges. The load applied was not measured and the broken state of the bridge or the wire rope had to be visually inspected and checked. Accordingly, it is difficult to prevent the bridge from being broken or collapsed by checking the safety state of the bridge in advance. there was.
본 발명은 상기와 같은 제반 문제점을 감안하여 안출한 것으로, 본 발명은 사장교와 현수교 등의 교량이나 기계, 선박, 토목, 건축분야의 시공물을 시공하여 고정한 뒤, 이 고정된 구조물의 하중을 간편하면서 용이하게 측정하여 상기 하중에 따른 상기 구조물들의 안정성을 점검할 수 있도록 하고, 상기 측정된 구조물의 안정성 이상 발견시 이를 조기에 보수 및 수정할 수 있도록 한 고정구조물의 하중측정장치를 제공하려는 것이며, 상기 하중측정장치에는 재료에 인장력이 가해지면, 이에 대응하는 응력이 재료의 내부에서 발생하게 되고 이 응력에 비례한 인장이 발생되면서 길이가 변형되며 이 변형된 비율을 이용하여 하중을 측정하는 스트레인 게이지(Strain Gauge)를 구비한 분할형 측정장치를 구비하여 상기 피측정물에 용이하게 설치하면서 측정할 수 있도록 한 것인바, 이를 이하에서 실시예에 의거하여 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned problems, the present invention is easy to load the fixed structure after fixing the construction of bridges, such as cable-stayed bridges and suspension bridges and construction of machinery, ships, civil engineering, construction While it is easy to measure the stability of the structure according to the load by measuring easily, and to provide a load measuring device of the fixed structure that can be repaired and corrected early when the stability abnormality of the measured structure is found, In the load measuring device, when a tensile force is applied to a material, a corresponding stress is generated inside the material, and a tension is generated in proportion to the stress, and the length is deformed. It is equipped with a split type measuring device having a strain gauge so that it can be easily installed on the object to be measured. The bar will be described in detail based on the following examples.
도 1은 본 발명 실시예의 구성을 나타내는 분해 사시도1 is an exploded perspective view showing the configuration of an embodiment of the present invention
도 2는 본 발명 실시예의 설치상태도2 is an installation state diagram of an embodiment of the present invention
도 3은 도 2의 작용상태도3 is a state diagram of the operation of FIG.
도 4는 본 발명 실시예의 측정구 발췌도Figure 4 is an excerpt of the measurement sphere of the embodiment of the present invention
도 5는 본 발명 실시예의 측정구 결합상태 평면도5 is a plan view of the measuring sphere coupled state of the embodiment of the present invention
도 6은 본 발명 실시예의 스트레인 게이지의 구조를 나타내는 회로도6 is a circuit diagram showing the structure of the strain gauge of the embodiment of the present invention.
도 7 및 도 8은 본 발명 측정구들의 다른 실시예를 나타내는 평면도7 and 8 are a plan view showing another embodiment of the measuring spheres of the present invention
〈도면의주요부분에대한부호설명〉<Description of Signs of Major Parts of Drawings>
1,101 : 측정구1,101: measuring sphere
2 : 스트레인 게이지2: strain gauge
3 : 브릿지 다이오드3: bridge diode
4 : 저항4: resistance
5 : 케이블5: cable
6 : 디스플레이부6 display unit
7 : 피측정물7: measuring object
8,801 : 압력판8,801: Pressure Plate
본 발명은 브릿지 다이오드(3)에 여러개의 저항(4)을 연결한 스트레인 게이지(2)를 구비하여 한 쌍의 분할형 측정구(1)(101)를 구비하고 이 측정구(1)(101)에는 케이블(5)로 연결되는 디스플레이부(6)를 설치한다.The present invention is provided with a strain gauge (2) connecting a plurality of resistors (4) to the bridge diode (3) is provided with a pair of split type measuring sphere (1) (101), the measuring sphere (1) (101) ) Installs the display unit 6 connected by the cable (5).
상기 측정구(1)(101)들은 와이어 로프 등의 피측정물(7)에 고정설치하는 분할형 압력판(8)(801)의 하부에 설치할 수 있도록 하며 상기 압력판(8)(801)에 측정구(1)(101)의 상부를 밀접시킨 상태에서 측정구(1)(101)를 잭(jACK)등으로 밀어올리면서 상기 피측정물의 하중을 측정하게 된다.The measuring spheres (1) and (101) can be installed on the lower part of the divided pressure plate (8) (801) fixedly installed on the measurement object (7), such as a wire rope, and measured on the pressure plate (8) (801). In the state where the upper part of the sphere (1) 101 is in close contact, the measurement sphere (1) 101 is pushed up with a jack or the like to measure the load of the measured object.
또, 상기 브릿지 다이오드(3)에 여러개의 저항(4)을 연결한 스트레인 게이지(2)의 각 저항은 상기 분할되는 각각의 측정구(1)(101)에 분할되는 상태로 설치하고 이들 저항을 통하여 하중을 측정할 수도 있도록 구성되며, 상기 측정구들은 2개의 분할형으로 한정되지 않고 3개 또는 4개로 분할하여 구성할 수도 있도록 구성된 것이다.In addition, the resistances of the strain gauges 2, in which several resistors 4 are connected to the bridge diodes 3, are installed in the state in which they are divided in the respective measuring spheres 1 and 101, and these resistors are provided. It is also configured to measure the load through, the measuring sphere is configured to be divided into three or four, not limited to two divided types.
이상과 같이 구성된 본 발명은 브릿지 다이오드(3)에 여러개의 저항(4)을 연결한 스트레인 게이지(2)를 구비하여 한 쌍의 분할형 측정구(1)(101)를 구비하고 이 측정구(1)(101)에는 케이블(5)로 연결되는 디스플레이부(6)를 설치하여 측정장치를 구성한 다음, 상기 와이어 로프 등의 피측정물(7)에 분할형 압력판(8)(801)을 고정 설치하고, 이의 하부에 상기 분할형 측정구(1)(101)를 설치한 상태에서 상기 측정구(1)(101)들을 잭등으로 밀어올리면서 상기 피측정물의 하중을 측정하게 되는데, 상기 측정구(1)(101)들에 피측정물의 하중이 가해지게 되면, 상기 측정구(1)(101)들에 설치된 스트레인 게이지(2)에서 상기 가해지는 하중에 대응하는 응력이 내부에서 발생하게 되고 이 응력에 비례한 인장이 발생되면서 길이가 변형되며 이 변형된 비율을 상기 저항(4)에서 감지하여 브릿지 다이오드(3)로 인가되고 이 인가된 신호가 케이블(5)로 연결된 디스플레이부(6)에 나타나게 되며 이 나타난 표시로 상기 피측정물의 하중을 고정상태에서도 측정할 수 있게 된다.The present invention configured as described above is provided with a strain gauge (2) connecting a plurality of resistors (4) to the bridge diode (3) provided with a pair of divided measuring sphere (1) (101) and the measuring sphere ( 1) 101 to configure the measuring device by installing the display unit 6 connected by the cable (5), and then fixed the divided pressure plate (8) (801) to the measurement object (7), such as the wire rope In the state of installing the split type measuring sphere (1) 101 in the lower portion thereof, while pushing the measuring sphere (1) (101) to the jack or the like to measure the load of the measured object, the measuring sphere When the load of the object to be measured is applied to the (1) (101), the stress corresponding to the applied load in the strain gauge (2) installed in the measuring sphere (1) (101) is generated inside As the tension is generated in proportion to the stress, the length is deformed, and the deformation rate is detected by the resistance 4. Appears in the diode bridge 3, a display unit 6 is to be applied to the signals coupled in cable 5 is to be able to measure the load of the object to be measured in the water in the fixed state shown display.
또, 상기 스트레인 게이지(2)에 의한 측정방법은 상기 저항과 브릿지 다이오드로 인가되는 신호와 상기 저항의 변화에 따라 측정하게 되며 이 측정시의 관계식은 다음과 같다.In addition, the measurement method by the strain gauge (2) is measured according to the signal applied to the resistance and the bridge diode and the change of the resistance, and the relational expression during the measurement is as follows.
ε = ΔL/L = ΔR.R/Kε = ΔL / L = ΔR.R / K
여기서, ε = 구하는 스트레인, R = 게이지 저항, ΔR = 스트레인을 받았을 때의 저항변화율, K = 게이지율, L = 길이를 나타낸다.Here, ε = strain to be calculated, R = gauge resistance, ΔR = resistance change rate when receiving strain, K = gauge rate, and L = length.
상기 식에 따라 상기 피측정물의 하중을 측정하고 이 측정치가 과도할 경우, 상기 교량의 와이어 로프 등의 고정구조물에 가해지는 하중이 과도함을 알 수 있게 되고 이를 사전에 수정하거나, 보수할 수 있게 되며, 상기 와이어 로프의 피로도를 사전에 점검할 수 있게 되는 것이다.When the load of the measured object is measured according to the above formula and the measured value is excessive, it can be seen that the load applied to the fixed structure such as the wire rope of the bridge is excessive and can be corrected or repaired in advance. It is possible to check the fatigue of the wire rope in advance.
또, 상기 브릿지 다이오드(3)에 여러개의 저항(4)을 연결한 스트레인 게이지(2)의 각 저항은 상기 분할되는 각각의 측정구(1)(101)에 분할되는 상태로 설치하고 이들 저항을 통하여 하중을 측정하도록 구성하게 되면, 상기 각 측정구들에서 고정구조물의 편하중을 측정할 수 있게 되어 상기 고정구조물의 불균형으 측정할 수 있게 되며, 상기 측정구들은 2개의 분할형으로 한정되지 않고 3개 또는 4개로 분할하여 구성할 경우, 바람직 하지는 않으나, 상기 피측정물에 용이하게 설치하여 측정할 수 있게 되는 것이다.In addition, the resistances of the strain gauges 2, in which several resistors 4 are connected to the bridge diodes 3, are installed in the state in which they are divided in the respective measuring spheres 1 and 101, and these resistors are provided. When configured to measure the load through, it is possible to measure the unbalanced load of the fixed structure in each of the measuring spheres to be able to measure the imbalance of the fixed structure, the measuring spheres are not limited to two divided types 3 In the case of dividing into four or four, it is not preferable, but it is possible to easily install and measure on the object to be measured.
이상과 같은 본 발명은 상기 실시예에서와 같이, 피측정물인 교량 등의 와이어 로프나 고정구조물을 설치한 상태에서 이들을 분리시키지 않은 상태에서 상기 측정구들을 용이하게 설치하여 상기 피측정물의 하중을 측정할 수 있게 되며, 상기 피측정물의 하중측정으로 이들의 하중에 의한 피로도를 사전에 점검할 수 있게 되고 이 사전점검으로 사전사고 등을 미연에 방지할 수 있게 되는 점 등의 특징을 지닌 것이다.The present invention as described above, as in the above embodiment, in the state in which the wire rope or a fixed structure, such as a bridge to be measured, is installed in the state in which they are not separated, thereby easily measuring the load of the measured object. It is possible to check the fatigue of these loads in advance by measuring the load of the object to be measured, and this preliminary inspection is characterized in that it is possible to prevent the accident in advance.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990020499A KR100346972B1 (en) | 1999-06-03 | 1999-06-03 | Load measuring apparatus of fixing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990020499A KR100346972B1 (en) | 1999-06-03 | 1999-06-03 | Load measuring apparatus of fixing construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010001348A true KR20010001348A (en) | 2001-01-05 |
| KR100346972B1 KR100346972B1 (en) | 2002-07-31 |
Family
ID=19589850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990020499A KR100346972B1 (en) | 1999-06-03 | 1999-06-03 | Load measuring apparatus of fixing construction |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100346972B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11197594B2 (en) | 2017-07-26 | 2021-12-14 | Samsung Electronics Co., Ltd. | Cleaner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07333044A (en) * | 1994-06-04 | 1995-12-22 | Bunyo Ishiyama | Load cell |
| JPH0886696A (en) * | 1994-09-19 | 1996-04-02 | Bridgestone Corp | Sheet-like strain gauge for load measuring apparatus |
| JP3001577B2 (en) * | 1998-04-10 | 2000-01-24 | 株式会社守谷商会 | Load cell, pressure sensor and pressure sensor calibration device |
-
1999
- 1999-06-03 KR KR1019990020499A patent/KR100346972B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11197594B2 (en) | 2017-07-26 | 2021-12-14 | Samsung Electronics Co., Ltd. | Cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100346972B1 (en) | 2002-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8001846B2 (en) | Mobile testing device and method of using the device | |
| KR20090079192A (en) | Method and apparatus for indicating a load | |
| CN108776066B (en) | Anchor head tension test device and anchor head tension test method | |
| KR200443692Y1 (en) | Safety check-up apparatus for steel box slab section of bridge | |
| KR100473481B1 (en) | Safety diagnosis apparatus for bridgr | |
| CN106770481B (en) | Bridge sling monitoring sensor | |
| CN108387453A (en) | A kind of detecting system and method for building enclosure component resistance to vertical load performance | |
| CN111829878A (en) | Mechanical property testing device and method for angle steel reinforcing member of power transmission tower | |
| KR20010001348A (en) | Load measuring apparatus of fixing construction | |
| CN111323187A (en) | Device and method for monitoring dynamic contact state of main cable and main cable saddle of suspension bridge | |
| CN106400682A (en) | Force-measurement type laminated rubber bearing based on optical fiber deformation sensor | |
| RU2527129C1 (en) | Meter of axial forces in tendons | |
| KR100457376B1 (en) | Safety diagnosis apparatus for camber measurement of bridge | |
| KR102133269B1 (en) | Fixed state monitoring system of testing machine using proximity sensor | |
| CN211998575U (en) | Lifting capacity limiter and lifting equipment | |
| CN108195709A (en) | A kind of static load anchoring test machine method of calibration | |
| KR100473482B1 (en) | Modification measure apparatus of pier for bridge | |
| JP2007002553A (en) | Concrete structure with self-diagnostic function, and its inspection/investigation/diagnosis method | |
| KR20040103867A (en) | Safety diagnosis apparatus for construction | |
| KR19980082659A (en) | Automatic displacement meter for measuring deformation of structures | |
| JP4602377B2 (en) | Anchor nut of anchor and its replacement method | |
| KR20040083406A (en) | Measure apparatus for safety check-up of bridge | |
| KR200265796Y1 (en) | A system using a laser device for inspecting a safety of a road structure | |
| CN212721904U (en) | Calibration tool assembly for wharf stress detection system | |
| CN213572094U (en) | Internal force instrument detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120719 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20130719 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20140718 Year of fee payment: 13 |
|
| FPAY | Annual fee payment |
Payment date: 20150716 Year of fee payment: 14 |
|
| FPAY | Annual fee payment |
Payment date: 20160719 Year of fee payment: 15 |
|
| FPAY | Annual fee payment |
Payment date: 20170719 Year of fee payment: 16 |
|
| LAPS | Lapse due to unpaid annual fee |