CN106643634A - Device for measuring water area-crossing bridge deflection and measurement method thereof - Google Patents
Device for measuring water area-crossing bridge deflection and measurement method thereof Download PDFInfo
- Publication number
- CN106643634A CN106643634A CN201611237304.5A CN201611237304A CN106643634A CN 106643634 A CN106643634 A CN 106643634A CN 201611237304 A CN201611237304 A CN 201611237304A CN 106643634 A CN106643634 A CN 106643634A
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- deflection
- bridge
- steel wire
- fixed
- measurement
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Classifications
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- 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
- 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a device for measuring water area-crossing bridge deflection and a measurement method thereof. The device mainly comprises two fixed pulleys arranged at the bridge surface edge deflection points to be detected and the bridge surface measurement points, one steel wire passes through the two fixed pulleys, the two ends of the steel wire are respectively connected with a heavier block and a lighter block to fasten the steel wire, the heavier block is vertically immersed to the water bottom river bed to be taken as a fixed point, and the lighter block is vertically dropped off and is arranged on one displacement measurement device. Aiming at the deflection measurement of the water area-crossing bridge, the device for measuring the water area-crossing bridge deflection is higher in the measurement precision compared to the measurement bridge deflection through adoption of a precision level. The device for measuring water area-crossing bridge deflection and the measurement method thereof mainly employ the steel wire, fixed pulleys and heavy objects, and the displacement measurement device is employed to measure the bridge deflection, the number of the required devices is small, the cost is low and the repeatability is good.
Description
Technical field
The invention belongs to bridge structure inspection (prison) survey field, and in particular to a kind of measurement across waters deflection of bridge span device and
Measuring method.
Background technology
Bridge plays more and more important effect as the important component part of Modern Traffic, for society and economy is sent out
Exhibition has a far reaching influence.But due to various errors of the bridge in design, construction and work progress, cause bridge to produce various asking
Topic, or even cause imponderable loss.Moment ensures bridge reliability of operation, is highly important problem, with important
The multi-meaning such as society, economy, science.
Deflection of bridge span (vertical displacement) is the direct reflection of bridge structure operation state, be bridge structure safety index it
One, it is to judge bridge vertical rigidity, structural bearing capacity and the of paramount importance technical parameter of structural integrity, it is bridge structure safe
The important indicator that performance evaluation, rebuilding of bridges and new bridge are checked and accepted.
At present inspection (prison) the survey method of deflection of bridge span (vertical displacement) mainly has：1. the spirit level according to made by optical principle
Monitoring method, the method or device have that system is excessively complicated, expensive, safeguard that inconvenience, precision is not high, be not suitable for
In the long-term Continuous Observation of the engineering site of bad environments；2. deflection monitoring device made by liquid level law of connected vessels is utilized, as in
The patent of invention " the monitoring methods of long-span bridge deflection structure (CN 200310108447.2) " of Tongji University of state application, the liquid
There is the stagnant stain of liquid flowing in body linker method, the degree of accuracy is not high, repeatability is bad and can not carry out dynamic deflection, sedimentation detection
Shortcoming；The invention of the 3. angular displacement monitoring device of benchmark bracing wire one, such as Wuhan, China Yan Hai engineering technology Co., Ltd application is special
Sharp " a kind of method and device (CN 200610018825.1) to measuring deflection settling of engineering structure body ", there is base in the device
Quasi- bracing wire is easily disturbed by external forces, so as to the shortcoming for causing the degree of accuracy not high.
The content of the invention
An object of the present invention is the dress for providing the high measurement of a kind of simple structure, accuracy across waters deflection of bridge span
Put.
The above-mentioned purpose of the present invention is by the following technical solutions realizing：Dress of the measurement across waters deflection of bridge span
Put, it includes two fixed pulleys at being respectively arranged at bridge floor edge amount of deflection tested point and bridge floor deflection metrology point, a steel wire
By described two fixed pulleys, the steel wire two ends connect respectively heavier and lighter two pouring weight and are tensioned steel wire, heavier
Pouring weight vertically sink under water riverbed as fixed point, lighter pouring weight vertically falls and is placed on a displacement measuring device.
Specifically, described two fixed pulleys are separately fixed on support, and two fixed pulleys are in same level height.
Specifically, institute's displacement measurement device includes displacement transducer, and displacement transducer is located on bridge floor deflection metrology point,
Displacement transducer is in close contact lighter pouring weight by itself spring, displacement transducer also with signal storage device or computer
Signal acquiring system connects.
Specifically, described two pouring weights are made using identical material, and a volume is larger, a small volume.
The second object of the present invention is to provide the measuring method based on above-mentioned measurement across the device of waters deflection of bridge span, should
Comprise the steps：
(1) support for fixing two fixed pulleys is installed；The design of support meets two fixed pulleys and scratches in bridge structure
Use demand in degree measurement, wherein, a fixed pulley is arranged at bridge floor edge amount of deflection tested point, fixed pulley support at this
Fixed, another fixed pulley is arranged at bridge floor deflection metrology point, and fixed pulley is fixed with support at this, and two fixed pulleys are arranged at
In same horizontal line；
(2) by a steel wire by the described two fixed pulley guiding of step (1), by the steel wire one of bridge floor edge fixed pulley
The larger weight of end connection, holding vertically sinks under water；Less weight is connected by the steel wire other end at bridge floor deflection metrology point,
Less weight is pressed on displacement transducer, and displacement transducer is in close contact less weight by itself spring；
(3) step (2) institute displacement sensors are arranged on the surface at bridge floor deflection metrology point, using the deadweight of weight
Make steel wire generally in tensioning state, then steel wire, weight, displacement transducer and tested point are located on same vertical line；
(4) it is under tight state in steel wire, bridge floor is produced vertical displacement by load action, using displacement sensor
Go out amount of deflection change of the bridge floor edge amount of deflection tested point under load action.
The present invention compares precision level measurement deflection of bridge span for the deflection metrology across waters bridge, and certainty of measurement is more
It is high.It is of the invention mainly to adopt steel wire, fixed pulley and weight, deflection of bridge span is measured with displacement measuring device, equipment needed thereby is less, takes
Reproducible with low, certainty of measurement can reach 0.01mm, and the less bridge of amount of deflection is special under, load action larger for rigidity
It is suitable for.
Description of the drawings
Fig. 1 is the mounting structure schematic diagram of apparatus of the present invention.
Structural representation when Fig. 2 is apparatus of the present invention measurement bridge floor entirety downwarp.
Structural representation when Fig. 3 is apparatus of the present invention measurement bridge floor torsional deflection.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.
Referring to Fig. 1 to Fig. 3, the measurement apparatus of the present embodiment include being arranged at the fixed pulley 2 of bridge floor edge amount of deflection tested point
With the fixed pulley 3 being arranged at bridge floor deflection metrology point 9, steel wire 1 by fixed pulley 2 and fixed pulley 3, the connection of the left end of steel wire 1 compared with
The pouring weight 6 of weight, the right-hand member of steel wire 1 connects lighter pouring weight 7, and is tensioned steel wire 1, and pouring weight 6 adopts identical material system with pouring weight 7
Into the volume of pouring weight 6 is larger, the small volume of pouring weight 7, and double object product difference is unsuitable excessive.Heavier pouring weight 6 vertically sinks to the water surface
As fixed point on riverbed 11 under 10, lighter pouring weight 7 vertically falls and is held in place on displacement sensor 8, displacement transducer 8
On bridge floor deflection metrology point 9, displacement transducer 8 is in close contact lighter pouring weight 7, displacement transducer 8 by itself spring
It is connected that (displacement transducer and zoophysiology are existing mature technology, and here is not with zoophysiology
Repeat again).It can be seen from figure 1 that fixed pulley 2 is fixed on support 4, fixed pulley 3 is fixed on support 5, and fixed pulley 2 is sliding with fixed
Wheel 3 is in same level height.
The course of work of the present embodiment is：The bottom, the other end are fixed in the one end of steel wire 1 by pouring weight 6 and pouring weight 7 using deadweight
It is held in place on displacement sensor 8, then steel wire 1 is tensioned, bridge receives load action, produces vertical displacement, bridge floor edge amount of deflection is to be measured
Point and the generation vertical displacement of bridge floor deflection metrology point are poor, then displacement transducer 8 produces corresponding readings, and the reading is bridge floor edge
The amount of deflection (vertical displacement) at place.When under bridge generation entirety around with torsional deflection, bridge edge deflection metrology schematic diagram is as schemed
Shown in 2, Fig. 3.
Claims (5)
1. it is a kind of measurement across waters deflection of bridge span device, it is characterised in that：It includes that being respectively arranged at bridge floor edge amount of deflection treats
Two fixed pulleys at measuring point and bridge floor deflection metrology point, a steel wire is by described two fixed pulleys, the steel wire two ends point
Do not connect heavier and lighter two pouring weight and be tensioned steel wire, heavier pouring weight vertically sinks under water riverbed as fixed point, compared with
Light pouring weight vertically falls and is placed on a displacement measuring device.
2. the device across waters deflection of bridge span is measured according to claim 1, it is characterised in that：Described two fixed pulley difference
It is fixed on support, and two fixed pulleys are in same level height.
3. it is according to claim 1 or claim 2 measurement across waters deflection of bridge span device, it is characterised in that：Institute's displacement measurement dress
Put including displacement transducer, displacement transducer is located on bridge floor deflection metrology point, and displacement transducer is closely connect by itself spring
Lighter pouring weight is touched, displacement transducer is also connected with signal storage device or zoophysiology.
4. the device across waters deflection of bridge span is measured according to claim 3, it is characterised in that：Described two pouring weights adopt phase
Make with material, a volume is larger, a small volume.
5. it is a kind of based on the measuring method that the device across waters deflection of bridge span is measured described in claim 1, it is characterised in that to include
Following steps：
(1) support for fixing two fixed pulleys is installed；The design of support meets two fixed pulleys and surveys in deflection of bridge structure
Use demand in amount, wherein, a fixed pulley is arranged at bridge floor edge amount of deflection tested point, and fixed pulley is solid with support at this
Fixed, another fixed pulley is arranged at bridge floor deflection metrology point, and fixed pulley is fixed with support at this, and two fixed pulleys are arranged at together
On one horizontal line；
(2) steel wire is connected by the described two fixed pulley guiding of step (1) by steel wire one end of bridge floor edge fixed pulley
Larger weight is connect, holding vertically sinks under water；Less weight is connected by the steel wire other end at bridge floor deflection metrology point, it is less
Weight is pressed on displacement transducer, and displacement transducer is in close contact less weight by itself spring；
(3) step (2) institute displacement sensors are arranged on the surface at bridge floor deflection metrology point, and using the deadweight of weight steel is made
Silk is located on same vertical line generally in tensioning state, then steel wire, weight, displacement transducer and tested point；
(4) it is under tight state in steel wire, bridge floor is produced vertical displacement by load action, and using displacement sensor bridge is gone out
Amount of deflection change of the edge amount of deflection tested point in face under load action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237304.5A CN106643634A (en) | 2016-12-28 | 2016-12-28 | Device for measuring water area-crossing bridge deflection and measurement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237304.5A CN106643634A (en) | 2016-12-28 | 2016-12-28 | Device for measuring water area-crossing bridge deflection and measurement method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106643634A true CN106643634A (en) | 2017-05-10 |
Family
ID=58831980
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611237304.5A Pending CN106643634A (en) | 2016-12-28 | 2016-12-28 | Device for measuring water area-crossing bridge deflection and measurement method thereof |
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| CN (1) | CN106643634A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532968A (en) * | 2018-06-05 | 2018-09-14 | 上海绿地建设(集团)有限公司 | A kind of assembled support device of steel bar truss floor support plate composite floor system |
| CN112945487A (en) * | 2021-01-28 | 2021-06-11 | 西南交通大学 | Bridge deflection measuring device and measuring method |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57141501A (en) * | 1981-02-26 | 1982-09-01 | Kaneko Keisoku Kogyo Kk | Measuring device for displacement of bridge girder |
| JPH1130513A (en) * | 1997-07-10 | 1999-02-02 | B M C:Kk | Mounting structure of displacement sensor |
| JP2001304861A (en) * | 2000-04-19 | 2001-10-31 | Keisoku Giken Kk | Method and instrument for measuring displacement of structure |
| KR20040064253A (en) * | 2004-06-28 | 2004-07-16 | (주)씨에스티개발 | Safety diagnosis apparatus for bridgr |
| CN101055218A (en) * | 2007-05-29 | 2007-10-17 | 重庆交通大学 | Bridge flexibility and displacement monitoring device and monitoring method |
| CN201348479Y (en) * | 2008-12-11 | 2009-11-18 | 中冶建筑研究总院有限公司 | Standard displacement generator and displacement monitoring device |
| DE102009026002A1 (en) * | 2009-06-19 | 2010-12-23 | Braun, Matthias, Dipl.-Ing. | Device for detecting movement of settlement-sensitive component i.e. supporting structure, of bridge, has angle measuring sensor and displacement sensor for detecting position deviations of tension cable or tension wire |
| CN102288152A (en) * | 2011-07-25 | 2011-12-21 | 河南路研交通科技有限公司 | Device and method for measuring deflection of bridge structure |
| CN202131558U (en) * | 2011-06-07 | 2012-02-01 | 付梓修 | Bridge capable of monitoring displacement of bridge pier |
| CN203534593U (en) * | 2013-10-23 | 2014-04-09 | 浙江省水文局 | Portable multifunctional hydrologic bridge gauging vehicle |
| CN104567641A (en) * | 2015-01-06 | 2015-04-29 | 长安大学 | Middle and small span bridge deflection measuring device |
| CN204514375U (en) * | 2015-03-26 | 2015-07-29 | 长沙理工大学 | A kind of anchored slope distortion intelligent monitor system |
| CN204645103U (en) * | 2015-04-02 | 2015-09-16 | 郑州大学 | A kind of device measuring drag-line horizontal displacement of foundation |
| CN204881498U (en) * | 2015-08-19 | 2015-12-16 | 湖南科技大学 | Vertical measuring device that scratches of bridge |
| CN105241418A (en) * | 2015-10-30 | 2016-01-13 | 浙江大学 | Novel ground surface settlement test device and method |
| CN105588530A (en) * | 2014-10-23 | 2016-05-18 | 中国石油化工股份有限公司 | Oil storage tank oil thickness automation measuring instrument |
| CN205373678U (en) * | 2015-10-15 | 2016-07-06 | 郑州大学 | Vertical displacement's testing arrangement at bottom of bridge |
| CN205803525U (en) * | 2016-07-29 | 2016-12-14 | 河北钢铁股份有限公司承德分公司 | A kind of device of accurate measurement converter movable hood displacement |
| CN206281482U (en) * | 2016-12-28 | 2017-06-27 | 湖南科技大学 | A kind of device measured across waters deflection of bridge span |
-
2016
- 2016-12-28 CN CN201611237304.5A patent/CN106643634A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57141501A (en) * | 1981-02-26 | 1982-09-01 | Kaneko Keisoku Kogyo Kk | Measuring device for displacement of bridge girder |
| JPH1130513A (en) * | 1997-07-10 | 1999-02-02 | B M C:Kk | Mounting structure of displacement sensor |
| JP2001304861A (en) * | 2000-04-19 | 2001-10-31 | Keisoku Giken Kk | Method and instrument for measuring displacement of structure |
| KR20040064253A (en) * | 2004-06-28 | 2004-07-16 | (주)씨에스티개발 | Safety diagnosis apparatus for bridgr |
| CN101055218A (en) * | 2007-05-29 | 2007-10-17 | 重庆交通大学 | Bridge flexibility and displacement monitoring device and monitoring method |
| CN201348479Y (en) * | 2008-12-11 | 2009-11-18 | 中冶建筑研究总院有限公司 | Standard displacement generator and displacement monitoring device |
| DE102009026002A1 (en) * | 2009-06-19 | 2010-12-23 | Braun, Matthias, Dipl.-Ing. | Device for detecting movement of settlement-sensitive component i.e. supporting structure, of bridge, has angle measuring sensor and displacement sensor for detecting position deviations of tension cable or tension wire |
| CN202131558U (en) * | 2011-06-07 | 2012-02-01 | 付梓修 | Bridge capable of monitoring displacement of bridge pier |
| CN102288152A (en) * | 2011-07-25 | 2011-12-21 | 河南路研交通科技有限公司 | Device and method for measuring deflection of bridge structure |
| CN203534593U (en) * | 2013-10-23 | 2014-04-09 | 浙江省水文局 | Portable multifunctional hydrologic bridge gauging vehicle |
| CN105588530A (en) * | 2014-10-23 | 2016-05-18 | 中国石油化工股份有限公司 | Oil storage tank oil thickness automation measuring instrument |
| CN104567641A (en) * | 2015-01-06 | 2015-04-29 | 长安大学 | Middle and small span bridge deflection measuring device |
| CN204514375U (en) * | 2015-03-26 | 2015-07-29 | 长沙理工大学 | A kind of anchored slope distortion intelligent monitor system |
| CN204645103U (en) * | 2015-04-02 | 2015-09-16 | 郑州大学 | A kind of device measuring drag-line horizontal displacement of foundation |
| CN204881498U (en) * | 2015-08-19 | 2015-12-16 | 湖南科技大学 | Vertical measuring device that scratches of bridge |
| CN205373678U (en) * | 2015-10-15 | 2016-07-06 | 郑州大学 | Vertical displacement's testing arrangement at bottom of bridge |
| CN105241418A (en) * | 2015-10-30 | 2016-01-13 | 浙江大学 | Novel ground surface settlement test device and method |
| CN205803525U (en) * | 2016-07-29 | 2016-12-14 | 河北钢铁股份有限公司承德分公司 | A kind of device of accurate measurement converter movable hood displacement |
| CN206281482U (en) * | 2016-12-28 | 2017-06-27 | 湖南科技大学 | A kind of device measured across waters deflection of bridge span |
Non-Patent Citations (1)
| Title |
|---|
| 蓝章礼等: "非接触式张力线桥梁挠度测量系统", 《仪器仪表学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532968A (en) * | 2018-06-05 | 2018-09-14 | 上海绿地建设(集团)有限公司 | A kind of assembled support device of steel bar truss floor support plate composite floor system |
| CN112945487A (en) * | 2021-01-28 | 2021-06-11 | 西南交通大学 | Bridge deflection measuring device and measuring method |
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