CN202002786U - Instrument for testing deflection of bridge - Google Patents

Instrument for testing deflection of bridge Download PDF

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Publication number
CN202002786U
CN202002786U CN201120074857XU CN201120074857U CN202002786U CN 202002786 U CN202002786 U CN 202002786U CN 201120074857X U CN201120074857X U CN 201120074857XU CN 201120074857 U CN201120074857 U CN 201120074857U CN 202002786 U CN202002786 U CN 202002786U
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CN
China
Prior art keywords
deflection
test
bridge
instrument
balancing weight
Prior art date
Application number
CN201120074857XU
Other languages
Chinese (zh)
Inventor
赵煜
蒲广宁
王均利
孟屯良
Original Assignee
长安大学
中交通力建设股份有限公司
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 长安大学, 中交通力建设股份有限公司 filed Critical 长安大学
Priority to CN201120074857XU priority Critical patent/CN202002786U/en
Application granted granted Critical
Publication of CN202002786U publication Critical patent/CN202002786U/en

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Abstract

The utility model discloses an instrument for testing deflection of a bridge, which comprises a horizontal chassis, a level arranged on the horizontal chassis, a plurality of stand columns fixedly arranged on the horizontal chassis, counterweight blocks movably arranged on the stand columns and capable of sliding up and down along the stand columns, deflection testing ropes which are in vertical state all the time under the traction action of the counterweight blocks and synchronously transmit deflection generated by a body of a tested bridge to the counterweight blocks, a bridge deflection test meter which is used for measuring deflection data transmitted to the counterweight blocks, and a meter installation rack which is used for installing the bridge deflection test meter, wherein the upper ends of the deflection testing ropes are fixed at a deflection testing part of the tested bridge, and the lower ends of the deflection testing ropes are fixed on the counterweight blocks. The instrument for testing the deflection of the bridge has reasonable structural design, is convenient to process, manufacture, install and arrange, simple and convenient for use and operation, good in use effect and accurate in deflection test data, and can effectively solve the practical problems of the current bridge deflection testing device that a deflection meter bracket needs to be erected at the bottom of the bridge, the installation and the arrangement are inconvenient, measured data are inaccurate, and the like.

Description

Deflection of bridge span test instrument

Technical field

The utility model belongs to the deflection of bridge span technical field of measurement and test, especially relates to a kind of deflection of bridge span test instrument.

Background technology

In the bridge construction process, need deflection of bridge span accurately to be measured the construction quality of the accuracy direct relation bridge beam body of its deflection metrology data.Nowadays, when deflection of bridge span is tested, all need to set up the deflectometer support in the beam body bottom of tested bridge, when setting up the deflectometer support at the bottom of the bridge, not only set up complex procedures, and be difficult to guarantee the flatness of the deflectometer support of setting up, thereby influence deflection test result's accuracy, thereby the existence of existing bridge deflection test device need be set up the deflectometer support at the bottom of bridge, installation is laid inconvenience, use complicated operation, tested multiple practical problemss such as inconvenient, that measurement data is inaccurate.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of deflection of bridge span test instrument is provided, its reasonable in design, processing and fabricating and installation are laid conveniently, use is easy and simple to handle and result of use good, the deflection test data are accurate, and the need that can effectively solve existing bridge deflection test device existence are set up the deflectometer support at the bottom of bridge, practical problemss such as inconvenient, that measurement data is inaccurate are laid in installation.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of deflection of bridge span test instrument, it is characterized in that: comprise horizontal chassis, the level that is installed on the horizontal chassis and the levelness of horizontal chassis is measured, be fixedly mounted on the many root posts on the horizontal chassis, the balancing weight that is movably arranged on the many described columns and can slides up and down along column, under the draw of balancing weight, be in vertical state in the deflection test process all the time and the amount of deflection that tested bridge beam body produced be passed to synchronously the deflection test rope of balancing weight, deflection of bridge span test instrumentation that is positioned under the balancing weight and the deflection data that is passed to balancing weight is measured and the instrument erecting frame of installing for described deflection of bridge span test instrumentation, described instrument erecting frame is installed on the root post, correspondence has a plurality of through holes that supply column to pass on the described balancing weight, the installation position of the quantity of described through hole and a plurality of described through holes identical with the quantity of column and the installation position of many root posts are corresponding, and deflection test place and its lower end that the upper end of described deflection test rope is fixed on tested bridge are fixed on the balancing weight.

Instrument is used in above-mentioned deflection of bridge span test, it is characterized in that: also comprise the chassis stationary installation that is installed on the horizontal chassis, described horizontal chassis is installed on the ground by described chassis stationary installation horizontal fixed.

Instrument is used in above-mentioned deflection of bridge span test, it is characterized in that: many described column tops are equipped with test rope locating rack, and the middle part of described test rope locating rack has the pilot hole that passes for the deflection test rope, and described pilot hole is positioned at directly over the balancing weight.

Instrument use in the test of above-mentioned deflection of bridge span, it is characterized in that: comprise that also the downward sliding position to balancing weight carries out spacing position-limit mechanism, described position-limit mechanism is movably arranged on the many described columns and it is positioned at below the balancing weight.

Instrument is used in above-mentioned deflection of bridge span test, and it is characterized in that: described instrument erecting frame is fixedly mounted on the column by setscrew nut, and described instrument erecting frame is provided with the instrument geometrical clamp that is used for fixing described deflection of bridge span test instrumentation.

Instrument is used in above-mentioned deflection of bridge span test, and it is characterized in that: described deflection of bridge span test instrumentation is a dial gauge, and the expansion link of described dial gauge and the bottom connection of balancing weight touch.

Instrument is used in above-mentioned deflection of bridge span test, and it is characterized in that: described chassis stationary installation is a plurality of foot bolts that are installed on the horizontal chassis.

Instrument is used in above-mentioned deflection of bridge span test, and it is characterized in that: described horizontal chassis is a disk, and many described columns along the circumferential direction evenly are laid on the horizontal chassis; The quantity of described level is a plurality of, and a plurality of described level along the circumferential direction evenly is laid on the horizontal chassis.

Instrument is used in above-mentioned deflection of bridge span test, and it is characterized in that: the quantity of described level is two, and described level is bubble tube or square column level; The quantity of described column is two.

Instrument is used in above-mentioned deflection of bridge span test, it is characterized in that: described balancing weight top is provided with for the fixing grommet of described deflection test rope colligation, and described position-limit mechanism is for being installed in a plurality of stop nuts on many root posts respectively.

The utility model compared with prior art has the following advantages:

1, reasonable in design, processing and fabricating and installation are laid conveniently, and volume is little, in light weight, is convenient to carrying.

2, the horizontal chassis installing and locating is convenient, can easy horizontal chassis be fixed on the ground by foot bolt, by level the levelness of horizontal chassis is measured simultaneously, and adjust accordingly by the installation site of foot bolt horizontal chassis according to the measurement result of level, until on the ground with the horizontal chassis horizontal fixed, thereby the book Pingdu of horizontal chassis is easy to adjust, and carries the horizontal degree measurement device, thereby can effectively guarantee the deflection of bridge span test result.

3, use is easy and simple to handle, during actual the use, only need horizontal chassis is installed on the ground, again measurement instruments such as dial gauge are fixed on the instrument geometrical clamp, simultaneously the upper end of deflection test rope are fixed on the deflection test place of tested bridge and its lower end is fixed on the balancing weight and can tests.

4, result of use is good, the deflection test data are accurate and practical value is high, transmit amount of deflection by the deflection test rope, practical problemss such as deflectometer support, measurement data are inaccurate have been avoided needing at the bottom of bridge, to set up, during actual the test, only need the deflection test instrument is fixedly mounted on the instrument geometrical clamp, fixing more stable and DATA REASONING is more accurate.

In sum, the utility model reasonable in design, processing and fabricating and installation are laid conveniently, use is easy and simple to handle and result of use good, the deflection test data are accurate, and the need that can effectively solve existing bridge deflection test device existence are set up the deflectometer support at the bottom of bridge, practical problemss such as inconvenient, that measurement data is inaccurate are laid in installation.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of the utility model horizontal chassis and column.

Description of reference numerals:

The 1-horizontal chassis; The 2-foot bolt; The 3-bubble tube;

The 4-column; 5-instrument geometrical clamp; The 6-setscrew nut;

The 7-stop nut; The 8-balancing weight; 9-test rope locating rack;

10-deflection test rope; The 11-grommet; The 12-dial gauge.

Embodiment

As Fig. 1, shown in Figure 2, the utility model comprises horizontal chassis 1, the level that is installed on the horizontal chassis 1 and the levelness of horizontal chassis 1 is measured, be fixedly mounted on the many root posts 4 on the horizontal chassis 1, the balancing weight 8 that is movably arranged on the many described columns 4 and can slides up and down along column 4, under the draw of balancing weight 8, be in vertical state in the deflection test process all the time and the amount of deflection that tested bridge beam body produced be passed to synchronously the deflection test rope 10 of balancing weight 8, deflection of bridge span test instrumentation that is positioned under the balancing weight 8 and the deflection data that is passed to balancing weight 8 is measured and the instrument erecting frame of installing for described deflection of bridge span test instrumentation, described instrument erecting frame is installed on the root post 4, correspondence has a plurality of through holes that supply column 4 to pass on the described balancing weight 8, the installation position of the identical and a plurality of described through holes of the quantity of the quantity of described through hole and column 4 and the installation position of many root posts 4 are corresponding, and deflection test place and its lower end that the upper end of described deflection test rope 10 is fixed on tested bridge are fixed on the balancing weight 8.

Simultaneously, the utility model also comprises the chassis stationary installation that is installed on the horizontal chassis 1, and described horizontal chassis 1 is installed on the ground by described chassis stationary installation horizontal fixed.In the present embodiment, described chassis stationary installation is a plurality of foot bolts 2 that are installed on the horizontal chassis 1, and the quantity of described foot bolt 2 is specially 3, and 3 foot bolts 2 along the circumferential direction are laid on the horizontal chassis 1.

In the present embodiment, many described column 4 tops are equipped with test rope locating rack 9, and the middle part of described test rope locating rack 9 has the pilot hole that passes for deflection test rope 10, and described pilot hole is positioned at directly over the balancing weight 8.During actual installation, described test rope locating rack 9 is installed in column 4 tops by hold-down nut.

Simultaneously, the utility model comprises that also the downward sliding position to balancing weight 8 carries out spacing position-limit mechanism, and described position-limit mechanism is movably arranged on the many described columns 4 and it is positioned at balancing weight 8 belows.In the present embodiment, described position-limit mechanism is for being installed in a plurality of stop nuts 7 on many root posts 4 respectively.

In the present embodiment, described instrument erecting frame is fixedly mounted on the column 4 by setscrew nut 6, and described instrument erecting frame is provided with the instrument geometrical clamp 5 that is used for fixing described deflection of bridge span test instrumentation.

In the present embodiment, described deflection of bridge span test instrumentation is a dial gauge 12, and the bottom connection of the expansion link of described dial gauge 12 and balancing weight 8 touches.During actual the use, described deflection of bridge span test instrumentation can also be other test instrumentations such as clock gauge.

In the present embodiment, described horizontal chassis 1 is a disk, and many described columns 4 along the circumferential direction evenly are laid on the horizontal chassis 1.The quantity of described level is a plurality of, and a plurality of described level along the circumferential direction evenly is laid on the horizontal chassis 1.The quantity of described level is two, and described level is bubble tube 3 or square column level.The quantity of described column 4 is two.Described balancing weight 8 tops are provided with for the fixing grommet 11 of described deflection test rope 10 colligations.

The course of work of the present utility model is: during actual the use, by foot bolt 2 horizontal chassis 1 is installed on the ground earlier, and by level the levelness of horizontal chassis 1 is measured to guarantee the levelness of horizontal chassis 1; Afterwards, again dial gauge 12 is fixed on the instrument geometrical clamp 5, simultaneously the upper end of deflection test rope 10 is fixed on the deflection test place of tested bridge and its lower end is fixed on the balancing weight 8, deflection test rope 10 is in vertical state all the time under the draw of balancing weight 8.During actual the test, when the beam body of tested bridge produces amount of deflection, deflection test rope 10 passes to balancing weight 8 with the amount of deflection that the beam body produces, and corresponding drive balancing weight 8 slides up and down along column 4, and the expansion link of corresponding compression dial gauge 12, make dial gauge 12 produce reading, at last dial gauge 12 measured data transmission to data collecting instrument is carried out further analyzing and processing.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims (10)

1. a deflection of bridge span is tested and is used instrument, it is characterized in that: comprise horizontal chassis (1), the level that is installed in that horizontal chassis (1) is gone up and the levelness of horizontal chassis (1) is measured, be fixedly mounted on the many root posts (4) on the horizontal chassis (1), the balancing weight (8) that is movably arranged on that many described columns (4) are gone up and can slides up and down along column (4), under the draw of balancing weight (8), be in vertical state in the deflection test process all the time and the amount of deflection that tested bridge beam body produced be passed to synchronously the deflection test rope (10) of balancing weight (8), deflection of bridge span test instrumentation that is positioned under the balancing weight (8) and the deflection data that is passed to balancing weight (8) is measured and the instrument erecting frame of installing for described deflection of bridge span test instrumentation, described instrument erecting frame is installed on the root post (4), described balancing weight (8) is gone up correspondence and is had a plurality of through holes that supply column (4) to pass, the installation position of the identical and a plurality of described through holes of the quantity of the quantity of described through hole and column (4) and the installation position of many root posts (4) are corresponding, and deflection test place and its lower end that the upper end of described deflection test rope (10) is fixed on tested bridge are fixed on the balancing weight (8).
2. use instrument according to the described deflection of bridge span test of claim 1, it is characterized in that: also comprise the chassis stationary installation that is installed on the horizontal chassis (1), described horizontal chassis (1) is installed on the ground by described chassis stationary installation horizontal fixed.
3. according to claim 1 or 2 described deflection of bridge span test instruments, it is characterized in that: many described columns (4) top is equipped with test rope locating rack (9), the middle part of described test rope locating rack (9) has the pilot hole that passes for deflection test rope (10), and described pilot hole is positioned at directly over the balancing weight (8).
4. according to claim 1 or 2 described deflection of bridge span test instruments, it is characterized in that: comprise that also the downward sliding position to balancing weight (8) carries out spacing position-limit mechanism, described position-limit mechanism is movably arranged on that many described columns (4) are gone up and it is positioned at balancing weight (8) below.
5. according to claim 1 or 2 described deflection of bridge span test instruments, it is characterized in that: described instrument erecting frame is fixedly mounted on the column (4) by setscrew nut (6), and described instrument erecting frame is provided with the instrument geometrical clamp (5) that is used for fixing described deflection of bridge span test instrumentation.
6. use instrument according to claim 1 or 2 described deflection of bridge span tests, it is characterized in that: described deflection of bridge span test instrumentation is dial gauge (12), and the bottom connection of the expansion link of described dial gauge (12) and balancing weight (8) touches.
7. use instrument according to the described deflection of bridge span test of claim 2, it is characterized in that: described chassis stationary installation is for being installed in a plurality of foot bolts (2) on the horizontal chassis (1).
8. use instrument according to claim 1 or 2 described deflection of bridge span tests, it is characterized in that: described horizontal chassis (1) is a disk, and many described columns (4) along the circumferential direction evenly are laid on the horizontal chassis (1); The quantity of described level is a plurality of, and a plurality of described level along the circumferential direction evenly is laid on the horizontal chassis (1).
9. use instrument according to the described deflection of bridge span test of claim 8, it is characterized in that: the quantity of described level is two, and described level is bubble tube (3) or square column level; The quantity of described column (4) is two.
10. according to the described deflection of bridge span test of claim 4 instrument, it is characterized in that: described balancing weight (8) top is provided with for the fixing grommet (11) of described deflection test rope (10) colligation, and described position-limit mechanism is for being installed in a plurality of stop nuts (7) on many root posts (4) respectively.
CN201120074857XU 2011-03-21 2011-03-21 Instrument for testing deflection of bridge CN202002786U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120074857XU CN202002786U (en) 2011-03-21 2011-03-21 Instrument for testing deflection of bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120074857XU CN202002786U (en) 2011-03-21 2011-03-21 Instrument for testing deflection of bridge

Publications (1)

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CN202002786U true CN202002786U (en) 2011-10-05

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564283A (en) * 2011-12-19 2012-07-11 天津大学 U-shaped frame for deflection test of bending test of wood structure beam
CN103090773A (en) * 2013-01-31 2013-05-08 西安瑞通路桥科技有限责任公司 Bridge loading test deflection testing instrument
CN103278299A (en) * 2013-05-20 2013-09-04 南京市计量监督检测院 Bridge deflectometer calibration device and method
CN103411529A (en) * 2013-08-28 2013-11-27 安科智慧城市技术(中国)有限公司 Measuring device
CN106403791A (en) * 2016-06-30 2017-02-15 南京理工大学 Horizontal plane deflection measurement apparatus
CN106525366A (en) * 2016-11-23 2017-03-22 广西交通科学研究院 Magnetic suspension type bridge deflection measuring device and measuring method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564283A (en) * 2011-12-19 2012-07-11 天津大学 U-shaped frame for deflection test of bending test of wood structure beam
CN103090773A (en) * 2013-01-31 2013-05-08 西安瑞通路桥科技有限责任公司 Bridge loading test deflection testing instrument
CN103278299A (en) * 2013-05-20 2013-09-04 南京市计量监督检测院 Bridge deflectometer calibration device and method
CN103411529A (en) * 2013-08-28 2013-11-27 安科智慧城市技术(中国)有限公司 Measuring device
CN106403791A (en) * 2016-06-30 2017-02-15 南京理工大学 Horizontal plane deflection measurement apparatus
CN106525366A (en) * 2016-11-23 2017-03-22 广西交通科学研究院 Magnetic suspension type bridge deflection measuring device and measuring method thereof

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