CN202274855U - Deflection testing system for bridge load test - Google Patents

Deflection testing system for bridge load test Download PDF

Info

Publication number
CN202274855U
CN202274855U CN2011204208922U CN201120420892U CN202274855U CN 202274855 U CN202274855 U CN 202274855U CN 2011204208922 U CN2011204208922 U CN 2011204208922U CN 201120420892 U CN201120420892 U CN 201120420892U CN 202274855 U CN202274855 U CN 202274855U
Authority
CN
China
Prior art keywords
deflection
test
bridge
instrument
deflection test
Prior art date
Application number
CN2011204208922U
Other languages
Chinese (zh)
Inventor
徐宏
许铁力
王双兴
师全海
Original Assignee
中铁一局集团有限公司
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 中铁一局集团有限公司 filed Critical 中铁一局集团有限公司
Priority to CN2011204208922U priority Critical patent/CN202274855U/en
Application granted granted Critical
Publication of CN202274855U publication Critical patent/CN202274855U/en

Links

Abstract

The utility model discloses a deflection testing system for a bridge load test, comprising a testing platform, an instrument support, a deflection testing instrument, a shield, a deflection testing data acquisition and processing device and a deflection transmitting device, wherein the instrument support is arranged on the testing platform; the deflection testing instrument is arranged on the instrument support; the shield is shielded on the testing platform; the deflection testing data acquisition and processing device is connected with the deflection testing instrument; the deflection generated by the tested bridge body is synchronously transmitted downward to the deflection transmitting device of the deflection testing instrument; and the deflection transmitting device comprises a suspension wire suspending at the bottom of the tested bridge body, and a weight balancing block which is fixed at the lower end of the suspension wire and stretches the suspension wire in a vertical state under the own action of gravity. The deflection testing system for a bridge load test has the advantages of having reasonable design, simple and convenient installation, laying and operation, higher operability, higher safety performance and accurate deflection testing data, and effectively solving the problems of strenuosity, material consumption, requirements for working aloft, lower system stability, time consumption for mounting and dismounting, difficulty in guaranteeing the deflection testing data, and the like.

Description

A kind of bridge load is tested the deflection test system

Technical field

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

Background technology

The bridge span structure deflection test is to one of major parameter that bridge superstructure detects and state of the art is evaluated; Especially in the bridge load process of the test, need to gather bridge span structure at the following deflection data of dead load (before promptly applying trial load) effect, apply trial load after the back deflection data of bridge span structure of deflection data, unloading (being the removal trial load) of bridge span structure.

At present; What bridge load test deflection test adopted basically is below bridge span structure, to set up the deflectometer support; Again at deflectometer support upper fixed clock gauge; And fixedly clock gauge contact pilotage directly with beam at the bottom of the test macro that contacts, and through the deflection test of above-mentioned test realization beam body under each operating mode.When adopting above-mentioned traditional deflection of bridge span test macro to test, setting up the deflectometer support needs certain human and material resources input, and it is comparatively complicated to set up operation; Especially when support is higher; Except less economical, the tester needs work high above the ground could accomplish the setting up of testing tool, dismounting and fault to get rid of, if transmission cable breaks down; Artificial reading can't be realized, and then can't guarantee the integrality of data acquisition.In addition, higher support self stability is relatively poor, can occur inevitably rocking, vibrating, thereby can give the deflection test great errors, and especially in wind environment was arranged, measuring accuracy often was difficult to guarantee.

The utility model content

The utility model technical matters to be solved is to above-mentioned deficiency of the prior art; Provide a kind of bridge load to test the deflection test system; Its reasonable in design, install to lay and easy and simple to handle, workable and security performance is good, the deflection test data are accurate, can effectively solve effort consumptive material that traditional deflection test system exists, need carry out work high above the ground, system stability is poor, assembling and disassembling is time-consuming, the deflection test data precision is difficult to problems such as assurance.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of bridge load is tested the deflection test system; It is characterized in that: comprise test platform, be installed in instrument support on the said test platform, be installed in that deflection test instrument, cover on the instrument support is contained in protective cover on the said test platform, the deflection test data acquisition of joining with said deflection test instrument and treating apparatus and the amount of deflection that bridge beam body to be tested produced is passed to synchronously the amount of deflection transfer device of said deflection test instrument downwards; Said amount of deflection transfer device comprises that the suspension line that hangs on bridge beam body to be tested bottom hangs the steel wire bottom and under the self gravitation effect, suspension line drawn the balancing weight into vertical state all the time with being fixed on; Said balancing weight is positioned at directly over the said deflection test instrument; Said instrument support, said deflection test instrument and balancing weight all cover and are contained in the protective cover, and said protective cover top has the through hole that supplies suspension line to pass.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said test platform is a mobile platform.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said mobile platform is the travelling car that road wheel is equipped with in the bottom, and on the said travelling car pushing hands is housed.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said balancing weight is conical balancing weight.

Above-mentioned a kind of bridge load is tested the deflection test system, it is characterized in that: the deflection test point place of said bridge beam body to be tested bottom is provided with the suspension hook that supplies the suspension line suspension, and the suspension line upper end is fixed on the suspension hook.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said deflection test instrument is a clock gauge.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said protective cover is the tempered glass cover.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said suspension line is steel wire or iron wire.

Above-mentioned a kind of bridge load is tested the deflection test system, and it is characterized in that: said deflection test data acquisition and treating apparatus comprise data collecting instrument that joins with said deflection test instrument and the data processor that joins with data collecting instrument.

Above-mentioned a kind of bridge load is tested the deflection test system, it is characterized in that: said suspension hook is fixed on the deflection test point place of said bridge beam body to be tested bottom through expansion bolt.

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

1, reasonable in design, installation are laid and are easy and simple to handle and workable, time saving and energy saving, and input cost is low.

2, with suspension apparatus at the bottom of the beam as the amount of deflection transfer device; Realized the reliable delivery of amount of deflection at the bottom of the beam, saved support and set up needed manpower and material input, economical rationality and to take under the bridge space very little; Generally need not carry out smoothly to ground, need not carry out based process yet support.

3, changed the method that clock gauge test deflection of bridge span is set up at traditional support top, realized the purpose that laying clock gauge near the ground and testing element are tested beam body amount of deflection, avoided work high above the ground, security improves greatly.

4, the amount of deflection transfer device result of use of being made up of steel wire suspension balancing weight is good, and intensity of steel wire is high, and front face area is little, and taper balancing weight steadily of centre of gravity, makes suspension system good stability in the amount of deflection transmittance process, and data acquisition signal is stable and reliably.

5, adopt the tempered glass protective cover, can effectively prevent the perturbation action of wind load to balancing weight and clock gauge, the while also prevents the direct collision that other possibly occur and rocks, guaranteed data acquisition original paper operate as normal.In addition, transparent tempered glass protective cover makes the clock gauge testing element have very strong visuality, and when data line broke down, the tester can obtain the deflection test data through the mode that manual work is read, and makes the acquisition mode of data accomplish dual fail-safe.

6, fixedly dial indicators rack and clock gauge on the transportable test panel platform; Make that whole testing device can be whole mobile on ground with the transportable test panel platform; Saved testing element assembling and disassembling consumed time, also avoided assembling and disassembling repeatedly the wearing and tearing and the mechanical injuries of testing element.

7, economical and efficient, result of use is good and practical value is high; It is reasonable in design, simple and convenient, strong operability and economical and efficient, safety labor-saving, good stability; For a kind of economy, convenient, efficient, installation and moving laborsaving convenient and steady data acquisition reliable, steadily, the deflection of bridge span test macro that is easy to control; It has reduced traditional bridge deflection test method when setting up dial indicators rack and setting up to the input of human and material resources; Avoided support to rock influence to measuring accuracy; And the application of tempered glass protective cover makes that this test macro and method test data in wind environment is arranged is reliable, precision is high; Thereby the utility model has solved effort consumptive material that traditional deflection test method exists, need carry out work high above the ground, system stability is poor, assembling and disassembling is time-consuming, data such as can't effectively obtain at a difficult problem during test macro fault, and result of use is good, is convenient to promote the use of.

In sum; The utility model reasonable in design, install to lay and easy and simple to handle, workable and security performance is good, the deflection test data are accurate, can effectively solve effort consumptive material that traditional deflection test system exists, need carry out work high above the ground, system stability is poor, assembling and disassembling is time-consuming, the deflection test data precision is difficult to problems such as assurance.

Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.

Description of drawings

Fig. 1 is the user mode reference diagram of the utility model.

Description of reference numerals:

1-instrument support; 2-bridge beam body to be tested; The 3-1-suspension line;

The 3-2-balancing weight; The 4-protective cover; The 5-clock gauge;

The 6-travelling car; The 7-pushing hands; The 8-1-data collecting instrument;

The 8-2-data processor; The 9-suspension hook.

Embodiment

As shown in Figure 1; The utility model comprises test platform, be installed in instrument support 1 on the said test platform, be installed in that deflection test instrument, cover on the instrument support 1 is contained in protective cover 4 on the said test platform, the deflection test data acquisition of joining with said deflection test instrument and treating apparatus and the amount of deflection that bridge beam body 2 to be tested is produced is passed to synchronously the amount of deflection transfer device of said deflection test instrument downwards; Said amount of deflection transfer device comprises that the suspension line 3-1 that hangs on bridge beam body to be tested 2 bottoms hangs steel wire 3-1 bottom and under the self gravitation effect, suspension line 3-1 drawn the balancing weight 3-2 into vertical state all the time with being fixed on; Said balancing weight 3-2 is positioned at directly over the said deflection test instrument; Said instrument support 1, said deflection test instrument and balancing weight 3-2 all cover and are contained in the protective cover 4, and said protective cover 4 tops have the through hole that supplies suspension line 3-1 to pass.

In the present embodiment, said test platform is a mobile platform.

During actual the use, said mobile platform is the travelling car 6 that road wheel is equipped with in the bottom, and pushing hands 7 is housed on the said travelling car 6.

In the present embodiment, said balancing weight 3-2 is conical balancing weight, and the good balance effect of said conical balancing weight.

In the present embodiment, the deflection test point place of said bridge beam body to be tested 2 bottoms is provided with the suspension hook 9 that supplies suspension line 3-1 suspension, and suspension line 3-1 upper end is fixed on the suspension hook 9.The actual laying when installing, said suspension hook 9 is fixed on the deflection test point place of said bridge beam body to be tested 2 bottoms through expansion bolt.

During actual the use, said suspension line 3-1 is steel wire or iron wire.In the present embodiment, said deflection test instrument is a clock gauge 5.Said protective cover 4 is the tempered glass cover.

Said deflection test data acquisition and treating apparatus comprise data collecting instrument 8-1 that joins with said deflection test instrument and the data processor 8-2 that joins with data collecting instrument 8-1.In the present embodiment, said data processor 8-2 is a computer, and all is connected through data line between clock gauge 5 and the data collecting instrument 8-1 and between data collecting instrument 8-1 and the data processor 8-2.

To sum up, the utility model mainly comprises amount of deflection transfer device, deflection test instrument (being clock gauge 5), deflection test data acquisition and treating apparatus, transportable test panel platform and the protective device of being made up of the tempered glass cover.

During actual the use, the test process of the utility model mainly may further comprise the steps:

Step 1, confirm at the bottom of the beam deflection test point position and lay the expansion bolt that has suspension hook 9, according to the steel wire or the iron wire (being suspension line 3-1) of test point apart from the height suspension suitable length on ground, fixing conical balancing weight in the lower end of suspension line 3-1.

Step 2, the transportable test panel platform is moved to position under the deflection test point; And the height and the position of clock gauge 5 adjusted; Make the contact pilotage of clock gauge 5 contact and clock gauge 5 has certain reading (generally being advisable with 5mm~10mm) with conical balancing weight; Simultaneously the contact pilotage of clock gauge 5 be positioned at conical balancing weight under, promptly said contact pilotage props up the bottom centre place that withstands on conical balancing weight.

The stability of step 3, inspection instrument support 1 and transportable test panel platform, fixing tempered glass cover afterwards, and clock gauge 5 and deflection test data acquisition and treating apparatus joined.

After step 4, system debug finished, the deflection data that clock gauge 5 is tested carried out data acquisition.

Step 5, according to testing regulations bridge beam body 2 to be tested is loaded, the deflection data that the stable back of load is tested clock gauge 5 for the second time carries out data acquisition; And the unloading and wait for 5~10 minutes after, the deflection data of for the third time clock gauge 5 being tested carries out data acquisition.

After test is accomplished,, can obtain bridge beam body 2 to be tested amount of deflection situation of change before and after loading through to the comparative analysis of image data and the image data second time first; Through to the second time image data and the comparative analysis of image data for the third time, can obtain the elastic recovery and the residual deformation situation of bridge beam body 2 to be tested.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.

Claims (10)

1. a bridge load is tested the deflection test system; It is characterized in that: comprise test platform, be installed in instrument support (1) on the said test platform, be installed in that deflection test instrument, cover on the instrument support (1) is contained in protective cover (4) on the said test platform, the deflection test data acquisition of joining with said deflection test instrument and treating apparatus and the amount of deflection that bridge beam body to be tested (2) is produced is passed to synchronously the amount of deflection transfer device of said deflection test instrument downwards; Said amount of deflection transfer device comprises the suspension line (3-1) that hangs on bridge beam body to be tested (2) bottom and is fixed on suspension steel wire (3-1) bottom and under the self gravitation effect, suspension line (3-1) is drawn the balancing weight (3-2) into vertical state all the time; Said balancing weight (3-2) is positioned at directly over the said deflection test instrument; Said instrument support (1), said deflection test instrument and balancing weight (3-2) all cover and are contained in the protective cover (4), and said protective cover (4) top has the through hole that supplies suspension line (3-1) to pass.
2. test the deflection test system according to the described a kind of bridge load of claim 1, it is characterized in that: said test platform is a mobile platform.
3. test the deflection test system according to the described a kind of bridge load of claim 2, it is characterized in that: said mobile platform is the travelling car (6) that road wheel is equipped with in the bottom, and pushing hands (7) is housed on the said travelling car (6).
4. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads, it is characterized in that: said balancing weight (3-2) is conical balancing weight.
5. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads; It is characterized in that: the deflection test point place of said bridge beam body to be tested (2) bottom is provided with the suspension hook (9) that supplies suspension line (3-1) suspension, and suspension line (3-1) upper end is fixed on the suspension hook (9).
6. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads, it is characterized in that: said deflection test instrument is clock gauge (5).
7. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads, it is characterized in that: said protective cover (4) is the tempered glass cover.
8. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads, it is characterized in that: said suspension line (3-1) is steel wire or iron wire.
9. test the deflection test system according to claim 1,2 or 3 described a kind of bridge loads, it is characterized in that: said deflection test data acquisition and treating apparatus comprise data collecting instrument (8-1) that joins with said deflection test instrument and the data processor (8-2) that joins with data collecting instrument (8-1).
10. test the deflection test system according to the described a kind of bridge load of claim 5, it is characterized in that: said suspension hook (9) is fixed on the deflection test point place of said bridge beam body to be tested (2) bottom through expansion bolt.
CN2011204208922U 2011-10-29 2011-10-29 Deflection testing system for bridge load test CN202274855U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204208922U CN202274855U (en) 2011-10-29 2011-10-29 Deflection testing system for bridge load test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204208922U CN202274855U (en) 2011-10-29 2011-10-29 Deflection testing system for bridge load test

Publications (1)

Publication Number Publication Date
CN202274855U true CN202274855U (en) 2012-06-13

Family

ID=46195206

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204208922U CN202274855U (en) 2011-10-29 2011-10-29 Deflection testing system for bridge load test

Country Status (1)

Country Link
CN (1) CN202274855U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103791795A (en) * 2014-02-24 2014-05-14 甘肃省交通科学研究院有限公司 Bridge static load test displacement monitoring device
CN103940561A (en) * 2014-04-21 2014-07-23 广西交通科学研究院 Method for measuring deflection of main arch rib of sling (rod) arch bridge precisely and device thereof
CN105300342A (en) * 2015-11-09 2016-02-03 中国北车集团大同电力机车有限责任公司 Locomotive body deflection measurement method
CN105423880A (en) * 2015-11-10 2016-03-23 长安大学 Method for suspending main cable to measure bridge deflection
CN105716511A (en) * 2016-03-31 2016-06-29 西南交通大学 Bridge static load test deflection dial indicator measuring and connecting device
CN105928447A (en) * 2016-06-13 2016-09-07 中冶建筑研究总院有限公司 Rapid bridge flexibility measuring device
CN104615888B (en) * 2015-02-06 2017-02-22 华北水利水电大学 Method for recognizing moving vehicle load on bridge based on generalized minimal residual algorithm

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103791795A (en) * 2014-02-24 2014-05-14 甘肃省交通科学研究院有限公司 Bridge static load test displacement monitoring device
CN103791795B (en) * 2014-02-24 2017-06-16 甘肃省交通科学研究院有限公司 Bridge static loading experiment displacement monitor
CN103940561A (en) * 2014-04-21 2014-07-23 广西交通科学研究院 Method for measuring deflection of main arch rib of sling (rod) arch bridge precisely and device thereof
CN104615888B (en) * 2015-02-06 2017-02-22 华北水利水电大学 Method for recognizing moving vehicle load on bridge based on generalized minimal residual algorithm
CN105300342A (en) * 2015-11-09 2016-02-03 中国北车集团大同电力机车有限责任公司 Locomotive body deflection measurement method
CN105423880A (en) * 2015-11-10 2016-03-23 长安大学 Method for suspending main cable to measure bridge deflection
CN105423880B (en) * 2015-11-10 2017-11-24 长安大学 A kind of method for hanging main push-towing rope measurement deflection of bridge span
CN105716511A (en) * 2016-03-31 2016-06-29 西南交通大学 Bridge static load test deflection dial indicator measuring and connecting device
CN105716511B (en) * 2016-03-31 2018-11-30 西南交通大学 Bridge static loading test amount of deflection dial gauge measures attachment device
CN105928447A (en) * 2016-06-13 2016-09-07 中冶建筑研究总院有限公司 Rapid bridge flexibility measuring device
CN105928447B (en) * 2016-06-13 2019-08-02 中冶建筑研究总院有限公司 A kind of rapid survey deflection of bridge span device

Similar Documents

Publication Publication Date Title
CN101852659B (en) Oil derrick stress data acquisition system based on fiber Bragg grating sensor network
CN205415601U (en) Tunnel lining multiposition detects with geological radar antenna machinery pushing arm bracket
CN201402180Y (en) Stacked detection device for detecting weighing performance of large-scale weighing machines
CN102249152B (en) Device and method for detecting movable counter weight of crane
CN103256967A (en) System for detecting mass, mass center and mass offcenter of cylinder
CN205353351U (en) Tunnel lining quality nondestructive test equipment
CN101788397B (en) Method for supporting static test for light-aircraft fore fuselages
CN106240841A (en) A kind of gear test charger
CN204043883U (en) A kind of unmanned plane skid landing system drop-test platform
CN205750526U (en) Controller of new energy automobile software and hardware integrated test system
CN102621013A (en) Dynamic performance testing system
CN105177625B (en) A kind of method that electrolytic cell changes anode
CN202420343U (en) Measuring device for automobile rear axle mounting hole
CN103175702A (en) Fatigue test device and method for axle
CN205620220U (en) Two -way restraint charpy impact power loading test device of coal petrography
CN101672898B (en) Simulated condition testing device of fuel cell power generation system
CN204866570U (en) Automatic equipment is select in classification of weighing
CN102502406A (en) Crane boom working parameter measuring method, controller, apparatus, and crane
CN203849027U (en) Large-scale arch type flexible uniform distribution loading tunnel support model test system
CN203502152U (en) Testing device for rolling resistance of tire
CN102841312B (en) Remote-control key endurance testing device
CN102944417A (en) Platform and method for testing static rigidity of machine tool spindle
CN102081145A (en) Functional verification platform of battery management system
CN100520340C (en) Test device for safety lock of high-rise working cradle
CN101833076A (en) Terminal automatic detection device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant