CN106289692A - Variable beam length simply supported beam and continuous beam self-vibration characteristic test platform - Google Patents
Variable beam length simply supported beam and continuous beam self-vibration characteristic test platform Download PDFInfo
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- CN106289692A CN106289692A CN201610623212.4A CN201610623212A CN106289692A CN 106289692 A CN106289692 A CN 106289692A CN 201610623212 A CN201610623212 A CN 201610623212A CN 106289692 A CN106289692 A CN 106289692A
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- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- 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
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- 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
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention discloses a kind of variable beam length simply supported beam and continuous beam self-vibration characteristic test platform, including sliding support, spacing bearing, movable base, fixed pedestal, foundation platform, acceleration transducer, computer, dynamic signalling analysis system, power hammer sensor；Across footpath, movable base and sliding support can be adjusted according to test beam and fix, rolling bearing can be moved along sliding rail, to sliding support, limited support space fine-adjusting；After sliding support, limited support spacing determine, limiting plate is placed at the gap of bearing and sliding rail, spacing fixing to bearing.Test beam is seated on sliding support, limited support；By hook bolt and diplopore clamping plate, sliding support, limited support are fixed with test beam support end；Acceleration transducer is arranged on the measuring point of test beam surface, and acceleration transducer, power hammer sensor connects dynamic signalling analysis system, and electrically connects with computer；Apply dynamic load by power hammer sensor, self-vibration characteristic test can be carried out.By movement or the interpolation of quantity of movable base, can realize different beam lengths, the different self-vibration characteristic across the simply supported beam counted or continuous beam are tested, embody versatility and the accuracy of test platform.
Description
Technical field
The invention belongs to road and bridge engineering technical field, relate to a kind of self-vibration characteristic test platform, particularly relate to a kind of variable
Beam length simply supported beam and continuous beam self-vibration characteristic test platform；It is particularly well-suited to simply supported beam and continuous beam.
Background technology
The self-vibration characteristic of bridge structure is the important evidence of bridge standing state assessment, and the self-vibration for phase bridge of being on active service is special
Property test result can be used for the aspects such as the impact coefficient calculating of bridge, non-destructive tests.Self-vibration characteristic test result has objectivity
By force, the advantages such as the disease of concealment part in structure, testing time be short and easy to operate can be found.Therefore, the self-vibration of bridge structure
Characteristic is significant for design, detection and the state estimation of bridge structure.Universities and colleges of China and other scientific research institutions
Carry out numerous studies for bridge structure self-vibration characteristic for non-destructive tests and the Bridge State Assessment relied on, and define one
A little relevant theoretical methods, these theoretical methods need the accuracy by experimental verification self-vibration characteristic can put into practice.And
When the shortage of Common Testing platform causes test beam type and beam length to change, test material be difficult to recycling, cause the biggest
Waste, and test funds and test period are greatly increased.
It is widely used, for simply supported beam as two kinds of basic structure forms at science of bridge building field, simply supported beam and continuous beam
And the self-vibration characteristic test of continuous beam is significant.And the set-up mode of bridge structure supporting condition is for the test of self-vibration characteristic
Result impact is relatively big, if the supporting condition of bridge structure can not be simulated exactly, it will cause the test result of self-vibration characteristic
Inaccurate, its error test result variable quantity that even greater than damage disease causes, so that Bridge State Assessment result is not
Enough accurate.Only provide vertical displacement to retrain it is known that the supporting condition of simply supported beam and continuous beam is two end bearings, and do not provide
Restricted joint angle.In existing simply supported beam and the test of continuous beam self-vibration characteristic, support system uses rubber support form mostly, and it is made
2 points are mainly had: (1) reaches preferable signal to noise ratio, power hammer excitation letter for making test data for the reason that supporting condition is not accurate enough
Number should be more notable, and owing to test beam deadweight is relatively light, the lower beam-ends of power hammer excitation can be inevitably generated upwards rigid body displacement；
(2) relatively big due to rubber support and beam-ends contact area, the elastic deformation of the lower rubber support of power hammer excitation can affect turning of beam-ends
Angular displacement, will certainly produce impact to the test result of self-vibration characteristic.Therefore, a kind of variable beam length simply supported beam and continuous beam are invented
Self-vibration characteristic test result Common Testing platform accurately just seems the most urgent.
Summary of the invention
The invention discloses a kind of variable beam length simply supported beam and continuous beam self-vibration characteristic test platform, to solve prior art
Middle supporting condition is not accurate enough, affects the test result of self-vibration characteristic；Lack Common Testing platform, test beam type and beam length
During change, test material is difficult to recycling, causes the biggest waste, and test funds and test period such as are greatly increased at the problem.
The present invention includes sliding support, spacing bearing, movable base, fixed pedestal, foundation platform, acceleration sensing
Device, computer, dynamic signalling analysis system, power hammer sensor；Movable base, foundation platform are concrete component；Can
There is on mobile foundation connecting hole；One end of foundation platform has the fixed pedestal of projection；Fixed pedestal formed by integrally casting is at ground
One end of platform；The other end has the hole equal with the connecting hole pitch-row on movable base, constitutes a distribution hole group；Ground
Distribution hole group group number on platform is more than 1, and distribution hole group linear array is distributed；Securing member connects the connecting hole on movable base
Hole with on foundation platform, is securedly mounted to movable base on foundation platform；By changing the connection on movable base
Hole and the hole link position of foundation platform, change the distance between movable base, fixed pedestal；Sliding support is fastenedly connected peace
It is contained on movable base；Spacing bearing is fastenedly connected and is arranged on fixed pedestal；Spacing bearing includes identical the propping up of 2 block structures
Fagging, rolling bearing, limited support, 2 hook bolts, diplopore clamping plate；There is on diplopore clamping plate hook bolt and pass through hole；Rotate
Bearing is installed on the supporting plate；Limited support is connected with rolling bearing；The hook portion of 2 hook bolts is joined with limited support
Close；2 hook bolt tops are coordinated by hole with the hook bolt of diplopore clamping plate；Sliding support includes identical the propping up of 2 block structures
Fagging, rolling bearing, sliding support, 2 hook bolts, diplopore clamping plate, 4 pieces of floors, 2 limiting plates；Two gripper shoe both sides
Symmetrically the most between the upper and lower every arranging two floors；Spacing is equal to bearing diameter, and spaced apart 2 floors form slip rail
Road；Rolling bearing is arranged in sliding rail；Sliding support, limited support are in a horizontal plane；Can be according to test beam across footpath
Movable base and sliding support are adjusted and fix, it is achieved sliding support, spacing standoff distance regulate；And can be along slip
Track moves rolling bearing, to sliding support, limited support space fine-adjusting；After sliding support, limited support spacing determine, two
The right angled triangle limiting plate that structure is identical is placed at the gap of bearing and sliding rail, spacing fixing to bearing.Test beam is put
It is placed on sliding support, limited support；Hook bolt passes through hole through the hook bolt of diplopore clamping plate, and nut is joined with hook bolt
Close, nut compressing diplopore clamping plate, diplopore clamping plate and sliding support, limited support fixation test beam；Acceleration transducer is arranged in
On the measuring point of test beam surface, acceleration transducer, power hammer sensor connects dynamic signalling analysis system, and dynamo-electric with calculating
Connect；Apply dynamic load by power hammer sensor, self-vibration characteristic test can be carried out.
Optimally, foundation platform of the present invention also includes ground bearing plate；Movable base includes movable base bearing plate；
Fixed pedestal includes fixed pedestal bearing plate；There is on ground bearing plate the bolt hole identical with foundation platform pitch-row；Removable
There is on pedestal bearing plate the hole identical with movable base pitch-row；Movable base bearing plate, fixed pedestal bearing plate also have
Have and sliding support, hole that spacing supporting stand hole distance is identical；2 pieces of movable base bearing plates are separately mounted to table on movable base
Face and lower surface；Fixed pedestal bearing plate is arranged on fixed pedestal upper surface；Securing member connects the hole on bearing plate, removable base
Hole on seat, the ground bearing plate bolt hole on foundation platform, be fastenedly connected sliding support and movable base and be arranged on ground
On based platform.
Operating procedure is as follows:
The first step, installs spacing bearing, sliding support:
Spacing bearing is fastenedly connected with fixed pedestal；Sliding support is fastenedly connected with mobile foundation；
Second step, experiment with measuring beam beam length, regulation movable base and the distance of fixed pedestal；
3rd step, moves the rolling bearing on sliding support, mobile sliding support, finely tunes spacing bearing, slip along sliding rail
The sliding support of bearing, limited support distance；
4th step, spacing to bearing:
Right angled triangle limiting plate identical for two structures is placed at the rolling bearing gap with sliding rail, until connecting rolling
The sliding support of dynamic bearing cannot move.
5th step, test beam fixes:
Test beam two ends are respectively placed on sliding support and spacing bearing, make test beam be in level.
The hook bolt of sliding support and limited support two ends is disposed vertically, the unthreaded hole of diplopore clamping plate is directed at hook
Type bolt, and make test beam support end fix with the screw cap anchoring that 4 structures are identical.
6th step, arranges acceleration transducer, carries out self-vibration characteristic test.
Test beam surface measuring point is arranged acceleration transducer, hammers acceleration transducer and power into shape sensor and access dynamically
Signal testing analyzes the interface channel of system, and connects computer, applies dynamic load by power hammer sensor, carries out self-vibration special
Property test.
The medicine have the advantages that the interpolation of the movement by movable base or quantity, can realize different beam lengths, no
Test with across the simply supported beam of number or the self-vibration characteristic of continuous beam, embody the versatility of test platform；The present invention can be big
Specially the accurately test of the self-vibration characteristic that universities and colleges and other scientific research institutions carry out simply supported beam and continuous beam provides general-purpose platform；The present invention
Supporting condition for girder construction extremely presses close to the supporting condition of simply supported beam or continuous beam, drastically increases measuring accuracy, body
Show the accuracy of the present invention.
Accompanying drawing explanation
Fig. 1 is that self-vibration characteristic test platform of the present invention tests free beam free beam schematic diagram；
Fig. 2 is self-vibration characteristic test platform principle schematic of the present invention；
Fig. 3 is foundation platform schematic diagram；
Fig. 4 is sliding support schematic diagram；
Fig. 5 is spacing bearing schematic diagram；
Fig. 6 is movable base schematic diagram；
Fig. 7 is fixed pedestal schematic diagram；
In figure: 1 sliding support, 2 spacing bearings, 3 movable bases, 4 fixed pedestals, 5 foundation platforms, 6 gripper shoes, 7 floors, 8
Flat base, 9 sliding rails, 10 rolling bearings, 11 sliding supports, 12 hook bolts, 13 diplopore clamping plate, 14 limiting plates, 15 limits
Position support, 16 rolling bearings, 17 ground bearing plates, 18 movable base bearing plates, 19 fixed pedestal bearing plates, 20 acceleration pass
Sensor, 21 computers, 22 dynamic signalling analysis systems, 23 power hammer sensor, 3a connecting hole, 5a hole, 8a installing hole, 17a
Bolt hole, 18a hole, 18b hole, 19b hole.
Detailed description of the invention
One embodiment of the present of invention is described in detail below in conjunction with accompanying drawing.
Embodiment 1
The embodiment of the present invention is as it is shown in figure 1, include sliding support 1, spacing bearing 2, movable base 3, foundation platform 5, accelerate
Degree sensor 20, computer 21, dynamic signalling analysis system 22, power hammer sensor 23.
As shown in Figure 1, Figure 2, Figure 4 shows, sliding support 1 includes gripper shoe 6 that 2 block structures are identical, rolling bearing 10, slides
Support 11,2 hook bolts 12, diplopore clamping plate 13,4 pieces of floors 7,2 limiting plates 14, flat bases 8；Two gripper shoe 6 both sides
Symmetrically the most between the upper and lower every arranging two floors 7；Spacing is equal to rolling bearing 10 diameter, and spaced apart 2 floors 7 are formed
Sliding rail 9；Rolling bearing 10 is arranged in sliding rail 9；Sliding support 11 is connected with rolling bearing 10；2 hooks
The hook portion of bolt 12 coordinates with limited support 15；The hook bolt of 2 hook bolt 12 top and diplopore clamping plate 13 is joined by hole
Close；There are on flat base 8 four installing hole 8a.
As shown in Figure 1, Figure 2, Figure 5, spacing bearing 2 include gripper shoe 6 that 2 block structures are identical, rolling bearing 16, spacing
Support 15,2 hook bolts 12, diplopore clamping plate 13, flat bases 8；There is on diplopore clamping plate 13 hook bolt 12 and pass through hole；Rotate
Bearing 16 is arranged in gripper shoe 6；Limited support 15 is connected with rolling bearing 16；The hook portion of 2 hook bolts 12 and limit
Position supports 15 cooperations；2 hook bolt 12 tops are coordinated by hole with the hook bolt of diplopore clamping plate 13；Have on flat base 8
There are four installing hole 8a；
As shown in Figure 1 and Figure 2, sliding support 11, limited support 15 are in a horizontal plane.
As in figure 2 it is shown, one end of foundation platform 5 has the fixed pedestal 4 of projection；Fixed pedestal 4 formed by integrally casting is at ground
One end of platform 5；The other end has the hole 5a equal with the connecting hole 3a pitch-row on movable base 3, constitutes a distribution hole
Group；Distribution hole group group number on foundation platform 5 is more than 1, and distribution hole group linear array is distributed；
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 6, Fig. 7, movable base 3, foundation platform 5 are concrete component；Foundation platform 5 also wraps
Include a metal ground bearing plate 17；Movable base includes two metal movable base bearing plates 18；Fixed pedestal includes
One metal fixed pedestal bearing plate 19；There are on movable base 3 concrete component four connecting hole 3a；Movable base holds
There is on fishplate bar 18 the hole 18a identical with movable base pitch-row；Have identical with foundation platform 5 pitch-row on ground bearing plate 17
Bolt hole 17a；Movable base bearing plate 18, fixed pedestal bearing plate 19 also have with on sliding support 1, spacing bearing 2
Identical hole 18b, the hole 19b of flat base 8 installing hole 8a pitch-row；2 pieces of movable base bearing plates 18 are separately mounted to move
Moving base upper surface and lower surface；Fixed pedestal bearing plate 19 is arranged on fixed pedestal upper surface；Securing member connects bearing plate 18
On hole 18a, the hole 3a on movable base 3, the ground bearing plate 17 bolt hole 17a on foundation platform 5, by sliding support 1
It is fastenedly connected with movable base 3 and is arranged on foundation platform 5；
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7；Put down with ground by changing the connecting hole 3a on movable base 3
The hole 5a link position of platform 5, changes the distance between movable base 3, fixed pedestal 4；Sliding support 1 is fastenedly connected and is arranged on
On movable base 3；Spacing bearing 2 is fastenedly connected and is arranged on fixed pedestal 4；Can according to test beam across footpath to movable base
3 and sliding support 1 be adjusted and fix, it is achieved sliding support 1, spacing bearing 2 spacing regulate；And can move along sliding rail 9
Dynamic rolling bearing 10, to sliding support 1, limited support 2 space fine-adjusting；After sliding support 1, limited support 2 spacing determine, two
The right angled triangle limiting plate 14 that structure is identical is placed at the gap of rolling bearing 10 and sliding rail 9, spacing fixing to bearing.
Test beam is seated on sliding support 11, limited support 16；Hook bolt 12 passes through through the hook bolt 12 of diplopore clamping plate 13
Hole, nut coordinates with hook bolt 12, nut compressing diplopore clamping plate 13, diplopore clamping plate 13 and sliding support 11, limited support 16
Anchorage experiment beam；Acceleration transducer is arranged on the measuring point of test beam surface, and acceleration transducer 20, power hammer sensor 23 connects
Dynamic signalling analysis system 22, and be connected with computer 21；Apply dynamic load by power hammer sensor 23, can carry out
The self-vibration characteristic test of simply supported beam.
Operating procedure is as follows:
The first step, installs spacing bearing, sliding support:
Spacing bearing is fastenedly connected with fixed pedestal；Sliding support is fastenedly connected with mobile foundation；
Second step, experiment with measuring beam beam length, regulation movable base and the distance of fixed pedestal；
3rd step, moves rolling bearing 10 on sliding support along sliding rail 9, mobile sliding support 11, finely tune spacing bearing 2,
The sliding support 11 of sliding support 1, limited support 15 distance；
4th step, spacing to rolling bearing 10:
Right angled triangle limiting plate 14 identical for two structures is placed at the rolling bearing 10 gap with sliding rail 9, until
The sliding support 11 connecting rolling bearing 10 cannot move.
5th step, test beam clamping:
Test beam two ends are respectively placed on sliding support and spacing bearing, make test beam be in level.
The hook bolt of sliding support and limited support two ends is disposed vertically, the unthreaded hole of diplopore clamping plate is directed at hook
Type bolt, and make test beam support end fix with the screw cap anchoring that 4 structures are identical.
6th step, arranges acceleration transducer, carries out self-vibration characteristic test.
Test beam surface measuring point is arranged acceleration transducer, hammers acceleration transducer and power into shape sensor and access dynamically
Signal testing analyzes the interface channel of system, and connects computer 21, applies dynamic load by power hammer sensor, carries out freely-supported
The self-vibration characteristic test of beam.
Embodiment 2
According to Fig. 1 ~ Fig. 7, on the basis of embodiment 1, achieving use by increase movable base and sliding support can
Become beam length simply supported beam and the self-vibration characteristic of continuous beam self-vibration characteristic test platform test continuous beam on many supports.
Claims (2)
1. a variable beam length simply supported beam and continuous beam self-vibration characteristic test platform；It is characterized in that: include sliding support, spacing
Bearing, movable base, fixed pedestal, foundation platform, acceleration transducer, computer, dynamic signalling analysis system, power
Hammer sensor；There is on movable base connecting hole；One end of foundation platform have projection fixed pedestal, the other end have with
The hole that connecting hole pitch-row on movable base is equal, constitutes a distribution hole group；Distribution hole group group number on foundation platform is big
In 1, distribution hole group linear array is distributed；Securing member connects the connecting hole on movable base and the hole on foundation platform, can
Mobile foundation is securedly mounted on foundation platform；It is connected position with the hole of foundation platform by changing the connecting hole on movable base
Put, change the distance between movable base, fixed pedestal；Sliding support is fastenedly connected and is arranged on movable base；Spacing
Bearing is fastenedly connected and is arranged on fixed pedestal；Spacing bearing include gripper shoe that 2 block structures are identical, rolling bearing, spacing
Support, 2 hook bolts, diplopore clamping plate；There is on diplopore clamping plate hook bolt and pass through hole；Rolling bearing is installed on the supporting plate；
Limited support is connected with bearing fit；The hook portion of 2 hook bolts coordinates with limited support；2 hook bolt tops and diplopore
The hook bolt of clamping plate is coordinated by hole；Sliding support include gripper shoe that 2 block structures are identical, rolling bearing, sliding support, 2
Individual hook bolt, diplopore clamping plate, 4 pieces of floors, 2 limiting plates；Two gripper shoe lateral symmetry ground are the most between the upper and lower every arranging two
Individual floor；Spacing is equal to bearing diameter, and spaced apart 2 floors form sliding rail；Rolling bearing is arranged on sliding rail
In；Sliding support, limited support are in a horizontal plane；Movable base and sliding support are adjusted across footpath according to test beam
Save and fixing, and move rolling bearing along sliding rail, to sliding support, limited support space fine-adjusting；Sliding support, spacing
After tie distance determines, the right angled triangle limiting plate that 2 structures are identical is placed at bearing and the gap of sliding rail, limits bearing
Position is fixing；Test beam is seated on sliding support, limited support；Hook bolt passes through hole through the hook bolt of diplopore clamping plate,
Nut coordinates with hook bolt, nut compressing diplopore clamping plate, diplopore clamping plate and sliding support, limited support fixation test beam；Add
Velocity sensor is arranged on the measuring point of test beam surface, and acceleration transducer, power hammer sensor connects dynamic signalling analysis
System, and electrically connect with computer；Apply dynamic load by power hammer sensor, self-vibration characteristic test can be carried out.
One the most according to claim 1 variable beam length simply supported beam and continuous beam self-vibration characteristic test platform；Its feature exists
In: foundation platform also includes ground bearing plate；Movable base includes movable base bearing plate；Fixed pedestal includes fixed base
Seat bearing plate；There is on ground bearing plate the bolt hole identical with foundation platform pitch-row；Have on movable base bearing plate with
The hole that movable base pitch-row is identical；Movable base bearing plate, fixed pedestal bearing plate also have with sliding support, spacing
Bore is away from identical hole；2 pieces of movable base bearing plates are separately mounted to movable base upper surface and lower surface；Fixed pedestal
Bearing plate is arranged on fixed pedestal upper surface；On hole on securing member connection bearing plate, the hole on movable base, foundation platform
Ground bearing plate bolt hole, sliding support and movable base are fastenedly connected and are arranged on foundation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623212.4A CN106289692B (en) | 2016-08-02 | 2016-08-02 | Variable beam length simply supported beam and continuous beam self-vibration characteristic test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623212.4A CN106289692B (en) | 2016-08-02 | 2016-08-02 | Variable beam length simply supported beam and continuous beam self-vibration characteristic test platform |
Publications (2)
| Publication Number | Publication Date |
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| CN106289692A true CN106289692A (en) | 2017-01-04 |
| CN106289692B CN106289692B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610623212.4A Expired - Fee Related CN106289692B (en) | 2016-08-02 | 2016-08-02 | Variable beam length simply supported beam and continuous beam self-vibration characteristic test platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489748A (en) * | 2018-03-23 | 2018-09-04 | 西安建筑科技大学 | A kind of experimental rig and test method for continuous bridge long period Study of Cyclic Loading |
| CN109868735A (en) * | 2019-03-28 | 2019-06-11 | 福州大学 | The experimental rig and its method of the transport of bridge floor continuous structure test component, lifting and load |
| CN110646510A (en) * | 2019-10-09 | 2020-01-03 | 北京林业大学 | Nondestructive testing test bench and method for wooden component by knocking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2004222710A1 (en) * | 2004-10-19 | 2006-05-04 | Air2, Llc | Non-destructive testing of in-service wooden beams |
| CN201569554U (en) * | 2009-12-31 | 2010-09-01 | 重庆大学 | Integrated modality analyzer |
| CN104132791A (en) * | 2014-07-17 | 2014-11-05 | 浙江工业大学 | Operation mode analysis experiment method and device based on pulse excitation |
| CN104655385A (en) * | 2014-12-31 | 2015-05-27 | 中国铁路总公司 | Railroad bridge substructure health status quantitative evaluation method |
| CN204694463U (en) * | 2015-06-19 | 2015-10-07 | 重庆大学 | There is sidewise restraint girder steel monolithic stability plate test loading system under single-point loading effect |
-
2016
- 2016-08-02 CN CN201610623212.4A patent/CN106289692B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2004222710A1 (en) * | 2004-10-19 | 2006-05-04 | Air2, Llc | Non-destructive testing of in-service wooden beams |
| CN201569554U (en) * | 2009-12-31 | 2010-09-01 | 重庆大学 | Integrated modality analyzer |
| CN104132791A (en) * | 2014-07-17 | 2014-11-05 | 浙江工业大学 | Operation mode analysis experiment method and device based on pulse excitation |
| CN104655385A (en) * | 2014-12-31 | 2015-05-27 | 中国铁路总公司 | Railroad bridge substructure health status quantitative evaluation method |
| CN204694463U (en) * | 2015-06-19 | 2015-10-07 | 重庆大学 | There is sidewise restraint girder steel monolithic stability plate test loading system under single-point loading effect |
Non-Patent Citations (1)
| Title |
|---|
| 谢红霞等: "冲击荷载进行桥梁模态试验的研究", 《公路交通科技》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489748A (en) * | 2018-03-23 | 2018-09-04 | 西安建筑科技大学 | A kind of experimental rig and test method for continuous bridge long period Study of Cyclic Loading |
| CN108489748B (en) * | 2018-03-23 | 2019-11-12 | 西安建筑科技大学 | A kind of experimental rig and test method for continuous bridge long period Study of Cyclic Loading |
| CN109868735A (en) * | 2019-03-28 | 2019-06-11 | 福州大学 | The experimental rig and its method of the transport of bridge floor continuous structure test component, lifting and load |
| CN109868735B (en) * | 2019-03-28 | 2024-03-26 | 福州大学 | Test device and method for transporting, hoisting and loading bridge deck continuous structure test member |
| CN110646510A (en) * | 2019-10-09 | 2020-01-03 | 北京林业大学 | Nondestructive testing test bench and method for wooden component by knocking method |
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| Publication number | Publication date |
|---|---|
| CN106289692B (en) | 2018-08-10 |
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