CN209148445U - A kind of multiaxis hierarchical loading device - Google Patents
A kind of multiaxis hierarchical loading device Download PDFInfo
- Publication number
- CN209148445U CN209148445U CN201821995879.8U CN201821995879U CN209148445U CN 209148445 U CN209148445 U CN 209148445U CN 201821995879 U CN201821995879 U CN 201821995879U CN 209148445 U CN209148445 U CN 209148445U
- Authority
- CN
- China
- Prior art keywords
- level
- support
- load distribution
- pressing plate
- distribution beam
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of multiaxis hierarchical loading devices comprising first order load distribution beam and two second level load distribution beams, first order load distribution beam lower surface both ends are fixedly installed first order pressing plate respectively；The upper surface of second level load distribution beam is fixedly installed first order support；Two second level load distribution beams are separately positioned on the lower section of two first order pressing plates, and the protrusion of first order support is contained in the groove of first order pressing plate；The both ends of second level load distribution beam lower surface are fixedly installed second level pressing plate respectively；Second level support is provided with below each second level pressing plate, and the protrusion of second level support is contained in the groove of second level pressing plate.The utility model is by being arranged in different positions from support for pressing plate, and guarantee test beam can be acted on by load multi-point shooting simultaneously, with simulation test joist support by the mechanical property of multiple spot difference load.This loading device simple structure, using effect be good, low cost, high safety, and it is wide to try out range.
Description
Technical field
The utility model belongs to reinforced beam loading test engineering device technique field, and in particular to a kind of classification of multiaxis plus
It carries and sets more particularly to a kind of reinforced beam multiaxis (multiple spot) fatigue loading and multiaxis (multiple spot) static force loading device.
Background technique
With the continuous development of scientific practice and engineering technology, that intensity to structural test piece and mechanical characteristic carry out is accurate,
Effective test is research new theory, the essential means of new process.High performance multiple spot Based on Electro-hydraulic Loading Servo System is real
The important guarantee of this existing means.In reinforced beam fatigue test, conventional test method is matched using load sensor
Close control and application that hydraulic jack and servo hydraulic system carry out load, conventional test can only carry out 3 points or 4 points it is curved
Song load, trial stretch are relatively narrow.Since in Practical Project, the stress of armored concrete girder construction is complicated, simple 3 points or four
Point underload differs larger with actual conditions to reflect the true mechanical response of structure, it is therefore desirable to have in high precision, greatly
Load, safe and reliable, easy to operate multispots trial device.
In carrying out fatigue test loading procedure, due to the influence of cycle period load, the support under load distribution beam is easy
The movement that position occurs, causes test effect error occur, so it is necessary to be improved experimental rig.In addition, vehicle etc.
Traveling load has great influence to the mechanical behavior of bridge structure, how to consider simulation of the traveling load in structural test,
It is to carry out structural test to study to improve precision of the traveling loads such as vehicle in the local loading calculating process of bridge structure
Emphasis.It is therefore proposed that a kind of multiaxis graded loading test device, carries out multiaxis (multiple spot) load examination to reinforced concrete structure
It tests, studies its mechanical property under corresponding design load, this uses the optimum design method of reinforced concrete structure, raising
Service life, reduction maintenance cost etc. all have significance.
Utility model content
In order to carry out Multi-axial Loading to testpieces, the test accuracy of Multi-axial Loading is improved, it is more that the utility model provides one kind
Axis hierarchical loading device, specific technical solution are as follows.
A kind of multiaxis hierarchical loading device characterized by comprising
First order load distribution beam, the both ends of lower surface are fixedly installed first order pressing plate, the first order pressure respectively
The lower surface of plate offers the groove perpendicular to the first order load distribution beam extending direction；And
Two second level load distribution beams, the upper surface of the second level load distribution beam are fixedly installed first order branch
Seat, the upper surface of the first order support is provided perpendicular to the protrusion of the second level load distribution beam extending direction；Two
The second level load distribution beam is separately positioned on the lower section of two first order pressing plates, and the protrusion of the first order support
It is contained in the groove of the first order pressing plate, there are gaps between the first order pressing plate and the first order support；
The both ends of the second level load distribution beam lower surface are fixedly installed second level pressing plate, the second level pressure respectively
The lower surface of plate offers the groove perpendicular to the second level load distribution beam extending direction；Each described second level pressing plate
Lower section be provided with second level support, the upper surface of the second level support is provided perpendicular to the second level load distribution beam
The protrusion of extending direction, and the protrusion of the second level support is contained in the groove of the second level pressing plate, the second level
There are gaps between pressing plate and the second level support.
Further, the first order load distribution beam and the second level load distribution beam are I-beam, and described
Level-one pressing plate is fixed on the lower wing plate of the first order load distribution beam by fastener, and the second level pressing plate passes through fastener
It is fixed on the lower wing plate of the second level load distribution beam, the first order support is fixed on the second level lotus by fastener
Carry the upper flange of distribution beam.The load distribution beam of I-beam type is flexural member, and load distribution beam bears the reaction of support
Power and be deformed；Fastener can be conventional using bolt and nut or riveting etc. fastening means, pressing plate, support and I-beam
The through-hole passed through for fastener can be opened up on wing plate, the through-hole of wing plate can guarantee effective anchoring of bolt or rivet, and
And reduce stress and concentrate, the stability of device is improved, has saved cost, and flange plate can bear biggish moment of flexure.
Further, the lower surface of second level support described at least one of which is fixedly connected with the distribution of third level load
Beam, the both ends of the third level load distribution beam lower surface are fixedly installed third level pressing plate respectively, the third level pressing plate
Lower surface offers the groove perpendicular to the third level load distribution beam extending direction；Under each described third level pressing plate
Side is provided with third level support, and the upper surface of the third level support is provided perpendicular to the third level load distribution beam and extends
The protrusion in direction, and the protrusion of the third level support is contained in the groove of the third level pressing plate, the third level pressing plate
There are gaps between the third level support.
Further, the third level load distribution beam is I-beam, and the third level pressing plate is fixed on by fastener
The lower wing plate of the third level load distribution beam, the second level support above the third level load distribution beam pass through fastening
Part is fixed on the upper flange of the third level load distribution beam.
Further, the upper table of the protrusion of the first order support, the second level support and/or the third level support
Face is arc-shaped.The groove of corresponding pressing plate is matched with the protrusion, when testing testpieces, multiaxis hierarchical loading dress
Set under loop cycle load action, groove can constrain the protrusion of support, support and pressing plate can preferable tight fit,
It is mobile or come to nothing to avoid generating support, simultaneously, it is ensured that when upper level load distribution beam occurs bending and deformation, support with it is next
In the reliable delivery of load between the load distribution beam or testpieces of grade.
Further, the protrusion of the first order support, the second level support and/or the third level support is trigone
Column.The groove of corresponding pressing plate is matched with the protrusion, has certain gap between groove and triangular prism protrusion, on guaranteeing
Occuring bending and deformation for level-one load distribution beam is not interfered.
Further, the first order support below the first order load distribution beam both ends, one of them described
The protrusion of level-one support is triangular prism, and the upper surface of the protrusion of another first order support is arc-shaped；The second level
The second level support below load distribution beam both ends, the protrusion of one of them second level support is triangular prism, another
The upper surface of the protrusion of a second level support is arc-shaped；The third below the third level load distribution beam both ends
Grade support, the protrusion of one of them third level support are triangular prism, the upper table of the protrusion of another third level support
Face is arc-shaped.So set, convenient for distinguishing the support at load distribution beam both ends, when saving the assembly of multiaxis hierarchical loading device
Between.
Further, between the first order pressing plate and the first order load distribution beam of part, part described second
Between grade pressing plate and the second level load distribution beam or the partial third level pressing plate and the third level load distribution beam
Between, it is provided with cushion block.By the way that cushion block is arranged, it is ensured that the whole supports contacted with test beam are in same horizontal line；
It needs to be provided with the through-hole passed through for bolt when being bolted pressing plate, in cushion block.
Further, the first order support, the second level support and/or the third level support project through weldering
Connect the upper surface of the upper surface, the second level support that are fixed on corresponding first order support or the upper table of the third level support
Face.The utility model has technical effect that, by the way that different positions are arranged in from support in pressing plate, can divide load
Grade, guarantee test beam (testpieces) can be acted on by load multi-point shooting simultaneously, with simulation test joist support by multiple spot difference load
Mechanical property, while also analog meets the traveling load of design requirement；Support is placed in designed pressing plate groove, it can be with
Avoid fatigue loading test in support move or come to nothing；It ensure that active force and reaction force in the vertical direction can be relatively accurate
Transmitting, improve the precision of device.The loading device simple structure, using effect of the utility model be good, low cost, safety
By force, it is wide to try out range.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the structure front view of the utility model embodiment 1；
Fig. 3 is the decomposition diagram of the first pressing plate and the support with cylindrical protrusions；
Fig. 4 is the decomposition diagram of the second pressing plate and the support with triangular prism protrusion；
Fig. 5 is the structural schematic diagram of the utility model embodiment 2；
Fig. 6 is the structure front view of the utility model embodiment 2；
Fig. 7 is the decomposition diagram of the first pressing plate, cushion block and screw rod.
In figure: 1, actuator, 2, rubber base plate, 3, first order I-steel load distribution beam, the 4, first pressing plate, 5, bolt,
6, with the support of cylindrical protrusions, the 7, second pressing plate, 8, the support with triangular prism protrusion, 9, second level I-steel load point
With beam, 10, screw rod, 11, cushion block, 12, third level I-steel load distribution beam.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Embodiment 1
Referring to Fig. 1-4, a kind of multiaxis hierarchical loading device comprising actuator 1, rubber base plate 2, first order I-steel lotus
Carry distribution beam 3, the first pressing plate 4, bolt 5, the support 6 with cylindrical protrusions, the second pressing plate 7, the branch with triangular prism protrusion
Seat 8, second level I-steel load distribution beam 9.
The actuator 1 is vertically arranged on rubber base plate 2, and the rubber base plate 2 is vertically arranged in first order work
The example of word steel load distribution beam 3(first order load distribution beam) on, the bottom wing of the first order I-steel load distribution beam 3
Board ends use that the first pressing plate 4 and the second pressing plate 7(the first pressing plate 4 here is fixedly installed in bolt 5 and the second pressing plate 7 is the respectively
The example of level-one pressing plate), the support of the support 6 with cylindrical protrusions and the support 8(with triangular prism protrusion here is first
The example of grade support) it is vertically arranged in the lower section of first pressing plate 4 and the second pressing plate 7,4 He of the first pressing plate respectively
Support 6 with cylindrical protrusions is corresponding, has gap between the two, the upper surface setting of the support 6 with cylindrical protrusions
There is cylindrical protrusions (protrusion is also possible to part cylindrical, i.e. upper surface is arc-shaped), the lower surface of the first pressing plate 4 is provided with
For accommodating the groove of cylindrical protrusions, second pressing plate 7 and the support 8 with triangular prism protrusion are corresponded to, between the two
With gap, the upper surface of the support 8 with triangular prism protrusion is provided with triangular prism protrusion, the lower surface setting of the second pressing plate 7
There is the groove for accommodating triangular prism protrusion；Support 6 with cylindrical protrusions, the bolt 5 of support 8 with triangular prism protrusion
Be fixed on the example of the second level second level the I-steel load distribution beam 9(load distribution beam) upper flange, described the
The bottom wing board ends of second level I-steel load distribution beam 9 pass through bolt 5 respectively and are fixedly installed the first pressing plate 4 and the second pressing plate 7
The example of second level pressing plate (the first pressing plate 4 and the second pressing plate 7 here be), support 6 with cylindrical protrusions and with three
The support 8 of prism protrusion is separately positioned on the first pressing plate 4 and the second pressing plate 7 for being fixed on second level I-steel load distribution beam 9
Lower section, the support 6 with cylindrical protrusions of the lower section of second level I-steel load distribution beam 9 and the branch with triangular prism protrusion
The lower surface of seat 8 is contacted with test beam.
Referring to Fig. 1, Fig. 2, the actuator 1 of the present embodiment is one, and rubber base plate 2 is one, first order I-steel load
Distribution beam 3 be one, the first pressing plate 4 be three, bolt 5 be 16, with cylindrical protrusions support 6 be three, second
Pressing plate 7 is three, and the support 8 with triangular prism protrusion is three, and second level I-steel load distribution beam 9 is two.
Load is applied to rubber base plate 2 by actuator 1, and rubber base plate 2 is arranged in first order I-steel load distribution beam 3
The center on wing plate surface, rubber base plate 2 keep horizontal.Rubber base plate 2 generates anti-first order I-steel load distribution beam 3
Active force, the first order I-steel load distribution beam 3 are flexural member, the first order I-steel load distribution beam 3
It will by first pressing plate 4, the second pressing plate 7, the support 6 with cylindrical protrusions and the support 8 with triangular prism protrusion
Active force passes to second level I-steel load distribution beam 9, and the second level I-steel load distribution beam 9 is flexural member,
The second level I-steel load distribution beam 9 by first pressing plate 4, the second pressing plate 7, with the branch of cylindrical protrusions
The active force that the actuator 1 generates is applied to test beam by seat 6 and the support 8 with triangular prism protrusion.With cylinder
The support 6 of protrusion and the continuing surface of the support 8 with triangular prism protrusion are in level.
By adjusting the regulating valve of actuator 1, first order I-steel lotus is applied to control the hydraulic jack of actuator 1
The load in distribution beam 3 is carried, while the power that first order I-steel load distribution beam 3 is applied by actuator 1, is had
End reaction, first order I-steel load distribution beam 3 are generated at the support 6 of cylindrical protrusions, the support 8 with triangular prism protrusion
It deforms under load action, by the support 6 with cylindrical protrusions, the support 8 with triangular prism protrusion, in the second level
The upper flange of I-steel load distribution beam 9 generates reaction force, which occur second level I-steel load distribution beam 9
Deformation, while there is the support 8 of triangular prism protrusion, the support 6 with cylindrical protrusions to generate end reaction, the end reaction is anti-
Act on test beam.Achieve the purpose that realize initial load by I-shaped load distribution beam 9 and be classified, and reaches while exciting
Effect；By the way that the groove of the first pressing plate 4, the second pressing plate 7 is arranged in, to realize that limitation has the support 6 of cylindrical protrusions, tool
There is movement of the support 8 of triangular prism protrusion under Fatigue Load, to reach good test effect.Second pressure
There is gap between plate 7 and support 8 with triangular prism protrusion, have between the first pressing plate 4 and support 6 with cylindrical protrusions
There is gap, which can guarantee that first order I-steel load distribution beam 3, second level I-steel load distribution beam 9 bend
When deformation, the transmitting of load is transmitted by protrusion and groove, is conducive to the capacity value for accurately calculating classification transmitting,
Even if load distribution beam bends, preset load allocation model is nor affected on.
It should be understood that can by adjusting position of the actuator 1 in first order I-steel load distribution beam 3, with
And the position of the support 6 with cylindrical protrusions, the support 8 with triangular prism protrusion in second level I-steel load distribution beam 9
It sets, to control the load of contact with test beam four supports 6 with cylindrical protrusions and the support 8 with triangular prism protrusion
The application position of size and load, so that multiaxis hierarchical loading is realized, to simulate the stress condition of test beam under different condition.
Wherein, first order I-steel load distribution beam 3, second level I-steel load distribution beam 9 can not also use I-shaped
Beam, and use other forms girder construction, the first pressing plate 4, the second pressing plate 7, support 6, support 8 can also by welding, riveting,
Other connection types such as bonding are fixed on first order I-steel load distribution beam 3 or second level I-steel load distribution beam 9.
In above-described embodiment, the first pressing plate 4 and the second pressing plate is respectively set in the both ends of first order I-steel load distribution beam 3
7, the first pressing plate 4 and the second pressing plate 7 is respectively set in the both ends of second level I-steel load distribution beam 9.Because of load distribution beam two
The boundary condition of the support simulation at end is different, cylindrical protrusions support simulation game hinged-support, triangular prism shaped raised seat mould
Quasi- fixed-hinged support, is arranged two different first pressing plates 4 and the second pressing plate 7 is to better discriminate between load distribution beam both ends
Support, save multiaxis hierarchical loading assembly time.Optionally, first order I-steel load distribution beam 3, second level I-shaped lotus
Identical second pressing plate 7 also can be set in the both ends for carrying distribution beam 9, and corresponding to the support 8 with triangular prism protrusion.
Embodiment 2
As shown in Fig. 5, Fig. 6 and Fig. 7, a kind of multiaxis hierarchical loading device comprising actuator 1, rubber base plate 2, first
Grade I-steel load distribution beam 3, bolt 5, the support 6 with cylindrical protrusions, the second pressing plate 7, has trigone at first pressing plate 4
The support 8 of column protrusion, second level I-steel load distribution beam 9, screw rod 10, cushion block 11, third level I-steel load distribution beam 12.
On the basis of embodiment 1, one of them of 9 lower section of second level I-steel load distribution beam is with cylindrical protrusions
6 lower surface of support be also fixedly connected with the example of third level I-steel load distribution beam 12(third level load distribution beam),
The bottom wing board ends of three-level I-steel load distribution beam 12 use respectively bolt 5 be fixedly installed the first pressing plate 4 and the second pressing plate 7(this
In the first pressing plate 4 and the second pressing plate 7 be third level pressing plate example), support 6 with cylindrical protrusions, with triangular prism
The support 8(support 6 here of protrusion, the example that support 8 is third level support) it is separately positioned on corresponding first pressing plate 4, the
The lower section of two pressing plates 7, and this has lower surface and the test of the support 6 of cylindrical protrusions and the support 8 with triangular prism protrusion
Beam contacts vertically.The first pressure of third level I-steel load distribution beam 12 is not connected with below second level I-steel load distribution beam 9
It is additionally provided with cushion block 11 between plate 4, the second pressing plate 7 and second level I-steel load distribution beam 9, screw rod 10 sequentially passes through the first pressure
The lower wing plate of 4/ second pressing plate 7 of plate, cushion block 10 and second level I-steel load distribution beam 9 consolidates 4/ second pressing plate 7 of the first pressing plate
It is fixed, it is in the support 6 with cylindrical protrusions contacted with test beam and the support 8 with triangular prism protrusion that guarantee whole
In same horizontal line.
Referring to Fig. 5, Fig. 6 and Fig. 7, the actuator 1 of the present embodiment is one, and rubber base plate 2 is one, first order I-steel
Load distribution beam 3 is one, and the first pressing plate 4 is four, and bolt 5 is 16, and the support 6 with cylindrical protrusions is four,
Second pressing plate 7 is four, and the support 8 with triangular prism protrusion is four, and second level I-steel load distribution beam 9 is two, spiral shell
Bar 10 is six, and cushion block 11 is six, and third level I-steel load distribution beam 12 is one.
Referring to Fig. 5, power is applied to rubber base plate 2 by actuator 1, and rubber base plate 2 is arranged in I-steel load distribution beam
Wing plate surface, rubber base plate 2 keep horizontal.Rubber base plate 2 generates reaction force, institute to first order I-steel load distribution beam 3
The first order I-steel load distribution beam 3 stated is flexural member, and the first order I-steel load distribution beam 3 passes through described
First pressing plate 4, the second pressing plate 7, the support 6 with cylindrical protrusions and the support 8 with triangular prism protrusion transmit active force
To second level I-steel load distribution beam 9, the second level I-steel load distribution beam 9 be flexural member, the second of the right
Grade I-steel load distribution beam 9 is by cushion block 11, the first pressing plate 4, the second pressing plate 7, the support 6 with cylindrical protrusions and has
The active force that the actuator 1 generates is applied to test beam by the support 8 of triangular prism protrusion；The second level I-steel lotus on the left side
The one end for carrying distribution beam 9 is generated the actuator 1 by cushion block 11, the second pressing plate 7 and the support 8 with triangular prism protrusion
Active force be applied to test beam；The other end of the second level I-steel load distribution beam 9 on the left side is by the first pressing plate 4 and has
The support 6 of cylindrical protrusions transfers the force to third level I-steel load distribution beam 12, the distribution of third level I-steel load
Beam 12 is further classified load, and the both ends of third level I-steel load distribution beam 12 pass through the first pressing plate 4, the second pressing plate 7, tool
There are the support 6 of cylindrical protrusions and the support 8 with triangular prism protrusion that the active force that the actuator 1 generates is applied to examination
Test beam.
By adjusting the regulating valve of actuator 1, first order I-steel lotus is applied to control the hydraulic jack of actuator 1
The load in distribution beam 3 is carried, while the power that first order I-steel load distribution beam 3 is applied by actuator 1, is had
End reaction, first order I-steel load distribution beam 3 are generated at the support 6 of cylindrical protrusions, the support 8 with triangular prism protrusion
It deforms under load action, by the support 6 with cylindrical protrusions, the support 8 with triangular prism protrusion, in the second level
The upper flange of I-steel load distribution beam 9 generates reaction force, which occur second level I-steel load distribution beam 9
Deformation, second level I-steel load distribution beam 9 by support 6 with cylindrical protrusions, with 8 and of support of triangular prism protrusion
Third level I-steel load distribution beam 12 delivers load to test beam.Pass through second level I-steel load distribution beam 9, the third level
I-steel load distribution beam 12 achievees the purpose that realize classification to initial load effective simulation, it can be achieved that standard truck loading.
By current specifications: the standard truck loading that I grades of highway is 550kN, vehicular load include front axle load 30kN, middle axle load 2 ×
120kN and rear axle 2 × 140kN of load, axis have 2, be denoted as respectively in 1 and in 2, rear axle also has 2, be denoted as after 1 and rear 2,
Wherein front axle and in 1 at a distance of 3m, in 1 and in 2 at a distance of 1.4m, in 2 and rear 1 at a distance of 7m, rear 1 and rear 2 at a distance of 1.4m.Its axis heavy burden
Carry " JTG D60-2015 highway bridge and culvert designs general specification " visible with axle size layout drawing Fig. 4 .3.1-2 of page 27.
The axle arrangement of existing overloaded vehicle is consistent with standard vehicle, only changes wheelbase and axis weight, the present apparatus
It can be by adjusting position of the actuator 1 in first order I-steel load distribution beam 3, and the support with cylindrical protrusions
6, the support 8 with triangular prism protrusion is in 9/ third level I-steel load distribution beam 12 of second level I-steel load distribution beam
It is simulated position.
The embodiments of the present invention are described above in conjunction with attached drawing, in the absence of conflict, this is practical new
The feature in embodiment and embodiment in type can be combined with each other.The utility model is not limited to above-mentioned specific embodiment party
Formula, the above mentioned embodiment is only schematical, rather than limitation, those skilled in the art are in this reality
With under novel enlightenment, when not departing from the utility model aims and scope of the claimed protection, can also make very
Multi-form, these are belonged within the protection scope of the utility model.
Claims (9)
1. a kind of multiaxis hierarchical loading device characterized by comprising
First order load distribution beam, the both ends of lower surface are fixedly installed first order pressing plate respectively, the first order pressing plate
Lower surface offers the groove perpendicular to the first order load distribution beam extending direction；And
Two second level load distribution beams, the upper surface of the second level load distribution beam are fixedly installed first order support, institute
The upper surface for stating first order support is provided perpendicular to the protrusion of the second level load distribution beam extending direction；Two described
Second level load distribution beam is separately positioned on the lower section of two first order pressing plates, and the protrusion of the first order support is contained in
In the groove of the first order pressing plate, there are gaps between the first order pressing plate and the first order support；
The both ends of the second level load distribution beam lower surface are fixedly installed second level pressing plate respectively, the second level pressing plate
Lower surface offers the groove perpendicular to the second level load distribution beam extending direction；Under each described second level pressing plate
Side is provided with second level support, and the upper surface of the second level support is provided perpendicular to the second level load distribution beam and extends
The protrusion in direction, and the protrusion of the second level support is contained in the groove of the second level pressing plate, the second level pressing plate
There are gaps between the second level support.
2. a kind of multiaxis hierarchical loading device according to claim 1, which is characterized in that the first order load distribution beam
It is I-beam with the second level load distribution beam, the first order pressing plate is fixed on the first order load by fastener
The lower wing plate of distribution beam, the second level pressing plate are fixed on the lower wing plate of the second level load distribution beam, institute by fastener
State the upper flange that first order support is fixed on the second level load distribution beam by fastener.
3. a kind of multiaxis hierarchical loading device according to claim 1, which is characterized in that second described at least one of which
The lower surface of grade support is fixedly connected with third level load distribution beam, the both ends difference of the third level load distribution beam lower surface
It is fixedly installed third level pressing plate, the lower surface of the third level pressing plate is offered prolongs perpendicular to the third level load distribution beam
Stretch the groove in direction；Third level support, the upper table of the third level support are provided with below each described third level pressing plate
Face is provided perpendicular to the protrusion of the third level load distribution beam extending direction, and the protrusion of the third level support is contained in
In the groove of the third level pressing plate, there are gaps between the third level pressing plate and the third level support.
4. a kind of multiaxis hierarchical loading device according to claim 3, which is characterized in that the third level load distribution beam
For I-beam, the third level pressing plate is fixed on the lower wing plate of the third level load distribution beam, the third by fastener
The second level support above grade load distribution beam is fixed on the upper flange of the third level load distribution beam by fastener.
5. a kind of multiaxis hierarchical loading device according to claim 1 or 3, which is characterized in that the first order support, institute
It is arc-shaped for stating the upper surface of the protrusion of second level support and/or the third level support.
6. a kind of multiaxis hierarchical loading device according to claim 1 or 3, which is characterized in that the first order support, institute
The protrusion for stating second level support and/or the third level support is triangular prism.
7. a kind of multiaxis hierarchical loading device according to claim 1 or 3, which is characterized in that the first order load point
With the first order support below beam both ends, the protrusion of one of them first order support is triangular prism, described in another
The upper surface of the protrusion of first order support is arc-shaped；The second level branch below the second level load distribution beam both ends
Seat, the protrusion of one of them second level support are triangular prism, and the upper surface of the protrusion of another second level support is
It is arc-shaped；The third level support below the third level load distribution beam both ends, one of them third level support
Protrusion is triangular prism, and the upper surface of the protrusion of another third level support is arc-shaped.
8. a kind of multiaxis hierarchical loading device according to claim 3, which is characterized in that the first order pressing plate of part
Between the first order load distribution beam, between the part second level pressing plate and the second level load distribution beam or part
The third level pressing plate and the third level load distribution beam between, be provided with cushion block.
9. a kind of multiaxis hierarchical loading device according to claim 3, which is characterized in that the first order support, described
Second level support and/or the third level support project through the upper surface for being weldingly fixed on corresponding first order support, institute
State the upper surface of second level support or the upper surface of the third level support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995879.8U CN209148445U (en) | 2018-11-30 | 2018-11-30 | A kind of multiaxis hierarchical loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995879.8U CN209148445U (en) | 2018-11-30 | 2018-11-30 | A kind of multiaxis hierarchical loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148445U true CN209148445U (en) | 2019-07-23 |
Family
ID=67288409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821995879.8U Expired - Fee Related CN209148445U (en) | 2018-11-30 | 2018-11-30 | A kind of multiaxis hierarchical loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470461A (en) * | 2019-08-22 | 2019-11-19 | 哈尔滨哈玻拓普复合材料有限公司 | Distribution beam loading system and installation method for metal frames radome test |
| CN110954409A (en) * | 2019-12-06 | 2020-04-03 | 兰州理工大学 | Loading device for simulating multipoint horizontal dynamic load and test method thereof |
| CN113029625A (en) * | 2021-03-11 | 2021-06-25 | 苏交科集团股份有限公司 | Bridge load test axle load distribution device and method thereof |
-
2018
- 2018-11-30 CN CN201821995879.8U patent/CN209148445U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470461A (en) * | 2019-08-22 | 2019-11-19 | 哈尔滨哈玻拓普复合材料有限公司 | Distribution beam loading system and installation method for metal frames radome test |
| CN110470461B (en) * | 2019-08-22 | 2021-02-26 | 哈尔滨哈玻拓普复合材料有限公司 | Distribution beam loading system for metal truss antenna housing test and installation method |
| CN110954409A (en) * | 2019-12-06 | 2020-04-03 | 兰州理工大学 | Loading device for simulating multipoint horizontal dynamic load and test method thereof |
| CN113029625A (en) * | 2021-03-11 | 2021-06-25 | 苏交科集团股份有限公司 | Bridge load test axle load distribution device and method thereof |
| CN113029625B (en) * | 2021-03-11 | 2023-11-21 | 苏交科集团股份有限公司 | Bridge load test axle load distribution device and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209148445U (en) | A kind of multiaxis hierarchical loading device | |
| CN101216376B (en) | Four-column type rail vehicle bogie rigidity detection system | |
| CN101561339B (en) | System for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies | |
| CN103175698B (en) | Test method and device for railway vehicle anti-wind-overturning capability | |
| Mulcahy | Bridge response with tractor‐trailer vehicle loading | |
| CN101105428A (en) | Armoured concrete test teaching integrated loading device | |
| CN104215466A (en) | Train body chassis fatigue strength test bed and testing method | |
| CN205679468U (en) | A kind of anchor rod drawing test hydraulic support device | |
| CN202164552U (en) | Prepressing counter-force frame device of model 0 block support frame | |
| CN202420880U (en) | Strong wind overturning resistance capacity testing device for railway vehicle | |
| CN201145641Y (en) | System for detecting four-pillar type rail vehicle steering frame rigidity | |
| CN204085910U (en) | A kind of train body underframe testing table for fatigue strength | |
| CN105158092B (en) | Floorings fatigue life test device and test method | |
| CN109682615A (en) | A kind of suspension type single track car body strength test device | |
| CN207215439U (en) | For vehicle suspension leaf spring three-dimensional Dynamic performance examination equipment | |
| CN102889984A (en) | In-situ static-loading safety performance detection method of waveform beam guardrail | |
| CN205607789U (en) | Quadrature opposite sex decking U -shaped rib and panel splice fatigue test device | |
| CN212780327U (en) | Tool device for fatigue test of weld joint of U rib and diaphragm plate of steel bridge deck | |
| CN103926085B (en) | A kind of H type crossbeam frame flex reverses mechanic property test method and device | |
| Lu et al. | Experimental study and numerical analysis of a composite bridge structure | |
| CN102539225A (en) | Self-balancing testing device and testing method for testing bending performance of displacement and force double control column | |
| CN105738205A (en) | Test device for crane girder | |
| CN112113788A (en) | Multi-functional bridge expansion joint testing machine of multi freedom | |
| CN103592140B (en) | Highs-speed motor train unit bogie parameter test board framework positioning device | |
| He et al. | Evaluation of bearing capacity of reinforced concrete box ribbed arch bridge based on static load test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20191130 |