CN206710195U - A kind of fatigue loading device for prestressed concrete beam four-point bending - Google Patents
A kind of fatigue loading device for prestressed concrete beam four-point bending Download PDFInfo
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- CN206710195U CN206710195U CN201720323890.9U CN201720323890U CN206710195U CN 206710195 U CN206710195 U CN 206710195U CN 201720323890 U CN201720323890 U CN 201720323890U CN 206710195 U CN206710195 U CN 206710195U
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- loading
- cushion block
- prestressed concrete
- point bending
- distribution
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Abstract
The utility model discloses a kind of fatigue loading device for prestressed concrete beam four-point bending, act on beam to be measured, including being arranged on the distribution beam of beam upper surface to be measured and being arranged on moving head at the top of support frame, the distribution beam upper surface is additionally provided with square plate, the square plate upper surface is provided with hangers, the action ear being used cooperatively with hangers is provided with below the moving head, so, you can realize that pressure that moving head applies passes sequentially through square plate and distribution beam is acted on beam to be measured.The utility model has the advantage of：It can avoid the skew of loading position during fatigue test from causing experiment to be interrupted or failure, at the same the bolt hole being evenly arranged in distribution beam can conveniently loading cushion block, the installation at loading equipemtn diverse location, realize different load modes.
Description
Technical field
Technical field of civil engineering is the utility model is related to, is used for prestressed concrete beam four-point bending in particular to one kind
Fatigue loading device.
Background technology
Prestressed concrete beam is widely used in the engineering structures such as bridge, because this kind of engineering structure is in the normal use time limit
It is interior by fatigue load repeated action, cause structure to produce accumulated damage, the safe handling of structure influenceed, therefore, generally use mould
The mode of type experiment has carried out experimental study to deformation of the prestressed concrete beam under Fatigue Load.Fatigue test process
In, if simple under distribution beam in the way of static test place loading cushion block, loading equipemtn is placed in distribution beam and is carried out
Experiment, then easily cause deviation, abjection or the skew of distribution beam for loading cushion block.
At present, can not be close between loading cushion block, distribution beam and loading equipemtn in the fatigue test of prestressed concrete beam
With reference to meeting during experiment is because loading cushion block or distribution beam deviate and cause experiment interruption or failure.And its load mode
It is single, a variety of load modes such as the adjustable three branches loading of loading Position or bias, center loaded can not be realized.
Utility model content
The purpose of this utility model seeks to provide a kind of fatigue loading dress for prestressed concrete beam four-point bending
Put, its is simple in construction, convenient use, available in the fatigue test of prestressed concrete beam, realize loading cushion block, distribution beam with
Combined closely between loading equipemtn, will not deviate during guarantee test because of loading cushion block or distribution beam and cause experiment to be interrupted
Or failure.On the other hand, it can realize a variety of load modes, as the loading of loading Position adjustable three branch or it is eccentric, in
The modes such as heart loading.
To achieve the above object, a kind of fatigue for prestressed concrete beam four-point bending designed by the utility model
Loading device, act on beam to be measured, including be arranged on the distribution beam of beam upper surface to be measured and be arranged at the top of support frame and act
Head, the distribution beam upper surface are additionally provided with square plate, and the square plate upper surface is provided with hangers, and the moving head lower section is provided with and hangers
The action ear being used cooperatively, so, you can realize pressure that moving head applies pass sequentially through square plate and distribution beam act on it is to be measured
Liang Shang.
Further, the distribution beam lower surface is provided with loading cushion block, and the distribution beam is by loading cushion block and beam to be measured
Abut.
Further, screw, the distribution beam and square plate, distribution are provided with the distribution beam, square plate and loading cushion block
Beam is bolted to connection with loading cushion block.
Further, the bottom at the beam both ends to be measured is equipped with supporting table.
Further, the hangers passes through hinge with action ear.
Further, the support block provided with gauge distribution in the distribution beam.So, while mitigating distribution beam deadweight,
It can also be easy to tighten bolt.
Further, the square plate and loading cushion block are fixed with the support block in distribution beam.
One of preferably, the loading cushion block is provided with two, and two loading cushion blocks are separately positioned on fixation
At the bolt for loading cushion block.
Preferably two, the loading cushion block is full wafer, and the following table of distribution beam is completely covered in the loading cushion block
Face.
The utility model has the advantage of：It can avoid the skew of loading position during fatigue test from causing in experiment
Disconnected or failure, while the bolt hole being evenly arranged in distribution beam can conveniently loading cushion block, the peace at loading equipemtn diverse location
Dress, realizes different load modes.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 left view schematic diagram；
Fig. 3 is Fig. 1 schematic top plan view.
In figure：Beam 1 to be measured, distribution beam 2 are (wherein：Support block 2.1), support frame 3, moving head 4 (wherein：Act ear 4.1),
Square plate 5 is (wherein：Hangers 5.1), loading cushion block 6, bolt 7, supporting table 8, bearing pin 9.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
A kind of fatigue loading device for prestressed concrete beam four-point bending as shown in Figures 1 to 3, is acted on to be measured
On beam 1, including it is arranged on the distribution beam 2 of the upper surface of beam 1 to be measured and is arranged on the top moving head 4 of support frame 3, the distribution beam 2
Lower surface is provided with loading cushion block 6, and the distribution beam 2 is abutted by loading cushion block 6 with beam 1 to be measured.The upper surface of distribution beam 2 is also
Provided with square plate 5, the upper surface of square plate 5 is provided with hangers 5.1, and spiral shell is provided with the distribution beam 2, square plate 5 and loading cushion block 6
Hole, the distribution beam 2 are fixedly connected with square plate 5, distribution beam 2 with loading cushion block 6 by bolt 7.The lower section of moving head 4 is set
There is the action ear 4.1 being used cooperatively with hangers 5.1, the hangers 5.1 is hinged with action ear 4.1 by bearing pin 9.So, you can
Realize that the pressure that moving head 4 applies passes sequentially through square plate 5 and distribution beam 2 is acted on beam 1 to be measured.The both ends of beam to be measured 1
Bottom is equipped with supporting table 8.Support block 2.1 provided with gauge distribution in the distribution beam 2.The square plate 5 and loading cushion block 6 are equal
Fixed with the support block 2.1 in distribution beam 2.
Loading cushion block 6 is designed with two kinds of structure types, referring specifically to following examples 1 and embodiment 2：
Embodiment 1：The loading cushion block 6 is provided with two, and two loading cushion blocks 6 are separately positioned on fixed loading cushion block
At 6 bolt 7.
Embodiment 2：The loading cushion block 6 is full wafer, and the lower surface of distribution beam 2 is completely covered in the loading cushion block 6.
Finally it is pointed out that above example is only the more representational example of the utility model.Obviously, this practicality is new
Type is not limited to above-described embodiment, can also there is many deformations.Every technical spirit according to the present invention is done to above example
Any simple modifications, equivalents, and modifications, be considered as belonging to the scope of protection of the utility model.
Claims (9)
1. a kind of fatigue loading device for prestressed concrete beam four-point bending, act on beam to be measured (1), its feature exists
In：Including being arranged on the distribution beam (2) of beam to be measured (1) upper surface and being arranged on moving head (4) at the top of support frame (3), described point
Square plate (5) is additionally provided with beam (2) upper surface, square plate (5) upper surface is provided with hangers (5.1), set below the moving head (4)
There is the action ear (4.1) being used cooperatively with hangers (5.1), so, you can realize the pressure side of passing sequentially through that moving head (4) applies
Plate (5) and distribution beam (2) are acted on beam to be measured (1).
2. a kind of fatigue loading device for prestressed concrete beam four-point bending according to claim 1, its feature
It is：Distribution beam (2) lower surface is provided with loading cushion block (6), and the distribution beam (2) is by loading cushion block (6) and beam to be measured
(1) abut.
3. a kind of fatigue loading device for prestressed concrete beam four-point bending according to claim 2, its feature
It is：Screw is provided with the distribution beam (2), square plate (5) and loading cushion block (6), the distribution beam (2) and square plate (5), is divided
It is fixedly connected with beam (2) with loading cushion block (6) by bolt (7).
4. a kind of fatigue for prestressed concrete beam four-point bending according to any one in claims 1 to 3 adds
Carry and put, it is characterised in that：The bottom at beam to be measured (1) both ends is equipped with supporting table (8).
5. a kind of fatigue loading device for prestressed concrete beam four-point bending according to claim 4, its feature
It is：The hangers (5.1) is be hinged by bearing pin (9) with action ear (4.1).
6. according to a kind of fatigue loading device for prestressed concrete beam four-point bending described in claim 5, it is special
Sign is：Support block (2.1) provided with gauge distribution in the distribution beam (2).
7. according to a kind of fatigue loading device for prestressed concrete beam four-point bending described in claim 6, it is special
Sign is：The square plate (5) and loading cushion block (6) are fixed with the support block (2.1) in distribution beam (2).
8. a kind of fatigue loading device for prestressed concrete beam four-point bending according to claim 7, its feature
It is：The loading cushion block (6) is provided with two, and two loading cushion blocks (6) are separately positioned on the spiral shell of fixed loading cushion block (6)
Bolt (7) place.
9. a kind of fatigue loading device for prestressed concrete beam four-point bending according to claim 7, its feature
It is：The loading cushion block (6) is full wafer, and the lower surface of distribution beam (2) is completely covered in the loading cushion block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323890.9U CN206710195U (en) | 2017-03-29 | 2017-03-29 | A kind of fatigue loading device for prestressed concrete beam four-point bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323890.9U CN206710195U (en) | 2017-03-29 | 2017-03-29 | A kind of fatigue loading device for prestressed concrete beam four-point bending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710195U true CN206710195U (en) | 2017-12-05 |
Family
ID=60468221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720323890.9U Expired - Fee Related CN206710195U (en) | 2017-03-29 | 2017-03-29 | A kind of fatigue loading device for prestressed concrete beam four-point bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206710195U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375503A (en) * | 2018-03-02 | 2018-08-07 | 商丘工学院 | A kind of mechanical strength testing device |
| CN108627390A (en) * | 2018-03-23 | 2018-10-09 | 武汉理工大学 | A kind of multifunctional adjustable pressure fatigue machine connector device |
| CN110470460A (en) * | 2019-08-12 | 2019-11-19 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of four_point bending beam and its experimental rig, test method |
| CN113092290A (en) * | 2021-03-26 | 2021-07-09 | 太原理工大学 | External prestress reinforced concrete beam fatigue test device and method |
-
2017
- 2017-03-29 CN CN201720323890.9U patent/CN206710195U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375503A (en) * | 2018-03-02 | 2018-08-07 | 商丘工学院 | A kind of mechanical strength testing device |
| CN108627390A (en) * | 2018-03-23 | 2018-10-09 | 武汉理工大学 | A kind of multifunctional adjustable pressure fatigue machine connector device |
| CN110470460A (en) * | 2019-08-12 | 2019-11-19 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of four_point bending beam and its experimental rig, test method |
| CN113092290A (en) * | 2021-03-26 | 2021-07-09 | 太原理工大学 | External prestress reinforced concrete beam fatigue test device and method |
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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: 20171205 Termination date: 20180329 |