CN209841328U - Support device for drop hammer impact beam test - Google Patents
Support device for drop hammer impact beam test Download PDFInfo
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- CN209841328U CN209841328U CN201920849974.5U CN201920849974U CN209841328U CN 209841328 U CN209841328 U CN 209841328U CN 201920849974 U CN201920849974 U CN 201920849974U CN 209841328 U CN209841328 U CN 209841328U
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- support
- roof
- clamp plate
- impact beam
- plate
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Abstract
A support device for a drop hammer impact beam test. The influence of the support on the span of the test beam, the deflection curve of the test impact beam and the damage process is reduced. It includes the support, establishes the support roof on the support, both ends about the support roof are established to the support symmetry, both ends symmetry is equipped with the fixing device who fixes the roof beam on the support roof about the support roof, fixing device includes backing plate, montant, clamp plate, the backing plate is established on the support roof, the clamp plate is established in the backing plate top, the montant runs through backing plate and clamp plate to can dismantle backing plate, clamp plate and connect on the support roof, be equipped with on the clamp plate and lock the locking device of clamp plate locking on the montant, fixing device can adjust relative position on the support roof. The utility model has the advantages that when the support is guaranteeing the fixed effect to the roof beam, do not reduce the experimental precision of hammer impact beam again.
Description
Technical Field
The utility model relates to a reinforced concrete member test technical field, in particular to experimental support device of hammer impact beam falls.
Background
The dynamic load test of the reinforced concrete member is a basic means for researching the stress characteristics and material performance of the concrete member, and is widely applied to the field of concrete. For the concrete beam under the action of concentrated load, the impact load has obvious influence on the stress performance of the structure, and the destructive performance and the destructive state of the member are directly determined. Meanwhile, the impact test generally has short time, so that the test flexibility and the damage process are difficult to test. Therefore, in component test, the vibration of the impact test beam support, the change of span and the test of the damage process are often important technical problems. In the same test working condition, how to reduce the influence of the support on the ground, and how to accurately change the span of the test beam, test the deflection curve and the damage process of the impact beam have important influence on the test precision and the test efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem in the background art, the utility model provides a drop hammer impact beam test's support device.
The utility model provides an experimental support device of impact beam that drops hammer, includes the support, establishes the support roof on the support, both ends about the support roof are established to the support symmetry, both ends symmetry is equipped with the fixing device who fixes the roof beam on the support roof about the support roof, fixing device includes backing plate, montant, clamp plate, the backing plate is established on the support roof, the clamp plate is established in the backing plate top, the montant runs through backing plate and clamp plate to can dismantle backing plate, clamp plate and connect on the support roof, be equipped with on the clamp plate and lock the locking device of clamp plate locking on the montant, fixing device can adjust relative position on the support roof.
The adjustable span holes of the plurality of adaptive vertical rods are formed in the support top plate and are evenly distributed in the length direction of the support top plate.
The locking device comprises a locking handle, the locking handle is arranged on the front side of the pressing plate, a threaded hole matched with the locking handle is formed in the front side of the pressing plate, and the threaded hole penetrates through the pressing plate and is communicated with the vertical rod.
The backing plate is fixedly connected with a hinged support which can rotate in the length direction of the support top plate.
The cross section of the pressing plate is in an isosceles triangle shape, and the included angle of the two waists faces downwards.
The clamp plate front side is equipped with the locking handle, the clamp plate front side is equipped with the screw hole with the locking handle adaptation, the screw hole runs through the clamp plate and communicates with the montant.
The locking handle is Z-shaped, and a ball is arranged at the tail end of the locking handle.
The laser range finder is arranged below the support top plate, a range finding hole is formed in the position, corresponding to the laser range finder, of the support top plate, and the range finding hole is formed in the center of the support top plate.
And a damping rubber pad is arranged at the bottom of the support.
The support and the damping rubber pad are connected with the ground through anchor rods.
The utility model has the advantages that: this concrete sample impact load test device uses more conveniently, also need not complicated operation, in the loading process, the montant, clamp plate and twist grip are connected with the support roof as partial whole, and support, vibration-damping rubber pad are connected with the earth anchor as partial whole to maintain concrete sample stability and security out of the plane, avoid the side direction to topple, through whole test beam amount of deflection curve and the destruction process of high-speed camera and laser displacement sensor, improve experimental accuracy nature.
Drawings
Fig. 1 is a schematic structural diagram of a support device for a drop hammer impact beam test according to an embodiment of the present invention.
Fig. 2 is a front view of the support device for the drop hammer impact beam test according to the embodiment of the present invention.
Fig. 3 is a left side view of the support device for the drop hammer impact beam test according to the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a fixing device according to an embodiment of the present invention.
The attached drawings are as follows: 1-support, 2-support top plate, 3-backing plate, 4-vertical rod, 5-pressing plate, 6-span adjusting hole, 7-hinged support, 8-locking handle, 9-ranging hole and 10-shock-absorbing rubber pad.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
The utility model provides an experimental support device of impact beam that drops hammer, includes support 1, establishes support roof 2 on support 1, both ends about support roof 2 are established to support 1 symmetry, 1 bottom of support is equipped with rubber-damping pad 10, support 1 passes through the stock with rubber-damping pad 10 and is connected with ground, makes and maintains the stability outside the concrete test piece plane, avoids the side direction to topple, makes experimental safer and more reliable who goes on.
The supporting seat comprises a supporting seat top plate 2, wherein fixing devices for fixing a beam on the supporting seat top plate 2 are symmetrically arranged at the left end and the right end of the supporting seat top plate 2, each fixing device comprises a base plate 3, a vertical rod 4 and a pressing plate 5, the base plates 3 are arranged on the supporting seat top plate 2, the pressing plates 5 are arranged above the base plates 3, the vertical rods 4 penetrate through the base plates 3 and the pressing plates 5, the base plates 3 and the pressing plates 5 are detachably connected onto the supporting seat top plate 2, a locking handle 8 is arranged at the front side of each pressing plate 5, threaded holes matched with the locking handle 8 are formed in the front side of each pressing plate 5, the threaded holes penetrate through the pressing plates 5 and are communicated with the vertical rods 4, a plurality of adjusting span holes 6 matched with the vertical rods 5 are formed in the supporting seat top plate 2, the adjusting span holes 6 are uniformly distributed in the length direction of the supporting seat top plate 2, the beam is prevented from, the roof beam passes through clamp plate 5 to be fixed on backing plate 3, and locking handle 8 comes restriction clamp plate 5's displacement to lock on montant 4 through the screw hole contact with montant 4 intercommunication established on clamp plate 5, and montant 4 assists clamp plate 5 to prevent that the roof beam from dropping in the past back both sides, and can be according to the experimental requirement, and the hookup location of adjustment montant 4 and adjustment span hole 6 makes its span requirement that accords with the experiment, threaded connection between montant 4 and the adjustment span hole 6.
Fixedly connected with hinged-support 7 on the backing plate 3, hinged-support 7 can rotate on 2 length directions of support roof, and the roof beam of placing horizontally can produce the deformation of certain degree through the impact of falling the hammer in the test, hinged-support 7 can rotate along with roof beam bending deformation degree, reduces the influence of backing plate 3 to experimental precision.
The cross section of the pressing plate 5 is in an isosceles triangle shape, the included angle of the two waists is downward, and the influence of the pressing plate 5 on the test precision when the beam is bent in the drop hammer impact test is reduced by reducing the contact area of the pressing plate 5 and the beam.
The locking handle 8 is Z-shaped, the ball is arranged at the tail end, the pressing plate 5 can be locked more easily, and the ball at the tail end can prevent the locking handle 8 from being released in the locking process.
The laser range finder is arranged below the support top plate 2, the distance measuring hole 9 is formed in the position, corresponding to the laser range finder, of the support top plate 2, the distance measuring hole 9 is formed in the center of the support top plate 2, the deflection time-course curve of the test beam can be tested in the whole process, the damage process of the beam in the impact test process can be further shot by placing a high-speed camera on the side edge of the beam, and the test accuracy is improved.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.
Claims (9)
1. The utility model provides a experimental support device of impact beam that drops hammer, includes support (1), establishes support roof (2) on support (1), both ends, its characterized in that about support roof (2) are established to support (1) symmetry: support roof (2) left and right sides both ends symmetry is equipped with the fixing device who fixes the roof beam on support roof (2), fixing device includes backing plate (3), montant (4), clamp plate (5), establish on support roof (2) backing plate (3), establish in backing plate (3) top clamp plate (5), montant (4) run through backing plate (3) and clamp plate (5) to can dismantle backing plate (3), clamp plate (5) and connect on support roof (2), be equipped with on clamp plate (5) and lock the locking device of clamp plate locking on montant (4), fixing device can adjust relative position on support roof (2).
2. The pedestal device for drop hammer impact beam test according to claim 1, wherein: be equipped with adjustment span hole (6) of a plurality of adaptation montants (4) on support roof (2), establish in support roof (2) length direction and evenly distributed in adjustment span hole (6).
3. The pedestal device for drop hammer impact beam test according to claim 1, wherein: locking device includes locking handle (8), establish in clamp plate (5) front side locking handle (8), clamp plate (5) front side is equipped with the screw hole with locking handle (8) adaptation, the screw hole runs through clamp plate (5) and communicates with montant (4).
4. The pedestal device for drop hammer impact beam test according to claim 1, wherein: the base plate (3) is fixedly connected with a hinged support (7), and the hinged support (7) can rotate in the length direction of the support top plate (2).
5. The pedestal device for drop hammer impact beam test according to claim 1, wherein: the cross section of the pressing plate (5) is an isosceles triangle, and the included angle of the two waists faces downwards.
6. The holder device for the drop hammer impact beam test according to claim 3, wherein: the locking handle (8) is Z-shaped, and a ball is arranged at the tail end.
7. The pedestal device for drop hammer impact beam test according to claim 1, wherein: support roof (2) below is equipped with laser range finder, support roof (2) correspond laser range finder department and are equipped with range finding hole (9), range finding hole (9) are established and are put at support roof (2) central point.
8. The pedestal device for drop hammer impact beam test according to claim 1, wherein: and a damping rubber pad (10) is arranged at the bottom of the support (1).
9. The pedestal device for drop hammer impact beam test according to claim 8, wherein: the support (1) and the damping rubber pad (10) are connected with the ground through anchor rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849974.5U CN209841328U (en) | 2019-06-06 | 2019-06-06 | Support device for drop hammer impact beam test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849974.5U CN209841328U (en) | 2019-06-06 | 2019-06-06 | Support device for drop hammer impact beam test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209841328U true CN209841328U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920849974.5U Active CN209841328U (en) | 2019-06-06 | 2019-06-06 | Support device for drop hammer impact beam test |
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| Country | Link |
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| CN (1) | CN209841328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184495A (en) * | 2021-12-09 | 2022-03-15 | 中国船舶科学研究中心 | Ship equivalent beam sensitivity coefficient calibration fixing device and measuring method |
-
2019
- 2019-06-06 CN CN201920849974.5U patent/CN209841328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184495A (en) * | 2021-12-09 | 2022-03-15 | 中国船舶科学研究中心 | Ship equivalent beam sensitivity coefficient calibration fixing device and measuring method |
| CN114184495B (en) * | 2021-12-09 | 2024-01-26 | 中国船舶科学研究中心 | Ship equivalent Liang Lingmin degree coefficient calibration fixing device and determination method |
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