CN109356023A - The anti-fall beam support of damping - Google Patents
The anti-fall beam support of damping Download PDFInfo
- Publication number
- CN109356023A CN109356023A CN201811321921.2A CN201811321921A CN109356023A CN 109356023 A CN109356023 A CN 109356023A CN 201811321921 A CN201811321921 A CN 201811321921A CN 109356023 A CN109356023 A CN 109356023A
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- China
- Prior art keywords
- support
- rod iron
- damping
- fall
- support body
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of anti-fall beam supports of damping, it is used to support beam body, the bottom of beam body is equipped with beam body preformed hole, the anti-fall beam support of damping includes the bottom plate of support body and strap bolt hole, support body is formed by stacking by rubber layer and steel plate, and the central coaxial heart of support body is provided with rod iron, and the bottom of the rod iron and bottom plate are integrally formed, and there are a fixed gaps between rod iron and support body, for filling elastic component.The present invention by rod iron be inserted into beam body preformed hole make support body to beam body play the role of support it is anti-fall, cushioning effect is provided by the elastic component being arranged between rod iron and support body, the normal use requirement under non-geological process can either be met, and can satisfy the damping under earthquake and tamper-proof requirement.
Description
Technical field
The invention belongs to bridge technology field, in particular to a kind of anti-fall beam support of damping.
Background technique
It is not difficult to find that bridge superstructure falls the first cause that beam is bridge collapse in all previous earthquake, people for
Girder falling problem is increasingly paid attention to, and more and more bridge earthquakes make domestic and international more and more experts and scholars put into this side
The research in face achieves many achievements, and has obtained many applications in practical projects.But in the design side of limiting device
There are many more problems for method, the design of coupling beam device and functionization, the research and development of buffer unit etc..
Currently, the design and construction of anti-fall girder apparatus is relatively complicated in Practical Project, such as traditional design needs to be arranged
Block prevents from laterally falling beam, drag-line is set prevent it is longitudinal fall beam, because lacking Comprehensive harmonies, so girder falling effect is not
It is fairly obvious.
In seismic process, existing anti-fall girder apparatus has played certain effect, but the self-inflicted injury of its device is serious, beam
Body collides, and causes to support and substructure badly damaged.The main reason is that part anti-fall girder apparatus does not have damping
Effect partially has the anti-fall girder apparatus of energy consumption function not stable in performance, and damping effect is unobvious.
Summary of the invention
The technical issues of for girder falling structural instability existing in the prior art, it is anti-fall that the present invention provides a kind of damping
Beam support plays the anti-fall beam action of damping, while guaranteeing that biggish destruction does not occur for support body.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of anti-fall beam support of damping, the bottom plate including support body and strap bolt hole, the support body is by rubber layer
Be formed by stacking with steel plate, the central coaxial heart of the support body is provided with rod iron, the bottom of the rod iron and bottom plate one at
Type, and there are a fixed gaps between the rod iron and support body, for filling elastic component.
Preferably, the elastic component is air bag.
Preferably, the height of the rod iron is higher than the height of support body, for protruding into the beam body preformed hole on top, with
Girder falling.
Preferably, the rod iron includes top barred body and lower part barred body, the top barred body is protruded into beam body preformed hole,
The top barred body is threadedly coupled with lower part barred body.
Preferably, the outside of the top rod iron is socketed with steel pile casting, the steel pile casting is located in beam body preformed hole, institute
It states and is arranged with rubber shock-absorbing ring in steel pile casting.
The anti-fall beam support of damping of the invention has the advantages that the present invention is pre- by being inserted into beam body by rod iron
Boxing out, it is anti-fall so that support body is played the role of support to beam body, is subtracted by the offer of the elastic component that is arranged between rod iron and support body
Shake effect can either meet the normal use requirement under non-geological process, and can satisfy the damping under earthquake and tamper-proof want
It asks.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the anti-fall beam support of damping in the present invention；
Fig. 2 is the overlooking structure diagram of the embodiment one of the anti-fall beam support of damping in the present invention；
Fig. 3 is the overlooking structure diagram of the embodiment two of the anti-fall beam support of damping in the present invention；
Fig. 4 is the mounting structure schematic diagram of the anti-fall beam support of damping in the present invention；
Fig. 5 is the schematic cross-sectional view of the steel bushing of the anti-fall beam support of damping in the present invention；
Fig. 6 is the schematic cross-sectional view of the rod iron of the anti-fall beam support of damping in the present invention；
Fig. 7 is structural schematic diagram of the anti-fall beam support of damping under normal use situation in the present invention；
Fig. 8 is structural schematic diagram of the anti-fall beam support of damping under geological process in the present invention.
In figure: 1, bottom plate；11, bolt hole；2, support body；21, steel plate；22, rubber layer；3, rod iron；31, upper bars
Body；32, lower part barred body；4, air bag；5, steel pile casting；6, rubber shock-absorbing ring；7, beam body.
Specific embodiment
Those skilled in the art are made to better understand technical solution of the present invention, it is right in the following with reference to the drawings and specific embodiments
The present invention elaborates.
Embodiment one
As shown in Figure 1, Figure 2, shown in Fig. 4 to Fig. 8, embodiment of the invention discloses a kind of anti-fall beam supports of damping, have anti-
Beam and shock-absorbing function are fallen, beam body 7 is used to support, the bottom of beam body 7 is equipped with beam body preformed hole, and the anti-fall beam support of damping includes support
The bottom plate 1 of main body 2 and strap bolt hole, the top of bottom plate 1 are conventional support bodies 2, and support body 2 is by rubber layer 22 and steel
Plate 21 is formed by stacking, and the shape of the top view of support body 2 is rectangle, and the center of support body 2 has center hole, is used for
It is inserted into rod iron 3, the bottom of rod iron 3 and bottom plate 1 are integrally formed, and are used between rod iron 3 and support body 2 there are a fixed gap
Elastic component is filled, elastic component can be air bag 4, and air bag 4 generates very big flexible deformation, can play protection support and damping
Effect.
The height of rod iron 3 is higher than the height of support body 2, the beam body preformed hole of the beam body 7 for protruding into top, with anti-fall
Beam.
In view of the replacement problem of support, rod iron 3 divides for two parts, as shown in fig. 6, rod iron 3 includes 31 He of top barred body
Lower part barred body 32, top barred body 31 protrude into the beam body preformed hole of beam body 7, and lower part barred body 32 is located in support body 2, upper bars
Body 31 is threadedly coupled with lower part barred body 32.When dismantling support, beam body 7 is lifted, support can be changed by disconnecting screw thread.
The top of rod iron 3 sets steel pile casting 5, and as shown in Figure 4 and Figure 5, the outside of top rod iron 31 is socketed with steel pile casting 5, steel
Casing 5 is located in the beam body preformed hole of beam body 7, and rubber shock-absorbing ring 6 is arranged in steel pile casting 5.In coming earthquake, steel pile casting 5
With rubber damping ring 6 and 4 collective effect of support body 2 and air bag, increases structural damping, keeps support hysteresis loop fuller,
Play cushioning effect.
Embodiment two
As shown in figure 3, its with embodiment one the difference is that, the shape of the top view of support body 2 is circle.
Working condition of the anti-fall beam support of one of present invention damping under normal use situation and under geological process is such as
Shown in Fig. 7 and Fig. 8, superstructure, rod iron 3 and support are supported by the support body 2 that steel plate 21 and rubber 22 are formed by stacking
There are a fixed gap, the sizes in gap to be displaced according to the maximum shear of support body 2 to determine for main body 2, and top barred body 31 needs
Beam body preformed hole is protruded into, the size of beam body preformed hole will be also displaced according to the maximum shear of support body 2 to determine, i.e., beam body is pre-
It boxes out identical as the aperture of the center hole of support body.The size in aperture will will meet support body 2 in reasonable range
It is shear-deformable under normal use situation, while to guarantee that failure by shear does not occur for geological process undersetting, i.e. support is sheared
Rod iron top is contacted with beam body preformed hole inner wall before destruction, plays position-limiting action.Steel pile casting 5 is set in beam body preformed hole, on
Portion's barred body 31 is contacted with rubber shock-absorbing ring 6, and rubber shock-absorbing ring 6 squeezes to a certain extent limitation beam body 7 displacement afterwards, is played anti-fall
Beam action.Gap between support body 2 and rod iron 3 is filled using air bag 4, and under geological process, air bag 4 generates very big
Flexible deformation plays cushioning effect and increases support durability.The inside of steel pile casting 5 is provided with rubber shock-absorbing ring 6, comes in earthquake
Temporarily with 4 collective effect of support body 2 and air bag, increase structural damping, keep support hysteresis loop fuller, plays damping work
With.
Support and limit element are combined together by the present invention, have both support also in the case where meeting normal use situation anti-fall
The function of beam and damping.Damping girder falling seat structure form of the present invention is simple, and stress is clear, collect support and girder falling function in
All over the body, solve the problems, such as that anti-fall girder apparatus design and construction is cumbersome in Practical Project.
The anti-fall beam support of damping in the present invention mainly has the function of girder falling, can not have to setting anti-fall girder apparatus, subtract
The process of few design and construction, while there is certain shock-absorbing function, reasonable to control pin and support body gap, earthquake comes
It can temporarily play the role of protecting support.The seat structure is simple, definite principle, and endurance quality is good, widely applicable.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (6)
1. a kind of anti-fall beam support of damping, is used to support beam body, the bottom of the beam body is equipped with beam body preformed hole, damping girder falling
Support includes the bottom plate of support body and strap bolt hole, and the support body is formed by stacking by rubber layer and steel plate, and feature exists
In, the center of the support body is equipped with center hole, and for being inserted into rod iron, the bottom of the rod iron and bottom plate are integrally formed,
And there are a fixed gaps between the rod iron and support body, for filling elastic component.
2. the anti-fall beam support of a kind of damping according to claim 1, which is characterized in that the elastic component is air bag.
3. the anti-fall beam support of a kind of damping according to claim 1, which is characterized in that the height of the rod iron is higher than support
The height of main body, for protruding into the beam body preformed hole on top, with girder falling.
4. the anti-fall beam support of a kind of damping according to claim 3, which is characterized in that the rod iron include top barred body and
Lower part barred body, the top barred body protrude into beam body preformed hole, and the top barred body is threadedly coupled with lower part barred body.
5. the anti-fall beam support of a kind of damping according to claim 4, which is characterized in that the external socket of the top rod iron
There is steel pile casting, the steel pile casting is located in beam body preformed hole, and rubber shock-absorbing ring is arranged in the steel pile casting.
6. the anti-fall beam support of a kind of damping according to claim 1, which is characterized in that the center hole of the support body
Diameter it is identical as the diameter of beam body preformed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811321921.2A CN109356023B (en) | 2018-11-08 | 2018-11-08 | Damping anti-falling beam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811321921.2A CN109356023B (en) | 2018-11-08 | 2018-11-08 | Damping anti-falling beam support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356023A true CN109356023A (en) | 2019-02-19 |
| CN109356023B CN109356023B (en) | 2021-01-15 |
Family
ID=65344417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811321921.2A Active CN109356023B (en) | 2018-11-08 | 2018-11-08 | Damping anti-falling beam support |
Country Status (1)
| Country | Link |
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| CN (1) | CN109356023B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629662A (en) * | 2019-10-16 | 2019-12-31 | 南京林业大学 | Bridge anti-falling constraint damper |
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| CN102287007A (en) * | 2010-11-11 | 2011-12-21 | 东南大学 | Soft steel core rubber mat-steel spring combined seismic isolation supporting seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110629662A (en) * | 2019-10-16 | 2019-12-31 | 南京林业大学 | Bridge anti-falling constraint damper |
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| Publication number | Publication date |
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| CN109356023B (en) | 2021-01-15 |
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