CN209508803U - A kind of compound section rubber shock absorption support - Google Patents
A kind of compound section rubber shock absorption support Download PDFInfo
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- CN209508803U CN209508803U CN201822228783.5U CN201822228783U CN209508803U CN 209508803 U CN209508803 U CN 209508803U CN 201822228783 U CN201822228783 U CN 201822228783U CN 209508803 U CN209508803 U CN 209508803U
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- rubber
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- plate
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Abstract
The utility model discloses a kind of compound section rubber shock absorption supports, including upper plate, lower roof plate and set on laminated rubber bearing between the two, the inside of laminated rubber bearing hollows out, it hollows out place and is equipped with multilayer sliding rubber support, the shape of multilayer sliding rubber support is adapted with the shape for hollowing out place, and it includes the sliding panel, sheet rubber and sheet metal being stacked that multilayer, which slides rubber support,.The utility model forms compound section by placing the method that multilayer slides rubber support in hollow slab type rubber support, so that there is support multilayer to slide ability, it is slided as much as possible under conditions of unstability does not occur, by adjusting the area accounting of multilayer sliding support and the laminated rubber bearing of reservation, the rigidity for the controllable support of the sliding surface number of plies for adjusting multilayer sliding support.
Description
Technical field
The utility model relates to science of bridge building, seismic resistance field, relate in particular to that multilayer can occur into a kind of earthquake
Constraint sliding is related specifically to a kind of combination so as to reduce rigidity and increase the laminated rubber bearing of deformation and energy dissipation capacity
Section rubber shock absorption support.
Background technique
With the development of China's economy and technology, bridge earthquake resistance demand is higher and higher, although common laminated rubber bearing
Simple structure, manufacture are easy for installation, but its shearing rigidity is excessive, and horizontal deformation and energy dissipation capacity are all too low, and sliding panel
Although formula support can have biggish horizontal displacement, its horizontal rigidity is too low, easily causes unstability, needs that hold-down support is cooperated to make
With anchor block will undertake biggish geological process.It both should not be used in antidetonation work, need to make improvements.
The vibration absorption and isolation support being most widely used in engineering at present is lead core rubber support: on the basis of General Purpose Rubber support
On, one or more lead rod is added in inside, the characteristic of plastic deformation is easily entered using lead rod, reduces rigidity and extends the period, together
When earthquake energy reach damping and isolation effect.However, lead is the toxic substance of a kind of pair of human body, in manufacture, use, repaired
It is easy to pollute the environment in journey, the discarded lead for retractable pencil processing after bearing replacement is also the environmental problem that should not be underestimated.
Therefore it needs to propose laminated rubber bearing new improvement plan, before retaining the original advantage of laminated rubber bearing
It puts, promote support subtracts isolation property and energy dissipation capacity.
Utility model content
The purpose of this utility model is that aiming at the shortcomings in the prior art, providing a kind of compound section rubber shock-absorbing branch
Seat, to solve the above problems.
The technical issues of the utility model is solved can be realized using following technical scheme:
A kind of compound section rubber shock absorption support, including upper plate, lower roof plate and set on board-like rubber between the two
The inside of support, the laminated rubber bearing hollows out, and the place of hollowing out of laminated rubber bearing is equipped with multilayer and slides rubber support, described
The shape of multilayer sliding rubber support is adapted with the shape for hollowing out place, and it includes the sliding being stacked that multilayer, which slides rubber support,
Plate, sheet rubber and sheet metal.
Further, the sliding panel is polyfluortetraethylene plate.
Further, the multilayer sliding rubber support includes at least one board-like sliding support, the board-like sliding branch
Seat includes sliding panel, sheet rubber and the sheet metal set gradually, and sheet rubber is connected with sliding panel and sheet metal vulcanization respectively.
Further, the multilayer sliding rubber support includes several board-like sliding supports that successively overlapping is arranged up and down,
Each sheet rubber is connected with adjacent sliding panel and sheet metal vulcanization respectively, and sliding panel is slidingly disposed at thin steel adjacent thereto
Plate surface.
Further, the upper plate and lower roof plate are steel plate material；The laminated rubber bearing hollows out place along board-like
The thickness direction of rubber support runs through laminated rubber bearing.
Further, the upper plate and lower roof plate pass through connector and laminated rubber bearing and multilayer sliding rubber respectively
Support is connected, and the connector includes that the first sealing plate, the second sealing plate, shearing-resistance blocks and connection bolt, multilayer slide rubber support
The first sealing plate, upper plate and lower roof plate are installed in first groove of upper and lower ends respectively and the corresponding position of the first groove is opened
Equipped with the second groove, shearing-resistance blocks are arranged in the empty slot of the first groove and the second groove type composition；Above and below laminated rubber bearing
Both ends offer third groove, and the second sealing plate is installed in third groove, the second sealing plate by connection bolt and upper plate or
Lower roof plate is fixed.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model forms combination by placing the method that multilayer slides rubber support in hollow slab type rubber support
Section is displaced at sliding surface and uprushes so that there is support multilayer to slide ability, and retained laminated rubber bearing constraint
Without will lead to the excessive destabilization problems of relative storey displacement, bigger displacement is adapted under normal operating condition.
2, device provided by the utility model has fully demonstrated the principle for subtracting shock insulation, that is, the balance for embodying " power and displacement " is closed
System, by reducing support horizontal shear rigidity, the abundant extending structure period improves structure permissible deformation value, to reduce bridge
Seismic response.
3, the utility model proposes can independently make and combined hollow slab type rubber support and multilayer sliding rubber
Support has the characteristics that simple production process, easy to use, cost is lower.
4, device provided by the utility model does not cause vertical bearing capacity as the improvement to laminated rubber bearing
Weaken, and size can be adjusted according to the design needs, various sizes of multilayer sliding branch can be used in continuous bridge
Seat size adjusts the load distribution under normal use, geological process, adapts to the displacement under different situations.
5, device provided by the utility model is avoided all using environmental protection, long life material as lead for retractable pencil support is to environment
Pollution, be conducive to sustainable development.
In conclusion the utility model can be improved while not weakening vertical bearing capacity, increase the position of sliding surface
It moves, adapts to superstructure displacement bigger under normal operating condition；The horizontal rigidity of support is reduced, so that extending structure is all
Phase reduces geological process suffered by structure；Multilayer constraint sliding can occur for the present apparatus, under conditions of unstability does not occur as far as possible
Ground slides, and has certain energy dissipation capacity under the effect of reciprocal horizontal power when earthquake.Can comprehensively consider geological process and
Rigidity requirement, the displacement demand of normal operating condition, and the size for requiring to carry out the application device is distributed according to pier internal force
Adjustment.
It includes rubber that the utility model setting multilayer, which slides rubber support and its layering to increase sliding surface, deformation,
Sliding deformation on shear-deformable and sliding surface；By adjusting the area of multilayer sliding support and the laminated rubber bearing of reservation
Accounting and the sliding surface number of plies for adjusting multilayer sliding support can control rigidity.Top is also adapted in normal operating condition to tie
The bigger displacement of structure, and adjust horizontal force and moment of flexure suffered by different-stiffness pier.In short, the utility model construction letter
List facilitates implementation, environmental protection and economy, is particularly suitable for Mid and minor spans highway continuous bridge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of compound section rubber shock absorption support described in the utility model.
Fig. 2 is the longitudinal sectional drawing of compound section rubber shock absorption support described in the utility model.
Fig. 3 is the partial cutaway view of compound section rubber shock absorption support described in the utility model.
Fig. 4 is the displacement model figure of compound section rubber support and laminated rubber bearing that software is analyzed.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
Referring to figs. 1 to 4, a kind of compound section rubber shock absorption support described in the utility model, including upper plate 10, under
Top plate 20 and set on laminated rubber bearing 30 between the two.Laminated rubber bearing 30 can for containing multilayer natural rubber with
Steel plate is inlayed, bonds, is vulcanized.The inside of laminated rubber bearing 30 hollows out, i.e. the boring of laminated rubber bearing 40, plate
The place of hollowing out of formula rubber support 30 is equipped with multilayer and slides rubber support 40, i.e., is placed in multilayer sliding rubber support 40 hollow
In laminated rubber bearing 30.The shape of multilayer sliding rubber support 40 is adapted with the shape for hollowing out place, and multilayer slides rubber branch
Seat 40 includes sliding panel 41, sheet rubber 42 and the sheet metal 43 being stacked.
The rubber in sheet rubber and laminated rubber bearing in multilayer sliding rubber support can use natural rubber, chlorine
Buna can also use high-damping rubber to increase support energy dissipation capacity.
The size that multilayer slides rubber support 40 is consistent with the size that laminated rubber bearing 30 hollows out, laminated rubber bearing 30
It can be adjusted according to the design needs with the shape and size of multilayer sliding rubber support 40.Multilayer slides rubber support 40
Size, the number of plies of polyfluortetraethylene plate can be adjusted according to the design needs.
Sliding panel 41 is polyfluortetraethylene plate, or other are conducive to the material of sliding friction.Sheet metal 43 can also
The material of opposite sliding can occur with polyfluortetraethylene plate to be substituted for other.
It includes at least one board-like sliding support that multilayer, which slides rubber support 40, i.e., board-like sliding support can for one or
It is multiple, be filled in inside the laminated rubber bearing 30 hollowed out, and formed compound section be mounted on upper plate 10, lower roof plate 20 it is recessed
In slot；Upper plate 10 and lower roof plate 20 are reliably connected by bolt part and the reservation member being embedded on bridge and pier respectively
It connects.Board-like sliding support includes the sliding panel 41, sheet rubber 42 and sheet metal 43 set gradually, sheet rubber 42 respectively with sliding panel
41 and sheet metal 43 vulcanize bonding connection.
Multilayer sliding rubber support 40 can only include a board-like sliding support, sheet rubber 42 respectively with sliding panel 41 and
The vulcanization connection of sheet metal 43, the sliding of sliding panel 41 are set to 20 surface of upper plate 10 or lower roof plate of steel material.
Multilayer slides rubber support 40 or multiple board-like sliding supports, if that is, multilayer sliding rubber support 40 includes
The dry board-like sliding support that successively overlapping is arranged up and down.Each sheet rubber 42 respectively with 43 sulphur of adjacent sliding panel 41 and sheet metal
Change connection；Sliding panel 41 is slidingly disposed at 43 surface of sheet metal adjacent thereto, so that between different board-like sliding supports
It can opposite sliding.
Upper plate 10 and lower roof plate 20 are steel plate material, and shape can adjust according to the design needs with size.Upper and lower top plate
20 have bolt hole, can be reliably connected with the built-in fitting of beam bottom, pier top.Laminated rubber bearing 30 hollows out place along board-like
The thickness direction of rubber support 30 runs through laminated rubber bearing 30, so that laminated rubber bearing and multilayer the sliding rubber hollowed out
Glue support can independently make, and can manufacture the laminated rubber bearing hollowed out and internal multilayer sliding rubber branch by formwork erection respectively
Then seat re-forms compound section plus sealing plate, so that the processing of entire support is more convenient.
Upper plate 10 and lower roof plate 20 slide rubber support 40 by connector and laminated rubber bearing 30 and multilayer respectively
It is connected.Connector includes that the first sealing plate 51, the second sealing plate 52, shearing-resistance blocks 60 and connection bolt 61, multilayer slide rubber support 40
Upper and lower ends the first groove in be installed with the first sealing plate 51 respectively, upper plate 10 and lower roof plate 20 are corresponding with the first groove
The second groove is offered at position, shearing-resistance blocks 60 are arranged in the empty slot of the first groove and the second groove type composition.Shearing-resistance blocks 60
It can be bloom, shearing-resistance blocks 60 and upper plate 10 or lower roof plate 20 are weldingly connected at this time and slide rubber support 40 with multilayer
Sliding is connected；Shearing-resistance blocks 60 or sliding material, the upper plate 10 or lower roof plate 20 of shearing-resistance blocks 60 and steel slide at this time
Setting.The upper and lower ends of laminated rubber bearing 30 offer third groove, and the second sealing plate 52 is installed in third groove, and second
Sealing plate 52 is fixedly linked by connecting bolt 61 with upper plate 10 or lower roof plate 20.It is of course also possible in the bottom surface of upper plate 10
A big groove is opened up respectively on the upper and top surface of lower roof plate 20, the both ends of entire support is installed in respectively corresponding big recessed
In slot, then rubber support is connected with upper lower roof plate by corresponding sealing plate, shearing-resistance blocks and connection bolt again.In upper lower roof plate
Portion's setting groove or embedding shearing-resistance blocks can guarantee being reliably connected for support and upper lower roof plate, avoid rubber block from being detached from upper and lower
Top plate.The connection type of the embodiment that only upper and lower top plate is connect with rubber support above, rubber support and upper lower roof plate is not
Be confined to the above form, if can guarantee do not come to nothing between top plate and rubber support, skid-resistant connection structure or connection type
It is suitable for this.
The utility model is by combining laminated rubber bearing and sliding laminated rubber bearing, to form a kind of combination section
Face rubber shock absorption support, it is shown that the specific working principle is as follows:
It is identical that the vertical rigidity and anti-pressure ability and laminated rubber bearing of multilayer sliding rubber support are hollowed out part, therefore
The vertical bearing capacity of support is guaranteed；In horizontal direction, the shearing rigidity that multilayer slides rubber support is much smaller than board-like rubber
Glue support, compound section support is equivalent at the sliding surface of multilayer sliding rubber support weakens section, meeting under horizontal force action
It is subjected to displacement and uprushes, the whole shearing rigidity of support is reduced, and bridge cycle stretch-out when geological process, seismic structural response subtracts
It is small, reach damping and isolation effect, and the effect can slide the size of rubber support by adjusting multilayer to be adjusted；In earthquake
Under effect, multiple sliding surfaces can sliding friction simultaneously, and be unlikely to interlayer by the constraint of the laminated rubber bearing retained
It is displaced excessive unstability, therefore there is certain energy dissipation capacity under the effect of reciprocal horizontal power；After geological process, rubber has
Elastic restoring force easily returns to original state, and guarantees function of the bridge as earthquake relief work repairing thoroughfare, can repair rapidly and replace
It changes.Internal force suffered by pier can be adjusted by adjusting the size of multilayer sliding rubber support in normal operation, and
And adapt to the biggish displacement of the superstructure due to caused by temperature action etc..
Fig. 4 is the compound section rubber shock absorption support analyzed by finite element software SAP2000 and board-like rubber branch
Seat is under the horizontal force action that top acts on the same direction and size, the displacement model figure of generation.Left hand view is compound section rubber
Glue shock mount, wherein tilting long line segment unit represents rubber layer, inclination short-term segment frames unit represents sliding surface；In right part of flg
Inclined line segment unit simulation laminated rubber bearing.As seen from Figure 4, traditional laminated rubber bearing is in horizontal force action
Under, displacement is smaller, and rigidity is larger, and deformation is uniform；And compound section rubber shock absorption support is under horizontal force action, at sliding surface
Since section locally weakens, rigidity reduces, and displacement is uprushed, and overall displacements are larger, therefore can reduce overall stiffness, extends week
Phase reduces geological process suffered by substructure according to the relationship of power and displacement balance.Sliding surface is by the board-like rubber retained
Support restraint, can be to avoid the excessive generation unstability of relative storey displacement；After earthquake, support can be restored to due to the restoring force of rubber
Original state.
The utility model is with the support example of simplest highway continuous bridge come when designing, elder generation is with vertically anti-according to support
Power determines support area, using finite element software, support relative displacement is allowed in normal operating condition, guarantees geological process
Under the premise of lower energy plays enough damping and isolation effects, the horizontal rigidity needed, support thickness are determined, and then determine that inside multilayer is sliding
The size of dynamic rubber support；The size of rubber support can be slided, by adjusting internal multilayer simultaneously to adjust different-stiffness
Pier internal force adapts to superstructure in the inferior bigger deformation of temperature action, so that pier internal force is in normal use or earthquake
Under effect situation as far as possible uniformly.
There are three effects when earthquake occurs for the utility model:
(1) reduce horizontal rigidity, increase the period, can be staggered site predominant period, reach damping and isolation effect；
(2) internal multilayer sliding rubber support can consume ground to a certain extent by the friction on multiple sliding surfaces
Energy is shaken, and not will cause unstability under the constraint of the laminated rubber bearing of reservation；
(3) after geological process, support can be restored to by the elastic restoring force of rubber close to original state.
Furthermore, it is possible to according to the rigidity requirement of normal use, superstructure the temperature the effects of under displacement demand, pier
Internal force distribution requirements adjust the size of internal multilayer sliding rubber support, and construction technology is simple, as laminated rubber bearing
It is conveniently replaceable maintenance, no pollution to the environment has sustainability and developability.
The utility model is being protected by hollowing out laminated rubber bearing and filling multilayer sliding rubber support formation compound section
The shear stiffness that can reduce support under the premise of card support vertical bearing capacity, increases Admissible displacement and structure natural period, reaches
To sufficient damping and isolation effect, there is self-reparability after geological process.Under geological process, internal multilayer slides rubber branch
Can the sliding friction on multiple sliding surfaces under the premise of avoiding unstability, consume energy.The section of multilayer sliding rubber support
Size, quantity, the selection of material and shape can be adjusted according to concrete condition, any according to made by the application design
Be only that formal but not substantive equivalent transformation is regarded as the technical solution scope of the application.
Rubber support is slided the utility model proposes the multilayer convenient for production construction, by filling it into the plate hollowed out
Inside formula rubber support so that support have energy dissipation capacity, without being reconfigured the ancillary equipments such as damper, can reduce engineering at
This investment and design and construction difficulty, are particularly suitable for the highway continuous bridge of Mid and minor spans.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of compound section rubber shock absorption support, including upper plate, lower roof plate and set on board-like rubber branch between the two
Seat, it is characterised in that: the inside of the laminated rubber bearing hollows out, and the place of hollowing out of laminated rubber bearing is equipped with multilayer and slides rubber
Support, the shape of the multilayer sliding rubber support are adapted with the shape for hollowing out place, and it includes stacking that multilayer, which slides rubber support,
Sliding panel, sheet rubber and the sheet metal of setting.
2. compound section rubber shock absorption support according to claim 1, it is characterised in that: the sliding panel is polytetrafluoroethyl-ne
Alkene plate.
3. compound section rubber shock absorption support according to claim 1, it is characterised in that: the multilayer slides rubber support
Including at least one board-like sliding support, the board-like sliding support includes the sliding panel, sheet rubber and sheet metal set gradually,
Sheet rubber is connected with sliding panel and sheet metal vulcanization respectively.
4. compound section rubber shock absorption support according to claim 3, it is characterised in that: the multilayer slides rubber support
Including it is several successively up and down overlapping setting board-like sliding supports, each sheet rubber respectively with adjacent sliding panel and sheet metal sulphur
Change connection, sliding panel is slidingly disposed at surface of thin steel sheet adjacent thereto.
5. compound section rubber shock absorption support according to claim 1, it is characterised in that: the upper plate and lower roof plate are
Steel plate material；Laminated rubber bearing is run through along the thickness direction of laminated rubber bearing in the place that hollows out of the laminated rubber bearing.
6. compound section rubber shock absorption support according to claim 5, it is characterised in that: the upper plate and lower roof plate point
Not Tong Guo connector and laminated rubber bearing and multilayer slide rubber support and be connected, the connector includes the first sealing plate, second
Sealing plate, shearing-resistance blocks and connection bolt, multilayer sliding rubber support upper and lower ends the first groove in be installed with the first envelope respectively
The corresponding position of plate, upper plate and lower roof plate and the first groove offers the second groove, shearing-resistance blocks be arranged in the first groove and
In the empty slot of second groove type composition；The upper and lower ends of laminated rubber bearing offer third groove, and the second sealing plate is installed on
In third groove, the second sealing plate is fixed by connection bolt with upper plate or lower roof plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228783.5U CN209508803U (en) | 2018-12-28 | 2018-12-28 | A kind of compound section rubber shock absorption support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822228783.5U CN209508803U (en) | 2018-12-28 | 2018-12-28 | A kind of compound section rubber shock absorption support |
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| CN209508803U true CN209508803U (en) | 2019-10-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629405A (en) * | 2018-12-28 | 2019-04-16 | 同济大学 | A kind of compound section reduces the large deformation rubber support of shear stiffness |
| CN112196945A (en) * | 2020-11-10 | 2021-01-08 | 南通装配式建筑与智能结构研究院 | Damping and noise reducing device and mounting method thereof |
-
2018
- 2018-12-28 CN CN201822228783.5U patent/CN209508803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629405A (en) * | 2018-12-28 | 2019-04-16 | 同济大学 | A kind of compound section reduces the large deformation rubber support of shear stiffness |
| CN112196945A (en) * | 2020-11-10 | 2021-01-08 | 南通装配式建筑与智能结构研究院 | Damping and noise reducing device and mounting method thereof |
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