CN105113635B - Universal horizontal elastomeric composition bearing - Google Patents
Universal horizontal elastomeric composition bearing Download PDFInfo
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- CN105113635B CN105113635B CN201510588447.XA CN201510588447A CN105113635B CN 105113635 B CN105113635 B CN 105113635B CN 201510588447 A CN201510588447 A CN 201510588447A CN 105113635 B CN105113635 B CN 105113635B
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Abstract
A kind of universal horizontal elastomeric composition bearing, including being connected between superstructure and substructure, the at least one bidirectional sliding support and at least one universal horizontal elastic support being set up in parallel, the universal horizontal elastic support is the upper bracket plate by being connected with superstructure, the horizontal resiliency device composition being provided between the lower support plate and upper bracket plate and lower support plate that are connected with substructure, the downside surface of the upper bracket plate is provided with one group of indent by rule arrangement and contacts cave, the horizontal resiliency device is one group and the one-to-one vertical cantilever rod iron in cave is contacted with indent.Simple structure of the present invention, power transmission are clear and definite, completely eliminate the problem of existing bidirectional spring bearing may block, and can be widely applied to architectural bidirectional spring bearing connection, and be particularly suitable for use in roof structure and lower support structure in longspan structure are articulated and connected.
Description
Technical field
It is particularly a kind of to be used in universal elasticity horizontal in longspan structure the invention belongs to seismic technology engineering field
Bearing.
Background technology
Existing bidirectional spring hinged-support is developed on the basis of bidirectional sliding support, is widely used in greatly across knot
Structure, it is possible to achieve following functions：First, there is the turning power of all directions；2nd, vertical load caused by superstructure can be passed
It is delivered to lower support structure；3rd, can be by the level of a direction caused by superstructure by designing suitable spring rate
Load bearing part is delivered to lower support structure；4th, structure can allow for carry out limited slip in this horizontal direction.
The construction of bidirectional spring hinged-support as illustrated in the accompanying drawings from 1 to 3, mainly by upper bracket plate 1, the first stainless steel plate 2, first
Polytetrafluoroethylene (PTFE) plane slide plate 3, middle spherical plate 4, polytetrafluoroethylene (PTFE) spherical slide plate 5, intermediate host 6, the second polytetrafluoroethylene (PTFE)
Plane slide plate 7, the second stainless steel plate 8, lower support plate 9, casing 10, flat spring 11, dust cover 12, the stainless steel of bolt 13 and the 3rd
Plate 14 forms.The support style realizes third and fourth above-mentioned function by flat spring, i.e., resists superstructure using flat spring
The caused horizontal loading perpendicular to flat spring direction, while by being designed to the rigidity of flat spring, allow bearing suitable
Flat spring direction limited slip.Because flat spring can only provide unidirectional spring rate, such bidirectional spring bearing uses plate
Spring constructs, and can only be moved in the two directions, complicated or in the case of installation deviation being present if in stress, this branch
Seat can produce bearing in sliding process and block, lose the problem of limited spring rate and sliding function are limited.
The content of the invention
It is an object of the invention to provide a kind of universal horizontal elastomeric composition bearing, and to solve existing spring fastening may produce
Raw spring blocks, loses limited spring rate and technical problem that sliding function is limited.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of universal horizontal elastomeric composition bearing, including be connected between superstructure and substructure, be set up in parallel
At least one bidirectional sliding support and at least one universal horizontal elastic support, the universal horizontal elastic support be by with top
The water being provided between the upper bracket plate of structure connection, the lower support plate and upper bracket plate and lower support plate being connected with substructure
Flat elastic device composition,
The downside surface of the upper bracket plate is provided with one group of indent by rule arrangement and contacts cave, the horizontal resiliency device
It is one group and the one-to-one vertical cantilever rod iron in cave is contacted with indent, the cantilever rod iron is the head by stretching into indent contact cave
The bending resistance elastic cone body portion composition being connected with the downside of the center on portion and head, the surrounding on the head contact the side wall ring in cave with indent
To contact, the height on head is less than the height in indent contact cave, the top on head is contacted the cave bottom guarantee in cave with indent and leaves
Anticollision space, the external diameter at the top in the bending resistance elastic cone body portion are less than the external diameter on head, and also stretch into indent contact cave it
Side wall guarantee interior, that cave is contacted with indent leaves anticollision space, and the bottom in bending resistance elastic cone body portion is fixedly connected with lower support plate.
The indent contact cave is distributed in the downside surface of upper bracket plate.
The company's of being provided with groove between the downside surface of the upper bracket plate, two neighboring indent contact cave, the fluting of the even groove
Depth is less than the depth that head is stretched within indent contact cave.
The indent contact cave is in inverted U, is divided into top spherical crown surface and the sidepiece face of cylinder, the greatest circle of top spherical crown surface are straight
Footpath is equal with the cross circular section diameter on the sidepiece face of cylinder.
The head is spheroid, and the diameter on head is equal with the cross circular section diameter on the sidepiece face of cylinder, the bending resistance elasticity
Cone body portion is up-small and down-big round platform, and the external diameter of upper surface is less than the diameter on head.
The bidirectional sliding support includes sliding support connecting rod, the sliding support upper bracket being from top to bottom sequentially connected
Plate, sliding support stainless steel plate, sliding support polytetrafluoroethylene (PTFE) plane slide plate, sliding support intermediate host, sliding support poly- four
The spherical slide plate of PVF and sliding support lower support plate.
Compared with prior art the invention has the characteristics that and beneficial effect：
The combined support that the present invention is made up of bidirectional sliding support and universal horizontal elastic support, compared with it is two-way
Spring hinge support is compared, first all directions in bidirectional sliding support and the achievable background technology of universal horizontal elastic support
The ability of rotation；And middle spherical plate, polytetrafluoroethylene (PTFE) spherical slide plate, stainless steel plate, poly- four are realized by bidirectional sliding support
Vertical load caused by superstructure can be delivered to lower support knot possessed by PVF plane slide plate and intermediate host
The second point function of the construction of structure；Flat spring is replaced by the cantilever rod iron of the horizontal resiliency device of universal horizontal elastic support, hanged
Arm rod iron lower end is connected to lower support plate, and the head of cantilever rod iron contacts cave with indent and contacted, any side caused by superstructure
To horizontal loading cave can be contacted by indent and be delivered to cantilever rod iron, and substructure is delivered to by cantilever rod iron, it is real
Existing third and fourth function.
The present invention realizes that different springs is firm by the diameter and height for designing the cantilever rod iron of universal horizontal elastic support
Degree, that is, the bending rigidity for adjusting cantilever rod realizes different spring rates, because cantilever rod iron any level bending rigidity is equal,
Therefore combined isolator can be realized along any direction finite stiffness, connecing for cave and cantilever rod iron is contacted by the indent in upper bracket plate
Touch, part of horizontal power can be delivered to lower junction by the horizontal loading of any direction caused by superstructure by cantilever rod iron
Structure, realizes the function of the limited slip of upper bracket plate any direction, finally realizes the function of universal horizontal elastomeric composition bearing.
Simple structure of the present invention, power transmission are clear and definite, completely eliminate the problem of existing bidirectional spring bearing may block, can be wide
General to be connected applied to architectural bidirectional spring bearing, be particularly suitable for use in roof structure and lower support structure in longspan structure
Be articulated and connected.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structure Y-direction schematic diagram of existing bidirectional spring hinged-support.
Fig. 2 is the structure Z-direction schematic diagram of existing bidirectional spring hinged-support.
Fig. 3 is the structure bidirectional-movement schematic diagram of existing bidirectional spring hinged-support.
Fig. 4 is the structural representation of universal horizontal elastomeric composition bearing of the present invention.
Fig. 5 is Fig. 4 fractionation schematic diagram.
Fig. 6 is the structural representation of bidirectional sliding support.
Fig. 7 is the structural representation of universal horizontal elastic support.
Fig. 8 is Fig. 7 cross-sectional view.
Fig. 9 be the present invention universal horizontal elastic support stress before state diagram.
Figure 10 is the deformation state figure of Fig. 9 universal horizontal elastic supports after by horizontal direction active force.
Figure 11 is the partial enlarged drawing at the indent contact cave of universal horizontal elastic support.
Reference：In 1- upper bracket plates, the stainless steel plates of 2- first, the first polytetrafluoroethylene (PTFE) of 3- plane slide plate, 4-
Between spherical plate, 5- polytetrafluoroethylene (PTFE) spherical slide plate, 6- intermediate hosts, the second polytetrafluoroethylene (PTFE) of 7- plane slide plate, 8- second
Stainless steel plate, 9- lower support plates, 10- casings, 11- flat springs, 12- dust covers, 13- bolts, the stainless steels of 14- the 3rd
Plate, 15- superstructures, 16- substructures, 17- indents contact cave, 18- cantilevers rod iron, 19- heads, 20- bending resistance bullets
Property cone body portion, spherical crown surface at the top of 21-, the 22- sidepieces face of cylinder, 23- bidirectional sliding supports, 24- sliding supports connecting rod,
25- sliding supports upper bracket plate, 26- sliding supports stainless steel plate, 27- sliding support polytetrafluoroethylene (PTFE) plane slide plate, 28-
Sliding support intermediate host, the spherical slide plate of 29- sliding support polytetrafluoroethylene (PTFE), 30- sliding support lower support plates.
Embodiment
Embodiment is referring to shown in Fig. 4-5, a kind of universal horizontal elastomeric composition bearing, including is connected to superstructure 15 with
Between portion's structure 16, at least one bidirectional sliding support 23 for being set up in parallel and at least one universal horizontal elastic support set side by side
Put.
Referring to described in Fig. 6, sliding support connecting rod 24 that the bidirectional sliding support 23 includes from top to bottom being sequentially connected,
In sliding support upper bracket plate 25, sliding support stainless steel plate 26, sliding support polytetrafluoroethylene (PTFE) plane slide plate 27, sliding support
Between main body 28, the spherical slide plate 29 of sliding support polytetrafluoroethylene (PTFE) and sliding support lower support plate 30.
Referring to shown in Fig. 7-11, the universal horizontal elastic support be by be connected with superstructure 15 upper bracket plate 1, with
The horizontal resiliency device composition being provided between lower support plate 9 and upper bracket plate 1 and lower support plate 9 that substructure 16 connects,
The downside surface of the upper bracket plate 1 is provided with one group of indent by rule arrangement and contacts cave 17, and the horizontal resiliency device is one
Group contacts the one-to-one vertical cantilever rod iron 18 in cave 17 with indent, and the cantilever rod iron is by stretching into indent contact cave 17
The bending resistance elastic cone body portion 20 being connected with the downside of the center on head 19 and head 19 forms, and the surrounding on the head 19 contacts with indent
The side wall ring contact in cave 17, ensures that contact portion transmits horizontal force.The height on head is less than the height in indent contact cave 17, makes
The cave bottom guarantee that the top on head 19 contacts cave 17 with indent leaves anticollision space, ensures that head is not subject to the vertical of superstructure
Power.The external diameter at the top in the bending resistance elastic cone body portion 20 be less than head 19 external diameter, and also stretch into indent contact cave 17 it
Side wall guarantee interior, that cave 17 is contacted with indent leaves anticollision space, ensures that bending resistance elastic cone body portion 20 is not involved in transmitting horizontal force,
The bottom in bending resistance elastic cone body portion 20 is fixedly connected with lower support plate 9.
The indent contact cave is distributed in the downside surface of upper bracket plate.The downside surface of the upper bracket plate 1, adjacent two
Between individual indent contact cave can also company of being provided with groove, the groove depth of the even groove less than head 19 stretch into indent contact cave 17 it
Interior depth.
Shown in Figure 11, the indent contact cave 17 is in inverted U, is divided into top spherical crown surface 21 and the sidepiece face of cylinder 22,
The maximum circular diameter of top spherical crown surface is equal with the cross circular section diameter on the sidepiece face of cylinder.The head is spheroid, head it is straight
Footpath is equal with the cross circular section diameter on the sidepiece face of cylinder, and the bending resistance elastic cone body portion is up-small and down-big round platform, upper surface
External diameter is less than the diameter on head.
In the present embodiment, upper bracket plate 1 by bolt or is welded to connect with superstructure 15, lower support plate 9 and bottom
Structure 16 is by bolt or is welded to connect.Cantilever rod iron 2 welds with lower support plate 3.The size of bidirectional sliding support 23 by
Bearing vertical load determines that the setting number of universal horizontal elastic support determines according to the support spring rigidity of design requirement.
By taking certain engineering susceptor design process as an example, the making of universal horizontal elastomeric composition bearing is specifically described.
Spring fastening global stiffness is k0=24000kN/m at the top of certain Core Walls Structure, and 6 water are arranged according to Core Walls Structure headroom
Flat sliding support and 6 universal elastic supports, the horizontal spring rigidity of single universal elastic support are the kN/m of k1=4000.It is horizontal
Sliding support according to《Spherical bearing for bridge》（GB/T17955-2009）It is designed.Universal elastic support design is as follows, according to
Space determines that bearing installation total height be H=770mm, determines the cave bottom in indent contact cave in upper bracket plate to plate by construction
Thickness a on the upside of body1=20mm, the height a on head and the anticollision space at cave bottom2=10mm, the downside of head end to upper bracket plate
Distance a3=30mm.Partial pressing and detailing requiments between the side wall in cave are contacted with indent according to head and determine that head ball is straight
Footpath d3=45mm, then the height of cantilever rod iron is h=697.5mm.
According to Core Walls Structure top width, upper bracket plate and lower support plate are square plate, length and width be B=
800mm, under the premise of meeting that upper bracket plate opens the operating space of cave, cantilever rod iron with lower support plate welding, rod iron spacing is S2=
150mm, rod iron center and support plate back gauge are S1=100mm, rod iron quantity are n=25 piece.
Susceptor design limit displacement value is 50mm, and rod iron material is Q460 building structural steels, is cut according to cantilever rod iron upper end
Face shear-carrying capacity and detailing requiments determine upper surface width d1=20mm of cantilever rod iron.The horizontal rigidity of single cantilever rod iron
For ki, according to spring rate calculating principle k in parallel1=nki,。
If, cantilever rod top displacement, as P=1, then the shape of cantilever rod
Constant is,。
Therefore：,。
Conclusion：1st, head contacts the contact structure in cave with indent and realizes horizontal force and effectively transmit.2nd, cantilever rod iron is circle
Shape rod iron, isotropism, the horizontal rigidity of each level is equal, and it is excessive in non-principal direction spring rate to avoid butterfly spring,
The problems such as being likely to occur bearing neck.3rd, the present invention be truly realized it is each to spring rates such as levels, not neck, rotatable mesh
Mark.
Claims (1)
1. a kind of universal horizontal elastomeric composition bearing, including it is connected to superstructure（15）With substructure（16）Between, side by side
At least one bidirectional sliding support set（23）With at least one universal horizontal elastic support, the universal horizontal elastic support
Be by with superstructure（15）The upper bracket plate of connection（1）With substructure（16）The lower support plate of connection（9）And upper bracket
Plate（1）And lower support plate（9）Between be provided with horizontal resiliency device composition, it is characterised in that：
The upper bracket plate（1）Downside surface be provided with one group by rule arrangement indent contact cave（17）, the horizontal resiliency
Device is one group and contacts cave with indent（17）One-to-one vertical cantilever rod iron（18）, the cantilever rod iron is by stretching into
Recessed contact cave（17）Head（19）And head（19）Center on the downside of the bending resistance elastic cone body portion that is connected with（20）Composition, the head
Portion（19）Surrounding contact cave with indent（17）The contact of side wall ring, the height on head is less than indent contact cave（17）Height
Degree, makes head（19）Top contact cave with indent（17）Cave bottom ensure leave anticollision space, the bending resistance elastic cone body portion
（20）The external diameter at top be less than head（19）External diameter, and also stretch into indent contact cave（17）Within, with indent contact cave
（17）Side wall ensure leave anticollision space, bending resistance elastic cone body portion（20）Bottom and lower support plate（9）It is fixedly connected；
The indent contact cave is distributed in the downside surface of upper bracket plate；
The indent contacts cave（17）In inverted U, it is divided into top spherical crown surface（21）With the sidepiece face of cylinder（22）, top spherical crown surface
Maximum circular diameter is equal with the cross circular section diameter on the sidepiece face of cylinder；
The upper bracket plate（1）Downside surface, two neighboring indent contact cave between company of being provided with groove, it is described even groove fluting depth
Degree is less than head（19）Stretch into indent contact cave（17）Within depth；
The head is spheroid, and the diameter on head is equal with the cross circular section diameter on the sidepiece face of cylinder, the bending resistance elastic cone body
Portion is up-small and down-big round platform, and the external diameter of upper surface is less than the diameter on head；
The bidirectional sliding support（23）Including the sliding support connecting rod being from top to bottom sequentially connected（24）, prop up on sliding support
Seat board（25）, sliding support stainless steel plate（26）, sliding support polytetrafluoroethylene (PTFE) plane slide plate（27）, sliding support intermediate host
（28）, the spherical slide plate of sliding support polytetrafluoroethylene (PTFE)（29）With sliding support lower support plate（30）.
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| CN201510588447.XA CN105113635B (en) | 2015-09-16 | 2015-09-16 | Universal horizontal elastomeric composition bearing |
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| CN201510588447.XA CN105113635B (en) | 2015-09-16 | 2015-09-16 | Universal horizontal elastomeric composition bearing |
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| CN105113635B true CN105113635B (en) | 2018-01-23 |
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| CN106758784B (en) * | 2017-03-10 | 2018-09-21 | 衢州学院 | A kind of Longspan Bridge vibration absorber |
| CN107059827B (en) * | 2017-04-28 | 2023-04-28 | 招商局重庆交通科研设计院有限公司 | Floating rotary drum buffer stop |
| CN107178240A (en) * | 2017-05-09 | 2017-09-19 | 上海市建筑科学研究院(集团)有限公司 | Spherical steel support with bidirectional elastic rigidity |
| CN111677123B (en) * | 2020-05-21 | 2021-12-07 | 中建二局安装工程有限公司 | Hinged support reinforcing structure and construction method thereof |
| CN112982708B (en) * | 2021-02-23 | 2022-04-22 | 中国地震局工程力学研究所 | Alleviate two-way metal consumer of assembled self-reset dumbbell shape of film effect |
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| JPH08240033A (en) * | 1995-03-02 | 1996-09-17 | Sumitomo Constr Co Ltd | Base isolation structure |
| JPH11325179A (en) * | 1998-05-19 | 1999-11-26 | Esuio Kk | Base isolation unit |
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