CN105113635A - Universal horizontal elastic combined support - Google Patents
Universal horizontal elastic combined support Download PDFInfo
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- CN105113635A CN105113635A CN201510588447.XA CN201510588447A CN105113635A CN 105113635 A CN105113635 A CN 105113635A CN 201510588447 A CN201510588447 A CN 201510588447A CN 105113635 A CN105113635 A CN 105113635A
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Abstract
The invention provides a universal horizontal elastic combined support. The universal horizontal elastic combined support comprises at least one two-way sliding support and at least one universal elastic support which are connected between an upper structure and a lower structure and arranged side by side. The universal horizontal elastic support is composed of an upper support plate connected with the upper structure, a lower support plate connected with the lower structure, and horizontal elastic devices arranged between the upper support plate and the lower support plate. A set of inwards-concave contact holes formed regularly are formed in the surface of the lower side of the upper support plate. The horizontal elastic devices are a set of vertical cantilever steel bars corresponding to the inwards-concave contact holes one to one. The universal horizontal elastic combined support is simple in structure and definite in force transmission, the problem that an existing two-way spring support can be probably clamped is completely solved, and the universal horizontal elastic combined support can be widely applied to two-way spring support connection on a building and is especially suitable for hinge connection of roof structures and lower bearing structures in large-span structures.
Description
Technical field
The invention belongs to seismic technology engineering field, particularly a kind of universal elastic support being used in level in longspan structure.
Background technology
Existing bidirectional spring hinged-support develops on the basis of bidirectional sliding support, is widely used in large-span structure, can realizes following functions: the turning power one, with all directions; Two, the vertical load that superstructure produces can be delivered to lower support structure; Three, the horizontal loading part of a direction of superstructure generation can be delivered to lower support structure by the spring rate that design is suitable; Four, structure can be allowed to carry out limited slip in this horizontal direction.
The structure of bidirectional spring hinged-support as illustrated in the accompanying drawings from 1 to 3, forms primarily of upper bracket plate 1, first corrosion resistant plate 2, first polytetrafluoroethylene (PTFE) plane slide plate 3, intermediate panel 4, polytetrafluoroethylene (PTFE) sphere slide plate 5, intermediate host 6, second polytetrafluoroethylene (PTFE) plane slide plate 7, second corrosion resistant plate 8, lower support plate 9, casing 10, flat spring 11, dust cover 12, bolt 13 and the 3rd corrosion resistant plate 14.This support style realizes third and fourth above-mentioned function by flat spring, namely the horizontal loading perpendicular to flat spring direction that flat spring antagonism superstructure produces is adopted, simultaneously by designing the rigidity of flat spring, make bearing can along flat spring direction limited slip.Because flat spring can only provide unidirectional spring rate, this type of bidirectional spring bearing adopts flat spring structure, can only move in the two directions, if in stressed complexity or when there is installation deviation, this bearing can produce bearing and block, loses limited spring rate and the limited problem of sliding function in sliding process.
Summary of the invention
The object of this invention is to provide a kind of universal horizontal elastomeric composition bearing, the issuable spring of existing spring fastening be solved and block, lose limited spring rate and the limited technical problem of sliding function.
For achieving the above object, the present invention adopts following technical scheme:
A kind of universal horizontal elastomeric composition bearing, comprise be connected between superstructure and substructure, at least one bidirectional sliding support of being set up in parallel and at least one universal horizontal elastic support, the lower support plate that described universal horizontal elastic support is connected with substructure by the upper bracket plate be connected with superstructure and the horizontal resiliency device be provided with between upper bracket plate and lower support plate form
The downside surface of described upper bracket plate has one group of indent contact cave regularly arranged, described horizontal resiliency device is one group and contacts cave cantilever rod iron vertical one to one with indent, described cantilever rod iron forms by stretching into the bending resistance elastic cone body portion be connected with on the downside of the indent contact head in cave and the center of head, the surrounding of described head contacts the side wall ring in cave to contact with indent, the height of head is less than the height in indent contact cave, the top of head is contacted with indent at the bottom of the cave in cave ensure to leave crashproof space, the external diameter at the top in described bending resistance elastic cone body portion is less than the external diameter of head, and also stretch within indent contact cave, the sidewall contacting cave with indent ensures to leave crashproof space, the bottom in bending resistance elastic cone body portion is fixedly connected with lower support plate.
Described indent contact cave is distributed in the downside surface of upper bracket plate.
Companys of having groove between the downside surface of described upper bracket plate, adjacent two indents contact cave, the described groove depth connecting groove is less than head and stretches into indent and contact the degree of depth within cave.
Described indent contact cave is inverted U, is divided into top spherical crown surface and the sidepiece face of cylinder, the greatest circle diameter of top spherical crown surface and the cross circular section equal diameters on the sidepiece face of cylinder.
Described head is spheroid, the diameter of head and the cross circular section equal diameters on the sidepiece face of cylinder, and described 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 of head.
Described bidirectional sliding support comprises the sliding support connecting rod, sliding support upper bracket plate, sliding support corrosion resistant plate, sliding support polytetrafluoroethylene (PTFE) plane slide plate, sliding support intermediate host, the spherical slide plate of sliding support polytetrafluoroethylene (PTFE) and the sliding support lower support plate that connect successively from top to bottom.
Compared with prior art the present invention has following characteristics and beneficial effect:
The combined support that the present invention is made up of bidirectional sliding support and universal horizontal elastic support, compares with existing bidirectional spring hinged-support, and bidirectional sliding support and universal horizontal elastic support all can realize the ability that first all directions in background technology are rotated; And realize by bidirectional sliding support the second point function that the vertical load that superstructure produces can be delivered to the structure of lower support structure that intermediate panel, polytetrafluoroethylene (PTFE) sphere slide plate, corrosion resistant plate, polytetrafluoroethylene (PTFE) plane slide plate and intermediate host have; Flat spring is replaced by the cantilever rod iron of the horizontal resiliency device of universal horizontal elastic support, cantilever rod iron lower end is connected to lower support plate, the head of cantilever rod iron contacts cave and contacts with indent, the horizontal loading of any direction that superstructure produces all is delivered to cantilever rod iron by indent contact cave, and be delivered to substructure by cantilever rod iron, realize third and fourth function.
The present invention is by designing the diameter of the cantilever rod iron of universal horizontal elastic support and highly realizing different spring rates, namely the bending rigidity of cantilever rod is regulated to realize different spring rates, because cantilever rod iron any level bending rigidity is equal, therefore combined isolator can be realized along any direction finite stiffness, the contact of cave and cantilever rod iron is contacted by the indent in upper bracket plate, part of horizontal power is all delivered to substructure by cantilever rod iron by the horizontal loading of any direction that superstructure produces, realize the function of the limited slip of upper bracket plate any direction, finally realize the function of universal horizontal elastomeric composition bearing.
Simple structure of the present invention, power transmission are clear and definite, completely eliminate the problem that existing bidirectional spring bearing may block, can be widely used in architectural bidirectional spring bearing and connect, and are particularly useful for being articulated and connected of roof structure and lower support structure in longspan structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
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 the fractionation schematic diagram of Fig. 4.
Fig. 6 is the structural representation of bidirectional sliding support.
Fig. 7 is the structural representation of universal horizontal elastic support.
Fig. 8 is the cross-sectional view of Fig. 7.
Fig. 9 be universal horizontal elastic support of the present invention stressed before state diagram.
Figure 10 is the deformation state figure of Fig. 9 universal horizontal elastic support after being subject to horizontal direction active force.
Figure 11 is the partial enlarged drawing at the indent contact cave place of universal horizontal elastic support.
Reference numeral: 1-upper bracket plate, 2-first corrosion resistant plate, 3-first polytetrafluoroethylene (PTFE) plane slide plate, 4-intermediate panel, 5-polytetrafluoroethylene (PTFE) sphere slide plate, 6-intermediate host, 7-second polytetrafluoroethylene (PTFE) plane slide plate, 8-second corrosion resistant plate, 9-lower support plate, 10-casing, 11-flat spring, 12-dust cover, 13-bolt, 14-the 3rd corrosion resistant plate, 15-superstructure, 16-substructure, 17-indent contact cave, 18-cantilever rod iron, 19-head, 20-bending resistance elastic cone body portion, 21-top spherical crown surface, the 22-sidepiece face of cylinder, 23-bidirectional sliding support, 24-sliding support connecting rod, 25-sliding support upper bracket plate, 26-sliding support corrosion resistant 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 plate.
Detailed description of the invention
Embodiment see shown in Fig. 4-5, a kind of universal horizontal elastomeric composition bearing, comprise be connected between superstructure 15 and substructure 16, at least one bidirectional sliding support 23 of being set up in parallel and at least one universal horizontal elastic support be set up in parallel.
Described in Fig. 6, described bidirectional sliding support 23 comprises the sliding support connecting rod 24, sliding support upper bracket plate 25, sliding support corrosion resistant plate 26, sliding support polytetrafluoroethylene (PTFE) plane slide plate 27, sliding support intermediate host 28, the spherical slide plate 29 of sliding support polytetrafluoroethylene (PTFE) and the sliding support lower support plate 30 that connect successively from top to bottom.
Shown in Fig. 7-11, described universal horizontal elastic support is by the upper bracket plate 1 be connected with superstructure 15, the lower support plate 9 be connected with substructure 16 and the horizontal resiliency device be provided with between upper bracket plate 1 and lower support plate 9 form, the downside surface of described upper bracket plate 1 has one group of indent contact cave 17 regularly arranged, described horizontal resiliency device is one group and contacts cave 17 cantilever rod iron 18 vertical one to one with indent, described cantilever rod iron forms by stretching into the bending resistance elastic cone body portion 20 be connected with on the downside of the indent contact head 19 in cave 17 and the center of head 19, the surrounding of described head 19 contacts the side wall ring in cave 17 to contact with indent, ensure that contact portion transmits horizontal force.The height of head is less than the height in indent contact cave 17, the top of head 19 is contacted with indent at the bottom of the cave in cave 17 and ensures to leave crashproof space, ensures that head does not bear the vertical force of superstructure.The external diameter at the top in described bending resistance elastic cone body portion 20 is less than the external diameter of head 19, and the sidewall also stretch within indent contact cave 17, contacting cave 17 with indent ensures to leave crashproof space, ensure that bending resistance elastic cone body portion 20 does not participate in transmitting horizontal force, the bottom in bending resistance elastic cone body portion 20 is fixedly connected with lower support plate 9.
Described indent contact cave is distributed in the downside surface of upper bracket plate.Also can companys of having groove between the downside surface of described upper bracket plate 1, adjacent two indents contact cave, the described groove depth connecting groove is less than head 19 and stretches into indent and contact the degree of depth within cave 17.
Shown in Figure 11, described indent contact cave 17, in inverted U, is divided into top spherical crown surface 21 and the sidepiece face of cylinder 22, the greatest circle diameter of top spherical crown surface and the cross circular section equal diameters on the sidepiece face of cylinder.Described head is spheroid, the diameter of head and the cross circular section equal diameters on the sidepiece face of cylinder, and described 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 of head.
In the present embodiment, upper bracket plate 1 and superstructure 15 are by bolt or be welded to connect, and lower support plate 9 and substructure 16 are by bolt or be welded to connect.Cantilever rod iron 2 welds with lower support plate 3.Described bidirectional sliding support 23 size is determined by bearing vertical load, and the number that arranges of universal horizontal elastic support is determined according to the support spring rigidity of designing requirement.
For certain engineering susceptor design process, concrete making of setting forth universal horizontal elastomeric composition bearing.
Certain Core Walls Structure top spring fastening global stiffness is k0=24000kN/m, arranges 6 horizontal slip bearings and 6 universal elastic supports according to Core Walls Structure headroom, and the horizontal spring rigidity of single universal elastic support is k1=4000kN/m.Horizontal slip bearing designs according to " spherical bearing for bridge " (GB/T17955-2009).Universal elastic support design is as follows, and installing overall height according to architectural space determination bearing is H=770mm, determines that in upper bracket plate, indent contacts the thickness a at the bottom of the cave in cave on the upside of plate body by structure
1=20mm, the height a in head and the crashproof space at the bottom of cave
2=10mm, the distance a of the downside of the supreme support plate of head end
3=30mm.Partial pressing and detailing requiments determination head ball diameter d between the sidewall contacting cave according to head with indent
3=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, and length and width are B=800mm, and meeting under the operating space prerequisite that cave opened by upper bracket plate, cantilever rod iron welds with lower support plate, rod iron spacing is S
2=150mm, rod iron center and support plate back gauge are S
1=100mm, rod iron quantity is n=25 root.
Susceptor design limit displacement value is 50mm, and rod iron material is Q460 building structural steel, according to the upper surface width d1=20mm of cantilever rod iron upper end cross section shear-carrying capacity and detailing requiments determination cantilever rod iron.The horizontal rigidity of single cantilever rod iron is k
i, according to the calculating principle k of spring rate parallel connection
1=nk
i,
.
If
, cantilever rod top displacement
, as P=1, then the shape constant of cantilever rod is
,
.
Therefore:
,
.
Conclusion: the contact structure that 1, head contacts cave with indent achieves horizontal force and effectively transmits.2, cantilever rod iron is circular rod iron, isotropism, and the horizontal rigidity of each level is equal, avoids butterfly spring excessive in non-principal direction spring rate, may occur the problems such as bearing draw-in groove.3, the present invention really achieves each to the spring rates such as level, not draw-in groove, rotating target.
Claims (6)
1. a universal horizontal elastomeric composition bearing, comprise be connected between superstructure (15) and substructure (16), at least one bidirectional sliding support (23) of being set up in parallel and at least one universal horizontal elastic support, described universal horizontal elastic support is made up of the upper bracket plate (1) be connected with superstructure (15), the lower support plate (9) be connected with substructure (16) and the horizontal resiliency device that is provided with between upper bracket plate (1) and lower support plate (9), it is characterized in that:
The downside surface of described upper bracket plate (1) has one group of indent contact cave (17) of regularly arranging, described horizontal resiliency device is one group and contacts cave (17) cantilever rod iron (18) vertical one to one with indent, the bending resistance elastic cone body portion (20) be connected with on the downside of the center of described cantilever rod iron by the head (19) and head (19) that stretch into indent contact cave (17) forms, the surrounding of described head (19) contacts the side wall ring in cave (17) to contact with indent, the height of head is less than the height of indent contact cave (17), the top of head (19) is contacted with indent at the bottom of the cave of cave (17) ensure to leave crashproof space, the external diameter at the top of described bending resistance elastic cone body portion (20) is less than the external diameter of head (19), and also stretch within indent contact cave (17), the sidewall contacting cave (17) with indent ensures to leave crashproof space, the bottom in bending resistance elastic cone body portion (20) is fixedly connected with lower support plate (9).
2. a kind of universal horizontal elastomeric composition bearing according to claim 1, is characterized in that: described indent contact cave is distributed in the downside surface of upper bracket plate.
3. a kind of universal horizontal elastomeric composition bearing according to claim 1, it is characterized in that: companys of having groove between the downside surface of described upper bracket plate (1), adjacent two indents contact cave, the described groove depth connecting groove is less than head (19) and stretches into indent and contact the degree of depth within cave (17).
4. a kind of universal horizontal elastomeric composition bearing according to claim 1 and 2, it is characterized in that: described indent contact cave (17) is in inverted U, be divided into top spherical crown surface (21) and the sidepiece face of cylinder (22), the greatest circle diameter of top spherical crown surface and the cross circular section equal diameters on the sidepiece face of cylinder.
5. a kind of universal horizontal elastomeric composition bearing according to claim 4, it is characterized in that: described head is spheroid, the diameter of head and the cross circular section equal diameters on the sidepiece face of cylinder, described 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 of head.
6. a kind of universal horizontal elastomeric composition bearing according to claim 1, is characterized in that: described bidirectional sliding support (23) comprises the sliding support connecting rod (24), sliding support upper bracket plate (25), sliding support corrosion resistant 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) and the sliding support lower support plate (30) that connect successively from top to bottom.
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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 CN105113635B (en) | 2018-01-23 |
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Cited By (5)
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| CN106758784A (en) * | 2017-03-10 | 2017-05-31 | 衢州学院 | A kind of Longspan Bridge vibration absorber |
| CN107059827A (en) * | 2017-04-28 | 2017-08-18 | 招商局重庆交通科研设计院有限公司 | A kind of floating rotating cylinder anticollision device, collision-prevention device |
| 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 |
| CN111677123A (en) * | 2020-05-21 | 2020-09-18 | 中建二局安装工程有限公司 | Hinged support reinforcing structure and construction method thereof |
| CN112982708A (en) * | 2021-02-23 | 2021-06-18 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111677123A (en) * | 2020-05-21 | 2020-09-18 | 中建二局安装工程有限公司 | Hinged support reinforcing structure and construction method thereof |
| 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 |
| CN112982708A (en) * | 2021-02-23 | 2021-06-18 | 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 |
| 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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