CN201695326U - Sliding lead core rubber support assembly - Google Patents
Sliding lead core rubber support assembly Download PDFInfo
- Publication number
- CN201695326U CN201695326U CN2010202219468U CN201020221946U CN201695326U CN 201695326 U CN201695326 U CN 201695326U CN 2010202219468 U CN2010202219468 U CN 2010202219468U CN 201020221946 U CN201020221946 U CN 201020221946U CN 201695326 U CN201695326 U CN 201695326U
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- China
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- steel plate
- rubber support
- lead core
- core rubber
- sliding
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Abstract
A sliding lead core rubber support assembly comprises a lead core rubber support body, upper and lower external connecting steel plates and a friction pair; the upper and the lower end surfaces of the lead core rubber support body are respectively connected with the upper and the lower external connecting steel plates through bolts and shearing keys; the upper part of the upper external connecting steel plate of the lead core rubber support assembly is further provided with a sliding steel plate which is used in a matched manner; when in work, the sliding steel plate is installed under a bridge beam body; one surface of the friction pair is installed on the external surface of the upper connecting steel plate while the other surface of the friction pair is installed on the external surface of the sliding steel plate; the sliding steel plate is directly pressed on and slidingly connected with the upper external connecting steel plate; the periphery of the bottom of the sliding steel plate is provided with a limit block for limiting the upper external connecting steel plate therein. The lead core rubber support assembly is featured with simple structure and convenient installation; the lead core rubber support assembly efficiently reduces initial rigidity of the lead core rubber support, reduces the additional horizontal force and additional bending force on a pier caused by static force, prolongs the service life of the bridge and reduces the production cost.
Description
Technical field
The utility model relates to a kind of bridge pad, particularly a kind of slip lead core rubber support component.
Background technology
Lead core rubber support is by laminated bondings such as rubber layer, steel plates and pour into the lead for retractable pencil rod therebetween and form.The damping that the lead for retractable pencil rod increases bearing absorbs energy, and steel plate improves the bearing vertical rigidity, makes it to support effectively bridge superstructure and fabric structure, and rubber layer is given distortion of bearing high resiliency and the function that resets and carry.Therefore, lead core rubber support had both had higher load, had bigger damping and big horizontal movement ability and reset function again, and it is a kind of supporting and damping device that consumes energy of integrating, and is widely used in bridge construction; Lead core rubber support can delay the bridge construction cycle when earthquake, significantly reduce the bridge superstructure acceleration, and the bridge force-bearing situation is greatly improved, thereby has good damping effect, is fit to very much be applied to the bridge construction of earthquake zone.At present, existing lead core rubber support is installed and is still had the following disadvantages: must couple together by connecting steel plate and stone bolt and bridge beam body and bridge pier when lead core rubber support is installed, it adapts to the flexible of bridge beam body and relies on the shear strain of rubber to finish fully, because the bridge beam body concrete structure is after pouring is good, a creep is arranged, the process of creeping and shrinking, for the long cast-in-place beam bridge of beam body, its contraction, the size of creeping is very big, like this, can produce two adverse influences, (1), lead core rubber support is produced along the very big initial deformation of beam body shrinkage direction, thereby must increase height during the design bearing, cause increasing cost; (2), because of lead core rubber support produces bigger permanent initial level displacement, can increase extra bigger flexural stress to bridge pier, if can not eliminate this influence, will increase considerably the bridge pier cost and will bring adverse effect bridge design.
The applicant has applied for and the utility model patent of authorizing " " lead core rubber support component that has friction pair " (notification number: CN201165635Y) " adopts the external surface that connects steel plate outside the lead for retractable pencil bearing that the scheme of friction pair is set, provide a kind of simple in structure, easy for installation, can eliminate because of the bridge beam body creep of concrete, creep and shrink the lead core rubber support component that has friction pair cause the bearing initial deformation, preferably resolve the problems referred to above that the lead for retractable pencil bearing exists.
But this utility model patent still has the following disadvantages: the sliding steel plate that connects under steel plate and the bridge beam body outside 1, needing bearing after the bridge contraction is finished substantially welds, and is cumbersome, sometimes also very difficult, increased mounting hardness; 2, after bridge beam body creep, the contraction of creeping are finished substantially, lead core rubber support and assembly thereof are being connected with bridge beam body admittedly after death, can not produce slip between the outer connection steel plate of lead core rubber support and the sliding steel plate, for some bridge, when extraneous variations in temperature causes that concrete contraction makes lead core rubber support generation shear strain, can make lead core rubber support that bridge pier is produced extra big moment of flexure, very unfavorable to design.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, install more conveniently, can effectively reduce the unfavorable factor that lead core rubber support brings bridge under the normal mode of occupation, to overcome the existing above-mentioned deficiency of prior art.
The technical solution of the utility model is: a kind of slip lead core rubber support component, comprise the lead core rubber support body, go up the outer steel plate that connects, outer down steel plate and the friction pair of connecting, described lead core rubber support body is by rubber layer, the laminated bonding of steel plate and pour into the lead for retractable pencil rod therebetween and form, on the lead core rubber support body, the lower surface is connected steel plate and outer down connection steel plate is connected outward with last respectively by screw and shear key, the outer top that connects steel plate of going up of described lead core rubber support component also has a matching used sliding steel plate, when installing and using, sliding steel plate is positioned at below the bridge beam body, a secondary face of friction pair is installed in the outer external surface that connects steel plate, the secondary face of another of friction pair is installed in the soffit of sliding steel plate, sliding steel plate is directly withheld to connect on the steel plate outside last and is slidingly connected with it, the periphery of sliding steel plate bottom surface is provided with limited block, and the inside casing that limited block forms will be gone up outer connection steel plate frame within it.
Its further technical scheme is: described limited block adopts welding or bolt connecting mode to fixedly connected with sliding steel plate.
Its further again technical scheme is: described limited block and sliding steel plate monoblock cast are integral.
Its further technical scheme be: described sliding steel plate is provided with in correspondence with each other assembly hole with the last outer steel plate that is connected.
Because the outer connection steel plate external surface of a kind of lead core rubber support component that slides of the utility model is provided with friction pair, so the advantage that still has a former utility model patent " lead core rubber support component that has friction pair " promptly: 1, can eliminate because of bridge beam body creep of concrete, the contraction of creeping and cause the bearing initial deformation; 2, lead core rubber support can not produce bigger initial level displacement, thereby can not increase extra bigger flexural stress to bridge pier; Has following beneficial effect in addition: 1, because the sliding steel plate of a kind of lead core rubber support component that slides of the utility model is directly withheld to connect on the steel plate outside last and is slidingly connected with it, sliding steel plate and bridge beam body are fixed, at the sliding steel plate periphery limited block is set, sliding steel plate can relative slip in the limited block restricted portion with last outer connect between the steel plate still, the displacement of lead core rubber support is increased, therefore can eliminate effectively because concrete creep and contraction etc. causes the construction Deformation of lead core rubber support, reduce additional horizontal force and additional bending moment that static(al) produces bridge pier, and when earthquake takes place, because the existence of limited block, can allow bearing generation shear strain again, guarantee its can be normally and the performance of safety subtract function of shock insulation.
2, on the other hand because can relative slip in the limited block restricted portion between sliding steel plate and the last outer connection steel plate, when creeping because of ambient temperature causes and shrink, bridge concrete can offset by sliding, and offset without the distortion of lead core rubber support self, can effectively be reduced in the adverse effect to bridge pier of lead core rubber support under the normal mode of occupation, prolong and use bridge life, reduce manufacturing cost.
3, because the slide assemblies of a kind of lead core rubber support component setting of sliding of the utility model does not need to weld at the scene, not only simplified the trouble of installing, improved efficiency of construction, also avoided having destroyed the preservative treatment that product performs in factory because of field Welding.
4, a kind of slip lead core rubber support component of the utility model is simple in structure, and sliding steel plate is provided with assembly hole, in the installation process, erection bolt is passed assembly hole sliding steel plate outer be connected steel plate and fix with last, is convenient to lift.And after the installation, lay down erection bolt, bearing and sliding steel plate are in no coupled situation, and be when needs are changed, very convenient.
Be further described below in conjunction with the technical characterictic of drawings and Examples a kind of lead core rubber support component that slides of the utility model.
Accompanying drawing is said Fig. 1～Fig. 3: a kind of slip lead core rubber support component structural representation of the utility model: Fig. 1-front view (removing limited block in front), Fig. 2-vertical view, Fig. 3-left view (office is cutd open); Fig. 4～Fig. 6: sliding steel plate structural representation: Fig. 4-upward view, Fig. 5-front view (office is cutd open), Fig. 6-left view (office is cutd open).
Among the figure: the down outer steel plate that connects of 1-, 2,21, the 22-limited block, 3-lead core rubber support body, the last outer connection steel plate of 4-, the 5-connecting bolt, 6-sliding steel plate, 7-friction pair, the secondary face of 71-friction pair, the secondary face of 72-friction pair, 8-assembly hole, 9-stone bolt, 10-shear key.
The specific embodiment
A kind of slip lead core rubber support component, as Fig. 1～shown in Figure 3, described slip lead core rubber support component comprises lead core rubber support body 3, go up the outer steel plate 4 that connects, outer down steel plate 1 and the friction pair 7 of connecting, described lead core rubber support body is by rubber layer, laminated bonding such as steel plate and pour into the lead for retractable pencil rod therebetween and form, on the lead core rubber support body 3, the lower surface is connected steel plate 4 and outer down connection steel plate 1 is connected outward with last respectively by screw and shear key 10, the outer top that connects steel plate of going up of described lead core rubber support component also has a matching used sliding steel plate 6, when installing and using, sliding steel plate 6 is positioned at below the bridge beam body, a secondary face 71 of friction pair 7 is installed in the outer external surface that connects steel plate 4, the secondary face 72 of another of friction pair 7 is installed in the soffit of sliding steel plate 6, sliding steel plate 6 directly withhold outside last connect on the steel plate 4 with outside be connected steel plate and be slidingly connected, the periphery of sliding steel plate 6 bottom surfaces be provided with the limited block 21 that is positioned at sliding steel plate the right and left and be positioned at the limited block 22 on both sides before and after the sliding steel plate (referring to Fig. 4～Fig. 6), limited block 21,22 inside casings that form will be gone up outer connection steel plate 4 frames within it.
Described limited block 21,22 adopts welding or bolt connecting mode to fixedly connected with sliding steel plate 6.
As a kind of conversion of the utility model embodiment, described limited block 21,22 also can be integral with sliding steel plate 6 monoblock casts.
Another conversion as the utility model embodiment, described sliding steel plate 6 and the last outer assembly hole 8 that can be provided with on the steel plate 4 in correspondence with each other that is connected, in the installation process, erection bolt is passed assembly hole sliding steel plate 6 is fixed with the last outer steel plate 4 that is connected, be convenient to lifting.
The shape of the sliding steel plate 6 of the utility model slip lead core rubber support component depends on the shape of neoprene bearing body, and is general consistent with the shape of neoprene bearing body, can be the square of Fig. 1～shown in Figure 6, and also can be is circle or oval.The foregoing description is one of preferable embodiment of a kind of lead core rubber support component that slides of the utility model; but its technical scheme is not restricted to the foregoing description, and the conversion of being done on the basis of all technical schemes in the application all belongs to the application's protection domain.The application's technical scheme is equally applicable to connect the slip lead core rubber support component that friction pair all is set on the steel plate outside upper and lower.
The installation and application of a kind of lead core rubber support component that slides of the utility model is as follows: pass assembly hole 8 with sliding steel plate 6 and the last outer steel plate 4 fixing assemblings that are connected with erection bolt earlier, the lead core rubber support component that assembles is lifted the job site, be installed between bridge beam body and the bridge pier, sliding steel plate 6 is positioned at below the bridge beam body, be connected and fixed with bridge pier by the following outer steel plate 1 that connects of stone bolt 9 lead core rubber support component, by the stone bolt on the sliding steel plate 69 sliding steel plate and bridge beam body are connected and fixed, unclamp the outer erection bolt that connects between steel plate 4 and the sliding steel plate 6 then, sliding steel plate 6 can be slided relatively with the last outer steel plate 4 that connects.
Claims (4)
1. slip lead core rubber support component, comprise lead core rubber support body (3), go up outer steel plate (4), following outer steel plate (1) and the friction pair (7) of connecting of connecting, described lead core rubber support body (3) is by laminated bonding such as rubber layer, steel plate and pour into the lead for retractable pencil rod therebetween and form, the upper and lower end face of lead core rubber support body by screw and shear key (10) respectively with last outer is connected steel plate (4) and down outer connection steel plate (1) be connected; It is characterized in that: the outer top that connects steel plate (4) of going up of described lead core rubber support component also has a matching used sliding steel plate (6), when installing and using, sliding steel plate (6) is positioned at below the bridge beam body, a secondary face (71) of friction pair (7) is installed in the outer external surface that connects steel plate (4), another secondary face (72) of friction pair (7) is installed in the soffit of sliding steel plate (6), sliding steel plate (6) is directly withheld to connect on the steel plate (4) outside last and is slidingly connected with it, the periphery of sliding steel plate (6) bottom surface is provided with limited block (2), and the inside casing that limited block forms will be gone up outer connection steel plate (4) frame within it.
2. a kind of slip lead core rubber support component according to claim 1 is characterized in that: described limited block (2) adopts welding or bolt connecting mode to fixedly connected with sliding steel plate (6).
3. a kind of slip lead core rubber support component according to claim 1 is characterized in that: described limited block (2) is integral with sliding steel plate (6) monoblock cast.
4. according to claim 1,2 or 3 described a kind of slip lead core rubber support components, it is characterized in that: described sliding steel plate (6) is provided with in correspondence with each other assembly hole (8) with the last outer steel plate (4) that is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219468U CN201695326U (en) | 2010-06-10 | 2010-06-10 | Sliding lead core rubber support assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219468U CN201695326U (en) | 2010-06-10 | 2010-06-10 | Sliding lead core rubber support assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695326U true CN201695326U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202219468U Expired - Fee Related CN201695326U (en) | 2010-06-10 | 2010-06-10 | Sliding lead core rubber support assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400439A (en) * | 2011-11-15 | 2012-04-04 | 东南大学 | Converter for multifunctional shock absorbing and isolating support |
| JP7338023B2 (en) | 2018-07-12 | 2023-09-04 | 日鉄エンジニアリング株式会社 | damping damper |
-
2010
- 2010-06-10 CN CN2010202219468U patent/CN201695326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400439A (en) * | 2011-11-15 | 2012-04-04 | 东南大学 | Converter for multifunctional shock absorbing and isolating support |
| JP7338023B2 (en) | 2018-07-12 | 2023-09-04 | 日鉄エンジニアリング株式会社 | damping damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180610 |