CN101429751B - Curved surface rotation support - Google Patents
Curved surface rotation support Download PDFInfo
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- CN101429751B CN101429751B CN2008100800745A CN200810080074A CN101429751B CN 101429751 B CN101429751 B CN 101429751B CN 2008100800745 A CN2008100800745 A CN 2008100800745A CN 200810080074 A CN200810080074 A CN 200810080074A CN 101429751 B CN101429751 B CN 101429751B
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Abstract
The invention belongs to the technical field of bridge engineering, and discloses a curved surface rotary support. The technical proposal of the curved surface rotary support comprises the following: the curved surface rotary support comprises an upper support plate and a lower support plate which are fixedly connected with a beam body and a pier respectively through connecting mechanisms; the top surface of the lower support plate is a convex curved surface, and the bottom surface of the upper support plate is a concave curved surface corresponding to the convex curved surface of the lower support plate; the convex curved surface of the lower support plate or the concave curved surface of the upper support plate is embedded with a tetrafluorated slide plate; and the rotation of the support is realized by the sliding between the tetrafluorated slide plate embedded in the curved surface of the upper support plate or lower support plate and the corresponding lower support plate or upper support plate. The technical proposal overcomes the defect of unreasonable structure in the prior curved surface rotary support.
Description
Technical field
The invention belongs to technical field of bridge engineering, relate in particular to a kind of curved surface rotary support with super high bearing capacity performance.
Background technology
Bearing is the load transfer device between bridge superstructure and substructure.Introduce by in the bearing of " bridge engineering " (Fan Lichu of People's Transportation Press chief editor) chapter 6 beam bridge, its effect is: the bearing reaction (comprising vertical force and horizontal force that dead load and mobile load cause) of 1. transmitting superstructure; 2. guaranteeing that structure under mobile load, variations in temperature, concrete shrinkage and factor effect such as creep certain deformation takes place, (is " bridge engineering " the 167th page of Fig. 2-6-1) so that the actual loading situation of upper and lower part structure meets the Static Calculation diagram of structure as shown in Figure 1.The bearing of beam bridge generally is divided into two kinds of fixed bearing and freely movable bearings by its function.Fixed bearing A shown in Fig. 1 left end allows the free rotating certain angle θ A of girder section, but can not move; Freely movable bearing B shown in Fig. 1 right-hand member not only allows the girder can free rotating certain angle θ B in supporting place, can move horizontally certain Ju Li ⊿ I again.Bearing is reduced to the strong point among Fig. 1, the beam body freely rotates around the strong point, bearing is a kind of device in actual applications, certain bulk is arranged, the beam body is to rotate around the center of rotation of bearing, that is to say that it is that to meet the Static Calculation of structure most graphic that the beam body rotates around the bearing center of rotation, is the most rational seat structure.
A kind of spherical bearing of bridge engineering field extensive use at present as shown in Figure 2, by constituting with the fixing upper bracket plate 21 of beam body 27, stainless steel slide plate 26, plane tetrafluoro slide plate 25, spherical crown liner plate 22, sphere tetrafluoro slide plate 24 with the fixing lower support plate 23 of bridge pier 28.This spherical bearing satisfies the needs of bearing corner by the slip between spherical crown liner plate 22 and the sphere tetrafluoro slide plate 24, therefore compares pot rubber bearing and has that rotary resistance is little, the design corner is big, rotate advantages such as flexible.But the shortcoming of this bearing maximum at first is not meet the graphic regulation of static(al) shown in Figure 1 in the design, and bearing can not effectively retrain inadequate natural endowment to the beam body; Secondly for remedying the needs that design defect satisfies beam body corner second slide plane must be set, be upper bracket plate 21, stainless steel slide plate 26, plane tetrafluoro slide plate 25 three parts among Fig. 2, this just makes the seat structure complexity too heavy, not only increases cost waste steel but also make troubles to construction and installation.Do concrete analysis below:
Being illustrated in figure 3 as the mechanical structure that Fig. 2 spherical bearing is installed to behind the bridge analyzes graphic, simplify by following mode according to bearing actual functional capability situation, bearing spherical crown liner plate 22 among Fig. 2 is combined into beam body system C with top and bridge beam body, sphere tetrafluoro slide plate 24 in the accompanying drawing 2 is combined as pier system D with lower part and Bridge Pier.The form of beam body system is rotating shaft as seen from Figure 3, the form of pier system is an axle bed, the beam body holds free state as rotating shaft in the space, rotating shaft position can not be completely fixed by axle bed, beam body rotational angle theta forms by rotation, obviously do not meet the graphic requirement of static(al) in the accompanying drawing 1, that is to say not meet the supposition of bridge being carried out mechanical calculation.Simultaneously because the influence of factors such as the structure of beam body, shape, the rotating shaft center of beam body rotation also not necessarily overlaps with the center of rotation of bearing, second slide plane must be set for this reason, to prevent that bearing local location stress is excessive bearing be damaged, and then influence the safety of bridge.
For second slide plane is set, be to explain like this in the product introduction of above-mentioned spherical bearing, when the heavy platform of the center of rotation and the center of rotation of superstructure (beam body) of spherical bearing. only need to take place between spherical crown liner plate and the sphere tetrafluoro slide plate slip and just can make the bearing rotation.But when spherical bearing does not overlap with both centers of rotation of superstructure (beam body), the rotation of bearing will be subjected to the constraint of fine strain of millet body. just must be provided with second slide plane this moment between upper bracket plate and plane tetrafluoro plate.As seen above-mentioned spherical bearing manufacturer has found the defective of self in practice, and manages to remedy, and does not just have the fundamentally root of problem of perception.
Comprehensive above the analysis, above-mentioned spherical bearing is owing to the defective in the design can't effectively retrain by the graphic horizontal force that the dead load and the mobile load of bridge superstructure are caused of the static(al) of Fig. 1, whether bridge superstructure is impacted also thus and have no way of finding out about it, increased bearing again and get cost because second slide plane must be set.
Summary of the invention
Purpose of the present invention just provides the graphic requirement of a kind of static(al) that meets Fig. 1 fully and the horizontal force that can cause the dead load and the mobile load of bridge superstructure retrains effectively, has that rotary resistance is little, the design corner is big, rotate curved surface rotary support flexibly
Realize that the technical scheme that above-mentioned purpose of the present invention adopted is:
A kind of curved surface rotary support, by with the beam body by the fixedly connected bottom surface of bindiny mechanism be the upper bracket plate of spherical crown or column type concavity curved surface, the end face of fixedlying connected by bindiny mechanism with bridge pier is for constituting with the corresponding column type of described concavity curved surface or the lower support plate of ball crown type convex curved surface; On described lower support plate convex curved surface or described upper bracket plate concavity curved surface, be inlaid with the tetrafluoro slide plate.In addition, its additional technical feature comprises:
---the sidepiece between described upper bracket plate and lower support plate is provided with first dust-proof seal ring;
---on described upper bracket plate concavity curved surface or the lower support plate convex curved surface be provided with the corresponding concavity curved surface or the corrosion resistant plate of convex curved surface shape;
---described upper bracket plate is divided into the dull and stereotyped and upper and lower two parts of seat board of upper bracket; Wherein said upper bracket dull and stereotyped with the beam body between fixedly connected by bindiny mechanism, at described upper bracket flat board with prop up between seat board and be fixed with plane stainless steel plate and plane tetrafluoro slide plate respectively;
---sidepiece dull and stereotyped at described upper bracket and a seat board is provided with second dust-proof seal ring;
---the perimeter sides of described upper bracket flat board is a warp architecture, and is provided with unidirectional slide control mechanism between sidepiece and seat board within it.
The function of a kind of curved surface rotary support provided by the present invention realizes and can be illustrated by Fig. 4 and Fig. 5: promptly Fig. 5 is graphic with the mechanical structure analysis of superstructure (beam body) for the curved surface rotary support that Fig. 4 made, simplify by following mode according to bearing actual functional capability situation, wherein upper bracket plate 41, sphere tetrafluoro slide plate 43 rotate with bridge beam body 44 and form beam body system E, and lower support plate 42 is formed pier system F with Bridge Pier 45 as the strong point.The form of beam body system is a rotor as seen from Figure 5, and the form of pier system is a stator, and beam body rotational angle theta is to form around pier system (stator) rotation by beam body system (rotor), meets the graphic regulation of static(al) in the accompanying drawing 1.Because lower support plate and pier are fixed to be one, the center of rotation of bearing is not moved about by firm being controlled on the permanent position, and bearing of the present invention can effectively be controlled the horizontal force that the dead load and the mobile load of bridge superstructure causes.Because the beam body will be minimum along the sphere slip resistance of above-mentioned center of rotation control, beam body center of rotation overlaps with bearing center of rotation of the present invention automatically, does not also just need to be provided with second slide plane; In addition, the present invention compared with prior art also has the following advantages:
Its two because this curved surface rotary support mainly is made up of upper bracket plate, curved surface tetrafluoro slide plate, lower support plate, by being embedded in the needs that the bearing corner is satisfied in sphere tetrafluoro slide plate on the upper bracket plate and the slip between the lower support plate.Need not to be provided with second slide plane, therefore have the simple and suitable characteristics of compact conformation; Its three, it is graphic that susceptor design meets the bridge Static Calculation fully, the horizontal force that bearing promptly can cause the dead load and the mobile load of beam body control effectively, and can adapt to the distortion of beam body again, and can not exert an influence to beam body motion; Its four, simplified bearing structure, alleviated bearing weight, reduced cost, made things convenient for construction, this also is the present invention's advantage the most intuitively; Its five, in the practical application, same bearing capacity rank fixed bearing, one-way support, multidirectional bearing lower support plate can be designed to a kind of size, are convenient to factory process, more convenient construction and installation, the phenomenon that can not produce setup error takes place.
Description of drawings
Fig. 1: be the graphic schematic diagram of simply supported beam static(al);
Fig. 2: be present applied spherical bearing structural representation;
Fig. 3: for schematic diagram is analyzed in the rotation of spherical bearing shown in Figure 2;
Fig. 4: be the structural representation of the spherical rotation bearing in the use provided by the present invention;
Fig. 5: for curved surface rotary support structure shown in Figure 4 is rotated the analysis schematic diagram;
Fig. 6: be the structural representation of first kind of spherical rotation bearing provided by the present invention;
Fig. 7: be the structural representation of second kind of spherical rotation bearing provided by the present invention;
Fig. 8: be the structural representation of the third spherical rotation bearing provided by the present invention.
The specific embodiment
Be described in further detail below in conjunction with the structure of accompanying drawing curved surface rotary support provided by the utility model.
Be illustrated in figure 6 as the structural representation of first kind of spherical rotation bearing provided by the invention.The structure of this spherical rotation bearing comprises can be by the fixing upper bracket plate 1 of anchor bolt 6 and bridge beam body and can be by anchor bolt 6 and the fixing lower support plate 5 of bridge pier, wherein the lower support plate end face is the convex spherical crown surface, and the bottom surface of upper bracket plate is and the concavity spherical interior surface of lower support plate convex spherical crown surface correspondence; Lower support plate convex spherical crown surface is provided with sphere stainless steel slide plate 3, is inlaid with the sphere tetrafluoro slide plate 2 corresponding with sphere stainless steel slide plate on upper bracket plate concavity spherical interior surface.Above-mentioned tetrafluoro slide plate and the slip between the corresponding sphere stainless steel slide plate realize the needs of bearing corner; For preventing that the slide plane that sphere tetrafluoro slide plate 2 and sphere stainless steel slide plate 3 are formed is subjected to effect of dust, the sidepiece between upper bracket plate and lower support plate is provided with first dust-proof seal ring 4.In the said structure, upper bracket plate 1 and lower support plate 5 materials can adopt steel plate, cast steel or forged steel; Sphere tetrafluoro slide plate 2 materials adopt the macromolecule sliding material of tetrafluoro plate or same function; Sphere stainless steel slide plate 3 materials adopt hard chrome plating on corrosion resistant plate or the basal plane; First dust-proof seal ring 4 adopts elastomeric material; Anchor bolt 6 adopts standard component.
Be illustrated in figure 7 as the structural representation of second kind of spherical rotation bearing provided by the invention.This spherical rotation bearing is a bi-directional movable type spherical rotation bearing, and its structure is to increase a slide plane and constitute on the basis of first kind of spherical rotation bearing shown in Figure 6, to adapt to bridge because the in-plane displancement that variations such as temperature produce.The function of this slide plane and effect are function and the effects that is different from second slide plane among Fig. 2 fully.Its structure is composed as follows: the upper bracket plate of first kind of spherical rotation bearing shown in Figure 6 is divided into upper bracket dull and stereotyped 9 and seat board 13 upper and lower two parts; Fixedly connected by bindiny mechanism's anchor bolt 6 between wherein said upper bracket dull and stereotyped 9 and beam body, be fixed with plane stainless steel slide plate 7 and plane tetrafluoro slide plate 8 composition displacement slide planes respectively at a upper bracket dull and stereotyped 9 and a seat board 13, sidepiece dull and stereotyped at upper bracket simultaneously and a seat board is provided with second dust-proof seal ring 10, is subjected to effect of dust to prevent the slide plane that plane tetrafluoro slide plate 8 and plane stainless steel slide plate 7 are formed.Dull and stereotyped 9 materials of upper bracket can adopt steel plate, cast steel or forged steel; Plane tetrafluoro slide plate 8 materials adopt the macromolecule sliding material of tetrafluoro plate or same function; Plane stainless steel slide plate 7 materials adopt corrosion resistant plate, and dust-proof seal ring 10 adopts rubber.
Be illustrated in figure 8 as the structural representation of the third spherical rotation bearing provided by the invention.This spherical rotation bearing is unidirectional active type spherical rotation bearing.
Unidirectional active type spherical rotation bearing is provided with folk prescription and forms to the guiding device on the basis of bi-directional movable bearing as shown in Figure 7, as shown in Figure 8, bearing can only be subjected to displacement along a direction, and another direction can not have displacement.Its implementation is as follows: the perimeter sides of upper bracket flat board 9 is a warp architecture, and sidepiece is provided with slide block 11 within it, this guide runner is stuck in the guide chute 12 that is arranged at upper bracket plate sidepiece, upper bracket plate 1 has just limited the displacement of upper bracket flat board 9 at transverse direction like this, makes the bearing can only be along the displacement of guide chute direction.The function of other component and material are equal to bi-directional movable type curved surface rotary support.
In the structure of above-mentioned Fig. 4, Fig. 6, Fig. 7 and spherical rotation bearing shown in Figure 8, concavity curved surface and convex curved surface not only can be spherical crowns/lack the shape curved surface, and ring can be a column-shape curved surface.Concavity curved surface and convex curved surface are spherical crown/lack shape curved surfaces among above-mentioned three embodiment, and when concavity curved surface and convex curved surface were column-shape curved surface, promptly Dui Ying tetrafluoro slide plate and corrosion resistant plate were similarly the column-shape curved surface structure.Promptly the rotating stand of this structure can reach purpose of the present invention equally.
In the structure of above-mentioned Fig. 4, Fig. 6, Fig. 7 and spherical rotation bearing shown in Figure 8, the tetrafluoro slide plate both can be fixed on the concavity spherical interior surface of upper bracket plate, be used to realize the slide plane of bearing corner function with the sphere stainless steel slide plate 3 that is provided with on the lower support plate convex spherical crown surface, the sphere tetrafluoro slide plate of above-mentioned stainless steel slide plate correspondence is switched the position simultaneously---and the stainless steel slide plate is arranged on the concavity spherical interior surface of upper bracket plate, can realizes bearing corner function equally with the slide plane that the tetrafluoro slide plate that is embedded on the lower support plate convex spherical crown surface constitutes.
Claims (6)
1. curved surface rotary support is characterized in that: by with the beam body by the fixedly connected bottom surface of bindiny mechanism be the upper bracket plate of spherical crown or column type concavity curved surface, the end face of fixedlying connected by bindiny mechanism with bridge pier is for constituting with the corresponding column type of described concavity curved surface or the lower support plate of ball crown type convex curved surface; On described lower support plate convex curved surface or described upper bracket plate concavity curved surface, be inlaid with the tetrafluoro slide plate.
2. a kind of curved surface rotary support according to claim 1 is characterized in that: the sidepiece between described upper bracket plate and lower support plate is provided with first dust-proof seal ring.
3. a kind of curved surface rotary support according to claim 1 is characterized in that: on described upper bracket plate concavity curved surface or the lower support plate convex curved surface be provided with the corresponding concavity curved surface or the corrosion resistant plate of convex curved surface shape.
4. according to claim 1 or 3 described a kind of curved surface rotary support, it is characterized in that: described upper bracket plate is divided into the dull and stereotyped and upper and lower two parts of seat board of upper bracket; Wherein said upper bracket dull and stereotyped with the beam body between fixedly connected by bindiny mechanism, at described upper bracket flat board with prop up between seat board and be fixed with plane stainless steel plate and plane tetrafluoro slide plate respectively.
5. a kind of curved surface rotary support according to claim 4 is characterized in that: sidepiece dull and stereotyped at described upper bracket and a seat board is provided with second dust-proof seal ring.
6. a kind of curved surface rotary support according to claim 4 is characterized in that: the perimeter sides of described upper bracket flat board is a warp architecture, and is provided with unidirectional slide control mechanism between sidepiece and seat board within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100800745A CN101429751B (en) | 2008-12-07 | 2008-12-07 | Curved surface rotation support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100800745A CN101429751B (en) | 2008-12-07 | 2008-12-07 | Curved surface rotation support |
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| Publication Number | Publication Date |
|---|---|
| CN101429751A CN101429751A (en) | 2009-05-13 |
| CN101429751B true CN101429751B (en) | 2011-01-19 |
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| CN2008100800745A Active CN101429751B (en) | 2008-12-07 | 2008-12-07 | Curved surface rotation support |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205926A (en) * | 2013-04-14 | 2013-07-17 | 张保忠 | Bridge bearing device for isolating earthquakes |
| CN103205928A (en) * | 2013-04-24 | 2013-07-17 | 张保忠 | Anti-drawing curved surface rotatable support seat |
| CN104963281B (en) * | 2015-05-08 | 2016-08-17 | 武汉海润工程设备有限公司 | A kind of aluminium alloy spherical crown for bridge pad |
| CN107881904A (en) * | 2017-11-17 | 2018-04-06 | 衡水中铁建工程橡胶有限责任公司 | A kind of novel bridge bearing |
| CN108532451A (en) * | 2018-06-06 | 2018-09-14 | 安徽尚德科技有限公司 | A kind of V-type slideway pot rubber bearing |
| CN109267483A (en) * | 2018-11-22 | 2019-01-25 | 四川农业大学 | A kind of novel main cable saddle device of suspension bridge |
| CN112554047A (en) * | 2020-12-25 | 2021-03-26 | 尚德建设集团有限公司 | Bridge ultra-thin steel support |
| CN115354568A (en) * | 2022-09-26 | 2022-11-18 | 株洲时代新材料科技股份有限公司 | Unidirectional horizontal rigidity anti-seismic support |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201343700Y (en) * | 2008-12-07 | 2009-11-11 | 衡水中铁建工程橡胶有限责任公司 | Rotating supporting seat with curved surface |
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- 2008-12-07 CN CN2008100800745A patent/CN101429751B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201343700Y (en) * | 2008-12-07 | 2009-11-11 | 衡水中铁建工程橡胶有限责任公司 | Rotating supporting seat with curved surface |
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| CN101429751A (en) | 2009-05-13 |
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Owner name: ZHONGTIEJIAN ENGNIEERING RUBBER CO., LTD., HENGSHU Free format text: FORMER OWNER: GUO YONG Effective date: 20101129 |
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Free format text: CORRECT: ADDRESS; FROM: 053000 ZHONGTIEJIAN ENGINEERING RUBBER CO., LTD., NO.2469, SHENGLI WEST ROAD, NEW + HIGH TECHNOLOGY INDUSTRIAL PARK, HENGSHUI CITY, HEBEI PROVINCE TO: 053000 NO.1, XIANGSU ROAD, NORTH INDUSTRY BASE, TAOCHENG DISTRICT, HENGSHUI CITY, HEBEI PROVINCE |
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Effective date of registration: 20101129 Address after: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Applicant after: Hengshui Zhongtiejian Engnieering Rubber Co., Ltd. Address before: Victory road 053000 Hebei province Hengshui high tech Industrial Park, No. 2469 in the railway construction engineering rubber company Applicant before: Guo Yong |
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Address after: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Patentee after: Zhongyu Tiexin Transportation Technology Co.,Ltd. Address before: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Patentee before: HENGSHUI ZHONGTIEJIAN ENGNIEERING RUBBER Co.,Ltd. |
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