CN113463504A - Tensile support of bridge - Google Patents
Tensile support of bridge Download PDFInfo
- Publication number
- CN113463504A CN113463504A CN202110784800.7A CN202110784800A CN113463504A CN 113463504 A CN113463504 A CN 113463504A CN 202110784800 A CN202110784800 A CN 202110784800A CN 113463504 A CN113463504 A CN 113463504A
- Authority
- CN
- China
- Prior art keywords
- seat plate
- chute
- guiding
- bridge
- guide portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
Abstract
The embodiment of the application provides a tensile support of bridge, includes: the first seat plate is provided with a sliding groove, and first guide parts facing the sliding groove are respectively formed on two opposite sides of a notch of the sliding groove; a second seat plate, wherein a partial region of the second seat plate protrudes outwards to form two second guiding parts which are oppositely arranged on the outer surface of one end of the second seat plate; one end, provided with the two second guide parts, of the second seat plate is arranged in the sliding groove, and each second guide part is in line contact with the corresponding first guide part along the transverse bridge direction; a spherical crown body disposed within the chute, the spherical crown body being located between the first seat plate and the second seat plate and being slidable relative to the first seat plate and the second seat plate. The tensile support of the bridge of the embodiment of the application has better tensile and torsion resistance.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a tensile support of a bridge.
Background
With the development of social economy, the enthusiasm of building rail transit in some domestic two-line and three-line cities is continuously raised, but the subway can not be built due to the limitation of factors such as population, total production value and finance. Stride novel track traffic system such as a formula single track, Yunba, suspension type single track and receive favour in two, three-way city, these novel track traffic adopt the overhead laying mostly, have characteristics such as curve radius is little, the bridge section is little, live load proportion is big, lead to comparatively obvious space atress characteristic to appear in the bridge, and the pulling force often can appear in the support. The conventional common bridge support has the advantages of small volume, light weight, lower manufacturing cost, simple structure, perfect functions, adoption of a spherical friction pair and good vibration damping effect.
However, when the bridge support needs to resist the pulling force, the stress mode of the whole support needs to be changed, which requires the bridge support to have good tensile and torsional properties, so as to effectively release the longitudinal bending moment and the horizontal load to be released, thereby avoiding great difficulty in designing the bridge.
Disclosure of Invention
In view of the above, the present disclosure provides a tensile support with better tensile and torsional properties.
In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:
the embodiment of the application provides a tensile support of bridge, includes:
the first seat plate is provided with a sliding groove, and first guide parts facing the sliding groove are respectively formed on two opposite sides of a notch of the sliding groove;
a second seat plate, wherein a partial region of the second seat plate protrudes outwards to form two second guiding parts which are oppositely arranged on the outer surface of one end of the second seat plate; one end, provided with the two second guide parts, of the second seat plate is arranged in the sliding groove, and each second guide part is in line contact with the corresponding first guide part along the transverse bridge direction;
a spherical crown body disposed within the chute, the spherical crown body being located between the first seat plate and the second seat plate and being slidable relative to the first seat plate and the second seat plate.
In one embodiment, one of the first seat plate and the second seat plate is an upper seat plate, and the other of the first seat plate and the second seat plate is a lower seat plate.
In one embodiment, a contact surface of the first guide portion in line contact with the second guide portion is an outwardly convex strip-shaped arc surface, and a contact surface of the second guide portion in line contact with the first guide portion is a plane.
In one embodiment, a contact surface of the first guide portion in line contact with the second guide portion is a plane, and a contact surface of the second guide portion in line contact with the first guide portion is an outwardly convex strip-shaped arc surface.
In one embodiment, the tensile support further comprises two limiting plates, and the two limiting plates are respectively connected with the first seat plate and are oppositely arranged on the second seat plate along two sides in the bridge direction.
In one embodiment, the tensile support further comprises a first sliding friction pair and a second sliding friction pair, the first sliding friction pair being disposed between the first seat plate and the spherical crown body, the second sliding friction pair being disposed between the second seat plate and the spherical crown body.
In one embodiment, the first seat plate further includes a first chute wall and two second chute walls, the two second chute walls are respectively disposed at two opposite ends of the first chute wall along the transverse bridge direction, one end of each of the second chute walls, which is far away from the first chute wall, is respectively provided with one first guide portion, and the first chute wall, the two second chute walls and the two first guide portions together enclose the chute.
In one embodiment, each of the second chute walls is connected to the corresponding first guiding portion to form an L shape.
In one embodiment, the tensile support further includes two guiding friction pairs, and one guiding friction pair is disposed between each of the second chute walls and the second guiding portion.
In one embodiment, the tensile support further includes two guiding friction pairs, and one guiding friction pair is respectively disposed between the side wall of each first guiding portion facing the notch side and the second seat plate.
The embodiment of the application provides a tensile support of bridge, and this tensile support is including first bedplate, the second bedplate that has the spout and setting up the spherical crown body in the spout, that is to say this tensile support is the ball-type support. One end of the second seat plate, which is provided with two second guide parts, is arranged in the sliding groove, so that when the support bears tensile force, the interaction force generated between the second guide parts and the first guide parts can play a role in resisting the external tensile force. In addition, every second guide part respectively along horizontal bridge to with the first guide part line contact that corresponds, from this, the second bedplate can be along following the bridge to for first bedplate translation, and regard the contact line of line contact as the axis of rotation for first bedplate rotation to make bridge beam body be not influenced in the bridge of support department to displacement and rotation, resist the inside moment of torsion that produces of bridge with this, make the tensile support have better tensile and anti-torque performance.
Drawings
Fig. 1 is a front view of a tensile support of a bridge according to a first embodiment of the present application;
FIG. 2 is a structural view of the first seat plate of FIG. 1;
FIG. 3 is a schematic diagram of the first guide portion and the second guide portion in the direction along the bridge in FIG. 1;
FIG. 4 is a left side view of FIG. 1;
FIG. 5 is a structural view of a tension support of a bridge according to a second embodiment of the present application;
fig. 6 is a structural view of a tension support of a bridge according to a third embodiment of the present application.
Description of the reference numerals
A first seat plate 10; a chute 10 a; a first guide portion 11; a first chute wall 12; a second chute wall 13; a second seat plate 20; a second guide portion 21; a spherical cap body 30; a position limiting plate 40; a first sliding friction pair 50; a second sliding friction pair 60; and a guide friction pair 70.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the present application, the "transverse-to-bridge" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, and the "along-to-bridge" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 2. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.
Referring to fig. 1, the tensile support for a bridge includes a first seat plate 10 having a sliding slot 10a, a second seat plate 20, and a spherical cap body 30 disposed in the sliding slot 10a, wherein the spherical cap body 30 is located between the first seat plate 10 and the second seat plate 20 and can slide relative to the first seat plate 10 and the second seat plate 20. That is, the tensile support is a ball support, and when the support bears pressure, the pressure is borne by the first seat plate 10, the second seat plate 20 and the spherical cap body 30 as a whole and is transmitted to the pier connected with the tensile support. The first seat plate 10 is formed with first guide portions 11 facing the slide groove 10a at opposite sides of the notch of the slide groove 10a, respectively, that is, the slide groove 10a has one notch, and two first guide portions 11 are provided at intervals to form the notch.
A partial region of the second seat plate 20 is protruded outward to form two second guides 21 oppositely disposed at an outer surface of one end of the second seat plate 20. That is, the second seat plate 20 may be integrally formed, and the two second guides 21 are formed as a part of the second seat plate 20 and are symmetrically disposed about a central axis of the second seat plate 20. One end of the second seat plate 20 having two second guide portions 21 is disposed in the sliding groove 10a, the two second guide portions 21 correspond to the two first guide portions 11, and the other end of the second seat plate 20 is located outside the sliding groove 10 a. In addition, every second guide part 21 respectively along horizontal bridge to with the first guide part 11 line contact that corresponds, from this, second bedplate 20 can be along following the bridge to translating for first bedplate 10, and regard the contact line of line contact as the axis of rotation for first bedplate 10 rotation, thereby make bridge beam body be not influenced in the bridge of support department to displacement and rotation, when the support bears the pulling force, second guide part 21 and the mutual restraint of first guide part 11 and the interact who produces, can play the effect of resisting external pulling force, with this moment of torsion that resists the inside production of bridge, make the tensile support have better tensile and torsional property.
In one embodiment, referring to fig. 1, one of the first seat plate 10 and the second seat plate 20 is an upper seat plate, and the other of the first seat plate 10 and the second seat plate 20 is a lower seat plate, that is, the first seat plate 10 may be an upper seat plate, the second seat plate 20 may be a lower seat plate, the first seat plate 10 is at the top of the spherical crown body 30, and the second seat plate 20 is at the bottom of the spherical crown body 30, that is, the tensile support may be an upper limiting tensile support. The first seat plate 10 can be a lower seat plate, the second seat plate 20 can be an upper seat plate, the first seat plate 10 is arranged at the bottom of the spherical crown body 30, and the second seat plate 20 is arranged at the top of the spherical crown body 30, namely, the tensile support can be a lower limiting tensile support. Therefore, the type of the tensile support can be enriched so as to better adapt to the actual needs under different conditions.
In an embodiment, for the upper limiting tensile support, one side of the spherical cap body 30 slidably connected to the upper seat plate is a plane, one side of the spherical cap body 30 slidably connected to the lower seat plate is a spherical surface, that is, the upper seat plate and the spherical cap body 30 slide in a plane, and the spherical cap body 30 and the lower seat plate slide in a spherical surface.
It can be understood that, for the lower limiting tensile support, the upper seat plate and the spherical cap body 30 slide in a spherical manner, and the spherical cap body 30 and the lower seat plate slide in a plane manner.
In an embodiment, referring to fig. 2, the first seat plate 10 further has a first chute wall 12 and two second chute walls 13, the two second chute walls 13 are respectively disposed at two opposite ends of the first chute wall 12 along the transverse direction, and one end of each second chute wall 13 away from the first chute wall 12 is respectively provided with a first guiding portion 11, that is, one end of each second chute wall 13 is connected to the first chute wall 12, and the other end is connected to the first guiding portion 11, and the first chute wall 12, the two second chute walls 13 and the two first guiding portions 11 together define a chute 10a, so that one ends of the spherical cap 30 and the second seat plate 20 are placed in the chute 10 a.
In an embodiment, referring to fig. 1, the second chute walls 13 are respectively connected with the corresponding first guiding portions 11 and form an L shape together, so that the second guiding portions 21 can be in line contact with the first guiding portions 11 under the condition of tension to resist the tension of the bridge, and the axial stress performance of the L-shaped member is better.
In one embodiment, referring to fig. 3, a contact surface of the first guiding portion 11 in line contact with the second guiding portion 21 is an outwardly convex strip-shaped arc surface, where the outwardly convex contact surface means that the strip-shaped arc surface protrudes toward a side facing the second guiding portion 21, that is, the strip-shaped arc surface is on the first guiding portion 11.
The strip-shaped cambered surface can be a cambered surface with a larger radius so as to avoid the phenomenon of stress concentration easily occurring when the support is pulled due to undersize of the cambered surface.
The contact surface of the second guiding part 21 in line contact with the first guiding part 11 is a plane, that is, the contact surface on the second guiding part 21 is a plane, and the second guiding part 21 and the first guiding part 11 can rotate around the contact line in the bridge direction to meet the rotation requirement of the bridge body.
In one embodiment, the contact surface of the first guide portion 11 in line contact with the second guide portion 21 is a plane, that is, the contact surface on the first guide portion 11 is a plane. The contact surface of the second guide portion 21 in line contact with the first guide portion 11 is a strip-shaped arc surface protruding outward. That is, a strip-shaped arc surface may be provided on the second guide portion 21.
In an embodiment, referring to fig. 5, the tensile support further includes two limiting plates 40, the two limiting plates 40 are respectively connected to the first seat plate 10 and are oppositely disposed on two sides of the second seat plate 20 along the bridge direction, so as to limit the bridge body at the support along the bridge direction, and improve the stability of the bridge.
In some embodiments, referring to fig. 4, the tensile support may not be provided with the limiting plate 40, so that the tensile support can move along the bridge direction to meet the actual engineering requirements.
In an embodiment, referring to fig. 5, the two position-limiting plates 40 can be fixed on the first seat plate 10 by bolts.
In one embodiment, referring to fig. 1, the tensile support further includes a first sliding friction pair 50 and a second sliding friction pair 60 for better sliding between the components of the structure and reducing friction loss during sliding, the first sliding friction pair 50 is disposed between the first seat plate 10 and the spherical crown body 30, the second sliding friction pair 60 is disposed between the second seat plate 20 and the spherical crown body 30, both the first sliding friction pair 50 and the second sliding friction pair 60 may be a combination of a wear-resistant plate and a steel plate, the wear-resistant plate may be a polyethylene plate, a teflon plate, or the like, and the steel plate may be a stainless steel plate. In an embodiment, referring to fig. 1, the tensile support further includes two guiding friction pairs 70, and one guiding friction pair 70 is disposed between each second chute wall 13 and the second guiding portion 21, so that the sliding between the second chute walls 13 and the second guiding portions 21 is smoother, and the wear of the support is reduced, the guiding friction pairs 70 may be a combination of a wear-resistant plate and a steel plate, the wear-resistant plate may be a polyethylene plate, a teflon plate, or the like, and the steel plate may be a stainless steel plate.
In an embodiment, referring to fig. 1, the tensile support further includes two guiding friction pairs 70, and one guiding friction pair 70 is respectively disposed between the side wall of each first guiding portion 11 facing the side of the notch and the second seat plate 20, that is, the position of the guiding friction pair 70 may also be disposed between the second seat plate 20 at the notch and the first guiding portion 11.
In an embodiment, referring to fig. 1, when the tensile support is applied to a steel structure of a steel beam and a bridge pier, the tensile support may be connected to the steel beam and the bridge pier by bolts to stabilize the bridge structure.
In an embodiment, referring to fig. 6, when the tensile support is applied to a concrete structure of a concrete beam and a bridge pier, the tensile support may be connected to the concrete beam and the bridge pier through an anchor bolt, so that the structure is more stable and the force transfer of the bridge is smoother.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A tensile support of a bridge, comprising:
the first seat plate is provided with a sliding groove, and first guide parts facing the sliding groove are respectively formed on two opposite sides of a notch of the sliding groove;
a second seat plate, wherein a partial region of the second seat plate protrudes outwards to form two second guiding parts which are oppositely arranged on the outer surface of one end of the second seat plate; one end, provided with the two second guide parts, of the second seat plate is arranged in the sliding groove, and each second guide part is in line contact with the corresponding first guide part along the transverse bridge direction;
a spherical crown body disposed within the chute, the spherical crown body being located between the first seat plate and the second seat plate and being slidable relative to the first seat plate and the second seat plate.
2. The tension bracket as recited in claim 1, wherein one of said first seat plate and said second seat plate is an upper seat plate, and the other of said first seat plate and said second seat plate is a lower seat plate.
3. The tension holder as claimed in claim 1 or 2, wherein the contact surface of the first guide portion with the second guide portion is an outwardly convex strip-shaped arc surface, and the contact surface of the second guide portion with the first guide portion is a flat surface.
4. The tension support as claimed in claim 1 or 2, wherein the contact surface of the first guide portion with the second guide portion is a flat surface, and the contact surface of the second guide portion with the first guide portion is an outwardly convex strip-shaped arc surface.
5. The tensile support according to claim 1 or 2, further comprising two limiting plates, wherein the two limiting plates are respectively connected with the first seat plate and are oppositely arranged on two sides of the second seat plate along the bridge direction.
6. The tension bracket of claim 1 or 2, further comprising a first sliding friction pair disposed between the first seat plate and the spherical cap body and a second sliding friction pair disposed between the second seat plate and the spherical cap body.
7. The tension resistant support as claimed in claim 1 or 2, wherein the first seat plate further has a first chute wall and two second chute walls, the two second chute walls are respectively disposed at two opposite ends of the first chute wall along the transverse direction, one end of each of the second chute walls, which is far away from the first chute wall, is respectively provided with one of the first guiding portions, and the first chute wall, the two second chute walls and the two first guiding portions together enclose the chute.
8. The tension bracket as claimed in claim 7, wherein each of said second groove walls is connected to a corresponding one of said first guide portions and forms an L-shape together.
9. The tension holder as claimed in claim 7, further comprising two guiding friction pairs, one of the guiding friction pairs being disposed between each of the second chute walls and the second guiding portion.
10. The tension bracket as claimed in claim 7, further comprising two guiding friction pairs, wherein one guiding friction pair is disposed between the side wall of each first guiding portion facing the notch and the second seat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784800.7A CN113463504A (en) | 2021-07-12 | 2021-07-12 | Tensile support of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784800.7A CN113463504A (en) | 2021-07-12 | 2021-07-12 | Tensile support of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113463504A true CN113463504A (en) | 2021-10-01 |
Family
ID=77879883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110784800.7A Pending CN113463504A (en) | 2021-07-12 | 2021-07-12 | Tensile support of bridge |
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| Country | Link |
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| CN (1) | CN113463504A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643015B1 (en) * | 2006-04-24 | 2006-11-10 | 매크로드 주식회사 | A pot bearing for bridge of spherical type |
| CN203429794U (en) * | 2013-08-07 | 2014-02-12 | 中建五局土木工程有限公司 | Supporting member of bailey beam bearing truss |
| CN107700341A (en) * | 2017-10-12 | 2018-02-16 | 中铁第四勘察设计院集团有限公司 | A kind of bridge pad with antidumping function |
| CN110965646A (en) * | 2019-12-24 | 2020-04-07 | 衡水润鑫橡胶制品有限公司 | Tensile friction pendulum support |
| CN211171587U (en) * | 2019-11-08 | 2020-08-04 | 四川铁创科技有限公司 | Mountain region track bridge cylinder support |
| CN213204476U (en) * | 2020-08-31 | 2021-05-14 | 中国建筑西北设计研究院有限公司 | Self-adaptive support for small and medium span weak connection connecting bridge |
-
2021
- 2021-07-12 CN CN202110784800.7A patent/CN113463504A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643015B1 (en) * | 2006-04-24 | 2006-11-10 | 매크로드 주식회사 | A pot bearing for bridge of spherical type |
| CN203429794U (en) * | 2013-08-07 | 2014-02-12 | 中建五局土木工程有限公司 | Supporting member of bailey beam bearing truss |
| CN107700341A (en) * | 2017-10-12 | 2018-02-16 | 中铁第四勘察设计院集团有限公司 | A kind of bridge pad with antidumping function |
| CN211171587U (en) * | 2019-11-08 | 2020-08-04 | 四川铁创科技有限公司 | Mountain region track bridge cylinder support |
| CN110965646A (en) * | 2019-12-24 | 2020-04-07 | 衡水润鑫橡胶制品有限公司 | Tensile friction pendulum support |
| CN213204476U (en) * | 2020-08-31 | 2021-05-14 | 中国建筑西北设计研究院有限公司 | Self-adaptive support for small and medium span weak connection connecting bridge |
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Application publication date: 20211001 |