CN110700087A - Bridge expansion device - Google Patents
Bridge expansion device Download PDFInfo
- Publication number
- CN110700087A CN110700087A CN201910959724.1A CN201910959724A CN110700087A CN 110700087 A CN110700087 A CN 110700087A CN 201910959724 A CN201910959724 A CN 201910959724A CN 110700087 A CN110700087 A CN 110700087A
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- box
- expansion device
- cover plate
- bridge expansion
- plate
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- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
-
- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge expansion device which comprises a first boundary beam, a second boundary beam, a connecting block and a cover plate, wherein a middle beam assembly is arranged between the first boundary beam and the second boundary beam, the middle beam assembly comprises a plurality of middle beams which are sequentially arranged between the first boundary beam and the second boundary beam in parallel, and sealing strips are arranged between the boundary beam and the adjacent middle beam and between the adjacent two middle beams. The connecting block butt is kept away from one side of second boundary beam in first boundary beam. The cover plate is abutted to one side, away from the second boundary beam, of the first boundary beam, the connecting block is located on the lower side of the cover plate, and the connecting block is connected with the cover plate through the shear connector. The support beam is used for supporting the middle beam. When the earthquake happens, the device can avoid damage of excessive parts.
Description
Technical Field
The invention belongs to the technical field of bridge structures, and particularly relates to a bridge expansion device.
Background
The bridge expansion device is to meet the requirement of bridge deck deformation, and the expansion device is usually arranged between two beam ends, between the beam end and a bridge abutment or at the hinged position of a bridge. Patent No. ZL 200820039362.1, a modulus formula bridge telescoping device is disclosed, it can be seen from the figure, the boundary beam welds in the displacement control case, and well roof beam welds in a supporting beam, when meetting the earthquake, bridge telescoping device's deflection can be very big, the device is through connected mode such as welding, can lead to boundary beam, well roof beam, displacement control case and supporting beam etc. all impaired, be unfavorable for used repeatedly, and spare part receives the extrusion can lead to warping the uplift, the impaired serious of bridge ground.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bridge expansion device which can avoid damage of excessive parts when an earthquake occurs.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a bridge telescoping device, includes first boundary beam, second boundary beam, connecting block and apron, disposes well roof beam subassembly between first boundary beam and the second boundary beam, and well roof beam subassembly includes parallel arrangement in proper order in a plurality of well roof beams between first boundary beam and second boundary beam, disposes the sealing strip between boundary beam and the adjacent well roof beam, between the adjacent two well roof beams. The connecting block butt is kept away from one side of second boundary beam in first boundary beam. The cover plate is abutted to one side, away from the second boundary beam, of the first boundary beam, the connecting block is located on the lower side of the cover plate, and the connecting block is connected with the cover plate through the shear connector. The support beam is used for supporting the middle beam.
In one embodiment of the invention, a safe box is arranged on the lower side of the first side beam, a seismic isolation and reduction supporting box is arranged on the safe box, and the seismic isolation and reduction supporting box is connected with the safe box through a shear connector; the lower side of the second side beam is provided with a fixed support box, one end of the support beam is arranged in the shock absorption and isolation support box, and the other end of the support beam is arranged in the fixed support box.
In an embodiment of the invention, the first side beam includes a first mounting head, a supporting block and a bottom plate, which are connected in sequence, the first mounting head is disposed on the upper side of the bottom plate, the first mounting head and the bottom plate are fixedly connected through the supporting block, the first mounting head is located on one side of the supporting block, the bottom plate is located on the other side of the supporting block, and the first mounting head is configured with a first slot along the length direction thereof.
The second mounting heads are symmetrically arranged on two sides of the middle beam, the second mounting heads are provided with second slot parts along the length direction of the second mounting heads, and the sealing strips are arranged between the first slot parts and the second slot parts.
In an embodiment of the invention, the connecting block abuts against the bottom plate, and one end of the cover plate abuts against the first mounting head; the lower surface of the other end of the cover plate is provided with a wedge-shaped head towards the edge.
In an embodiment of the invention, the cover plate is connected with the fuse box through a shear connector.
In an embodiment of the invention, the middle beam comprises a middle plate and a bottom connecting plate, and the second mounting head and the bottom connecting plate are fixedly connected through the middle plate; the centre sill further comprises an annular sleeve portion, and the annular sleeve portion is detachably connected to the lower surface of the bottom connecting plate.
In an embodiment of the present invention, the second side beam and the first side beam are symmetrically disposed.
In an embodiment of the invention, a distance extending along the length direction of the supporting beam is configured between the supporting beam and the shock absorption and isolation supporting box, between the supporting beam and the fixed supporting box, between the connecting block and the safe box, and between the shock absorption and isolation supporting box and the safe box.
In an embodiment of the present invention, the shear connector comprises a bolt or a pin.
The technical scheme of the invention has the following beneficial effects:
the cover plate, the first boundary beam and the connecting block are separated but not integrally formed, so that the cover plate, the first boundary beam and the connecting block can be separated, when the first boundary beam and the second boundary beam are extruded mutually in case of an earthquake, shear-resistant connecting pieces between two jie blocks and the cover plate are sheared, the first boundary beam drives the connecting block to move to the fuse box, the cover plate is separated from the first boundary beam and slides to the road surface, and therefore the road surface of a bridge is prevented from being damaged, and meanwhile, under the action of the earthquake, the device can reduce the damage of parts to the greatest extent as possible, and is easy to recover for use after the earthquake.
Drawings
Fig. 1 is a schematic view of a maximally opened state according to an embodiment of the present disclosure.
Fig. 2 is a schematic view of a state of maximum closure according to an embodiment of the disclosure.
Fig. 3 is a schematic structural view of a first edge beam in an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a center sill in an embodiment of the present disclosure.
In the drawings:
11-a first side beam, 111-a first mounting head, 112-a support block, 113-a bottom plate, 114-a first groove part, 12-a second side beam, 21-a middle beam, 211-a second mounting head, 212-a middle plate, 213-a bottom connecting plate, 214-an annular sleeve part, 215-a second groove part, 22-a sealing strip, 31-a connecting block, 32-a cover plate, 321-a wedge-shaped head part, 33-a shear connector, 34-a support beam, 41-a safety box, 42-an earthquake reduction and isolation support box, 43-a fixed support box, 51-an asphalt pavement and 52-concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 4, the present invention provides a bridge expansion device, which includes a first edge beam 11, a second edge beam 12, a connecting block 31 and a cover plate 32, wherein a center beam 21 assembly is disposed between the first edge beam 11 and the second edge beam 12, the center beam 21 assembly includes a plurality of center beams 21 sequentially arranged in parallel between the first edge beam 11 and the second edge beam 12, and sealing strips 22 are disposed between the edge beam and the adjacent center beam 21 and between the adjacent two center beams 21. The connecting piece 31 abuts against the side of the first edge beam 11 remote from the second edge beam 12. The cover plate 32 abuts against one side of the first side beam 11 away from the second side beam 12, the connecting block 31 is located at the lower side of the cover plate 32, and the connecting block 31 and the cover plate 32 are connected through the shear connectors 33. The support beam 34 is used to support the center sill 21.
The shear connectors 33 include bolts or pins, and the shear connectors 33 may be replaced with welded connections.
It should be noted that, the cover plate 32, the first side beam 11, and the connecting block 31 are separated from each other rather than integrally formed, so as to be separable, when an earthquake occurs, the first side beam 11 and the second side beam 12 are pressed against each other, the shear connectors 33 between the two side beams and the cover plate 32 are cut off, the first side beam 11 drives the connecting block 31 to move towards the fuse box 41, and the cover plate 32 is separated from the first side beam 11 and slides to the road surface, so as to avoid the damage of the bridge road surface, and simultaneously, under the action of the earthquake, the device can reduce the damage of parts to the greatest extent possible, so that the device is easy to recover to use after the earthquake.
In order to further improve the seismic isolation and reduction capability of the device, in an embodiment of the invention, a safe box 41 is arranged on the lower side of the first side beam 11, a seismic isolation and reduction support box 42 is arranged on the safe box 41, and the seismic isolation and reduction support box 42 is connected with the safe box 41 through a shear connector 33; a fixed support box 43 is disposed under the second side beam 12, one end of the support beam 34 is disposed in the seismic isolation support box 42, and the other end of the support beam 34 is disposed in the fixed support box 43.
In an embodiment of the present invention, the first side rail 11 includes a first mounting head 111, a supporting block 112 and a bottom plate 113 connected in sequence, the first mounting head 111 is disposed on the upper side of the bottom plate 113, the first mounting head 111 and the bottom plate 113 are fixedly connected by the supporting block 112, the first mounting head 111 is located on one side of the supporting block 112, the bottom plate 113 is located on the other side of the supporting block 112, and a first slot 114 is disposed on the first mounting head 111 along the length direction thereof. The first side beam 11 is designed in such a shape, and is an innovative structure to meet the abutting of the cover plate 32 and the connecting block 31, so as to achieve the functions of connection and separation.
The second mounting heads 211 are symmetrically disposed on both sides of the center sill 21, the second mounting heads 211 are disposed with the second slot portions 215 along the longitudinal direction thereof, and the weatherstrip 22 is disposed between the first slot portion 114 and the second slot portion 215. The connection is convenient and reliable. And the sealing strip 22 is made of rubber 22.
In the embodiment, the connecting block 31 abuts against the bottom plate 113, and one end of the cover plate 32 abuts against the first mounting head 111; the lower surface of the other end of the cover plate 32 is provided with a wedge-shaped head 321 towards the edge. The wedge-shaped head 321 can fall off from the surface of the bridge floor when an earthquake occurs, so that the bridge floor is prevented from being damaged too much.
In the present embodiment, the cover plate 32 is connected to the fuse box 41 by the shear connector 33.
In the present embodiment, the center sill 21 includes the middle plate 212 and the bottom connection plate 213, and the second mounting head 211 and the bottom connection plate 213 are fixedly connected by the middle plate 212; the center sill 21 further includes an annular collar portion 214, and the annular collar portion 214 is detachably attached to a lower surface of the bottom connecting plate 213.
In this embodiment, the second edge beam 12 and the first edge beam 11 are symmetrically arranged, and the second edge beam 12 and the first edge beam 11 have the same structure, so that the sealing strip 22 can be conveniently connected.
In the present embodiment, a distance extending in the longitudinal direction of the support beam 34 is provided between the support beam 34 and the seismic isolation support box 42, between the support beam 34 and the fixed support box 43, between the connection block 31 and the safe box 41, and between the seismic isolation support box 42 and the safe box 41. Meanwhile, spaces are reserved between the two sides of the support beam 34 and the seismic isolation and reduction support beam 34 and between the two sides of the support beam 34 and the fixed support box 43. Under the action of a small-magnitude earthquake, the supporting beam 34 can not only have the displacement requirement of extending the length direction of the supporting beam 34 between the seismic isolation supporting box 42 and the fixed supporting box 43, but also can meet the multi-directional displacement requirement of the supporting beam, when a large-magnitude earthquake occurs, the shear connector 33 can be cut off, at the moment, the displacement can be generated between the seismic isolation supporting box 42 and the safety box 41, and the requirement of larger displacement change is met.
It should be noted that concrete 52 is poured between the safe box 41, the outside of the fixed supporting box 43 and the asphalt pavement 51, and in order to improve the strength of the concrete 52, reinforced concrete 52 can be used.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A bridge expansion device is characterized by comprising:
the middle beam assembly comprises a plurality of middle beams which are sequentially arranged between the first edge beam and the second edge beam in parallel, and sealing strips are arranged between the edge beam and the adjacent middle beam and between the two adjacent middle beams;
the connecting block is abutted against one side, far away from the second edge beam, of the first edge beam;
the cover plate is abutted against one side, away from the second edge beam, of the first edge beam, the connecting block is located on the lower side of the cover plate, and the connecting block is connected with the cover plate through a shear-resistant connecting piece; and
and the support beam is used for supporting the center sill.
2. The bridge expansion device of claim 1, wherein a safe box is arranged under the first side beam, a seismic isolation supporting box is arranged on the safe box, and the seismic isolation supporting box is connected with the safe box through a shear connector; the lower side of the second side beam is provided with a fixed support box, one end of the support beam is arranged in the shock absorption and isolation support box, and the other end of the support beam is arranged in the fixed support box.
3. The bridge expansion device of claim 1, wherein the first side beam comprises a first mounting head, a supporting block and a bottom plate connected in sequence, the first mounting head is disposed on the upper side of the bottom plate, the first mounting head and the bottom plate are fixedly connected through the supporting block, the first mounting head is disposed on one side of the supporting block, the bottom plate is disposed on the other side of the supporting block, and the first mounting head is disposed with a first slot along the length direction thereof;
the middle beam is symmetrically provided with second mounting heads at two sides, the second mounting heads are provided with second slot parts along the length direction of the second mounting heads, and the sealing strip is arranged between the first slot part and the second slot part.
4. The bridge expansion device of claim 3, wherein the connecting block abuts against the bottom plate, and one end of the cover plate abuts against the first mounting head; the lower surface of the other end of the cover plate is provided with a wedge-shaped head towards the edge.
5. The bridge expansion device of claim 2, wherein the cover plate is connected to the fuse box by a shear connector.
6. The bridge expansion device of claim 3, wherein the center sill comprises a middle plate and a bottom connecting plate, the second mounting head and the bottom connecting plate being fixedly connected by the middle plate; the center sill further comprises an annular sleeve portion which is detachably connected to the lower surface of the bottom connecting plate.
7. The bridge expansion device of claim 3, wherein said second edge beam is symmetrically disposed with respect to said first edge beam.
8. The bridge expansion device of claim 2, wherein a distance along the length direction of the support beam is provided between the support beam and the seismic isolation support box, between the support beam and the fixed support box, between the connection block and the safe box, and between the seismic isolation support box and the safe box.
9. A bridge expansion device according to claim 1, wherein the shear connectors comprise bolts or pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910959724.1A CN110700087A (en) | 2019-10-10 | 2019-10-10 | Bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910959724.1A CN110700087A (en) | 2019-10-10 | 2019-10-10 | Bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700087A true CN110700087A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910959724.1A Pending CN110700087A (en) | 2019-10-10 | 2019-10-10 | Bridge expansion device |
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| Country | Link |
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| CN (1) | CN110700087A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676811A (en) * | 2020-05-26 | 2020-09-18 | 尉氏县通达公路养护工程有限公司 | Bridge expansion joint device |
| CN112962441A (en) * | 2021-01-28 | 2021-06-15 | 中铁第一勘察设计院集团有限公司 | Self-resetting modular fast-assembly modular expansion device |
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| CN2057427U (en) * | 1989-06-09 | 1990-05-23 | 襄樊市汉江公路桥工程指挥部 | Tumbler auto-controlled device for bridge expansion joints |
| CN2221050Y (en) * | 1995-04-25 | 1996-02-28 | 衡水橡胶股份有限公司 | Bridge extension seem device |
| CN2505512Y (en) * | 2001-10-12 | 2002-08-14 | 陈光和 | Shallow slot bridge expansion device |
| US20080148499A1 (en) * | 2006-12-13 | 2008-06-26 | Construction Research & Technology Gmbh | Expansion joint system |
| CN201567527U (en) * | 2009-11-27 | 2010-09-01 | 成都市虹筑路桥机械有限公司 | Double-joint super-shallow buried profile steel bridge expansion device |
| KR101317953B1 (en) * | 2013-01-02 | 2013-10-18 | 진형건설(주) | Divided modular joint |
| CN203807941U (en) * | 2014-05-19 | 2014-09-03 | 衡水宝力工程橡胶有限公司 | Modular extensible device capable of being replaced quickly |
| CN205387667U (en) * | 2016-03-05 | 2016-07-20 | 孙艳青 | Double slit formula bridge rubber expansion joint device |
| CN207727423U (en) * | 2018-01-15 | 2018-08-14 | 长沙理工大学 | A kind of replaceable shallow embedding modulus bridge expansion device |
| CN208151855U (en) * | 2018-05-10 | 2018-11-27 | 成都市新铁路桥工程有限公司 | A kind of antifatigue changeable type modular expansion device |
| CN208183525U (en) * | 2017-12-26 | 2018-12-04 | 王明明 | A kind of hydraulic combined type bridge extension joint |
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2019
- 2019-10-10 CN CN201910959724.1A patent/CN110700087A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057427U (en) * | 1989-06-09 | 1990-05-23 | 襄樊市汉江公路桥工程指挥部 | Tumbler auto-controlled device for bridge expansion joints |
| CN2221050Y (en) * | 1995-04-25 | 1996-02-28 | 衡水橡胶股份有限公司 | Bridge extension seem device |
| CN2505512Y (en) * | 2001-10-12 | 2002-08-14 | 陈光和 | Shallow slot bridge expansion device |
| US20080148499A1 (en) * | 2006-12-13 | 2008-06-26 | Construction Research & Technology Gmbh | Expansion joint system |
| CN201567527U (en) * | 2009-11-27 | 2010-09-01 | 成都市虹筑路桥机械有限公司 | Double-joint super-shallow buried profile steel bridge expansion device |
| KR101317953B1 (en) * | 2013-01-02 | 2013-10-18 | 진형건설(주) | Divided modular joint |
| CN203807941U (en) * | 2014-05-19 | 2014-09-03 | 衡水宝力工程橡胶有限公司 | Modular extensible device capable of being replaced quickly |
| CN205387667U (en) * | 2016-03-05 | 2016-07-20 | 孙艳青 | Double slit formula bridge rubber expansion joint device |
| CN208183525U (en) * | 2017-12-26 | 2018-12-04 | 王明明 | A kind of hydraulic combined type bridge extension joint |
| CN207727423U (en) * | 2018-01-15 | 2018-08-14 | 长沙理工大学 | A kind of replaceable shallow embedding modulus bridge expansion device |
| CN208151855U (en) * | 2018-05-10 | 2018-11-27 | 成都市新铁路桥工程有限公司 | A kind of antifatigue changeable type modular expansion device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676811A (en) * | 2020-05-26 | 2020-09-18 | 尉氏县通达公路养护工程有限公司 | Bridge expansion joint device |
| CN112962441A (en) * | 2021-01-28 | 2021-06-15 | 中铁第一勘察设计院集团有限公司 | Self-resetting modular fast-assembly modular expansion device |
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Application publication date: 20200117 |
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