CN207347918U - A kind of comb-tooth-type bridge expansion joint installation - Google Patents
A kind of comb-tooth-type bridge expansion joint installation Download PDFInfo
- Publication number
- CN207347918U CN207347918U CN201721337275.XU CN201721337275U CN207347918U CN 207347918 U CN207347918 U CN 207347918U CN 201721337275 U CN201721337275 U CN 201721337275U CN 207347918 U CN207347918 U CN 207347918U
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- Prior art keywords
- expansion joint
- tooth
- comb
- central sill
- sealing plate
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- 238000009434 installation Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 230000035939 shock Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 10
- 239000004567 concrete Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011210 fiber-reinforced concrete Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of comb-tooth-type bridge expansion joint installation, including central sill and side bar, fishback is respectively and fixedly provided with the side bar and central sill, dampening assembly is fixed with below the central sill, the side bar lower end is fixed with bottom plate, the central sill lower end is fixed with upper head plate, the dampening assembly includes upper sealing plate and lower sealing plate, alternately rubber pad and steel plate are equipped between the upper sealing plate and lower sealing plate, dovetail groove is offered on the lower sealing plate, the two bottom plate lower surfaces are extended with riser vertically downward, latch assembly is equipped between two risers, the latch assembly includes fastening screw and clamp nut, compression spring is arranged with the fastening screw, two side bars are respectively and fixedly provided with anchor rib away from the side of central sill.The utility model provides that easy for installation, intensity is high, shock resistance is strong, and a kind of comb-tooth-type bridge expansion joint installation of bridge safty can be greatly improved.
Description
Technical field
It the utility model is related to a kind of bridge expansion joint structure, more particularly to a kind of comb-tooth-type bridge expansion joint installation.
Background technology
During modern bridge construction, to meet the needs of bridge floor deformation, it will usually between two beam-ends, beam-ends and bridge
Expansion joint is set between platform or in the articulated position of bridge, it is desirable to expansion joint it is parallel, perpendicular to two sides of bridge axes
Can freely stretch upwards, it is solid and reliable, should be smoothed out in vehicle travel process, without kick and noise, and can prevent rainwater and
Rubbish soil stretches into obstruction, installation, check, maintenance, eliminate dirt will simple and convenient.
Chinese patent notification number is that the utility model patent of CN204875504U discloses a kind of bridge expanssion joint link,
It is arranged in parallel including two some at the top of the supporting beam with fixing the supporting beam of supporting role, being arranged in dentation distribution
Bridging board and the link being arranged on the outside of the supporting beam, the mutually interspersed occlusion of bridging board at the top of two supporting beams,
Link is fixed with the reinforcement welding in bridge.
According to above-mentioned technical proposal, during construction, fixing groove is opened up on bridge first, strengthening frame is positioned over fixing groove
In, and fixed with the reinforcement welding in bridge；After two bridges are docking together, the bridging board on two links is mutually handed over
Fork-shaped is into an opposed flattened road surface.But after the completion of bridge construction, bridge is once because earthquake or heavy vehicle are crossed
There are slight vibrations in reason, and extremely serious stress concentration phenomenon will all occur at bridge expanssion joint；Above-mentioned technical proposal does not have
The problem of considering damping, which easily damages because bridge shakes in use, so that bridge adjacent two
Flexible space, and frequently mutually extruding are lost between section, finally so that bridge floor is broken, or even triggers serious safe thing
Therefore.
Utility model content
The purpose of this utility model is to provide a kind of comb-tooth-type bridge expansion joint installation, by dampening assembly, coordinates broach
Formula bridge expansion joint installation, is greatly improved bridge safty.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of comb-tooth-type bridge is stretched
Device, including central sill and two groups of side bars for being symmetrically disposed on central sill both sides are stitched in contracting, and broach is respectively and fixedly provided with the side bar and central sill
Plate, the central sill lower section are fixedly connected with the dampening assembly for being used to support central sill, and the dampening assembly is set with two side bars in fixation
Put.
By using above-mentioned technical proposal, dampening assembly is set below central sill, and dampening assembly and side bar are fixed, is carried
The anti-seismic performance of the high comb-tooth-type bridge expansion joint installation entirety, reduces comb-tooth-type bridge expansion joint installation because of vibrations and by crushing
Bad risk, helps to improve bridge construction quality, the risk that bridge floor is broken is reduced, so that bridge security be greatly improved
Property.
The utility model is further arranged to：The two side bar lower ends are horizontally fixed with for being fixedly connected with dampening assembly
The bottom plate of lower surface, the central sill lower end are horizontally fixed with the upper head plate for being fixedly connected with dampening assembly upper surface.
By using above-mentioned technical proposal, dampening assembly upper and lower surface pushes against upper and lower end plate respectively, and dampening assembly can be same
When play cushioning effect to side bar and central sill, reduce the risk of side bar and central sill fail in compression.
The utility model is further arranged to：The dampening assembly includes upper sealing plate and lower sealing plate, and the upper sealing plate is with
Alternately rubber pad and steel plate are equipped between sealing plate；The upper sealing plate is fixedly connected with upper head plate, the lower sealing plate and bottom plate
It is fixedly connected.
By using above-mentioned technical proposal, rubber pad and steel plate are alternately laid between upper sealing plate and lower sealing plate, and adjacent two
Sidesway occurs for either segment and when there is the trend for extruding another bridge section in bridge section, steel plate and rubber integrally can upper and lower sealing plate it
Between by shear force, it is and integral inclined, buffered so as to be realized to two bridge sections, avoid two bridge sections from mutually extruding and damage the broach
Formula bridge expansion joint installation；Meanwhile when driving the factor of above-mentioned bridge section sidesway to eliminate, recover to make in rubber pad and steel plate plasticity
Under booster action firmly, the trend for recovering primary clearance can occur in two bridge sections, so as to ensure that adjacent two bridge section exists all the time
Enough gaps supply adjacent two bridge sections dilatation.
The utility model is further arranged to：The rubber pad and steel plate are at least provided with two groups.
By using above-mentioned technical proposal, by setting multigroup rubber pad and steel plate, help to increase dampening assembly inclination
Amplitude, help to improve the shock resistance of dampening assembly entirety.
The utility model is further arranged to：It is trapezoidal through offering along the length direction straight line of central sill on the lower sealing plate
Groove, each rubber pad and steel plate are integrally covered and are fixed in dovetail groove.
By using above-mentioned technical proposal, each rubber pad and steel plate are integrally covered and are fixed in dovetail groove, by trapezoidal
The two opposite side walls of groove, play each steel plate and rubber pad position-limiting action, improve the anti-shearing ability of dampening assembly, help to carry
The damping effect of high dampening assembly, reduces the amplitude of any bridge section sidesway.
The utility model is further arranged to：The two bottom plate lower surfaces are extended with riser vertically downward, described in two
The latch assembly for being used for locking two risers is equipped between riser.
By using above-mentioned technical proposal, two risers are locked by latch assembly, are fixed so as to be realized to two measurement downsides,
Help to increase comb-tooth-type bridge expansion joint installation overall construction intensity, avoid comb-tooth-type bridge expansion joint installation from damaging or fail
Risk.
The utility model is further arranged to：The latch assembly includes fastening screw and clamp nut, the fastening spiral shell
Bar level wears riser, and the clamp nut is threadedly connected to the end of fastening screw, the head of the fastening screw and fastening
Nut pushes against two risers respectively.
By using above-mentioned technical proposal, fastening screw coordinates fastening screw to lock two risers, is ensureing comb-tooth-type bridge
While expansion gap device overall construction intensity, avoid too increasing cost.
The utility model is further arranged to：Compression spring is arranged with the fastening screw, it is described to compress the two of spring
End pushes against two risers respectively.
By using above-mentioned technical proposal, by setting compression spring between two risers, compression spring can improve comb
Tooth-like bridge expansion joint installation supports shock proof ability；When sidesway occurs for any bridge section, compression spring can push against two side bars,
Avoid two side bars with corresponding bridge section mutual extrusion and collision, help to reduce the wind of comb-tooth-type bridge expansion joint installation damage
Danger, and the anti seismic efficiency of comb-tooth-type bridge expansion joint installation can be improved.
The utility model is further arranged to：The latch assembly is at least interval with 2 groups along the length direction of side bar.
By using above-mentioned technical proposal, by multigroup spaced latch assembly, comb-tooth-type can be further improved
The shock resistance of bridge expansion joint installation.
The utility model is further arranged to：Two side bars are respectively and fixedly provided with anchor rib, the anchor away from the side of central sill
Gu the length direction uniform intervals of muscle along side bar are equipped with multigroup.
By using above-mentioned technical proposal, after completing concreting at expansion joint, two side bars can pass through anchor rib
Fixed with the bridge section of corresponding side, help to improve the structural strength at bridge expanssion joint.
In conclusion the utility model has the advantages that：By setting dampening assembly between side bar and central sill,
The rubber pad and steel plate being arranged alternately using multilayer, lock component, not only increase the structural strength at bridge expanssion joint,
And the shock resistance at bridge expanssion joint is greatly improved, prevent the adjacent mutual extrusion and collision of two bridge sections, avoid bridge floor from occurring disconnected
The security risk such as split, bridge construction quality is greatly improved so that the security of bridge greatly improves.
Brief description of the drawings
Fig. 1 is primarily used for embodying integrally-built first axonometric schematic diagram of the present embodiment；
Fig. 2 is primarily used for embodying integrally-built second axonometric schematic diagram of the present embodiment；
Fig. 3 is the structure diagram that the present embodiment is mainly used for embodying dampening assembly.
Reference numeral：1st, bridge floor；2nd, comb-tooth-type bridge expansion joint installation；3rd, central sill；4th, side bar；5th, fishback；6th, anchor
Muscle；7th, horizontal bar；8th, upper head plate；9th, bottom plate；10th, dampening assembly；101st, upper sealing plate；1011st, dovetail groove；102nd, lower sealing plate；
1021st, trapezoidal protrusion；103rd, rubber pad；104th, steel plate；11st, riser；12nd, latch assembly；121st, fastening screw；122nd, spiral shell is fastened
It is female；123rd, spring is compressed.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to attached drawing 1-2, a kind of comb-tooth-type bridge expansion joint installation, is mainly used for the construction operation of bridge expanssion joint, it
Including central sill 3, central sill 3 is in be vertically arranged, and the width at central sill 3 along expansion joint is interval with two groups；The outside of two central sills 3
Side bar 4 is equipped with, two side bars 4 are symmetrical set on expansion joint width direction, and two side bars 4 are in be vertically arranged.In reality
During construction, the length direction of comb-tooth-type bridge expansion joint installation 2 along the bridge expanssion joint is arranged at intervals with multigroup, and is covered with it
Whole expansion joint.
Above-mentioned 3 upper end of side bar 4 and central sill is integrally formed with fishback 5, and each fishback 5 is in horizontally disposed and adjacent
The tooth type structures that can be mutually twisted are formed between fishback 5；To ensure the dilatation between adjacent bridge section, adjacent two broach
Certain gap is reserved between plate 5.
Referring to attached drawing 2, two side bars 4 are welded with anchor rib 6,6 U-shaped structure of anchor rib away from the side of central sill 3；
During construction, after each comb-tooth-type bridge expansion joint installation 2 is put neatly at expansion joint, staff can pour at expansion joint
Concrete, so that by 6 one-piece casting of anchor rib in the concrete of both sides so that the anchor rib 6 of both sides respectively with adjacent two bridge
Section is fixedly connected.
With reference to attached drawing 1, to ensure the structural strength at expansion joint, anchor rib 6 is more along the length direction interval setting of side bar 4
Group, and in each anchor rib 6 horizontal bar 7 is equipped with along the length direction of side bar 4.Meanwhile the above-mentioned coagulation for being used to pour expansion joint
Soil is preferably steel fiber reinforced concrete；Steel fiber reinforced concrete is that the short steel fibre that random distribution is mixed in normal concrete is formed
A kind of new heterogeneous composite material, the steel fibre of these random distributions can effectively hinder inside concrete microcrack
Extension and the formation of macrocrack, significantly improve tension, bending resistance, shock resistance and the anti-fatigue performance of concrete, have compared with
Good ductility.
Referring to attached drawing 2, the lower end of above-mentioned side bar 4 and central sill 3 is horizontal-extending respectively bottom plate 9 and upper head plate 8, upper head plate
The dampening assembly 10 for being used to support central sill 3 is equipped between 8 and bottom plate 9.
With reference to attached drawing 3, dampening assembly 10 includes upper sealing plate 101 and lower sealing plate 102, and upper sealing plate 101 and lower sealing plate 102 are in flat
Row is set, and upper sealing plate 101 and lower sealing plate 102 are fixedly connected by bolt with upper head plate 8 and bottom plate 9 respectively.Wherein, lower envelope
102 upper surface indent of plate forms dovetail groove 1011, and the dovetail groove 1011 is along the length direction straight line at expansion joint on entirely
Sealing plate 101, and 101 lower surface of upper sealing plate convex forms trapezoidal raised 1021 under corresponding to.It is fixed with if being covered in dovetail groove 1011
Dry rubber substance pad 103 and steel plate 104, each rubber pad 103 and steel plate 104 are in being arranged alternately, finally so that upper sealing plate 101 and lower sealing plate
102 push against upper head plate 8 and bottom plate 9 respectively.
Referring to attached drawing 2, to further improve the structural strength of the comb-tooth-type bridge expansion joint installation 2, under two bottom plates 9
Surface is extended with riser 11 vertically downward, and level is equipped with fastening screw 121 between two risers 11, fastening screw 121
End thread is connected with clamp nut 122, and compression spring 123 is arranged with fastening screw 121, compresses the both ends of spring 123
Two risers 11 are pushed against respectively.
Above-mentioned fastening screw 121, clamp nut 122 and compression spring 123 have been monolithically fabricated the lock for locking two side bars 4
Tight component 12, and the length direction of latch assembly 12 along the riser 11 be arranged at intervals with it is multigroup.
The operation principle of the present embodiment is：When either segment sidesway occurs and extrudes adjacent another bridge section in adjacent two bridge section
When, the side bar 4 of corresponding side can be close to central sill 3 adjacent thereto so that and scuffing occurs for fishback 5 therebetween, from
And realize the dilatation of bridge floor 1.
When bridge vibrations are excessive, the trend of adjacent two bridge sections sidesway becomes larger；At this time, as the fishback 5 on side bar 4 squeezes
The fishback 5 on central sill 3 is pressed, central sill 3 can drive each rubber pad 103 and steel plate 104 becoming for sidesway occur by upper sealing plate 101
Gesture, using the plastic deformation between rubber pad 103 and steel plate 104, realizes bridge and buffers, so as to avoid adjacent two bridge section from occurring
Extrusion and collision, reduces the risk that bridge floor 1 is broken, and improves bridge safty.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (10)
1. a kind of comb-tooth-type bridge expansion joint installation, including central sill（3）And two groups be symmetrically disposed on central sill（3）The side bar of both sides
（4）, the side bar（4）And central sill（3）On be respectively and fixedly provided with fishback（5）, it is characterized in that：The central sill（3）Lower section is fixedly connected
It is useful for support central sill（3）Dampening assembly（10）, the dampening assembly（10）With two side bars（4）In fixed setting.
2. a kind of comb-tooth-type bridge expansion joint installation according to claim 1, it is characterized in that：Two side bars（4）Lower end
It is horizontally fixed with for being fixedly connected with dampening assembly（10）The bottom plate of lower surface（9）, the central sill（3）Lower end is horizontal fixed
It is useful for being fixedly connected with dampening assembly（10）The upper head plate of upper surface（8）.
3. a kind of comb-tooth-type bridge expansion joint installation according to claim 2, it is characterized in that：The dampening assembly（10）Bag
Include upper sealing plate（101）With lower sealing plate（102）, the upper sealing plate（101）With lower sealing plate（102）Between alternately be equipped with rubber pad
（103）And steel plate（104）；The upper sealing plate（101）With upper head plate（8）It is fixedly connected, the lower sealing plate（102）With bottom plate
（9）It is fixedly connected.
4. a kind of comb-tooth-type bridge expansion joint installation according to claim 3, it is characterized in that：The rubber pad（103）With
Steel plate（104）At least provided with two groups.
5. a kind of comb-tooth-type bridge expansion joint installation according to claim 4, it is characterized in that：The lower sealing plate（102）On
Along central sill（3）Length direction straight line through offering dovetail groove（1011）, each rubber pad（103）And steel plate（104）It is whole
Body, which covers, is fixed on dovetail groove（1011）In.
6. a kind of comb-tooth-type bridge expansion joint installation according to claim 2 or 5, it is characterized in that：Two bottom plates（9）
Lower surface is extended with riser vertically downward（11）, two risers（11）Between be equipped be used for lock two risers（11）Locking
Component（12）.
7. a kind of comb-tooth-type bridge expansion joint installation according to claim 6, it is characterized in that：The latch assembly（12）Bag
Include fastening screw（121）And clamp nut（122）, the fastening screw（121）Level wears riser（11）, the clamp nut
（122）It is threadedly connected to fastening screw（121）End, the fastening screw（121）Head and clamp nut（122）Respectively
Push against two risers（11）.
8. a kind of comb-tooth-type bridge expansion joint installation according to claim 7, it is characterized in that：The fastening screw（121）
On be arranged with compression spring（123）, the compression spring（123）Both ends push against two risers respectively（11）.
9. a kind of comb-tooth-type bridge expansion joint installation according to claim 8, it is characterized in that：The latch assembly（12）Edge
Side bar（4）Length direction be at least interval with 2 groups.
10. a kind of comb-tooth-type bridge expansion joint installation according to any one of claim 1-5, it is characterized in that：Described in two
Side bar（4）Away from central sill（3）Side be respectively and fixedly provided with anchor rib（6）, the anchor rib（6）Along side bar（4）Length direction it is equal
It is even be interval with it is multigroup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337275.XU CN207347918U (en) | 2017-10-17 | 2017-10-17 | A kind of comb-tooth-type bridge expansion joint installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721337275.XU CN207347918U (en) | 2017-10-17 | 2017-10-17 | A kind of comb-tooth-type bridge expansion joint installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207347918U true CN207347918U (en) | 2018-05-11 |
Family
ID=62355235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721337275.XU Expired - Fee Related CN207347918U (en) | 2017-10-17 | 2017-10-17 | A kind of comb-tooth-type bridge expansion joint installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207347918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235417A (en) * | 2021-06-17 | 2021-08-10 | 李涛 | Comb-tooth type bridge expansion device |
-
2017
- 2017-10-17 CN CN201721337275.XU patent/CN207347918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235417A (en) * | 2021-06-17 | 2021-08-10 | 李涛 | Comb-tooth type bridge expansion device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 |