CN107366226A - A kind of bridge extension joint and its expansion joint component - Google Patents
A kind of bridge extension joint and its expansion joint component Download PDFInfo
- Publication number
- CN107366226A CN107366226A CN201710602423.4A CN201710602423A CN107366226A CN 107366226 A CN107366226 A CN 107366226A CN 201710602423 A CN201710602423 A CN 201710602423A CN 107366226 A CN107366226 A CN 107366226A
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- Prior art keywords
- supporting plate
- carrying
- montant
- expansion joint
- concrete
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000002742 anti-folding effect Effects 0.000 abstract description 3
- 241000167854 Bourreria succulenta Species 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract description 2
- 210000003205 muscle Anatomy 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000002834 transmittance Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of bridge extension joint and its expansion joint component.Bridge extension joint includes the expansion joint component two to dress, and gap is formed between two expansion joint components.The present invention takes into full account that concrete flexural strength is low, compression strength is high, process of setting volume contraction and the characteristic with reinforcing bar cohesive force difference, and using the bond stress of concrete, this retractor device and concrete are formed into an entirety；The carrying montant that extensible canopy is directly passed to immediately below vertical back of the body body when being rolled by wheel by vertically carrying on the back body, carrying montant again further spreads power, the whole transmittance process of power does not produce moment of flexure, existing crossbeam cantilever, vertical load are avoided by the way that in ring muscle transfer mode, moment of flexure causes anti-folding to destroy to concrete；The micro chink of the existing concrete caused by concrete shrinkage characteristic and crossbeam bottom surface is avoided, avoids the impact of crossbeam or connecting plate to its underpart concrete, and then avoids the broken of concrete, improves the service life of concrete, it is practical.
Description
Technical field
The present invention relates to a kind of bridge extension joint and its expansion joint component.
Background technology
It is well known that due to temperature change, creep and shrinkage of concrete, the differential settlement on basis, car load shadow
Ring, the length of bridge can change, so that beam-ends is subjected to displacement, in order to adapt to this displacement and keep driving to smooth out, just
It must be provided with bridge extension joint, namely expansion gap device.Bridge extension joint will not only meet between two pieces of bridges of compensation
Deflection, also to meet that the gap to be formed is as small as possible, so that vehicle traveling smoothes out as far as possible.
The Chinese patent that Authorization Notice No. is CN106012822A discloses a kind of expansion joint adjuster and its expansion joint is adjusted
Save device component（That is bridge extension joint, expansion joint component）, as shown in figure 1 and 2, expansion joint regulator member includes the flexible back of the body
01 and support frame 02, support frame 02 include upper strata supporting plate 021 and lower floor's supporting plate 022, in addition to be supported on upper strata supporting plate 021 and under
First the 023, second support 024 of support and vertical supporting plate 025, flexible knapsack between layer supporting plate 022 include vertical back of the body body 011,
Extensible canopy 012 is arranged on vertical back of the body body upper end, the flexible back of the body 01 also include being arranged at the vertical back of the body lower end of body 011 and with lower floor's supporting plate
The 022 upper and lower connecting plate 013 arranged side by side of difference, connecting plate 013, lower floor's supporting plate 022 and first, second are formed between supporting and supplied
The packing space 026 of corresponding Concrete Filled.Problems with when in use be present in the expansion joint adjuster：Wheel is to extensible canopy
Roll and pass to connecting plate by vertically carrying on the back body, connecting plate extrudes the concrete in the packing space of its underpart, connected when wheel leaves
Fishplate bar is because natural resiliency resets, and during wheel iterates through, the concrete in packing space is extruded repeatedly, due to mixed
The fragility characteristic of soil is coagulated, the concrete in packing space is extruded fragmentation, gradually loses the supporting role to the flexible back of the body, and stretch the back of the body
The deflection of connecting plate gradually increase, cause the concrete outside packing space also to follow broken, ultimately result in whole flexible
The separation of regulator member and concrete is stitched, causes expansion joint adjuster can not continue normal use.
The content of the invention
It is an object of the invention to provide a kind of bridge extension joint, to solve filling out under the flexible back of the body of existing retractor device
Fill the concrete filled in space and be easily extruded broken technical problem；The present invention also aims to provide a kind of expansion joint
Component.
To achieve the above object, bridge extension joint of the invention adopts the following technical scheme that：Bridge extension joint by
Two expansion joint components are formed to dress, and the gap at expansion joint is formed between two expansion joint components, and expansion joint component includes flexible
The back of the body and support frame, flexible knapsack include vertical back of the body body and are installed in the extensible canopy of vertical back of the body body upper end, and support frame includes multiple edges
The frame unit that vertical back of the body body length direction is set, frame unit include upper strata supporting plate and lower floor's supporting plate, it is characterized in that, framework list
Member is also included being supported on immediately below vertical back of the body body with by the carrying montant in load transmission suffered by the flexible back of the body to bottom ground.
The frame unit also includes the support bar being located between upper strata supporting plate and lower floor's supporting plate, and support bar is held positioned at described
The side of the close bridge of montant is carried, support bar is arranged at intervals with carrying montant.
It is also associated with connecting cross bar between any two frame unit.
Frame unit is in " day " font, and support bar has two, and is respectively supported at one end and centre of upper and lower layer supporting plate,
The lower end of carrying montant is supported on the other end of lower floor's supporting plate, the vertical upper end carried on the back body and be supported on carrying montant, any two frame
The quantity of connection cross bar between frame unit has five, and five connection cross bars are respectively positioned at upper and lower layer supporting plate and two supports
Corner corresponding to the junction of bar and carrying montant.
One end of the remote bridge of the upper strata supporting plate is fixed on the side of the side of the close bridge of the vertical back of the body body
On.
The expansion joint component of the present invention adopts the following technical scheme that：Expansion joint component includes the flexible back of the body and support frame, stretches
Contracting knapsack includes vertical back of the body body and is installed in the extensible canopy of vertical back of the body body upper end, and support frame vertically carries on the back body length side including multiple
To the frame unit of setting, frame unit includes upper strata supporting plate and lower floor's supporting plate, it is characterized in that, frame unit also includes being supported on
With by the carrying montant in load transmission suffered by the flexible back of the body to bottom ground immediately below vertical back of the body body.
The frame unit also includes the support bar being located between upper strata supporting plate and lower floor's supporting plate, and support bar is held positioned at described
The side of the close bridge of montant is carried, support bar is arranged at intervals with carrying montant.
It is also associated with connecting cross bar between any two frame unit.
Frame unit is in " day " font, and support bar has two, and is respectively supported at one end and centre of upper and lower layer supporting plate,
The lower end of carrying montant is supported on the other end of lower floor's supporting plate, the vertical upper end carried on the back body and be supported on carrying montant, any two frame
The quantity of connection cross bar between frame unit has five, and five connection cross bars are respectively positioned at upper and lower layer supporting plate and two supports
Corner corresponding to the junction of bar and carrying montant.
One end of the remote bridge of the upper strata supporting plate is fixed on the side of the side of the close bridge of the vertical back of the body body
On.
The beneficial effects of the invention are as follows：The bridge extension joint of the present invention includes the expansion joint component two to dress, two
The gap at expansion joint is formed between individual expansion joint component.This retractor device has taken into full account that cement concrete bending strength is low, anti-
Compressive Strength is high, and process of setting volume contraction and the characteristic with reinforcing bar cohesive force difference, will using the bond stress of cement concrete
This retractor device of space net structure forms an entirety with cement concrete；Malleation, avoid stretching for anti-folding expansion joint component
On the carrying montant that contracting beam is directly passed to immediately below vertical back of the body body when being rolled by wheel by vertically carrying on the back body, montant is carried
Power is further spread again, the whole transmittance process of power does not produce moment of flexure, avoids prior art crossbeam cantilever, vertical load from passing through
In ring muscle transfer mode, moment of flexure causes anti-folding to destroy to concrete；Vertical carrier bar makes full use of holding for cement concrete
Power is wrapped up in, crossbeam and concrete are formed into entirety, avoid concrete and crossbeam caused by concrete shrinkage characteristic in the prior art
The micro chink of bottom surface, the impact of crossbeam or connecting plate to its underpart concrete is avoided, and then avoid the under-filled sky of connecting plate
Between in concrete it is broken, improve the service life of flexible back of the body bottom concrete, there is good practicality.
Further, the setting of support bar is remarkably improved the structural strength of frame unit.
Further, the structural strength set between each frame unit for not only increasing support frame of cross bar is connected, and
Add the bonding strength of support frame and concrete.
Brief description of the drawings
Fig. 1 is the front view of existing expansion joint component；
Fig. 2 is Fig. 1 stereogram；
Fig. 3 is the example structure schematic diagram of the bridge extension joint of the present invention；
Fig. 4 is Fig. 3 stereogram；
In Fig. 1-2：The flexible back ofs the body of 01-, 011- vertically carry on the back body, 012- extensible canopies, 013- connecting plates, 02- support frames, 021- upper stratas support
Plate, 022- lower floors supporting plate, 023- first are supported, and 024- second is supported, 025- vertical supporting plates, 026- packing spaces；
In Fig. 3-4：The first expansion joints of 1- component, the second expansion joints of 2- component, 3- vertically carry on the back body, 4- extensible canopies, 5- upper stratas supporting plate,
6- lower floors supporting plate, 7- carrying montants, 8- second are supported, 9- vertical supporting plates, 10- tooth plates, 11- gaps.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The embodiment of the bridge extension joint of the present invention, as shown in Figure 3 to Figure 4, retractor device is by two expansion joint components
Dress is formed, it is spaced apart between two expansion joint components, form the gap 11 at expansion joint, the size in the gap 11 according to
Two aspects of deflection and vehicle stability of bridge are considered, typically no more than 8 centimeters.
Expansion joint component includes the support frame of the flexible back of the body and the fixed flexible back of the body of support.Support frame is used for the support telescopic back of the body and can
It is connected with the embedded bar of bridge.Flexible knapsack includes vertical back of the body body 3 and the extensible canopy 4 of vertical back of the body body 3 upper end, vertical to carry on the back body 3
It is formed in one structure with extensible canopy 4 so that vertical back of the body body 3 forms the horizontal beam of L-shaped with extensible canopy 4, in other embodiments,
Vertical back of the body body 3 can be also fixedly connected with extensible canopy 4 using welding manner.The upper surface of extensible canopy 4 can directly carry the stone roller of wheel
Pressure, then transmits the force to following vertical back of the body body 3.Extensible canopy 4 is from vertical back of the body body 3 away from a lateral expansion joint of bridge
The direction of gap 11 overhangs.
Support frame includes multiple（5 are shown in Fig. 4）Vertically carry on the back the length direction spaced framework side by side of body 3
Unit, pass through more between two frame units of arbitrary neighborhood（5 are shown in Fig. 4）Cross bar connection is connected, with reinforced frame list
Structural strength between member and the bonding strength between concrete.Frame unit includes the left and right sides of vertical vertical back of the body body 3
The upper strata supporting plate 5 and lower floor's supporting plate 6 that face is set, upper and lower layer pallets level arrangement, and in same perpendicular, framework
Unit also includes the support bar between upper and lower layer supporting plate, and support bar includes the close bridge for being connected to upper and lower layer supporting plate
The vertical supporting plate 9 of one end, in addition to the second support 8 positioned at the middle part in upper and lower layer pallet length direction, lower floor's supporting plate 6
One end away from bridge is connected with carrying montant 7, and carrying montant 7 is vertically arranged, and its lower end is to be welded and fixed with lower floor supporting plate 6,
Its upper end is welded on the downside of the vertical back of the body body 3 of the flexible back of the body, that is, carries the underface that montant 7 is located at vertical back of the body body 3, so as to
The power of vertical back of the body body 3 directly can pass to lower floor's supporting plate 6 by carrying montant 7, be then passed to ground.Upper strata supporting plate 5 connects
It is connected on the side of the side of the close bridge of vertical back of the body body 3, upper and lower layer supporting plate, the support of vertical supporting plate 9, second 8, carrying
A part for montant 7 and vertical back of the body body 3 forms the frame structure of " day " font, and vertical body 3 of carrying on the back is located at " day " glyph framework knot
At the upper angle of the remote bridge of structure, the tie point difference position of the connection cross bar between two " day " glyph framework structures of arbitrary neighborhood
In corner.
The lower weld of vertical back of the body body 3 has tooth plate 10, and tooth plate 10 is formed at vertical back of the body body 3 between two expansion joint components
Gap 11 in extend, the distance of extension is the half of the width of gap 11, and the tooth plate 10 per side has multiple and along expansion joint structure
The length direction of part is arranged at intervals, the tooth plates 10 of both sides to the gap 11 of centre extend when be interlaced arrangement.
Vertical back of the body body 3 is higher by support frame certain distance, and the upper of extensible canopy 4 on body 3 is vertically carried on the back when this allows for use
Surface is concordant with ground, and the space formed above support frame with the drop of the upper surface of extensible canopy 4 is used for fill concrete and pitch
Deng equal fill concrete inside, support frame, between the support frame of two expansion joint components, between vertical back of the body body 3 and extensible canopy 4 it
Between space be expansion joint gap 11, need in the gap 11 filled and process etc. that there is noise reduction, water suction, dust-proof, scalable
Material.
The bridge extension joint of the present invention when in use, will weld the first expansion joint component 1 completed and the second expansion joint
Component 2 is staggered relatively at the installation position of bridge, ensures that both are as far as possible parallel during arrangement, the upper side of extensible canopy 4 is tried one's best position
In sustained height, extensible canopy 4 it is parallel away from the side of the side of bridge, and make both tooth plates 10 in the length of expansion joint component
Interlaced arrangement on direction is spent, the embedded bar of both support frames and both sides is welded together after arrangement is appropriate, then propped up
Concrete, the seam at expansion joint are poured into a mould in support and above support frame at the space of the side of the close bridge of vertical back of the body body 3
The material such as filled and process in gap 11, to play a part of noise reduction, waterproof and dustproof, sands-proof check, compensation deformation.When vehicle traveling is logical
When crossing expansion gap device, wheel rolls extensible canopy 4, and extensible canopy 4 transmits the force to the vertical back of the body body 3 being attached thereto, vertical to carry on the back body 3
Carrying montant 7 is transmitted the force to, because carrying montant 7 lower end is directly anchored on lower floor's supporting plate 6, transmits the force to lower floor's supporting plate
6, lower floor's supporting plate 6 transmits the force to ground, concrete power transmission is needed not move through when power is transmitted, therefore concrete is non-breakable.By
It is mainly used for compensating the deformation in bridge length direction in retractor device, the width cloth of the length of retractor device along bridge
Put, when bridge is wider, the width of bridge can be covered by way of multiple retractor devices splice.
Stretching in the embodiment of the expansion joint component of the present invention and each embodiment of the bridge extension joint of the invention described above
Each embodiment of contracting seam component is identical, repeats no more.
Claims (10)
1. expansion joint component, including the flexible back of the body and support frame, flexible knapsack includes vertical back of the body body and is installed in vertical back of the body body upper end
Extensible canopy, support frame include it is multiple vertically carry on the back the frame units that body length directions are set, frame unit includes upper strata supporting plate
With lower floor's supporting plate, it is characterized in that, frame unit is also included being supported on immediately below vertical back of the body body with by load transmission suffered by the flexible back of the body
Carrying montant on to bottom ground.
2. expansion joint component according to claim 1, it is characterized in that, the frame unit also include being located at upper strata supporting plate and
Support bar between lower floor's supporting plate, support bar is positioned at the side of the close bridge of the carrying montant, support bar and carrying montant
It is arranged at intervals.
3. expansion joint component according to claim 2, it is characterized in that, it is also associated with connecting between any two frame unit
Cross bar.
4. expansion joint component according to claim 3, it is characterized in that, frame unit is in " day " font, and support bar has two,
And one end and centre of upper and lower layer supporting plate are respectively supported at, the lower end for carrying montant is supported on the other end of lower floor's supporting plate, vertically
Back of the body body is supported on the upper end of carrying montant, and the quantity of the connection cross bar between any two frame unit has five, and five companies
Cross bar is connect respectively positioned at upper and lower layer supporting plate corner corresponding with the junction of two support bars and carrying montant.
5. according to the expansion joint component described in claim 1-4 any one, it is characterized in that, the remote bridge of the upper strata supporting plate
One end be fixed on the vertical back of the body body close bridge side side on.
6. bridge extension joint, dress is formed by two expansion joint components, the seam at expansion joint is formed between two expansion joint components
Gap, expansion joint component include the flexible back of the body and support frame, and flexible knapsack includes vertical back of the body body and is installed in stretching for vertical back of the body body upper end
Contracting beam, support frame include multiple frame units for vertically carrying on the back the setting of body length direction, and frame unit includes upper strata supporting plate with
Layer supporting plate, it is characterized in that, frame unit also include being supported on immediately below vertical back of the body body with by load transmission suffered by the flexible back of the body under
Carrying montant on portion's ground.
7. bridge extension joint according to claim 6, it is characterized in that, the frame unit also includes being located at upper strata supporting plate
Support bar between lower floor's supporting plate, support bar are perpendicular with carrying positioned at the side of the close bridge of the carrying montant, support bar
Bar is arranged at intervals.
8. bridge extension joint according to claim 7, it is characterized in that, the company of being also associated between any two frame unit
Connect cross bar.
9. bridge extension joint according to claim 8, it is characterized in that, frame unit is in " day " font, and support bar has two
Root, and one end and centre of upper and lower layer supporting plate are respectively supported at, the lower end for carrying montant is supported on the other end of lower floor's supporting plate,
Vertical back of the body body is supported on the upper end of carrying montant, and the quantity of the connection cross bar between any two frame unit has five, and five
Root connection cross bar is respectively positioned at upper and lower layer supporting plate corner corresponding with the junction of two support bars and carrying montant.
10. according to the bridge extension joint described in claim 6-9 any one, it is characterized in that, the upper strata supporting plate it is remote
One end of bridge is fixed on the side of the side of the close bridge of the vertical back of the body body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602423.4A CN107366226A (en) | 2017-07-21 | 2017-07-21 | A kind of bridge extension joint and its expansion joint component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602423.4A CN107366226A (en) | 2017-07-21 | 2017-07-21 | A kind of bridge extension joint and its expansion joint component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366226A true CN107366226A (en) | 2017-11-21 |
Family
ID=60307496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710602423.4A Pending CN107366226A (en) | 2017-07-21 | 2017-07-21 | A kind of bridge extension joint and its expansion joint component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706836A (en) * | 2019-02-20 | 2019-05-03 | 曲宽厚 | A kind of bridge expansion joint installation of telescopic unit component and its composition |
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| CN2486594Y (en) * | 2001-07-15 | 2002-04-17 | 王军 | Beam for bridge telescopic device |
| JP2005042391A (en) * | 2003-07-22 | 2005-02-17 | Sho Bond Constr Co Ltd | Steel expansion joint and construction method of steel expansion joint |
| CN2871631Y (en) * | 2006-03-02 | 2007-02-21 | 李西俊 | Parts of arc telescopic seam adjuster and arc telescopic seam adjuster |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN204780573U (en) * | 2015-06-05 | 2015-11-18 | 衡水橡胶股份有限公司 | Luo liang expansion joint device is prevented to modulus formula |
| CN105803934A (en) * | 2016-05-11 | 2016-07-27 | 武汉耐久伸缩工程有限公司 | Low-frictional-resistance triple-proofing bolt-free comb plate bridge expansion and contraction device and installation method |
-
2017
- 2017-07-21 CN CN201710602423.4A patent/CN107366226A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486594Y (en) * | 2001-07-15 | 2002-04-17 | 王军 | Beam for bridge telescopic device |
| JP2005042391A (en) * | 2003-07-22 | 2005-02-17 | Sho Bond Constr Co Ltd | Steel expansion joint and construction method of steel expansion joint |
| CN2871631Y (en) * | 2006-03-02 | 2007-02-21 | 李西俊 | Parts of arc telescopic seam adjuster and arc telescopic seam adjuster |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN204780573U (en) * | 2015-06-05 | 2015-11-18 | 衡水橡胶股份有限公司 | Luo liang expansion joint device is prevented to modulus formula |
| CN105803934A (en) * | 2016-05-11 | 2016-07-27 | 武汉耐久伸缩工程有限公司 | Low-frictional-resistance triple-proofing bolt-free comb plate bridge expansion and contraction device and installation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706836A (en) * | 2019-02-20 | 2019-05-03 | 曲宽厚 | A kind of bridge expansion joint installation of telescopic unit component and its composition |
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Application publication date: 20171121 |