CN206736706U - A kind of concrete cast-in-situ bridge anti-fall girder apparatus - Google Patents
A kind of concrete cast-in-situ bridge anti-fall girder apparatus Download PDFInfo
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- CN206736706U CN206736706U CN201720478950.4U CN201720478950U CN206736706U CN 206736706 U CN206736706 U CN 206736706U CN 201720478950 U CN201720478950 U CN 201720478950U CN 206736706 U CN206736706 U CN 206736706U
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- built
- steel pipe
- fitting
- concrete cast
- fall girder
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Abstract
The utility model provides a kind of concrete cast-in-situ bridge anti-fall girder apparatus,Including two adjacent box beams,Expansion joint is mutually separated between described two box beams,Multiple built-in fittings being arranged along a straight line are respectively equipped with the both sides side wall at expansion joint,Two installing plates are equipped with each built-in fitting,It is parallel to each other between two installing plates,And each installing plate is perpendicular with side wall,Built-in fitting positioned at expansion joint both sides corresponds to two-by-two,The mutual determining deviation of offset one between two corresponding built-in fittings,So that it is overlapping to be intersected two-by-two between the installing plate on two built-in fittings respectively,The overlapping positions of two overlapping installing plates are respectively equipped with the mounting hole being mutually aligned,And multiple mounting holes to align two-by-two are located along the same line,Running through in mounting hole has a steel pipe,Concrete has been poured in the pipe of steel pipe,Concrete has been poured in the pipe of steel pipe,Concrete has been poured in the pipe of steel pipe,Said structure make it that two box girder body connections are more firm,Avoid the generation of beam.
Description
Technical field
A kind of concrete cast-in-situ bridge anti-fall girder apparatus is the utility model is related to, belongs to bridge girder falling technical field.
Background technology
China is one of most strong and earthquake disaster most serious country of seismic activity in the world.In terms of science of bridge building,
All previous seimic disaster census shows：It is that frequency highest, destructive bridge earthquake form that is maximum, repairing difficulty the most occurs to fall beam.Bridge
Beam falls beam and can cause the paralysis of whole traffic, and great obstruction is brought to the disaster relief after calamity and repairing work.Bridges in Our Country
Anti-fall girder apparatus is installed at bridge expanssion joint at present, mainly using antidetonation facilities such as crab-bolt, block, steel brackets.Above facility
Come with some shortcomings, there is no that setting prevents the secondary anti-fall girder apparatus to be dropped when bridge shakes；Installation and later stage dimension
Repair and be both needed to work high above the ground, difficulty is big, and cost is high；When falling beam generation, its pre-embedded device is highly vulnerable to breakage, and restorability is poor；It is former by it
The influence of material and manufacture craft, cost are higher.Therefore the design of bridge structure anti-fall girder apparatus is studied, preferably to improve
Stability of the bridge structure under severe earthquake action, the problem just overcome into current urgent need.
The content of the invention
The defects of existing in view of above-mentioned existing anti-fall girder apparatus, the utility model provide a kind of concrete cast-in-situ bridge
Beam anti-fall girder apparatus, the usage safety performance of bridge connection is improved, it is had more practicality, concrete structure is as follows：
A kind of concrete cast-in-situ bridge anti-fall girder apparatus, including two adjacent box beams, it is separated by between described two box beams
There is expansion joint, multiple built-in fittings being arranged along a straight line are respectively equipped with the both sides side wall at expansion joint, are equipped with each built-in fitting
Two installing plates, it is parallel to each other between two installing plates, and each installing plate is perpendicular with side wall, positioned at expansion joint both sides
Built-in fitting corresponds to two-by-two, the mutual determining deviation of offset one between two corresponding built-in fittings so that pre-buried positioned at two respectively
It can be intersected two-by-two between installing plate on part overlapping, the overlapping positions of two overlapping installing plates are respectively equipped with mutually right
Neat mounting hole, and multiple mounting holes to align two-by-two are located along the same line, running through in mounting hole has a steel pipe, the steel
Concrete has been poured in the pipe of pipe.
Expansion joint top described further is provided with the Telescopic rubber device of two box beams of connection, and the built-in fitting, which is arranged on, to be stretched
Contracting seam medium position.
The bottom of two box beams described further is arranged on bridge pier by bearing respectively.
Mounting hole described further includes main aperture, and the both sides of main aperture are respectively equipped with secondary orifices, and the secondary orifices of main aperture and both sides is mutual
Connection, the steel pipe are inserted in main aperture, and when relative displacement between two box beams, steel pipe is caught in secondary orifices with displacement.
The top of installing plate described further is in circular shape.
The rear and front end of steel pipe described further is respectively equipped with fastening thread, and center drilling is provided with the fastening thread
Rectangle baffle plate, the rectangle baffle plate is fitted in the outside of the installing plate positioned at steel pipe front and back end, the outside installation of rectangle baffle plate
There is nut.
Built-in fitting described further is embedded in box beam.
The further built-in fitting includes rectangular steel plates, side and the installing plate vertical connection of rectangular steel plates, rectangle steel
Four rectangle Angle Positions of the opposite side of plate are respectively welded the dowel perpendicular with rectangular steel plates, and the other end of each dowel is set
There is an anchor slab parallel with rectangular steel plates.
The utility model compared to the prior art compared with, by the expansion joint between two box beams set be in hinge
It the anti-fall girder apparatus of structure, can avoid the generation of beam phenomenon, while bridge can be made freely to be stretched along longitudinal direction, have slow
The effect of punching, damping power consumption, improve the stability of bridge.
Brief description of the drawings
Fig. 1 is a kind of concrete cast-in-situ bridge anti-fall girder apparatus structural representation；
Fig. 2 is the positive structure diagram of device installment state in Fig. 1；
Fig. 3 is the overlooking the structure diagram of device installment state in Fig. 1；
Fig. 4 is built-in fitting positive structure diagram in Fig. 1；
Fig. 5 is the structure chart of installing plate.
Reference：1- anchor slabs, 2- dowels, 3- rectangular steel plates, 4- installing plates, 5- steel pipes, 6- concrete, 7- rectangles gear
Plate, 8- nuts, 9- box beams, 10- Telescopic rubber devices, 11- bridge piers, 12- built-in fittings, 13- expansion joints, 14- mounting holes, 15- master
Hole, 16- secondary orifices, 17- fastening threads.
Embodiment
Embodiment 1
As shown in Figure 1 to Figure 3, shown a kind of concrete cast-in-situ bridge anti-fall girder apparatus, including two adjacent box beams 9,
Mutually it is separated with expansion joint 13 between described two box beams 9, multiple be arranged along a straight line is respectively equipped with the both sides side wall at expansion joint 13
Built-in fitting 12, two or more installing plates 4, two or more installing plates 4 are equipped with each built-in fitting 12
Between be parallel to each other, and each installing plate 4 is perpendicular with side wall, and the built-in fitting 12 positioned at the both sides of expansion joint 13 corresponds to two-by-two,
The mutual determining deviation of offset one between two corresponding built-in fittings 12 so that the installing plate on two built-in fittings 12 respectively
It can be intersected two-by-two between 4 overlapping, the overlapping positions of two overlapping installing plates 4 are respectively equipped with the mounting hole being mutually aligned
14, and multiple mounting holes 14 to align two-by-two are located along the same line, running through in mounting hole 14 has a steel pipe 5, the steel pipe 5
Pipe in poured concrete 6.Said apparatus is similar and hinge arrangement, by steel pipe 5 and wears the multiple peaces being connected on steel pipe 5
Loading board 4 reinforces two box beams 8, and when box beam 8 produces vibration displacement, stress passes through multiple installations caused by box beam 8
Plate 4 is uniformly delivered on steel pipe 5, so as to prevent certain of box beam 9 from causing box beam 9 to be caved in by the stress with concentration.
And two or more installing plates 4 are set on built-in fitting 12, and its structure will be more compared with setting single installing plate 4
What is added is firm, avoids installing plate 4 and is easily damaged when by torsion.Multiple built-in fittings 12 and the peace being connected with built-in fitting 12
Loading board 4 wears the vibrations and displacement for being connected on and can be good at adapting to all directions in two box beams on steel pipe 5.So as to play
The purpose of protection box beam, there is the effect of good girder falling.
As shown in figure 3, being to carry out fastening setting to steel pipe 5, prevent steel pipe 5 from skidding off mounting hole 14.The steel pipe 5 it is front and rear
Both ends are respectively equipped with fastening thread 17, and the rectangle baffle plate 7 of center drilling, the rectangle baffle plate are provided with the fastening thread 17
7 are fitted in the outside of the installing plate 4 positioned at the front and back end of steel pipe 5, and the outside of rectangle baffle plate 7 is provided with nut 8.
Embodiment 2
As shown in Fig. 2 because built-in fitting is larger, and the middle part width of expansion joint 13 is relative to the upper and lower part at expansion joint 13
All wider, the top of expansion joint 13 is provided with the Telescopic rubber device 10 of two box beams 9 of connection, and the built-in fitting 12, which is arranged on, to be stretched
Contracting 13 medium positions of seam.The bottom of described two box beams 9 is arranged on bridge pier 11 by bearing respectively.
Embodiment 3
As shown in figure 5, the mounting hole 14 includes main aperture 15, the both sides of main aperture 15 are respectively equipped with secondary orifices 16, main aperture 15 with
The secondary orifices 16 of both sides is interconnected, and the steel pipe 5 is inserted in main aperture 15, when relative displacement between two box beams 9, steel pipe 5
Be caught in displacement in secondary orifices 16, the structure can play buffering steel pipe be subject to from installing plate transmission from in box beam should
Power, increase also extend the service life of steel pipe while possessing more preferable buffering effect.The top of the installing plate 4 is in circle
Arc shape, when installing plate 4 is produced twisting by the stress of box beam 9, because installing plate 4 and the distance of opposite box beam 9 relatively connect
Closely, circular shape can reduce in twisting and cause extruding of the installing plate 4 to box beam 9.
Embodiment 4
As shown in figure 3, the built-in fitting 12 is embedded in box beam 9.As shown in figure 4, the built-in fitting 12 includes rectangle steel
Plate 3, side and the vertical connection of installing plate 4 of rectangular steel plates 3, four rectangle Angle Positions of the opposite side of rectangular steel plates 3 weld respectively
The dowel 2 perpendicular with rectangular steel plates 3 is connected to, the other end of each dowel 2 is provided with an anchor slab 1 parallel with rectangular steel plates 3.Peace
The beam-ends mainly comprised the following steps first on both sides of dress built-in fitting 12 carries out formwork and installs built-in fitting 12, is answered when installing built-in fitting 12
The construction drawing check and correction size of built-in fitting 12 and position is compareed, then casting concrete, then conserved and form removal, postorder carry out pre-buried
The construction quality inspection, repairing treatment etc. of part.
Built-in fitting 12 must not collide in solid timing position with the cage bar in box beam, and be arranged on the inside of cage bar.Concrete
During pouring, vibrating head should be avoided directly contacting with pre-buried 12, carefully vibrate, and built-in fitting 12 is observed when vibrating, and
Shi Jiaozheng built-in fittings position.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of concrete cast-in-situ bridge anti-fall girder apparatus, it is characterised in that including two adjacent box beams, described two box beams
Between be mutually separated with expansion joint, multiple built-in fittings being arranged along a straight line, each built-in fitting are respectively equipped with the both sides side wall at expansion joint
On be equipped with two installing plates, be parallel to each other between two installing plates, and each installing plate is perpendicular with side wall, positioned at flexible
The built-in fitting of seam both sides corresponds to two-by-two, the mutual determining deviation of offset one between two corresponding built-in fittings so that be located at respectively
It can be intersected two-by-two between installing plate on two built-in fittings overlapping, the overlapping positions of two overlapping installing plates are set respectively
There is the mounting hole being mutually aligned, and multiple mounting holes to align two-by-two are located along the same line, running through in mounting hole has a steel
Manage, concrete has been poured in the pipe of the steel pipe.
2. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that the expansion joint top is set
There is the Telescopic rubber device of two box beams of connection, the built-in fitting is arranged on expansion joint medium position.
3. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that the bottom of described two box beams
Portion is arranged on bridge pier by bearing respectively.
4. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that the mounting hole includes master
Hole, the both sides of main aperture are respectively equipped with secondary orifices, and the secondary orifices of main aperture and both sides is interconnected, and the steel pipe is inserted in main aperture, when two
Between individual box beam during relative displacement, steel pipe is caught in secondary orifices with displacement.
5. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that the top of the installing plate
In circular shape.
6. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that front and rear the two of the steel pipe
End is respectively equipped with fastening thread, the rectangle baffle plate of center drilling is provided with the fastening thread, the rectangle baffle plate is fitted in
Positioned at the outside of the installing plate of steel pipe front and back end, the outside of rectangle baffle plate is provided with nut.
7. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 1, it is characterised in that the built-in fitting is embedded in
In box beam.
8. concrete cast-in-situ bridge anti-fall girder apparatus according to claim 7, it is characterised in that the built-in fitting includes square
Shape steel plate, side and the installing plate vertical connection of rectangular steel plates, four rectangle Angle Positions of the opposite side of rectangular steel plates weld respectively
The dowel perpendicular with rectangular steel plates is connected to, the other end of each dowel is provided with an anchor slab parallel with rectangular steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478950.4U CN206736706U (en) | 2017-05-03 | 2017-05-03 | A kind of concrete cast-in-situ bridge anti-fall girder apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478950.4U CN206736706U (en) | 2017-05-03 | 2017-05-03 | A kind of concrete cast-in-situ bridge anti-fall girder apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206736706U true CN206736706U (en) | 2017-12-12 |
Family
ID=60563398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478950.4U Expired - Fee Related CN206736706U (en) | 2017-05-03 | 2017-05-03 | A kind of concrete cast-in-situ bridge anti-fall girder apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206736706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519516A (en) * | 2020-05-19 | 2020-08-11 | 中铁工程设计咨询集团有限公司 | Railway bridge beam end lateral displacement coordination device |
| CN111795205A (en) * | 2020-07-22 | 2020-10-20 | 武汉市年华管业有限公司 | Concrete pipeline joint strengthening treatment method |
-
2017
- 2017-05-03 CN CN201720478950.4U patent/CN206736706U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519516A (en) * | 2020-05-19 | 2020-08-11 | 中铁工程设计咨询集团有限公司 | Railway bridge beam end lateral displacement coordination device |
| CN111519516B (en) * | 2020-05-19 | 2021-08-31 | 中铁工程设计咨询集团有限公司 | Railway bridge beam end lateral displacement coordination device |
| CN111795205A (en) * | 2020-07-22 | 2020-10-20 | 武汉市年华管业有限公司 | Concrete pipeline joint strengthening treatment method |
| CN111795205B (en) * | 2020-07-22 | 2022-04-12 | 武汉市年华管业有限公司 | Concrete pipeline joint strengthening treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20200503 |