CN209307885U - A kind of girder-embedded arch structure and the bridge using the structure - Google Patents
A kind of girder-embedded arch structure and the bridge using the structure Download PDFInfo
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- CN209307885U CN209307885U CN201822065100.9U CN201822065100U CN209307885U CN 209307885 U CN209307885 U CN 209307885U CN 201822065100 U CN201822065100 U CN 201822065100U CN 209307885 U CN209307885 U CN 209307885U
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- steel plate
- steel pipe
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- truss
- girder
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Abstract
The utility model discloses a kind of girder-embedded arch structure and using the bridge of the structure, including supporting station, interconnecting piece, device for exerting and steel pipe；The both ends of steel pipe are arranged in interconnecting piece joint steel pipe, device for exerting and supporting station；Several truss reinforcement devices are arranged in interval on steel pipe, and each truss reinforcement device two sides are provided with high-strength bolt, and high-strength bolt is fixedly connected with bridge；Interconnecting piece includes the second steel plate and third steel plate arranged in parallel, steel pipe passes through the aperture of third steel plate, steel pipe end surface is connect with the second steel plate, the both ends of jack are separately connected the first steel plate and the second steel plate, and the first steel plate is fixedly connected with supporting station, manipulate jack by both ends station and compressing force is headed into steel pipe, lifting force is generated in span centre, so that downwarp beam section is returned to former target position, mitigate box beam bottom slab crack, guarantees the safety of beam body and vehicle pass-through；The utility model clear concept, definite principle are readily produced, easy to repair, applied widely.
Description
Technical field
The utility model belongs to the construction field of science of bridge building, is related to the reinforcing of large-span concrete box girder bridge more particularly in one kind
Set roof truss-arched structure and the bridge using the structure.
Background technique
With the development of national economy and modern transportation transport undertaking, Longspan Bridge is increasing, with the operation phase
The growth of time especially in the continuous beam and continuous rigid frame bridge of Long span, has and quite counts in built large-span concrete box girder bridge
There is the excessive downwarp of span centre and box girder body two major diseases of cracking in the bridge of amount.Middle span deflexion can be further exacerbated by box beam bottom plate and hold
It splits, and box girder body crack increases and reduces the rigidity of structure, is further exacerbated by middle span deflexion, the two influences each other to form pernicious follow
Ring.For the continuous beam and continuous rigid frame bridge of the box girder bridge for disease occurred especially Long span, at present engineering circles using it is more,
The obvious reinforcement means of effect i.e. pass through apply external prestressing steel beam such bridge is reinforced, but how reasonable cloth
External prestressing steel beam is set, the consolidation effect and subsequent two times tensioning feasibility etc. for giving full play to external prestressing steel beam are also
Need further to be studied.Research application time in view of external prestressing steel beam reinforcement technique in China is shorter, and the knot reinforced
There is the risk for continuing downwarp and cracking in structure, relatively simple therefore, it is necessary to develop a kind of structure, and performance is stablized, sustainable application
The reinforcement means of jacking force.
Utility model content
To solve the above problems, the utility model provides a kind of girder-embedded arch structure and the bridge using the structure, it should
Device includes three parallel steel pipe segments, and steel pipe is linear to adopt that box beam bottom plate is linear, is connected to both ends with certain spacing
On supporting station, device for exerting is manipulated by two supports platform, jacking force is applied in steel pipe truss, generates lifting force in span centre,
Downwarp beam section can be prevented to continue downwarp, to mitigate the risk that box girder web bottom plate further cracks, guaranteeing beam body and vehicle just
The safety of normal open row.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of girder-embedded arch structure, including bearing
Platform, interconnecting piece, device for exerting and steel pipe；The both ends of steel pipe are arranged in interconnecting piece joint steel pipe, device for exerting and supporting station；
Interval is arranged several truss reinforcement devices on steel pipe, and each truss reinforcement device two sides are provided with high-strength bolt, high-strength bolt with
Box beam bottom plate is fixedly connected；
Interconnecting piece includes the second steel plate and third steel plate arranged in parallel, and the center of third steel plate is equipped with aperture, steel pipe
Across the aperture, the end face of steel pipe is connect with the second Interal fixation, and the second steel plate and third steel plate use several reinforcement steel plates
It is fixedly connected；
Device for exerting includes the first steel plate and jack, and the both ends of jack are separately connected the first steel plate and the second steel plate,
First steel plate is fixedly connected with supporting station.
The both ends for reinforcing steel plate are welded and fixed with the second steel plate and third steel plate respectively, reinforce steel plate extremely on each interconnecting piece
Rare two groups of steel plate right-angled intersections setting reinforces steel plate in the place-centric and jack of the second steel plate and third steel plate second
The place-centric of steel plate is overlapped.
Truss reinforcement device includes three groups of triangular trusses being made of the first truss piece, the center of the triangular truss
It is provided with clamping rings, each vertex of the triangular truss is provided with the second truss piece for being connected and fixed annulus, and steel pipe is worn
Cross clamping rings.
Spring is provided between second truss piece and clamping rings.
The two sides of the bottom of truss reinforcement device are provided with hinged-support, and hinged-support is fixedly connected with high-strength bolt；Truss reinforcement
The two sides of the bottom of device and hinged-support are hinged.
High-strength bolt passes through box beam bottom plate two sides, box beam plate outer side and high-strength bolt junction be provided with reinforce steel plate with
And concrete block.
Metal caul is provided on first steel plate, the junction of steel pipe and third steel plate is provided with deep floor.
Spacing close to adjacent two truss reinforcements device at steel pipe axis center is greater than close to adjacent two truss in steel pipe both ends
The spacing of bracing means.
The member outer surface is coated with rust-proof coating.
A kind of bridge built using girder-embedded arch structure.
Compared with prior art, the utility model at least has the advantages that internal truss frame arch structure passes through anchoring
Steel pipe is compressed in device for exerting, interconnecting piece and the truss reinforcement device on concrete anchoring platform, is fixed, under being mounted on span centre
In the continuous beam of the large-span concrete box girder bridge especially Long span scratched, continuous rigid frame bridge, jack compression two under normal operating condition
Steel pipe is held, jacking force is applied in steel pipe truss, and the lifting force that steel pipe truss generates passes through truss reinforcement device and box beam bottom plate
Connection be transferred to box beam, downwarp beam section can be prevented to continue downwarp, to mitigate the risk that box girder web bottom plate further cracks,
Play the role of bridge strengthening；
It is linear that the steel pipe line style of internal tubular type arch structure adopts box beam bottom plate, steel pipe can segmented precast assembly, whole structures
Part can be transported to inside box beam by people hole, easy for construction, be easy to implement；It is reinforced inside box beam, and to stretching case
The nut of beam bottom plate is wrapped up with concrete, is greatly reduced to the extent of the destruction of box beam, and will not encounter prestressing force in box beam
Beam, it is highly-safe；Truss reinforcement device is hinged on box beam bottom, can generate small vertical bridge Xiang Yidong with the flexible of steel pipe；
Box beam internal temperature is high and more moist, be easy to cause metal rusting, internal tubular type arch structure smears antirust paint can be as much as possible
The adverse effect for reducing metal rusting and structure being generated；The utility model clear concept, definite principle is powerful, is easy to
Production, it is easy to repair.
Further, the both ends for reinforcing steel plate are welded and fixed with the second steel plate and third steel plate respectively, on each interconnecting piece
Reinforce steel plate at least two groups of steel plate right-angled intersection settings, reinforces steel plate in the second steel plate, the place-centric of third steel plate and thousand
The place-centric that jin withstands on the second steel plate is overlapped, and keeps interconnecting piece firmer, while the power that device for exerting applies interconnecting piece
Steel pipe can be effectively transferred to.
Further, truss reinforcement device includes three groups of triangular trusses being made of the first truss piece, the triangle
Truss is provided centrally with clamping rings, and each vertex of the triangular truss is provided with the second truss for being connected and fixed annulus
Piece, steel pipe pass through clamping rings, triangular truss stable structure, and steel pipe passes through three groups of triangular truss centers and makes steel pipe also shape
Whole stability is improved at triangle.
Further, one end that high-strength bolt stretches out box beam bottom plate is provided with fastening nut, and fastening nut is by concrete block
Package to protect fastening nut from corrosion, and breaks box beam bottom plate caused by compensating for due to high-strength bolt perforation
It is bad.
Further, hinged-support can make truss reinforcement device and steel pipe along bridge is indulged to sliding, prevent tube bending.
Further, metal caul is set on steel plate, reinforces steel pipe and is connect with metal caul, the stress on the first steel plate point
Cloth more evenly, will not local stress cross ambassador's steel plate and be deformed.
Further, backing plate is provided on the first steel plate, the junction of steel pipe and third steel plate is provided with reinforcement steel plate, mentions
The stability and fastness of high steel pipe and interconnecting piece, while the conducting effect of very heavy ejecting force can also be improved.
Further, all member outer surfaces coat rust-proof coating, can effectively prevent excessively moist inside box beam and cause
Metal rusting.
Detailed description of the invention
Fig. 1 is the utility model overall construction schematic diagram.
Fig. 2 is the utility model supporting station overall construction schematic diagram.
Fig. 3 is the utility model device for exerting and interconnecting piece schematic diagram.
Fig. 4 is the perspective view of the explosion of Fig. 3.
Fig. 5 the utility model truss reinforcement device overall schematic.
Fig. 6 is the application in the utility model Practical Project.
Fig. 7 is the girder-embedded arch structure steel pipe stress sketch of the utility model.
In attached drawing: 1- supporting station, 2- interconnecting piece, the first steel plate of 21-, the second steel plate of 22-, 23- third steel plate, 3- pressure dress
It sets, 31- reinforces steel pipe, 32- jack, 4- metal caul, 5- steel pipe, 6- reinforcement steel plate, 7- the first truss piece, 8- spring, 9-
Clamping rings, 10- hinged-support, 11- high-strength bolt, 12- concrete block, 13- truss reinforcement device, 14- the second truss piece, 15-
Diaphragm plate
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in figures 1 to 6, girder-embedded arch structure, including three steel pipes 5, the both ends of steel pipe 5 are fixed on supporting station 1
On, supporting station 1 is fixedly connected with bridge pier top diaphragm plate 15, setting several groups truss reinforcement device 13 in interval on three steel pipes 5,
The bottom of truss reinforcement device 13 is connect with box beam bottom.
As shown in Fig. 2 ~ Fig. 4, a kind of girder-embedded arch structure, including supporting station 1, interconnecting piece 2, device for exerting 3 and steel
Pipe 5；The both ends of steel pipe 5 are arranged in 2 joint steel pipe 5 of interconnecting piece, device for exerting 3 and supporting station 1；If being spaced setting on steel pipe 5
Dry truss reinforcement device 13, each 13 two sides of truss reinforcement device are provided with high-strength bolt 11, and high-strength bolt and box beam bottom plate are solid
Fixed connection；Interconnecting piece 2 includes the second steel plate 22 arranged in parallel and third steel plate 23, and the center of third steel plate 23, which is equipped with, opens
Hole, steel pipe 5 pass through the aperture, and the end face of steel pipe 5 is fixedly connected with the second steel plate 22, and the second steel plate 22 and third steel plate 23 are adopted
It is fixedly connected with several reinforcement steel plates 6；Device for exerting 3 includes the first steel plate 21 and jack 32, and the both ends of jack 32 are distinguished
The first steel plate 21 and the second steel plate 22 are connected, the first steel plate 21 is fixedly connected with supporting station 1.Pad is provided on first steel plate 21
The junction of plate, steel pipe 5 and third steel plate 23 is provided with deep floor.
The both ends for reinforcing steel plate 6 are welded and fixed with the second steel plate 22 and third steel plate 23 respectively, reinforce on each interconnecting piece
At least two groups of steel plate right-angled intersections setting of steel plate 6, reinforce steel plate 6 the second steel plate 22 and third steel plate 23 place-centric with
Jack 32 is overlapped in the place-centric of the second steel plate 22.
As shown in Figure 5 and Figure 6, truss reinforcement device 13 includes three groups of triangular trusses being made of the first truss piece 7, institute
That states triangular truss is provided centrally with clamping rings 9, and each vertex of the triangular truss, which is provided with, is connected and fixed annulus 9
The second truss piece 14, steel pipe 5 pass through clamping rings 9；Spring 8, clamping rings 9 and the hinged-support 10 of clamping rings 9；Second
Spring 8 is provided between truss piece and clamping rings 9；The two sides of the bottom of truss reinforcement device 13 are provided with hinged-support 10, hinge
Support 10 is fixedly connected with high-strength bolt 11；The two sides of the bottom of truss reinforcement device 13 and hinged-support 10 are hinged, and high-strength bolt 11 is worn
Gap bridge beam bottom plate two sides, box beam plate outer side and 11 junction of high-strength bolt are provided with stiffening plate and concrete block 12.
As shown in Figure 1, the spacing close to adjacent two truss reinforcements device 13 at 5 axis centre of steel pipe is greater than close to steel pipe 5
The spacing of the adjacent two truss reinforcements device 13 in both ends.
The member outer surface is coated with rust-proof coating.
The utility model is preferred, and supporting station 1 anchors platform using concrete.
Concrete anchors platform by formwork, cast-in-place, is connected with pier top top diaphragm plate, and jack device is arranged in coagulation
On soil anchoring platform, 5 segmented assembly of steel pipe is fixedly connected by truss reinforcement device 13, and both ends are connected with jack device.It is logical
Cross jack device compression both ends steel pipe, compressing force is headed into steel pipe, the lifting force that steel pipe 5 generates by truss reinforcement device with
The connection of box beam bottom plate is transferred to box beam, and so that beam body is generated lifting force makes downwarp beam section return to former target position.
Supporting station 1 is connected, mould bases can be transported by end people hole, just by formwork, cast-in-place with pier top top diaphragm plate
In realization；
Interconnecting piece 2 includes the second steel plate 22 arranged in parallel and third steel plate 23, and the center of third steel plate 23, which is equipped with, opens
Hole, steel pipe 5 pass through the aperture, and the end face of steel pipe 5 is fixedly connected with the second steel plate 22, and the second steel plate 22 and third steel plate 23 are adopted
It is fixedly connected with several reinforcement steel plates 6；
Device for exerting 3 includes the first steel plate 21 and jack 32, and the both ends of jack 32 are separately connected 21 He of the first steel plate
Second steel plate 22, the first steel plate 21 are fixedly connected with supporting station 1.Backing plate, steel pipe 5 and third steel plate are provided on first steel plate 21
23 junction is provided with deep floor.
Device for exerting is fixedly connected with interconnecting piece by the second steel plate 22
Two sides, which are equipped with, between second steel plate 22 and third steel plate 23 reinforces steel plate 6.
Reinforce steel pipe 31 and be placed in make stress distribution on steel plate 21 4 on metal caul more evenly, will not local stress it is excessive
It is deformed steel plate 2.
Truss reinforcement device 13 is spliced by three groups of triangular truss pieces 7；Specifically, triangle and the two sides at middle part
Triangle direction is on the contrary, three groups of triangular trusses form the length that trapezoidal, trapezoidal upper bottom is the first truss piece 7, under trapezoidal
Bottom is twice of 7 length of the first truss piece.
Truss reinforcement device 13 is connected to box beam bottom using hinged-support 10, and hinged-support 10 is fixed on by high-strength bolt 11
Box beam bottom plate；Hinged-support 10 can make truss reinforcement device 13 and steel pipe 5, to sliding, prevent tube bending along vertical bridge.
One end that high-strength bolt stretches out box beam bottom plate is provided with fastening nut, and fastening nut is wrapped up by concrete block 12, with
It protects fastening nut from corrosion, and compensates for destruction to box beam bottom plate caused by due to high-strength bolt 11 is perforated.
One layer of antirust paint is smeared on the surface of the utility model, is prevented excessively moist inside box beam and is caused metal rusting.
The construction method of girder-embedded tubular type arch structure described in the utility model is as follows:
Step 1, the formwork supporting plate on the inside of the diaphragm plate of pier top top, poured in place concrete anchor platform as supporting station 1, template
It is transported to inside box beam by people hole, while carrying out the installation of subsequent built-in fitting device；
Step 2, after concrete curing is up to standard to intensity, the first steel plate 21 is mounted on anchoring platform, welding metal pad
Plate 4, and be welded on steel pipe 31 is reinforced on metal caul 4, jack 32 is installed in the two sides for reinforcing steel pipe 31, by the second steel plate 22
It connect and is placed on two jack with reinforcement steel pipe 31,22 both ends of the second steel plate welding reinforcement steel plate 6,23 sets of third steel plate
It is fixedly connected on steel pipe 5 with reinforcement steel plate 6；Same method completes the installation of other two groups of jack devices.
Step 3, high-strength bolt 11 is installed in box beam two sides of the bottom by the spacing of design, stretches out the fastening nut of box beam bottom plate
It is wrapped up with concrete, hinged-support 10 is mounted on box beam bottom plate by high-strength bolt.
Step 4, according to by both ends to centre, symmetrical assembled sequence of construction, assembled first set truss reinforcement device 13, so
Steel pipe 5 is fixedly connected with the second steel plate 22 afterwards, be further continued for installation under a set of truss reinforcement device 13, by next section of steel pipe 5 with
The preceding paragraph steel pipe 5 connects, and is fixed on the clamping rings 9 of this section truss piece, repeats said sequence, until assembled last two section
Steel pipe, girder-embedded arch structure are installed.
The components such as jack, truss piece, steel pipe can be transported to inside box beam by people hole, be easy to implement；Pass through manipulation
Device for exerting compresses both ends steel pipe, and jacking force is applied in steel pipe truss, and the lifting force that steel pipe generates passes through truss reinforcement device
Connection with box beam bottom plate is transferred to box beam, and can hingedly make truss reinforcement device in vertical bridge to flexible along steel pipe and move,
Will not tube bending, and then beam body generate lifting force can prevent beam body continue downwarp, to mitigate box girder web bottom slab crack
Risk plays the role of bridge strengthening；Guarantee the safety of beam body and vehicle normal pass；Clear concept of the present invention, definite principle,
It is powerful, be readily produced, it is easy to repair, it is mountable middle span deflexion, main beam structure type be box beam bridge on, prevent
Or reduce bridge middle span deflexion amount, to play the role of bridge strengthening, action principle is as shown in Figure 7.
Claims (9)
1. a kind of girder-embedded arch structure, which is characterized in that including supporting station (1), interconnecting piece (2), device for exerting (3) and steel
It manages (5)；The both ends of interconnecting piece (2) joint steel pipe (5), device for exerting (3) and supporting station (1) setting in steel pipe (5)；Steel pipe
(5) several truss reinforcement devices (13) are arranged in interval on, and each truss reinforcement device (13) two sides are provided with high-strength bolt (11),
High-strength bolt is fixedly connected with box beam bottom plate；
Interconnecting piece (2) includes the second steel plate (22) arranged in parallel and third steel plate (23), and the center of third steel plate (23) is set
Have an aperture, steel pipe (5) passes through the aperture, and the end face of steel pipe (5) is fixedly connected with the second steel plate (22), the second steel plate (22) and
Third steel plate (23) is fixedly connected using several reinforcement steel plates (6)；Device for exerting (3) includes the first steel plate (21) and jack
(32), the both ends of jack (32) are separately connected the first steel plate (21) and the second steel plate (22), the first steel plate (21) and supporting station
(1) it is fixedly connected.
2. girder-embedded arch structure according to claim 1, which is characterized in that reinforce the both ends of steel plate (6) respectively with the
Two steel plates (22) and third steel plate (23) are welded and fixed, and reinforce steel plate (6) at least two groups of steel plate crosses on each interconnecting piece (2)
It is arranged in a crossed manner, reinforce steel plate (6) in the place-centric of the second steel plate (22) and third steel plate (23) and jack (32) second
The place-centric of steel plate (22) is overlapped.
3. girder-embedded arch structure according to claim 1, which is characterized in that truss reinforcement device (13) includes by first
Three groups of triangular trusses of truss piece (7) composition, the triangular truss are provided centrally with clamping rings (9), the triangle
Each vertex of shape truss is provided with the second truss piece (14) for being connected and fixed annulus (9), and steel pipe (5) passes through clamping rings (9).
4. girder-embedded arch structure according to claim 3, which is characterized in that the second truss piece (14) and clamping rings
(9) spring (8) are provided between.
5. girder-embedded arch structure according to claim 3, which is characterized in that the two sides of the bottom of truss reinforcement device (13)
It is provided with hinged-support (10), hinged-support (10) is fixedly connected with high-strength bolt (11)；The two sides of the bottom of truss reinforcement device (13)
It is hinged with hinged-support (10).
6. girder-embedded arch structure according to claim 5, which is characterized in that high-strength bolt (11) passes through box beam bottom plate two
Side, box beam plate outer side and high-strength bolt (11) junction, which are provided with, reinforces steel plate and concrete block (12).
7. girder-embedded arch structure according to claim 1, which is characterized in that the first steel plate is provided with metal gasket on (21)
Plate (4), steel pipe (5) and the junction of third steel plate (23) are provided with deep floor.
8. girder-embedded arch structure according to claim 1, which is characterized in that adjacent at steel pipe (5) axis centre
The spacing of two truss reinforcement devices (13) is greater than the spacing close to the adjacent two truss reinforcements device (13) in steel pipe (5) both ends.
9. a kind of bridge using any one of claim 1 ~ 8 greatly across the girder-embedded arch structure of box girder bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822065100.9U CN209307885U (en) | 2018-12-10 | 2018-12-10 | A kind of girder-embedded arch structure and the bridge using the structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822065100.9U CN209307885U (en) | 2018-12-10 | 2018-12-10 | A kind of girder-embedded arch structure and the bridge using the structure |
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| Publication Number | Publication Date |
|---|---|
| CN209307885U true CN209307885U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822065100.9U Expired - Fee Related CN209307885U (en) | 2018-12-10 | 2018-12-10 | A kind of girder-embedded arch structure and the bridge using the structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209307885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371859A (en) * | 2018-12-10 | 2019-02-22 | 长安大学 | It is a kind of to reinforce girder-embedded arch structure and its construction method across box girder bridge greatly |
-
2018
- 2018-12-10 CN CN201822065100.9U patent/CN209307885U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371859A (en) * | 2018-12-10 | 2019-02-22 | 长安大学 | It is a kind of to reinforce girder-embedded arch structure and its construction method across box girder bridge greatly |
| CN109371859B (en) * | 2018-12-10 | 2024-05-03 | 长安大学 | Built-in truss arch structure for reinforcing large-span box girder bridge and construction method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190827 Termination date: 20211210 |