CN110184907A - A kind of steel reinforced concrete combined road-bridge retractor device - Google Patents
A kind of steel reinforced concrete combined road-bridge retractor device Download PDFInfo
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- CN110184907A CN110184907A CN201910565029.7A CN201910565029A CN110184907A CN 110184907 A CN110184907 A CN 110184907A CN 201910565029 A CN201910565029 A CN 201910565029A CN 110184907 A CN110184907 A CN 110184907A
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- telescopic section
- steel
- prefabricated board
- reinforced concrete
- bridge
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of steel reinforced concrete combined road-bridge retractor device, including bent cap, beam body and Prefabricated assembled stretching structure, bent cap connects two adjacent beam bodies, Prefabricated assembled stretching structure includes the first telescopic section and the second telescopic section of the center line symmetrical setting relative to lug boss, between first telescopic section and the second telescopic section there is gap to form expansion joint, it is flexible to set up the lug boss for being placed in bent cap separately, expansion joint setting in compared to the prior art is in the two sides of bent cap, The present invention reduces an expansion joints, Prefabricated assembled stretching structure can effectively prevent the differential settlement of expansion joint two sides, guarantee the flatness of Prefabricated assembled stretching structure, reduce vehicle bump at bridge ends at expansion joint, be conducive to improve driving comfort level, improve the durability and service life of telescopic device.At the same time, pre-buried steel hoop and anchor plate in prefabricated board, improve the durability of Prefabricated assembled stretching structure, improve construction quality and construction efficiency.
Description
Technical field
The present invention relates to freely-supported bridge structure technical fields, more particularly to a kind of steel reinforced concrete combined road-bridge retractor device.
Background technique
Simply supported girder bridge is that the beam being respectively supported on a movable bearing support and a hinged-support by a both ends is used as mainly
The beam bridge of load-carrying members, belongs to statically determinate structure, is in beam bridge using a kind of earliest, most popular bridge type, construction letter
It is single, set up the influence convenient, structural internal force is not changed by foundation deformation, temperature.
The concrete prefabricated beam of simply supported girder bridge is typically supported at " convex " font concrete bent cap lug boss of pier coping portion
Two sides shoulder, and expansion joint is respectively set between the prefabricated beam body of bent cap lug boss and both ends, existed with meeting bridge superstructure
The deformation generated at temperature and contraction.Existing expansion gap device is usually in the junction of bent cap lug boss and two sides beam body
Respectively one telescopic device of setting, while cost is significantly increased, be easy to cause inhomogeneous deformation, pavement damage etc., leads to end of the bridge
Jump vehicle.Bumping at bridge-head influences driving comfort level, and the percussion of carload is larger, unfavorable to bridge force-bearing, while
It is unfavorable to telescopic device stress, so that the Acceptable life of expansion gap device is greatly reduced.
How to change in the prior art, concrete prefabricated beam expansion joint two sides differential settlement easily causes bumping at bridge-head
Status is those skilled in the art's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of steel reinforced concrete combined road-bridge retractor devices, above-mentioned of the existing technology to solve
Problem alleviates vehicle bump at bridge ends at expansion joint, improves driving comfort level.
To achieve the above object, the present invention provides following schemes: it is flexible that the present invention provides a kind of steel reinforced concrete combined bridge
Device, including bent cap, beam body and Prefabricated assembled stretching structure, the bent cap connect two adjacent beam bodies, the lid
Beam includes the first end, lug boss and the second end being sequentially connected, the height of the lug boss first end, described
The height of the second end is high, and one end of the beam body is connected with the first end or the second end overlap joint, the beam body
Top and the lug boss top flush, between the beam body and the lug boss have gap；
The Prefabricated assembled stretching structure includes the first flexible of the center line symmetrical setting relative to the lug boss
Part and the second telescopic section have gap, first pars contractilis between first telescopic section and the second telescopic section
Divide, second telescopic section connects the lug boss and the beam body, first telescopic section, second telescopic section
It include prefabricated board and interconnecting piece, the interconnecting piece connects the prefabricated board and the beam body, and the prefabricated board is mixed by steel fibre
Solidifying soil material is made, and the prefabricated board is arranged pre-buried steel hoop and anchor plate, and the anchor plate is set to described the
One telescopic section or the described one end of second telescopic section far from the interconnecting piece, the prefabricated board also set up circular hole, the circle
Hole is arranged through the prefabricated board and the anchor plate, and the axis of the circular hole and the length direction of the beam body are perpendicular,
The circular hole is located in the inner ring of the steel hoop, setting perforation reinforcing bar in the circular hole, the interconnecting piece setting connection steel
Muscle, the connection reinforcing bar are connected with the steel hoop, and the interconnecting piece is made of cast in situs mode.
Preferably, Dustproof plastic cystosepiment is set between first telescopic section and second telescopic section, it is described
Waterstop is arranged in the bottom of Dustproof plastic cystosepiment, and the waterstop is made of rubber material.
Preferably, junction steel plate, the junction steel plate are set between the Dustproof plastic cystosepiment and the anchor plate
It is connected with the anchor plate, swing tooth plate, the swing tooth plate is arranged in the top of the junction steel plate and the anchor plate
It is connected with the junction steel plate, the top surface of the swing tooth plate and bridge floor flush.
Preferably, the prefabricated board is connected with angle steel fixture, and the angle steel fixture is bolted with the prefabricated board, and two
The both ends of the waterstop are pressed on the junction steel plate by the angle steel fixture respectively.
Preferably, sliding steel plate is set between first telescopic section, second telescopic section and the lug boss,
Graphite powder is set between first telescopic section, second telescopic section and the sliding steel plate.
Preferably, screed-coat is set between the prefabricated board and the beam body, and the screed-coat is made of mortar, the cunning
The both ends of dynamic steel plate extend to the top of the beam body.
Preferably, the interconnecting piece includes post-cast strip, regulating course and pave-load layer, and the regulating course is set to the beam body
Top, the regulating course are made of concrete, and the pave-load layer is set to the top of the regulating course, and the pave-load layer is by pitch
Material is made, and the post-cast strip is filled in the sky between the regulating course, the pave-load layer, the prefabricated board and the screed-coat
Between, the top of the pave-load layer, the post-cast strip top with bridge floor flush, the connection reinforcing bar run through the leveling
Layer, the post-cast strip are connected with the anchor plate.
Preferably, arc one end and top of the steel hoop protrude from the prefabricated board, the post-cast strip filling
Between the steel hoop and the prefabricated board.
Preferably, the quantity of the circular hole is two, and two circular holes are set to the steel hoop close to described convex
The side setting in the portion of rising.
The present invention achieves following technical effect compared with the existing technology: the flexible dress of steel reinforced concrete combined bridge of the invention
It sets, including bent cap, beam body and Prefabricated assembled stretching structure, bent cap connects two adjacent beam bodies, and bent cap includes being sequentially connected
First end, lug boss and the second end, the height of lug boss is high compared with the height of first end, the second end, the one of beam body
End is connected with first end or the second end overlap joint, the top of beam body and the top flush of lug boss, beam body and lug boss it
Between have gap；Prefabricated assembled stretching structure include the center line symmetrical setting relative to lug boss the first telescopic section and
Second telescopic section has gap, the first telescopic section, the second telescopic section between the first telescopic section and the second telescopic section
Connection bump portion and beam body, the first telescopic section, the second telescopic section include prefabricated board and interconnecting piece, and interconnecting piece connection is prefabricated
Plate and beam body, prefabricated board are made of steel fiber reinforced concrete material, and pre-buried steel hoop and anchor plate is arranged in prefabricated board, anchoring
Steel plate is set to the one end of the first telescopic section or the second telescopic section far from interconnecting piece, and prefabricated board also sets up circular hole, and circular hole passes through
Prefabricated board and anchor plate setting are worn, the axis of circular hole and the length direction of beam body are perpendicular, and circular hole is located at the interior of steel hoop
In circle, setting perforation reinforcing bar in circular hole, interconnecting piece setting connects reinforcing bar, and connection reinforcing bar is connected with steel hoop, and interconnecting piece uses
Cast in situs mode is made.The steel reinforced concrete combined road-bridge retractor device of the application, the first telescopic section and the second pars contractilis divide it
Between there is gap to form expansion joint, it is flexible to set up the lug boss for being placed in bent cap separately, compared to the prior art in expansion joint setting in
The two sides of bent cap, The present invention reduces an expansion joint, Prefabricated assembled stretching structure can effectively prevent expansion joint two sides
Differential settlement guarantees the flatness of Prefabricated assembled stretching structure, reduces vehicle bump at bridge ends at expansion joint, is conducive to improve
Driving comfort level, the durability and service life for improving telescopic device.At the same time, pre-buried steel hoop and anchoring in prefabricated board
Steel plate improves the durability of Prefabricated assembled stretching structure, improves construction quality and construction efficiency.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of steel reinforced concrete combined road-bridge retractor device of the invention；
Wherein, 1 is bent cap, and 2 be beam body, and 3 be prefabricated board, and 4 be steel hoop, and 5 be anchor plate, and 6 be perforation reinforcing bar, 7
To connect reinforcing bar, 8 be Dustproof plastic cystosepiment, and 9 be waterstop, and 10 be junction steel plate, and 11 be swing tooth plate, and 12 be angle clip
Tool, 13 be sliding steel plate, and 14 be screed-coat, and 15 be post-cast strip, and 16 be regulating course, and 17 be pave-load layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of steel reinforced concrete combined road-bridge retractor devices, above-mentioned of the existing technology to solve
Problem alleviates vehicle bump at bridge ends at expansion joint, improves driving comfort level.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to FIG. 1, Fig. 1 is the structural schematic diagram of steel reinforced concrete combined road-bridge retractor device of the invention.
The present invention provides a kind of steel reinforced concrete combined road-bridge retractor device, including bent cap 1, beam body 2 and Prefabricated assembled stretch
Structure, bent cap 1 connect two adjacent beam bodies 2, and bent cap 1 includes first end, lug boss and the second end being sequentially connected, convex
The height in the portion of rising is high compared with the height of first end, the second end, and one end and the first end or the second end of beam body 2 overlap phase
Even, the top of beam body 2 and the top flush of lug boss have gap between beam body 2 and lug boss.
Prefabricated assembled stretching structure includes the first telescopic section and of the center line symmetrical setting relative to lug boss
Two telescopic sections, have gap between the first telescopic section and the second telescopic section, the first telescopic section, the second telescopic section connect
Lug boss and beam body 2 are connect, the first telescopic section, the second telescopic section include prefabricated board 3 and interconnecting piece, and interconnecting piece connection is prefabricated
Plate 3 and beam body 2, prefabricated board 3 are made of steel fiber reinforced concrete material, and pre-buried steel hoop 4 and anchor plate is arranged in prefabricated board 3
5, anchor plate 5 is set to the one end of the first telescopic section or the second telescopic section far from interconnecting piece, and prefabricated board 3 also sets up circle
Hole, circular hole are arranged through prefabricated board 3 and anchor plate 5, and the axis of circular hole and the length direction of beam body 2 are perpendicular, and circular hole is located at
In the inner ring of steel hoop 4, setting perforation reinforcing bar 6 in circular hole, while perforation reinforcing bar 6 strengthens component strength, additionally it is possible to hold
The shearing action that load bridge is subject to, interconnecting piece setting connection reinforcing bar 7, connection reinforcing bar 7 are connected with steel hoop 4, and interconnecting piece uses
Cast in situs mode is made.
The steel reinforced concrete combined road-bridge retractor device of the application has gap between the first telescopic section and the second telescopic section
Form expansion joint, it is flexible to set up the lug boss for being placed in bent cap 1 separately, compared to the prior art in expansion joint setting in the two of bent cap 1
Side, The present invention reduces an expansion joint, Prefabricated assembled stretching structure can effectively prevent the not uneven of expansion joint two sides
Sedimentation guarantees the flatness of Prefabricated assembled stretching structure, reduces vehicle bump at bridge ends at expansion joint, is conducive to improve to drive a vehicle and relax
Appropriateness, the durability and service life for improving telescopic device.At the same time, pre-buried steel hoop 4 and anchor plate in prefabricated board 3
5, the durability of Prefabricated assembled stretching structure is improved, construction quality and construction efficiency are improved.
Wherein, Dustproof plastic cystosepiment 8, Dustproof plastic cystosepiment are set between the first telescopic section and the second telescopic section
Waterstop 9 is arranged in 8 bottom, and waterstop 9 is made of rubber material, prevents foreign matter from entering in expansion joint, while avoiding beam
Body 2 is by raindrop erosion.
Specifically, junction steel plate 10, junction steel plate 10 and anchoring are set between Dustproof plastic cystosepiment 8 and anchor plate 5
Steel plate 5 is connected, and swing tooth plate 11, swing tooth plate 11 and 10 phase of junction steel plate is arranged in the top of junction steel plate 10 and anchor plate 5
Even, the top surface of swing tooth plate 11 and bridge floor flush, Dustproof plastic cystosepiment 8 are clamped by the junction steel plate 10 of two sides, prevent mistake
Position, the setting of swing tooth plate 11 enhance the integraty of bridge.
In addition, prefabricated board 3 is connected with angle steel fixture 12, angle steel fixture 12 is bolted with prefabricated board 3, is bolted tight
Gu convenient for disassembly and assembly, the both ends of waterstop 9 are pressed on junction steel plate 10 by two angle steel fixtures 12 respectively, the angle clip of two sides
Tool 12 is fixed by waterstop 9, prevents waterstop 9 from failing.It should be noted that being located at two sides angle steel fixture 12 when original state
Between waterstop 9 length it is big compared with the distance between two sides angle steel fixture 12, waterstop 9 is made of flexible material in addition,
When the relative position of first telescopic section and the second telescopic section changes, it is ensured that waterstop 9 can play a role.
More specifically, sliding steel plate 13, sliding steel plate are arranged between the first telescopic section, the second telescopic section and lug boss
13 enhance the wearability of bent cap 1, and graphite powder is arranged between the first telescopic section, the second telescopic section and sliding steel plate 13, subtracts
Small frictional resistance guarantees that the first telescopic section and the second telescopic section can be slided smoothly, it is ensured that Prefabricated assembled stretching structure
It plays a role.In this embodiment, the both ends of sliding steel plate 13 extend to the top of two sides beam body 2, reduce friction resistance
While power, additionally it is possible to improve the structural strength of single unit system.
In this embodiment, screed-coat 14 is set between prefabricated board 3 and beam body 2, screed-coat 14 is made of mortar,
Ensure that the first telescopic section and the second telescopic section can smoothly be overlapped with beam body 2.Interconnecting piece includes post-cast strip 15, regulating course 16
With pave-load layer 17, regulating course 16 is set to the top of beam body 2, and regulating course 16 is made of concrete, and pave-load layer 17 is set to leveling
The top of layer 16, pave-load layer 17 are made of pitch material, and post-cast strip 15 is filled in regulating course 16, pave-load layer 17, prefabricated board 3 and looks for
Space between leveling 14, the top of pave-load layer 17, post-cast strip 15 top with bridge floor flush, connect reinforcing bar 7 through whole
Leveling 16, post-cast strip 15 are connected with anchor plate 5.
Further, arc one end and top of steel hoop 4 protrude from prefabricated board 3, and post-cast strip 15 is filled in annular
Between reinforcing bar 4 and prefabricated board 3, after the completion of interconnecting piece pours, it is more steady that steel hoop 4 connect interconnecting piece with prefabricated board 3
Gu improving overall structural strength.
In this embodiment, the quantity of circular hole is two, and two circular holes are set to steel hoop 4 close to lug boss
Side setting, perforation reinforcing bar 6 improves bridge structure intensity close to expansion joint setting.
In bridge construction process, firstly, in advance (cast-in-place concrete can also be used in plant produced in prefabricated board 3
Production method), by prefabricated board 3 carry out in-site installation, by screed between prefabricated board 3 and beam body 2 contact surface row be turned up and
It is levelling；Then, waterstop 9 is assembled, waterstop 9 is fixed on the prefabricated board 3 of expansion joint two sides using angle steel fixture 12, it will
Swing tooth plate 11 and junction steel plate 10 weld and make antirust treatment, and Dustproof plastic cystosepiment 8, adjustment activity are prevented in expansion joint
Tooth plate 11 is allowed to concordant with bridge deck surfaces；Junction steel plate 10 and anchor plate 5 are welded and fixed, by steel hoop 4 with connect steel
Muscle 7 is welded and fixed, and pours interconnecting piece, reaches specified intensity to concrete.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (9)
1. a kind of steel reinforced concrete combined road-bridge retractor device, it is characterised in that: including the flexible knot of bent cap, beam body and Prefabricated assembled
Structure, the bent cap connect two adjacent beam bodies, and the bent cap includes the first end being sequentially connected, lug boss and second
End, the height of the lug boss first end, the height of the second end are high, one end of the beam body with it is described
First end or the second end overlap joint are connected, the top flush at the top of the beam body and the lug boss, the beam
There is gap between body and the lug boss；
The Prefabricated assembled stretching structure includes the first telescopic section of the center line symmetrical setting relative to the lug boss
With the second telescopic section, there is gap, first telescopic section, institute between first telescopic section and the second telescopic section
It states the second telescopic section and connects the lug boss and the beam body, first telescopic section, second telescopic section wrap
Prefabricated board and interconnecting piece are included, the interconnecting piece connects the prefabricated board and the beam body, and the prefabricated board is by steel fiber reinforced concrete
Material is made, and pre-buried steel hoop and anchor plate is arranged in the prefabricated board, and the anchor plate is set to described first and stretches
Contracting part or the described one end of second telescopic section far from the interconnecting piece, the prefabricated board also set up circular hole, and the circular hole passes through
The prefabricated board and anchor plate setting are worn, the axis of the circular hole and the length direction of the beam body are perpendicular, described
Circular hole is located in the inner ring of the steel hoop, setting perforation reinforcing bar in the circular hole, the interconnecting piece setting connection reinforcing bar, institute
It states connection reinforcing bar to be connected with the steel hoop, the interconnecting piece is made of cast in situs mode.
2. steel reinforced concrete combined road-bridge retractor device according to claim 1, it is characterised in that: first telescopic section with
Dustproof plastic cystosepiment is set between second telescopic section, and waterstop, institute is arranged in the bottom of the Dustproof plastic cystosepiment
Waterstop is stated to be made of rubber material.
3. steel reinforced concrete combined road-bridge retractor device according to claim 2, it is characterised in that: the Dustproof plastic cystosepiment
Junction steel plate is set between the anchor plate, the junction steel plate is connected with the anchor plate, the junction steel plate with
Swing tooth plate is arranged in the top of the anchor plate, and the swing tooth plate is connected with the junction steel plate, the swing tooth plate
Top surface and bridge floor flush.
4. steel reinforced concrete combined road-bridge retractor device according to claim 2, it is characterised in that: the prefabricated board is connected with angle
Steel clamp tool, the angle steel fixture are bolted with the prefabricated board, and two angle steel fixtures are respectively by the two of the waterstop
End is pressed on the junction steel plate.
5. steel reinforced concrete combined road-bridge retractor device according to claim 1, it is characterised in that: first telescopic section,
Sliding steel plate, first telescopic section, second pars contractilis are set between second telescopic section and the lug boss
Divide and graphite powder is set between the sliding steel plate.
6. steel reinforced concrete combined road-bridge retractor device according to claim 5, it is characterised in that: the prefabricated board and the beam
Screed-coat is set between body, and the screed-coat is made of mortar, and the both ends of the sliding steel plate extend to the top of the beam body.
7. steel reinforced concrete combined road-bridge retractor device according to claim 6, it is characterised in that: the interconnecting piece pours after including
Band, regulating course and pave-load layer, the regulating course are set to the top of the beam body, and the regulating course is made of concrete, described
Pave-load layer is set to the top of the regulating course, and the pave-load layer is made of pitch material, and the post-cast strip is filled in described whole
Space between leveling, the pave-load layer, the prefabricated board and the screed-coat, the top of the pave-load layer, the post-cast strip
Top with bridge floor flush, the connection reinforcing bar is connected through the regulating course, the post-cast strip with the anchor plate.
8. steel reinforced concrete combined road-bridge retractor device according to claim 7, it is characterised in that: the arc of the steel hoop
One end and top protrude from the prefabricated board, and the post-cast strip is filled between the steel hoop and the prefabricated board.
9. steel reinforced concrete combined road-bridge retractor device according to claim 1-8, it is characterised in that: the circular hole
Quantity is two, and two circular holes are set to the steel hoop and are arranged close to the side of the lug boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565029.7A CN110184907B (en) | 2019-06-27 | 2019-06-27 | Steel-concrete combined bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565029.7A CN110184907B (en) | 2019-06-27 | 2019-06-27 | Steel-concrete combined bridge expansion device |
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| CN110184907A true CN110184907A (en) | 2019-08-30 |
| CN110184907B CN110184907B (en) | 2021-07-13 |
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| CN201910565029.7A Active CN110184907B (en) | 2019-06-27 | 2019-06-27 | Steel-concrete combined bridge expansion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111877141A (en) * | 2020-07-08 | 2020-11-03 | 唐峰 | Novel pier structure |
| CN115961544A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled expansion device suitable for small and medium-span bridges |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111877141A (en) * | 2020-07-08 | 2020-11-03 | 唐峰 | Novel pier structure |
| CN115961544A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled expansion device suitable for small and medium-span bridges |
| CN115961544B (en) * | 2023-01-16 | 2023-08-18 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled telescopic device suitable for middle-small span bridge |
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| CN110184907B (en) | 2021-07-13 |
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