A kind of heavy type twin beams modulus bridge expansion device
Technical field
The present invention relates to bridge construction technology fields, more particularly to a kind of heavy twin beams modulus bridge expansion device.
Background technology
To meet the requirement of bridge floor deformation, usually between two beam-ends, between beam-ends and abutment or the articulated position of bridge
Upper setting bridge expanssion joint, it is desirable that expansion joint can freely stretch, securely in both directions parallel, perpendicular to bridge axes
Reliably, it should be smoothed out when vehicle is run over, without kick and noise;It wants to prevent rainwater and rubbish soil from penetrating into obstruction;Installation, inspection
Look into, conserve, eliminate dirt will simple and convenient.At setting expansion joint, railing will be disconnected with deck paving, bridge expanssion joint
Effect be to adjust the displacement and connection by between the superstructure caused by vehicular load and bridge construction material, in bridge
It needs that bridge extension joint is arranged at expansion joint.
Telescopic device is the important composition component of bridge, and what the quality of performance directly influenced bridge telescopicing performance can
It leans on, the safety of car operation.Telescopic device, first, easy ting produce safety accident, suspends traffic once damaging;Second is that being fallen along seam
Dirt cause the corrosion of bridge substructure.Heavy vehicle is big to telescopic device aging effects, every year since local function is made
At modular expansion device damage quantity it is also very much.The predominantly middle longeron of the load-supporting part of modulus bridge expansion device, branch
Hold crossbeam and bearing, design size and bearing cross beam the spacing arrangement of middle longeron and bearing cross beam are marked essentially according to country
Quasi- payload values are designed, however China's traffic has the characteristics that heavy duty, high speed, vehicle flowrate are big, the external force that these factors generate
The instant impact to telescopic device can directly be increased, bridge extension joint is chronically at fatigue state, to cause middle longeron
And bearing cross beam fracture.In existing modular expansion device, bearing by structure space due to being limited, pressure-bearing surface face
Product is smaller, is the weak link in modular expansion device stressed member, does not adapt to the frequent impact of heavy vehicle, easily cause
Damage.
Therefore, how to change modulus bridge expansion device in the prior art bear heavy duty ability it is poor, be easily damaged
The phenomenon that, it is those skilled in the art's urgent problem to be solved.
Invention content
The object of the present invention is to provide a kind of heavy twin beams modulus bridge expansion devices, are deposited with solving the above-mentioned prior art
The problem of, improve the bearing capacity of modulus bridge expansion device, extend the service life of telescopic device.
To achieve the above object, the present invention provides following schemes:The present invention provides a kind of heavy twin beams modulus type bridge
Telescopic device, including:
Twin beams load bearing system, the twin beams load bearing system include multiple bearing units, and middle longeron arranged side by side passes through more
A bearing unit has gap between the adjacent middle longeron, rubber seal tape is arranged between the adjacent middle longeron, often
A bearing unit includes the first displacement case and second displacement case, is all provided in the first displacement case and the second displacement case
Set bearing cross beam, the top and bottom of the bearing cross beam are correspondingly arranged bearing and compressing support respectively, described first
Move the bearing in case, the compressing support and the bearing in the second displacement case, compression branch
Seat interlaced arrangement, the bearing are connected with the middle longeron, and side longeron, the side longeron point is arranged in the middle longeron both sides
It is not connected with the first displacement case, the second displacement case;
Displacement control system, the displacement control system be set to the first displacement case and the second displacement case it
Between, the displacement control system is connected with the middle longeron, the side longeron, the displacement control system can enable it is described in
Gap uniformity between longeron, between the middle longeron and the side longeron;
Anchor system, one end of the anchor system are connected with the side longeron, and the other end of the anchor system can
It is connected with the embedded bar of bridge.
Preferably, the bearing is set between the bearing cross beam and the middle longeron.
Preferably, steel liner plate is set between the bearing and the middle longeron.
Preferably, the bearing and the compressing support are in arranged for interval on the bearing cross beam.
Preferably, the twin beams load bearing system further includes hanger structure, and the middle longeron is fixed by the hanger structure
On the bearing cross beam.
Preferably, the first displacement case and the second displacement case include two symmetrically arranged half babinets, described
Half babinet is U-shaped, and the opening of two half babinets is oppositely arranged, and the both ends of the bearing cross beam are respectively protruding into described in two
The inside of half babinet, the half chests body is interior to be arranged the bearing and the compressing support, and half babinet is held by described
Pressure bearing and the compressing support are connected with the side longeron and the bearing cross beam.
Preferably, the rubber seal tape is set between the side longeron and the middle longeron.
Preferably, the displacement control system includes steel hinge arrangement, the steel hinge arrangement respectively with the middle longeron
It is connected with the side longeron.
The present invention achieves following technique effect compared with the existing technology:The heavy twin beams modulus type bridge of the present invention is flexible
Device, including twin beams load bearing system, twin beams load bearing system include multiple bearing units, and middle longeron arranged side by side passes through multiple hold
Weight unit has gap between adjacent middle longeron, is arranged rubber seal tape between adjacent middle longeron, and each bearing unit includes the
One displacement case and second displacement case are respectively provided with bearing cross beam, the top of bearing cross beam in the first displacement case and second displacement case
It is correspondingly arranged bearing and compressing support, bearing, compressing support and second in the first displacement case respectively with bottom
Bearing, compressing support interlaced arrangement in shifting case, bearing are connected with middle longeron, and side longeron is arranged in middle longeron both sides,
Side longeron is connected with the first displacement case, second displacement case respectively.It is horizontal that bearing is respectively provided in the first displacement case and second displacement case
Beam, twin-spar construction enable the carrying of telescopic device more safe and reliable, and bearing and pressure is respectively set in the both sides of bearing cross beam
Tight bearing, in addition, the bearing, compressing support in the first displacement case and bearing, the compressing support in second displacement case
Interlaced arrangement provides enough structure spaces for bearing and compressing support, can increase bearing according to heavy duty requirements
Pressure-bearing surface area, improve bridge extension joint bear heavy duty ability.
Description of the drawings
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 present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the heavy twin beams modulus bridge expansion device of the present invention;
Fig. 2 be Fig. 1 in along A-A to cutting structural schematic diagram;
Fig. 3 is the cutting structural schematic diagram along B-B direction in Fig. 1;
Fig. 4 be Fig. 1 in along C-C to cutting structural schematic diagram;
Fig. 5 be Fig. 3 in along D-D to cutting structural schematic diagram;
Wherein, 1 is twin beams load bearing system, and 2 be displacement control system, and 3 be anchor system, and 4 be side longeron, and 5 be middle longeron,
6 be rubber seal tape, and 7 be hanger structure, and 8 be the first displacement case, and 9 be second displacement case, and 10 be bearing cross beam, and 11 be pressure-bearing branch
Seat, 12 be compressing support, and 13 be steel liner plate.
Specific implementation mode
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 describes, 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 heavy twin beams modulus bridge expansion devices, are deposited with solving the above-mentioned prior art
The problem of, improve the bearing capacity of modulus bridge expansion device, extend the service life of telescopic device.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Please referring to Fig.1-5, wherein Fig. 1 is the structural schematic diagram of the heavy twin beams modulus bridge expansion device of the present invention,
Fig. 2 be Fig. 1 in along A-A to cutting structural schematic diagram, Fig. 3 be Fig. 1 in along B-B direction cutting structural schematic diagram, Fig. 4 Fig. 1
It is middle along C-C to cutting structural schematic diagram, Fig. 5 be Fig. 3 in along D-D to cutting structural schematic diagram.
The present invention provides a kind of heavy twin beams modulus bridge expansion device, including:
Twin beams load bearing system 1, twin beams load bearing system 1 include multiple bearing units, and middle longeron 5 arranged side by side passes through multiple
There is between adjacent middle longeron 5 bearing unit gap, adjacent middle longeron 5 rubber seal tape 6 is arranged, and each bearing unit includes
First displacement case 8 and second displacement case 9 are respectively provided with bearing cross beam 10, bearing cross beam in first displacement case 8 and second displacement case 9
10 top and bottom are correspondingly arranged bearing 11 and compressing support 12 respectively, bearing 11, pressure in the first displacement case 8
Tight bearing 12 and the bearing 11 in second displacement case 9,12 interlaced arrangement of compressing support, bearing 11 and 5 phase of middle longeron
Even, side longeron 4 is arranged in 5 both sides of middle longeron, and side longeron 4 is connected with the first displacement case 8, second displacement case 9 respectively.
Bearing cross beam 10 is respectively provided in the first displacement case 8 and second displacement case 9, twin-spar construction enables the carrying of telescopic device
It is more safe and reliable, bearing 11 and compressing support 12 is respectively set in the top and bottom of bearing cross beam 10, in addition, first
Bearing 11, compressing support 12 in displacement case 8 and bearing 11, the compressing support 12 in second displacement case 9 interlock cloth
It sets, enough structure spaces is provided for bearing 11 and compressing support 12, bearing 11 can be increased according to heavy duty requirements
Pressure-bearing surface area, improve bridge extension joint bear heavy duty ability.
Displacement control system 2, displacement control system 2 are set between the first displacement case 8 and second displacement case 9, displacement control
System 2 processed is connected with middle longeron 5 and side longeron 4, during displacement control system 2 can enable between longeron 5, middle longeron 5 and side it is vertical
Gap uniformity between beam 4;Displacement control system 2 is set between the first displacement case 8 and second displacement case 9, makes each middle longeron
5, the uniformity of Bit andits control evenly, is improved in the gap between side longeron 4.
One end of anchor system 3, anchor system 3 is connected with side longeron 4, and the other end of anchor system 3 can be with bridge
Embedded bar is connected.
Specifically, bearing 11 is set between bearing cross beam 10 and middle longeron 5, the bearing capacity of longeron 5 in enhancing.
Wherein, steel liner plate 13 is set between bearing 11 and middle longeron 5, enhances the whole heavily loaded ability of telescopic device.
More specifically, bearing 11 and compressing support 12 are in arranged for interval on bearing cross beam 10, it is 11 He of bearing
Compressing support 12 provides enough structure spaces.
Further, twin beams load bearing system 1 further includes hanger structure 7, and middle longeron 5 is fixed on bearing by hanger structure 7
On crossbeam 10, the globality of telescopic device is promoted.
In addition, the first displacement case 8 and second displacement case 9 include two symmetrically arranged half babinets, half babinet is U
The opening of type, two and half babinets is oppositely arranged, and the both ends of bearing cross beam 10 are respectively protruding into the inside of two and half babinets, in half chests body
Bearing 11 and compressing support 12 are also set up, it is specific referring to FIG. 2, being set to the bearing 11 at 10 top of bearing cross beam
It is connected with middle longeron 5, the compressing support 12 for being located at 10 top of bearing cross beam is connected with side longeron 4, bearing 11 and compression branch
Being arranged depending on the direction of transfer of pressure for seat 12, improves telescopic device load-bearing safety.
Further, rubber seal tape 6 is set between side longeron 4 and middle longeron 5, and rubber seal tape 6 is deformable, Neng Goubao
Demonstrate,prove telescopic device normal displacement, while ensuring leakproofness, avoid the sundries such as rainwater by the gap between middle longeron 5, side longeron 4 into
Enter to damage bridge.
Displacement control system 2 includes steel hinge arrangement, and steel hinge is connected with middle longeron 5 and side longeron 4, disclosure satisfy that respectively
Expansion joint it is parallel, perpendicular to bridge axes both direction it is flexible, while ensureing gap uniformity, in addition, the present invention its
In his specific implementation mode, displacement control system 2 can also use polyurethane spring structure or shear-type rubber spring structure, structure
Reliably, easy to implement.
Each bearing unit of the twin beams load bearing system 1 of the present invention includes the first displacement case 8 and second displacement case 9, each
Displacement case includes a bearing cross beam 10, several bearings 11 and compressing support 12, between bearing 11 and compressing support 12
Every arrangement, position is provided between the side longeron 4 and middle longeron 5 between two displacement casees of same unit twin beams load bearing system 1
Control system 2 is moved, said structure design makes twin-spar construction carrying more safe and reliable, and displacement control system 2 is arranged in same
Between two displacement casees of unit twin beams load bearing system 1, more preferably, each shaped steel gap is evenly for Bit andits control state.Second, first
It is respectively arranged with compressing support 12 and bearing above and below bearing cross beam 10 in displacement case 8 and second displacement case 9
11;First displacement case 8, second displacement case 9 are fixedly connected with side longeron 4;Bearing 11 and compressing support 12 match,
In two bearing cross beams, the 10 top and bottom interlaced arrangement of each bearing unit, such structure is bearing 11 and compressing support 12
Enough structure spaces are provided, the pressure-bearing surface area of bearing 11 can be increased according to heavy duty requirements.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention;Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present 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.