CN108677679A - Overhead steel reinforced concrete combination beam - Google Patents
Overhead steel reinforced concrete combination beam Download PDFInfo
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- CN108677679A CN108677679A CN201810763285.2A CN201810763285A CN108677679A CN 108677679 A CN108677679 A CN 108677679A CN 201810763285 A CN201810763285 A CN 201810763285A CN 108677679 A CN108677679 A CN 108677679A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 155
- 239000010959 steel Substances 0.000 title claims abstract description 155
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 47
- 239000004567 concrete Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 11
- 239000011376 self-consolidating concrete Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000011210 fiber-reinforced concrete Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 32
- 238000013461 design Methods 0.000 abstract description 7
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Classifications
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of overhead steel reinforced concrete combination beam, including at least two separated steel casees, concrete layer has been poured on each roof box；Each separated steel case is laterally arranged in order along beam, spliced by horizontal-associate mechanism between per adjacent two separated steels case, horizontal-associate mechanism includes the multiple horizontal-associate groups being longitudinally arranged in order along beam, and each horizontal-associate group includes the polylith horizontal-associate plate spliced successively laterally across splice plate and bolt along beam and each horizontal-associate plate is connected with the roof box of corresponding separated steel case respectively.It is assemblied into unjointed beam using separated steel case and by horizontal-associate mechanism by each separated steel case, it is wide required bridge can be freely formed by the length of each horizontal-associate plate of adjusting, can be completely the same to the main tank construction of the wide bridge span structure of different bridges, realize standardized designs, factorial praluction, prefabricated construction.Roof box can be used as the template of concreting, facilitate site operation, the concrete box top plate of use that can play the role of reducing steel bridge construction noise.
Description
Technical field
The invention belongs to technical field of rail traffic, and in particular to a kind of overhead steel reinforced concrete combination beam.
Background technology
Modern tram is a kind of urban track traffic of low freight volume, between light rail and bus, is had low
Noise, low vibration save the features such as energy, comfort and convenient, beautiful environmental protection.It is built or compare in the city for building modern tram
It is more, and have the tendency that accelerated development.Tramway is mainly paved on urban road surfaces, and fortune is mixed with other traffic above-grounds
Overhead section is arranged in row, a small number of tramcars, and overhead section should preferentially use simple, short construction period, interfere urban transportation
Structure small, overall life cycle cost is low, environmentally protective, however the overhead section of tramcar is handed over reference to city rail mostly at present
Lead to overhead block design and uses freely-supported cast-in-place box beam.Long in time limit existing for cast-in-situ box girder, dead load is big, working measure
It is more, big to existing Coherent traffic noise, not environmentally the problems such as be the factor for perplexing orbit traffic overhead structure model selection, propose a kind of structure
Simply, adaptable rail traffic beam type is extremely urgent task.
Field of engineering technology should implement innovation, coordination, green, opening, shared idea of development, although domestic hand in track
Logical Superstructure Construction method is also innovated and has been optimized, and takes whole opening prefabricated erection method respectively, Precast Concrete Segmental Bridges method, moves
The construction methods such as dynamic model frame method, but such construction method does not accomplish green, cycle, low carbon development yet, above-mentioned construction method is still
Have the shortcomings that construct early investment it is larger, construction process requirement is high, construction total body tissue, the work difficulty of coordination it is larger.
VIADUCTS IN URBAN RAIL TRANSIT girder construction does not use steel construction on a large scale, not only due to overhead route sound source position
Height, influence of noise range is big, propagation distance is remote, penetration power is strong, brings great harm to the physical and mental health of people, and track is handed over
Steel bridge on logical circuit is compared with other rail traffic structure objects, and the noise generated when vehicle is run is larger, the reason is that steel
Bridge structure division can occur to vibrate and cause noise.There can be steel structure bridge using one kind but also reduce steel bridge to make an uproar
The structure of sound is the research direction that rail traffic bridge structure is paid close attention to always.
Rail traffic switch area needs to be arranged overhead section sometimes, and switch area bridge width changes greatly, engineer encounter it is above-mentioned
In the case of can only select mostly use integral support cast-in-situ box girder, often it is above-mentioned can become control elevated project node engineering,
Engineering construction speed is relatively slow, quality is not as good as girder steel is easy to control, measure expense is high, construction site takes up an area that big, the time is long, to city
City's environment and traffic impact are larger.
What steel box-girder was usually taken is making-transport in factory-on-site hoisting assembly and welding, wherein reducing welding for steel structure
Residual stress be related to structure security performance and construction quality quality be issues that need special attention, and steel box-girder welding is applied
In work, it will usually be influenced by various factors, the underproof weld seam such as stomata, overlap in steel box-girder weld seam, solution scene is applied
Weldquality problem has become steel box-girder matter of utmost importance in work.
Invention content
The present embodiments relate to a kind of overhead steel reinforced concrete combination beams, can at least solve the segmental defect of the prior art.
The present embodiments relate to a kind of overhead steel reinforced concrete combination beam, including at least two separated steel casees, each described point
Include roof box, bottom plate and two blocks of webs from formula steel case, the roof box, the bottom plate connect to be formed with two webs
Body structure has poured concrete layer on each roof box；
Each separated steel case is laterally arranged in order along beam, passes through horizontal-associate machine between every adjacent two separated steel case
Structure splices, and the horizontal-associate mechanism includes the multiple horizontal-associate groups being longitudinally arranged in order along beam, and each horizontal-associate group includes along beam cross
To the polylith horizontal-associate plate and each horizontal-associate plate spliced successively by splice plate and bolt respectively with the corresponding separated steel
The roof box of case connects.
As one of embodiment, two blocks of the head and the tail horizontal-associate plate of each horizontal-associate group also respectively with corresponding described point
Web connection from formula steel case.
As one of embodiment, in each horizontal-associate group of the horizontal-associate mechanism, including it is located at two groups of beam both ends
Beam-ends horizontal-associate group, and the height of each horizontal-associate plate of the beam-ends horizontal-associate group is identical as the described height of web.
Include multigroup between beam both ends in each horizontal-associate group of the horizontal-associate mechanism as one of embodiment
The height of middle part horizontal-associate group, each horizontal-associate plate of each middle part horizontal-associate group is respectively less than the height of the web.
Further include more between beam both ends in each horizontal-associate group of the horizontal-associate mechanism as one of embodiment
Group reinforces horizontal-associate group, and the height of each each horizontal-associate plate for reinforcing horizontal-associate group is identical as the described height of web.
As one of embodiment, along beam longitudinal direction, there is at least one set of middle part between every adjacent two reinforcement horizontal-associate group
Horizontal-associate group.
As one of embodiment, two of beam lateral edge are equipped with outrigger and cantilever, wherein the outrigger with it is adjacent
The web of the separated steel case is connected with top plate, and the cantilever is fixed on the top plate bottom of the adjacent separated steel case,
Along beam, laterally the cantilever is located on the outside of the outrigger and the two is spliced by splice plate and bolt.
As one of embodiment, each horizontal-associate group is including three blocks of horizontal-associate plates and two stitching portions are respectively close to correspondence
The two separated steel casees.
As one of embodiment, the concrete layer includes cast-in-place steel fiber concrete layer, and is set on the roof box
There is the shear connector being connect with steel fiber reinforced concrete.
As one of embodiment, the concrete layer further include pour above the cast-in-place steel fiber concrete layer from
Air-free concrete layer, and in being equipped with precast track plate on the self-compacting concrete layer.
The embodiment of the present invention at least has the advantages that：
Overhead steel reinforced concrete combination beam provided by the invention, using separated steel case and by horizontal-associate mechanism by each separated steel case
It is assemblied into unjointed beam, it is wide to freely form required bridge by adjusting the length (length i.e. in beam transverse direction) of each horizontal-associate plate,
Can be completely the same to the main tank construction of the wide bridge span structure of different bridges, it is achieved that standardized designs, factorial praluction, dress
It constructs with changing.Roof box can be used as the template of concreting, facilitate site operation, and the concrete box top plate of use, which can play, to be subtracted
The effect of small steel bridge construction noise.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the planar structure schematic diagram of steel reinforced concrete combination beam provided in an embodiment of the present invention；
Fig. 2 is the standard cross-section structural schematic diagram of standard beam section provided in an embodiment of the present invention；
Fig. 3 is the cross-sectional configuration schematic diagram that the middle part horizontal-associate group of standard beam section provided in an embodiment of the present invention is coupled；
Fig. 4 is the cross section knot that beam-ends horizontal-associate group/reinforcement horizontal-associate group of standard beam section provided in an embodiment of the present invention is coupled
Structure schematic diagram；
Fig. 5 is the cross-sectional configuration schematic diagram that the middle part horizontal-associate group of track switch provided in an embodiment of the present invention section is coupled；
Fig. 6 is the cross-sectional configuration that beam-ends horizontal-associate group/reinforcement horizontal-associate group of track switch provided in an embodiment of the present invention section is coupled
Schematic diagram.
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 all other
Embodiment shall fall within the protection scope of the present invention.
Such as Fig. 1-Fig. 6, the embodiment of the present invention provides a kind of overhead steel reinforced concrete combination beam, including at least two separated steel casees 1,
Each separated steel case 1 includes roof box 101, bottom plate 102 and two blocks of webs 103, the roof box 101, the case
Bottom plate 102 connect to form body structure with two webs 103, and concrete layer has been poured on each roof box 101；Each institute
It states separated steel case 1 to be laterally arranged in order along beam, be spliced by horizontal-associate mechanism between every adjacent two separated steel case 1, institute
It includes the multiple horizontal-associate groups being longitudinally arranged in order along beam to state horizontal-associate mechanism, and each horizontal-associate group includes along beam laterally across splicing
The polylith horizontal-associate plate and each horizontal-associate plate that plate 6 and bolt 7 splice successively respectively with the roof box of corresponding separated steel case 1
101 connections.Wherein, it is easy-to-understand to, roof box 101, bottom plate 102 and two webs 103 are steel plate, and four using welding
Mode is connected as one, which is also a steel box-girder formula structure.Pass through a spelling between adjacent two blocks of horizontal-associate plates
Fishplate bar 6 and bolt 7 splice, and usually, the docking of two horizontal-associate plates, i.e., the adjacent end of the two, which is in direct contact, is mutually stitched together, and splices
The plate face of plate 6 is parallel with the plate face of two horizontal-associate plates, and the plate face of a part of splice plate 6 contacts patch with the plate face of a wherein horizontal-associate plate
It leans on, the plate face of a part of splice plate 6 is contacted with the plate face of another horizontal-associate plate and reclined, and is designed on the splice plate 6 and two horizontal-associate plates
7 pilot hole of bolt, to be assembled together by multiple bolts 7.Two blocks of horizontal-associate plates are the difference in every group of horizontal-associate group from beginning to end
Close to two blocks of horizontal-associate plates of corresponding two separated steel casees 1, which is preferably point with respective side respectively
Weld together from formula steel case 1.It is apparent from ground, the plate face and the plate face of web 103 and roof box 101 of above-mentioned horizontal-associate plate are perpendicular.
Preferably, above-mentioned bolt 7 is all made of high-strength bolt 7, and the connection of high-strength bolt 7 avoids building-site welding, reduces steel construction weldering
Residual stress is connect, is avoided that weldquality problem in site operation, ensures connection structure strength and stability, improves assembly construction
Efficiency.
It is further preferred that such as Fig. 2-Fig. 6, two blocks of the head and the tail horizontal-associate plate of each horizontal-associate group also respectively with it is corresponding
The separated steel case 1 web 103 connect, to ensure connection structure strength and stability.
It is further preferred that such as Fig. 2-Fig. 6, in each separated steel case 1, on bottom plate 102 and two webs 103
Longitudinal stiffener 105 is set, to improve structural strength；End diaphragm plate and middle diaphragm plate can be set in the middle part of beam-ends and beam, each
Vertical ribbed stiffener 104 can be set on diaphragm plate, to improve structural strength.
Such as Fig. 1-Fig. 6, in the present embodiment, it is preferable that the quantity of above-mentioned separated steel case 1 is two, spliced structure
High stability.Each separated steel case 1 can be monolithic green production installation, can also segmented production assembly, wherein to divide
The mode of segment production assembly can be assembled into the overhead section steel reinforced concrete combination beam of different length convenient for construction.
Overhead steel reinforced concrete combination beam provided in this embodiment, using separated steel case 1 and by horizontal-associate mechanism by each separate type
Steel case 1 is assemblied into unjointed beam, can be freely formed by the length (length i.e. in beam transverse direction) of each horizontal-associate plate of adjusting required
Bridge is wide, can be completely the same to the main tank construction of the wide bridge span structure of different bridges, it is achieved that standardized designs, factory's metaplasia
Production, prefabricated construction.Roof box 101 can be used as the template of concreting, facilitate site operation, the concrete box top plate of use
101 can play the role of reducing steel bridge construction noise.
Compared with conventional cast-in-place concrete box girder：The overhead steel reinforced concrete combination beam can mitigate dead weight, reduce earthquake effect,
Reduce sectional dimension of members, increase effective use space, reduce foundation cost, saves high-altitude branch die process and template, shortening are applied
The work period increases the ductility etc. of component and structure.The overhead steel reinforced concrete combination beam realizes the standardization of overhead section superstructure
Design is factory produced, prefabricated construction, and the long in time limit, dead load for solving conventional overhead cast-in-situ box girder is big, working measure
It is more, big to existing Coherent traffic noise, not environmentally the problems such as.
Compared with steel box girder bridge girder construction：The overhead steel reinforced concrete combination beam can reduce steel using amount, increase rigidity, increase steady
Qualitative and globality reduces steel construction noise, the apyrous of enhancing structure and durability etc..And with the steel of traditional fielding welding
Box beam compares, and steel reinforced concrete combination beam takes high-strength bolt 7 to connect to the maximum extent in building-site, so as to avoid building-site
Welding, the case where welding for steel structure residual stress can be reduced and building-site weldquality is avoided to be difficult to meet Eligibility requirements.
As it can be seen that overhead steel reinforced concrete combination beam provided in this embodiment can efficiently solve uses cast-in-place concrete in the prior art
The overhead disadvantage of box beam or steel box-girder.
The structure for connecting above-mentioned overhead steel reinforced concrete combination beam, such as Fig. 1, Fig. 4 and Fig. 6, each horizontal-associate of the horizontal-associate mechanism
In group, including two groups of beam-ends horizontal-associate groups 202 at beam both ends are located at, and each horizontal-associate plate of the beam-ends horizontal-associate group 202
Height it is identical as the height of the web 103.It is apparent from ground, above-mentioned beam-ends is along two ends of the longitudinal steel reinforced concrete combination beam of beam
Portion；The height of horizontal-associate plate and the height of web 103 be vertically on plate body length.By the way that beam-ends horizontal-associate group is arranged
202, the torque of bridge on the one hand can be resisted, torque and horizontal force are transmitted on the bearing of steel reinforced concrete combination beam；On the other hand,
Play the role of lateral support in floorings end.
The structure for connecting above-mentioned overhead steel reinforced concrete combination beam, such as Fig. 1, Fig. 3 and Fig. 5, each horizontal-associate of the horizontal-associate mechanism
Include multigroup middle part horizontal-associate group 201 between beam both ends, each horizontal-associate plate of each middle part horizontal-associate group 201 in group
Height be respectively less than the height of the web 103.Above-mentioned middle part horizontal-associate group 201 can function as follows：(1) each separation is prevented
Formula steel case 1 rolls unstability；(2) play the role of load distribution so that each 1 stress of separated steel case is more uniform；(3) it is detached with each
Formula steel case 1 and lateral bracing Special composition truss are to resist horizontal loading；It (4) can be to separated steel case when bridge installation is set up
1 is positioned.
The structure for connecting above-mentioned overhead steel reinforced concrete combination beam, such as Fig. 1, Fig. 4 and Fig. 6, each horizontal-associate of the horizontal-associate mechanism
It further include multigroup reinforcement horizontal-associate group 203 between beam both ends in group, and each each cross for reinforcing horizontal-associate group 203
The height of yoke plate is identical as the height of the web 103.Above-mentioned reinforcement horizontal-associate group 203 can function as follows：(1) bridge is resisted
The torque of beam reinforces the ability that span centre resists torque；(2) 1 anti-roll capability of separated steel case is strengthened；(3) it can not only play
The effect of load distribution so that each 1 uniform force of separated steel case, and 1 relative deformation of separated steel case can also be prevented
Cause floorings stress unfavorable greatly.Usually, under the connection of above-mentioned middle part horizontal-associate group 201 effect, it is ensured that the steel reinforced concrete
The structural strength and stability of combination beam, but overhead steel reinforced concrete combination beam provided in this embodiment except can be applied to automobile it is overhead,
BRT is mainly also applied to the rail traffics such as tramcar with outside overhead wait, and since Repeated-load of High-speed Track Vehicles is big compared with carload,
By the way that above-mentioned reinforcement horizontal-associate group 203 is arranged, it can effectively reinforce the performances such as the anti-torsion of the steel reinforced concrete combined beam structure.
It is preferably arranged for interval per each middle part horizontal-associate group 201 between adjacent two separated steels case 1, it is each to reinforce horizontal-associate group
203 be preferably also arranged for interval, in the case where ensureing steel reinforced concrete combined beam structure performance, to reduce steel dosage, mitigate beam certainly
Weight.It is further preferred that such as Fig. 1, along beam longitudinal direction, per adjacent two the reinforcements horizontal-associate group 203 between have at least one set it is described in
Portion's horizontal-associate group 201；Wherein, more Preferable scheme is that, reinforce the middle part horizontal-associate group 201 between horizontal-associate group 203 per adjacent two
Quantity is identical, in the embodiment illustrated in fig. 1, reinforces having two groups of middle part horizontal-associate groups 201 between horizontal-associate group 203 per adjacent two.
Using middle part horizontal-associate group 201 and the structure for reinforcing 203 arranged crosswise of horizontal-associate group, each of the steel reinforced concrete combination beam can be further increased
1 anti-roll capability of separated steel case, torque resistant ability, anti-weight bearing power, and make each 1 stress of separated steel case more uniform.
Overhead steel reinforced concrete combination beam provided in this embodiment is acted on by the composite joint of various horizontal-associate groups so that each separation
It is whole that formula steel case 1, which is coupled, between separated steel case 1, between each horizontal-associate plate cooperative bearing and mutually keep in check, joint distribution lotus
It carries, structural strength, anti-roll capability, torque resistant ability and the anti-weight bearing power of the steel reinforced concrete combination beam is effectively improved, to protect
Demonstrate,prove its application effect and service life.
As preferred embodiment, the overhead girder that overhead steel reinforced concrete combination beam provided in this embodiment can be used as track switch section makes
With so that overhead section Standard Beam section and track switch section realize the mark of overhead section superstructure using unified fabricated construction
Standardization design, factorial praluction and prefabricated construction, and landscape effect is preferable.Preferably, such as Fig. 5 and Fig. 6, in track switch
Section, the splicing structure of each horizontal-associate group are as follows：Each horizontal-associate group is including three blocks of horizontal-associate plates and two stitching portions are respectively close to corresponding
Two separated steel casees 1, in three blocks of horizontal-associate plates, including two pieces of short yoke plates and a block length yoke plate, two pieces of short yoke plates respectively with it is corresponding
Two separated steel casees 1 weld, and long yoke plate both ends are spliced with two short yoke plates respectively.Using the track switch section bridge of the structure, a side
Face horizontal-associate group length flexible adjustment is suitable for switch area bridge width and changes big characteristic, and on the other hand, stitching portion is close to separation
Formula steel case 1 can improve 1 torque resistant ability of separated steel case and anti-roll capability, ensure the stability of switch area bridge structure
And reliability.
Certainly, the spliced horizontal-associate group structure of above-mentioned three blocks of horizontal-associate plates is also applied for standard beam section.In the present embodiment, such as
Fig. 3 and Fig. 4, preferably, in standard beam section, each horizontal-associate group includes the beam lateral length phase of two blocks of horizontal-associate plates and two horizontal-associate plates
Together, i.e., the stitching portion of two blocks of horizontal-associate plates is located among two separated steel casees 1, the cross identical as the spacing of two separated steel casees 1
Load is evenly distributed between being coupled structure two separated steel casees 1 of guarantee, and 1 relative deformation of separated steel case can be prevented excessive and caused
Floorings stress is unfavorable.
The structure for advanced optimizing above-mentioned overhead steel reinforced concrete combination beam, such as Fig. 5 and Fig. 6, in track switch beam section, two cross of beam
It is equipped with outrigger 8 and cantilever 9 to edge, wherein the web 103 and top plate of the outrigger 8 and the adjacent separated steel case 1
Connection, the cantilever 9 is fixed on the top plate bottom of the adjacent separated steel case 1, along beam laterally the cantilever 9 be located at it is described
On the outside of outrigger 8 and the two passes through splice plate 6 and bolt 7 splices.Splicing construction between cantilever 9 and outrigger 8 and above-mentioned horizontal-associate
Splicing construction between plate is identical, does not repeat herein；It connects bolt 7 and preferably also uses high-strength bolt 7.By cantilever 9, choose
Length independent assortment between beam 8 and each horizontal-associate plate is adjusted, and can reach different deck-sidings, so as to easily adapt to track switch
Area's bridge width changes characteristic greatly.
Certainly, the structure of above-mentioned setting outrigger 8 and cantilever 9 is also applied for standard beam section.As Fig. 2 as needed also can be only
Setting outrigger 8 is not provided with outrigger 8 and cantilever 9.
As the preferred structure of overhead steel reinforced concrete combination beam provided in this embodiment, such as Fig. 2-Fig. 6, the concrete layer includes
Cast-in-place steel fiber concrete layer 301, and the shear connector 1011 being connect with steel fiber reinforced concrete is equipped in the roof box 101,
The shear connector 1011 preferably uses PBL shear connectors 1011, and (PBL shear connectors 1011 are not made in detail herein for state of the art
Solution).By reserving shear connector 1011 on roof box 101, steel fiber concrete layer 301 can more be firmly mounted to steel case
Liang Shang ensures the connection structure intensity with steel fiber concrete layer 301, can be effectively reduced the noise of the steel reinforced concrete combination beam.
It is further preferred that such as Fig. 2-Fig. 6, the concrete layer further includes pouring above the cast-in-place steel fiber concrete layer 301
Self-compacting concrete layer 302, and in being equipped with precast track plate 5 on the self-compacting concrete layer 302, wherein it is above-mentioned from
The width of air-free concrete layer 302 is preferably less than the width of steel fiber concrete layer 301, along beam transverse direction, the self-compaction coagulation
Soil layer 302 is divided to control two sections, to install precast track plate 5 respectively.By pouring steel fibre coagulation successively on roof box 101
On the one hand soil layer 301 and self-compacting concrete layer 302 are effectively reduced the noise of the steel reinforced concrete combination beam, on the other hand so that pre-
Track plates 5 processed can be preferably mounted in beam body.Further, it such as Fig. 2-Fig. 6, is also set at 302 top of self-compacting concrete layer
There is beam 4, further decreases the noise of the steel reinforced concrete combination beam.Overhead steel reinforced concrete combination beam provided in this embodiment, use are prefabricated
Track plates 5, fully achieve standardized designs, factorial praluction and the prefabricated construction of overhead section superstructure, and raising is applied
Work efficiency rate.
Overhead steel reinforced concrete combination beam provided in this embodiment is preferably used for tramcar field, then, preferably in the middle part of beam (on
State between two sections of self-compacting concrete layers, 302/ two groups of pre-track) pour contact net upright post base 12 and in the contact net column
Installing contact net column on pedestal 12, pre-buried contact net column is pre-buried further preferably in contact net upright post base 12
Part.In addition, being also equipped with communication cable channel base 10 on roof box 101, which includes two groups
And be laterally distributed in the lateral edge of beam body two along beam, steel railing 11 can be also set on each communication cable channel base 10.
The work progress of above-mentioned overhead steel reinforced concrete combination beam approximately as：
The steel members such as separated steel case 1, various horizontal-associate plates in factory modularization are made first, wherein separated steel case 1
Preferably segmented making carries out module preassembling in steel construction factory；
Bridge location module spelling is carried out after transporting to building site, is passed through between separated steel case 1, horizontal-associate plate, cantilever 9 and outrigger 8
High-strength bolt 7 is connected as whole picture bridge；
The communication cable channel base 10 etc. for installing bridge floor, after installing on being reserved with the top layer steel plate of shear connector 1011
Steel fiber concrete layer 301 and self-compacting concrete layer 302 are poured, is then laid with cushion blocking on self-compacting concrete layer 302,
Then the precast track plate 5 transported to building site is mounted on cushion blocking, finally completes contact net upright post base 12, steel railing
11, the installation of channel plate and other track affiliated facilities.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of overhead steel reinforced concrete combination beam, it is characterised in that：Including at least two separated steel casees, each separated steel case
Including roof box, bottom plate and two blocks of webs, the roof box, the bottom plate connect to form babinet knot with two webs
Structure has poured concrete layer on each roof box；
Each separated steel case is laterally arranged in order along beam, is spelled by horizontal-associate mechanism between every adjacent two separated steel case
It connects, the horizontal-associate mechanism includes the multiple horizontal-associate groups being longitudinally arranged in order along beam, and each horizontal-associate group includes laterally logical along beam
Cross the polylith horizontal-associate plate that splice plate and bolt splice successively and each horizontal-associate plate respectively with the corresponding separated steel case
Roof box connects.
2. overhead steel reinforced concrete combination beam as described in claim 1, it is characterised in that：Described in two pieces of the head and the tail of each horizontal-associate group
Horizontal-associate plate is also connected with the web of the corresponding separated steel case respectively.
3. overhead steel reinforced concrete combination beam as claimed in claim 2, it is characterised in that：Each horizontal-associate group of the horizontal-associate mechanism
In, including be located at two groups of beam-ends horizontal-associate groups at beam both ends, and the height of each horizontal-associate plate of the beam-ends horizontal-associate group with
The height of the described web is identical.
4. overhead steel reinforced concrete combination beam as claimed in claim 2, it is characterised in that：Each horizontal-associate group of the horizontal-associate mechanism
In, include multigroup middle part horizontal-associate group between beam both ends, the height of each horizontal-associate plate of each middle part horizontal-associate group is equal
Less than the height of the web.
5. overhead steel reinforced concrete combination beam as claimed in claim 4, it is characterised in that：Each horizontal-associate group of the horizontal-associate mechanism
In, further include multigroup reinforcement horizontal-associate group between beam both ends, and the height of each each horizontal-associate plate for reinforcing horizontal-associate group
Degree is identical as the described height of web.
6. overhead steel reinforced concrete combination beam as claimed in claim 5, it is characterised in that：It is horizontal per adjacent two reinforcement along beam longitudinal direction
There is at least one set of middle part horizontal-associate group between connection group.
7. such as overhead steel reinforced concrete combination beam according to any one of claims 1 to 6, it is characterised in that：The lateral edge of two of beam
It is equipped with outrigger and cantilever, wherein the outrigger is connect with the web of the adjacent separated steel case and top plate, the cantilever
It is fixed on the top plate bottom of the adjacent separated steel case, laterally the cantilever is located on the outside of the outrigger and the two is logical along beam
Cross splice plate and bolt splicing.
8. such as overhead steel reinforced concrete combination beam according to any one of claims 1 to 6, it is characterised in that：Each horizontal-associate group packet
It includes three blocks of horizontal-associate plates and two stitching portions is respectively close to the corresponding two separated steel case.
9. overhead steel reinforced concrete combination beam as described in claim 1, it is characterised in that：The concrete layer includes that cast-in-place steel fibre is mixed
Solidifying soil layer, and the shear connector being connect with steel fiber reinforced concrete is equipped in the roof box.
10. overhead steel reinforced concrete combination beam as claimed in claim 9, it is characterised in that：The concrete layer further includes pouring in institute
State the self-compacting concrete layer above cast-in-place steel fiber concrete layer, and in being equipped with prefabricated rail on the self-compacting concrete layer
Guidance tape.
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| CN201810763285.2A CN108677679B (en) | 2018-07-12 | 2018-07-12 | Overhead steel-concrete composite beam |
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| CN109577169A (en) * | 2019-01-28 | 2019-04-05 | 福州大学 | A kind of assembly concrete box girder structure and construction method based on steel construction sway bracing |
| CN112301889A (en) * | 2019-07-31 | 2021-02-02 | 中冶(上海)钢结构科技有限公司 | Mounting positioning plate for multi-curvature box type bridge and construction method thereof |
| WO2021109535A1 (en) * | 2019-12-04 | 2021-06-10 | 中铁上海工程局集团有限公司 | Construction method for assembling steel box girder above tramcar |
| CN116335019A (en) * | 2023-04-27 | 2023-06-27 | 中铁大桥局集团第二工程有限公司 | Prefabricated steel reinforced concrete composite beam and construction method |
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| CN208701485U (en) * | 2018-07-12 | 2019-04-05 | 中铁四院集团西南勘察设计有限公司 | Overhead steel reinforced concrete combination beam |
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| KR200361049Y1 (en) * | 2003-09-04 | 2004-09-06 | (주)스틸엔콘크리트 | Prestressed composite beam bridge unit |
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| CN112301889A (en) * | 2019-07-31 | 2021-02-02 | 中冶(上海)钢结构科技有限公司 | Mounting positioning plate for multi-curvature box type bridge and construction method thereof |
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| CN116335019A (en) * | 2023-04-27 | 2023-06-27 | 中铁大桥局集团第二工程有限公司 | Prefabricated steel reinforced concrete composite beam and construction method |
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| CN108677679B (en) | 2024-10-01 |
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