CN206256363U - A kind of two-fold shape combined beam structure - Google Patents
A kind of two-fold shape combined beam structure Download PDFInfo
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- CN206256363U CN206256363U CN201621015326.2U CN201621015326U CN206256363U CN 206256363 U CN206256363 U CN 206256363U CN 201621015326 U CN201621015326 U CN 201621015326U CN 206256363 U CN206256363 U CN 206256363U
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Abstract
The utility model discloses a kind of two-fold shape combined beam structure, the two-fold shape combined beam structure includes I-shaped girder, steel diaphragm plate, combined bridge deck and bridge deck pavement, bridge deck pavement is layed on combined bridge deck, I-shaped girder includes that girder rolls over shape steel web, the girder top flange steel plate being welded in above girder folding shape steel web and the girder lower flange steel plate being welded in below girder folding shape steel web, combined bridge deck includes folding shape steel sole plate and pours in the ultra-high performance concrete layer on folding shape steel sole plate, steel diaphragm plate includes that diaphragm plate rolls over shape steel plate, the diaphragm plate top flange steel plate being welded in above diaphragm plate folding shape steel plate and the diaphragm plate lower flange steel plate being welded in below diaphragm plate folding shape steel plate, girder top flange steel plate and diaphragm plate top flange steel plate are welded with folding shape steel sole plate.The two-fold shape combined beam structure is without rack construction, stress performance is good, bearing capacity is high, structural reliability is high.
Description
Technical field
The utility model is related to bridge structure technical field, more particularly to a kind of two-fold shape combined beam structure.
Background technology
The middle-small span used on highway (including highway, Class I highway and low-grade highway) with town road
Beam (30m~50m) has extensive demand in China, and according to Department of Transportation's statistics, by the end of the end of the year 2014, the whole nation is public
Road and bridge beam quantity is about 75.71 ten thousand, and the wherein following bridge of 40m across footpaths accounts for more than the 90% of sum.Due to by economic condition
Restriction and the great demand to traffic, the Short/Medium Span Bridge overwhelming majority built in the past is all using assembly concrete beam
Bridge and prestressed concrete beam bridge, many advantages, such as it has relatively low direct cost, simple structure, construction technology ripe, in public affairs
It is widely used in road and municipal bridge.
But from concrete-bridge it is a large amount of build and service condition from the point of view of, the shortcomings and deficiencies for being shown also begin to cause
Extensive concern.China in recent years concrete amount more than 3,000,000,000 m3, the major part of world's concrete amount is accounted for, produced builds
Building refuse will pay huge environmentally friendly cost.The volume of concrete is big, weight is not easy to greatly long-distance transportation, substantially scene
Field, prefabricated, installation are built, place will also abolish, and recover soil and clear and remove refuse, and cause greatly waste.Bridge itself is overweight, right
The requirement on basis is higher, increases the cost of substructure.The concrete structure bridge that early stage builds frequently goes out with concrete component
Now different degrees of crack and downwarp, certain damage is caused to bridge, and influences durability and normal usage function, or even to bridge
The security reliability of beam produces serious threat.
Relative to concrete structure bridge, steel-concrete combined structure bridge gives full play to two kinds of materials of steel and concrete
Respective advantage, work progress is simple, and the duration is shorter, and with stress performance is good, system easy to control the quality, durability be more guaranteed, warp
The features such as Ji better performances, extensive use has been obtained abroad.As the important measurement mark of bridge developed country, Japan 130,000
In bridge block, steel construction and composite bridge account for 41%；In the bridge block of the U.S. 600,000, steel construction and composite bridge are about
Account for 35%；The steel of France is up to 85% with Composite Steel-Concrete Bridges accounting, and at present in highway in China bridge, steel construction,
The quantity and its steel consumption amount accounting of steel-mixed composite bridge are minimum.Statistics display, national steel construction and steel-mixed combination
Structural bridge respectively only 584 and 1293, the total accounting of quantity is only 0.25%, well below developed country's level, this with
China is serious unmatched currently as big steel country and to the target that bridge big country, power stride forward.
To implement " Green Development theory " that center proposes, national relevant ministries and commissions have formulated a series of policies to promote steel
Structure is used as green construction material popularization and application.With the raising and the progress of steel structure bridge construction technique of steel production capacity, I
State has possessed popularization steel construction, the material base of composite bridge and technical conditions at present.Currently, steel production capacity surplus, steel
Material prices, are to advance steel construction, composite bridge construction, the good opportunity of lifting highway bridge construction quality, while
It is also practicable《State Council realizes the opinion of development of getting rid of poverty on steel industry neutralizing superfluous production capacity》(promulgated by the State Council [2016] 6) will
Seek, promote the important measure of steel industry transition and upgrade and supply side reform.The bridge of steel construction, composite bridge in China
In the market has larger development space and promotional value.
At present, the composite bridge form commonly used in Mid and minor spans is steel plate combination beam bridge and composite beam of steel box bridge.
Compared with steel plate combination beam bridge, composite beam of steel box bridge is more applicable for across footpath inclined due to its stronger anti-twisting property and globality
Big bridge, but its steel using amount is higher, and steel structure plate piecemeal area is big, higher to hanging device requirement, and cost is higher.Steel plate
The main supporting member of composite beam bridge is steel girder, and bridge deck uses thicker concrete slab, at present at home and abroad middle-small span
Extensive application in beam.
But, there is following deficiency in design, construction and operation in this traditional steel plate combination beam bridge：First, it is traditional
Steel plate combination beam bridge, web uses plain plate, to ensure the stress and stability of web, generally requires to set more on web
Level and vertical ribbed stiffener, construct it is complex, to construction and processing and fabricating cause inconvenience.In order to ensure the part of web
Stability, often using thicker steel plate, the materials'use efficiency of steel is not fully utilized.2nd, traditional steel plate group
Beam bridge is closed, the construction of its concrete slab need to first set template, the then cast in situs in template.Such construction procedure makes
Obtain form work engineering amount and situ wet operation is big, speed of application is slow, template cannot be supported by girder steel completely, need to set full hall landing leg
Hand cradle, temporary construction is costly.Particularly in the construction of the big municipal bridge of the magnitude of traffic flow, rack construction will be to existing city
Traffic causes serious influence, does not meet the construction theory of domestic " the rapid construction of bridge prefabrication " actively advocated at present, applies
High cost between man-hour, social benefit is poor.3rd, traditional steel plate combination beam bridge, floorings use common concrete, tensile strength
It is low.Often there is the situation of bridge deck concrete cracking, influence the durability and performance of structure, while reducing compound section
Axial rigidity and bending rigidity.To control the tension of the decking in the negative moment region concrete, often poured using adjustment concrete
The method for build order, central bearing point jacking, applying longitudinal prestressing, effect is less desirable, and causes working procedure numerous and diverse.
In sum, to meet country to greatly develop the good opportunity of steel construction, composite bridge, especially in public affairs
During road, the Short/Medium Span Bridge of town road are built, it is badly in need of exploitation a kind of without rack construction, stress performance be good, quality has guarantor
Card, can be suitably used for the novel bridge structure of rapid construction.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to be mentioned and defect in background above technology, is carried
For one kind without rack construction, stress performance is good, bearing capacity is high, structural reliability is high, can be suitably used for the double of rapid construction
Folding shape combined bridge structure.
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of two-fold shape combined beam structure, including I-shaped girder, steel diaphragm plate, combined bridge deck and bridge deck pavement,
The I-shaped girder is connected with steel diaphragm plate, and the combined bridge deck is arranged at the top of I-shaped girder and steel diaphragm plate,
The bridge deck pavement is layed on combined bridge deck, the I-shaped girder include girder folding shape steel web, be welded in it is described
Girder rolls over the girder top flange steel plate above shape steel web and the girder bottom wing being welded in below the girder folding shape steel web
Balsh plate, the steel diaphragm plate is included on diaphragm plate folding shape steel plate, the diaphragm plate being welded in above the diaphragm plate folding shape steel plate
Edge of a wing steel plate and the diaphragm plate lower flange steel plate being welded in below the diaphragm plate folding shape steel plate, girder top flange steel plate
It is affixed with the combined bridge deck with diaphragm plate top flange steel plate.Two-fold shape combination beam of the present utility model is using folding shape steel
Plate, remaining place need not set vertical and transverse stiffener in addition at connection steel diaphragm plate, compared to traditional web using flat
The composite beam bridge of steel plate, reduces welding for steel structure damage, and construct more simple；Steel diaphragm plate as floorings supporter
System, compared to common straight steel plate, the local stability of steel plate can be strengthened using the diaphragm plate of folding shape steel plate, reduced even
Ribbed stiffener is not provided with, welding damage is reduced, and increase Bridge Landscape effect.The steel member of the two-fold shape combination beam is all in factory
Prefabricated completion, can at the scene realize quick-assembling；And folding shape steel sole plate is used as the cast-in-place stress mould for pouring ultra-high performance concrete
Plate, without erection construction support, simplifies construction procedure, significantly shorten construction period, accelerates construction speed.The bridge knot
Structure has given full play to the service efficiency of steel and ultra-high performance concrete material, highlights the beneficial effect of combination of materials, has
Stress performance is good, bearing capacity is strong, excellent in durability, structural reliability high the advantages of.
As the further improvement to above-mentioned technical proposal：
Preferably, vertical floor of putting more energy into is provided with the I-shaped girder, the end of the steel diaphragm plate is provided with tabula
Plate connecting plate, the steel diaphragm plate is affixed with vertical floor of putting more energy into by diaphragm plate connecting plate and fastener.Connected using fastener
Connect (namely what is often called bolt), it is simple and efficient to handle, bridge construction progress, and quality of connection reliability can be accelerated.Herein according to
Welding, then need to be welded in the overhead position, and construction quality is difficult to ensure.
Preferably, the vertical floor of putting more energy into is contour with girder folding shape steel web, and vertical floor top of putting more energy into is opened
Be provided with some bolts hole, the diaphragm plate connecting plate at the steel diaphragm plate two ends by bolt be fixed in two it is vertical put more energy into floor it
Between.This floor of putting more energy into can not only be used for the vertical ribbed stiffener of I-shaped girder, is connected with I-shaped girder but also as diaphragm plate
Connecting plate, it is ensured that each I-shaped girder participates in stress jointly.
Preferably, two adjacent I-shaped girders constitute " door " font cellular construction with the steel diaphragm plate in the middle of it, and
The two-fold shape combined beam structure is to be abutted to be formed by connecting side by side by foregoing " door " the font cellular construction of multiple.Using multiple
" door " font cellular construction cocurrent is against the two-fold shape combined beam structure of composition, and it is such that the combined beam structure is applicable to different in width
The construction of type bridge.
Preferably, the combined bridge deck includes：
Folding shape steel sole plate；
And with above-mentioned folding shape steel sole plate as template and pour formed thereon ultra-high performance concrete layer.
In composite bridge, with the popularization and application and the gradually increase of girder spacing of few girder bridge, traditional steel
Reinforced concrete floorings are more difficult to meet long-span bridge panel design requirement.And pour ultra-high performance concrete on folding shape steel sole plate
The very-high performance combined bridge deck of formation, with larger bending rigidity and bearing capacity, can effectively realize long-span bridge panel
Design application.Combined bridge deck has many performance advantages of reinforced concrete bridge deck plate and steel bridge deck concurrently, and folding shape steel plate is in bridge
Template action can be played in panel construction, is exempted template dismounting and support is set up work, easily realize rapid construction and safety
Construction, construction quality is more preferably ensured.Additionally, folding shape steel sole plate is also used as the stress base plate of combined bridge deck, jointly
Stress, bearing capacity is high, possesses excellent stress performance, and composite bridge can be further mitigated with ultra-high performance concrete common combination
The thickness of slab of panel, so as to mitigate deadweight.Therefore, ultra-high performance concrete is poured with above-mentioned folding shape steel sole plate as template and thereon
The combined bridge deck that layer is formed, has the advantages that construct convenient, high-strength light, economic and practical, safety durable.
It is furthermore preferred that the thickness of the ultra-high performance concrete layer is 10-20cm, it is pre- embedded in ultra-high performance concrete layer
Vertically and horizontally bar-mat reinforcement is equipped with, the one-way reinforcement rate of the vertically and horizontally bar-mat reinforcement is 4%-7%；Vertically and horizontally bar-mat reinforcement can strengthen group
The bearing capacity of floorings is closed, the development of bridge deck concrete fracture width is limited, the endurance quality of floorings is lifted.
The ultra-high performance concrete layer is using modified RPC, the modified RPC
For wherein doped with different size and/or the RPC of the high-strength steel fibre of profile.Ultra-high performance concrete, is one
Kind with superhigh intensity, superhigh tenacity and high-durability cement-base composite material, be over the past thirty years in it is most innovative
Cement base engineering material, realizes the Great span of engineering material performance.RPC is used as ultra-high performance concrete one
Main material is planted, matching somebody with somebody quartzy fine sand, cement, silica flour, silicon ash, high efficiency water reducing agent and steel fibre by level is formulated, maximum collection
Material particle diameter is 600 μm.By improving the fineness and activity of component, the defect (hole and microcrack) of material internal is set to reduce to most
Few, to obtain the maximum intensity and excellent durability that are determined by its component material, it is micro- that steel fibre hinders inside concrete
The extension in crack, can make concrete show good plastic behavior.Compared to normal concrete, ultra-high performance concrete has
Superelevation tension, compression strength, superhigh tenacity, high-durability, lower shrinkage are crept and excellent workability.
It is furthermore preferred that being welded with least two girder perforated panel connections be arrangeding in parallel on the steel plate of the girder top flange
Part, the girder perforated plate connector is longitudinally arranged along bridge, and the girder perforated plate connector is arranged on folding shape steel sole plate
Groove；On the girder perforated plate connector vertically and horizontally bar-mat reinforcement is uniformly offered in clamping combined bridge deck along longitudinal direction
Location hole.Perforated panel on i shaped steel girder be as the connector between ultra-high performance concrete and i shaped steel girder,
Reinforcing bar is set in perforated panel so that its load-carrying properties is further enhanced with ductility.
Preferably, multiple steel sole plate perforated plate connectors be arrangeding in parallel are welded with the groove of the folding shape steel sole plate,
The steel sole plate perforated plate connector is longitudinally arranged along bridge；Uniformly offered along longitudinal direction on the steel sole plate perforated plate connector
The location hole of the interior vertically and horizontally bar-mat reinforcement of clamping combined bridge deck.Perforated plate connector as folding shape steel sole plate ribbed stiffener, especially
When being that poured in place concrete does not form combined bridge deck thereon, it is possible to increase the bending rigidity of folding shape steel sole plate, reduce local
Deformation.Meanwhile, perforated panel is used as the connecting elements between folding shape steel sole plate and ultra-high performance concrete, it is ensured that combined bridge deck is common
Same stress.
Preferably, it is described folding shape steel sole plate compartment the girder top flange steel plate for being arranged in adjacent two I-shaped girder it
Between, and the two ends of shape steel sole plate and the girder top flange steel plate welding of both sides are rolled over, it is welded with the projection of the folding shape steel sole plate
Multiple steel sole plate weldering nail connectors.
Compared with prior art, the utility model has the advantage of：
(1) two-fold shape combination beam of the present utility model has given full play to steel and has used effect with ultra-high performance concrete material
Rate, protrusion embodies the beneficial effect of combination of materials, good with stress performance, and bearing capacity is strong, excellent in durability, structure reliability
The features such as degree is high, driving smooth-going is comfortable, Bridges are light and handy attractive in appearance.
(2) two-fold shape combination beam of the present utility model is using folding shape steel plate, remaining local nothing in addition at connection steel diaphragm plate
Vertical and transverse stiffener need to be set, compared to traditional web using the composite beam bridge of plain plate, welding for steel structure is reduced
Damage, reduce the risk of steel structure's fatigue failure, and construct more simple.
(3) steel member of two-fold shape combination beam of the present utility model is all prefabricated in the factory completion, realizes bridge member
Standardization, batch production, assembling, scale, can at the scene realize extensive quick-assembling；And folding shape steel sole plate is poured as cast-in-place
The stressed template of ultra-high performance concrete is built, without erection construction support, simplifies construction procedure, significantly shorten construction period.
(4) construction of two-fold shape combination beam of the present utility model has the advantages that " quick, lightweight, high-strength, economy ", can protect
Road is smooth under bridge during card bridge construction, and small to existing traffic impact, comprehensive social benefit is high, is particularly well-suited to 20~50m's
City and the scale application of highway Short/Medium Span Bridge.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the schematic perspective view of the two-fold shape combined beam structure of the utility model.
Fig. 2 is the standard cross-section figure of the two-fold shape combined beam structure of the utility model.
Fig. 3 is the girder schematic perspective view of the two-fold shape combined beam structure of the utility model.
Fig. 4 is the crossbeam schematic perspective view of the two-fold shape combined beam structure of the utility model.
Fig. 5 is the partial enlarged drawing of the two-fold shape combined beam structure of the utility model.
Fig. 6 is the structural representation of the folding shape steel sole plate of inverted trapezoidal cross section in the two-fold shape combined beam structure of the utility model
Figure.
Fig. 7 is the structural representation of the folding shape steel sole plate of rectangular cross section in the two-fold shape combined beam structure of the utility model.
Fig. 8 is the structural representation of the folding shape steel sole plate of wave-shaped cross-section in the two-fold shape combined beam structure of the utility model.
Marginal data：
1st, I-shaped girder；2nd, steel diaphragm plate；3rd, combined bridge deck；4th, bridge deck pavement；101st, girder folding shape steel web；
102nd, girder top flange steel plate；103rd, girder lower flange steel plate；104th, vertically put more energy into floor；105th, girder perforated plate connector；
201st, diaphragm plate folding shape steel plate；202nd, diaphragm plate top flange steel plate；203rd, diaphragm plate lower flange steel plate；204th, diaphragm plate connection
Plate；301st, shape steel sole plate is rolled over；302nd, ultra-high performance concrete layer；303rd, steel sole plate perforated plate connector；304th, steel sole plate weldering nail
Connector；305th, vertically and horizontally bar-mat reinforcement.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, is meticulously described, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be that directly fixed, affixed, connection or connection connect on another element, or by the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit this practicality
New protection domain.
Embodiment
A kind of embodiment of the two-fold shape combined beam structure of the utility model, the two-fold shape combined beam structure is primarily adapted for use in
The rapid transformation of scale application and city in the city and highway Short/Medium Span Bridge of 20-50m.The two-fold shape combined beam structure
Schematic diagram as Figure 1-Figure 5, from Fig. 1-Fig. 5, its mainly include I-shaped girder 1, steel diaphragm plate 2, combined bridge deck
Plate 3 and bridge deck pavement 4.Wherein, I-shaped girder 1 is connected with steel diaphragm plate 2, and combined bridge deck 3 is arranged at I-shaped girder 1
With the top of steel diaphragm plate 2, bridge deck pavement 4 is layed on combined bridge deck 3.The I-shaped girder 1 includes that girder rolls over shape steel
Web 101, the girder top flange steel plate 102 for being welded in the top of girder folding shape steel web 101 and it is welded in girder folding shape steel
The girder lower flange steel plate 103 of the lower section of web 101.The width and thickness of girder lower flange steel plate 103 are all higher than girder top flange
Steel plate 102.Combined bridge deck 3 as template and is poured in folding shape steel including folding shape steel sole plate 301 and with the folding shape steel sole plate 301
Ultra-high performance concrete layer 302 on base plate 301.Folding shape steel sole plate 301 is gone back in addition to using the shape shown in Fig. 1 and Fig. 2
It is rectangular configuration or as shown in Figure 8 for inverted trapezoidal structure, cross section as shown in Figure 7 that cross section as shown in Figure 6 can be used
Cross section for ripple struction steel sole plate.Steel diaphragm plate 2 includes diaphragm plate folding shape steel plate 201, is welded in diaphragm plate folding shape
The diaphragm plate top flange steel plate 202 of the top of steel plate 201 and the diaphragm plate lower flange being welded in below diaphragm plate folding shape steel plate 201
Steel plate 203.Girder top flange steel plate 102 and diaphragm plate top flange steel plate 202 are welded with folding shape steel sole plate 301.The combination beam
Structure uses flat steel using girder folding shape steel web 101 and the two-fold shape structure of folding shape steel sole plate 301 compared to traditional web
The composite beam bridge of plate, combined beam structure of the present utility model need not weld more putting more energy on girder folding shape steel web 101
Rib, constructs more simple；Additionally, combined beam structure of the present utility model need not first set template and then in template in construction
Upper poured in place concrete, simplifies construction procedure, improves efficiency of construction；Furthermore, combination beam of the present utility model is using double
The structure of shape steel plate combination ultra-high performance concrete is rolled over, has more preferable axial rigidity and bending resistance firm compared to conventional combination beam
Degree, its performance and durability are significantly improved.
In the present embodiment, vertical floor 104 of putting more energy into is provided with I-shaped girder 1, vertically put more energy into floor 104 and the master
Beam folding shape steel web 101 is contour, and some bolts hole are offered on floor 104 of vertically putting more energy into, and the end of steel diaphragm plate 2 is provided with tabula
Plate connecting plate 204, steel diaphragm plate 2 passes through bolt by diaphragm plate connecting plate 204 and fastener and two pieces of vertical floors 104 of putting more energy into
Connection.It is not only simple and efficient to handle using fastener bolt, bridge construction progress, and quality of connection reliability can be accelerated.It is adjacent
Two I-shaped girders 1 constitute " door " font cellular construction with the steel diaphragm plate 2 in the middle of it, and two-fold shape combined beam structure is
By multiple foregoing " door " font cellular constructions side by side against being formed by connecting, should cause that combined beam structure was applicable to different in width
The construction of this type bridge.
Ultra-high performance concrete layer 302 thickness be 10-20cm, ultra-high performance concrete layer 302 in it is pre-buried be provided with it is vertical
Transverse steel net 305, vertically and horizontally the one-way reinforcement rate of bar-mat reinforcement 305 is 4%-7%.Connected by main beam connections, steel sole plate
Part combines vertically and horizontally bar-mat reinforcement 305, greatly increases the mechanical property of combined bridge deck 3.Ultra-high performance concrete layer 302 is excellent
Using modified RPC, the modified RPC is more preferably used wherein doped with different size for choosing
And/or the RPC of the high-strength steel fibre of profile.Bridge deck pavement 4 is asphalt concrete pavement layer, deck paving
The pavement thickness of layer 4 is preferably 4-6cm.The prefabricated completion in factory of the steel member of the two-fold shape combination beam, and very-high performance
Concrete layer 302 then treat the steel construction of two-fold shape combination beam all completion built in connection at the construction field (site) after cast in situs in folding
The top of shape steel sole plate 301.
At least two girder perforated plate connectors 105 be arrangeding in parallel are welded with girder top flange steel plate 102, girder is opened
Orifice plate connector 105 is longitudinally arranged along bridge, and girder perforated plate connector 105 is arranged on the groove of folding shape steel sole plate 301.
The positioning of the interior vertically and horizontally bar-mat reinforcement 305 of clamping combined bridge deck 3 is uniformly offered on girder perforated plate connector 105 along longitudinal direction
Hole.Multiple steel sole plate perforated plate connectors 303 be arrangeding in parallel, steel sole plate perforate are welded with the groove of folding shape steel sole plate 301
Plate connector 303 is longitudinally arranged along bridge；On steel sole plate perforated plate connector 303 clamping combined bridge deck is uniformly offered along longitudinal direction
The location hole of the interior vertically and horizontally bar-mat reinforcement 305 of plate 3.The master for being arranged in adjacent two I-shaped girder 1 of the compartment of folding shape steel sole plate 301
Between beam top flange steel plate 102, and the two ends of folding shape steel sole plate 301 are affixed with the girder top flange steel plate 102 of both sides, roll over shape steel
Multiple steel sole plate weldering nail connectors 304 are welded with the projection of base plate 301.In addition to girder perforated plate connector 105, on girder
Weldering nail connector also can be set on edge of a wing steel plate 102, and removed on folding shape steel sole plate 301 and steel sole plate perforated plate connector is set
303 and steel sole plate weldering nail connector 304 is outer that steel sole plate bendbor connectors also can be set.
The above-mentioned two-fold shape combination beam of the present embodiment has given full play to steel and has used effect with ultra-high performance concrete material
Rate, protrusion embodies the beneficial effect of combination of materials, good with stress performance, and bearing capacity is strong, excellent in durability, structure reliability
The features such as degree is high, driving smooth-going is comfortable, Bridges are light and handy attractive in appearance.
The construction method of the two-fold shape combined beam structure is comprised the following steps：
The first step, the I-shaped girder 1 being prefabricated in the factory is transported to bridge location, on-site hoisting lays each I-shaped master
Beam 1 is in place；
The prefabricated steel diaphragm plate 2 of second step, on-site hoisting, steel diaphragm plate 2 is connected with I-shaped girder 1 by bolt
Connect；
3rd step, on-site hoisting folding shape steel sole plate 301 are in place, and will folding shape steel sole plate 301 and girder top flange steel plate 102
And diaphragm plate top flange steel plate 202 is welded, then the sections for rolling over shape steel sole plate 301 is longitudinally welded；
4th step, on folding shape steel sole plate 301 vertically and horizontally bar-mat reinforcement 305 is arranged, then the scene on folding shape steel sole plate 301
Pour ultra-high performance concrete layer 302, form combined bridge deck 3, then bridge deck pavement 4 of mating formation on combined bridge deck 3, i.e., it is complete
Into the construction of two-fold shape combined beam structure.
The steel construction of the composite beam bridge is prefabricated in the factory completion, and assembled, welding or bolt need to be only carried out at the construction field (site)
Connection, it is ensured that construction quality, simplifies construction procedure, shortens construction period, improves construction speed, and can guarantee that bridge
Road is smooth under bridge when beam is constructed, small to existing traffic impact, is particularly well-suited to city and the highway middle-small span of 20~50m
The rapid transformation of the scale application of beam and city.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (9)
1. a kind of two-fold shape combined beam structure, including I-shaped girder (1), steel diaphragm plate (2), combined bridge deck (3) and bridge floor
Pave-load layer (4), the I-shaped girder (1) is connected with steel diaphragm plate (2), and the combined bridge deck (3) is arranged at I-shaped master
The top of beam (1) and steel diaphragm plate (2), the bridge deck pavement (4) is layed on combined bridge deck (3), it is characterised in that：Institute
State I-shaped girder (1) and roll over shape steel web (101), the master being welded in above girder folding shape steel web (101) including girder
Beam top flange steel plate (102) and girder lower flange steel plate (103) being welded in below girder folding shape steel web (101),
The steel diaphragm plate (2) rolls over shape steel plate (201), the horizontal stroke being welded in above diaphragm plate folding shape steel plate (201) including diaphragm plate
Dividing plate top flange steel plate (202) and the diaphragm plate lower flange steel plate being welded in below diaphragm plate folding shape steel plate (201)
(203), girder top flange steel plate (102) and diaphragm plate top flange steel plate (202) are solid with the combined bridge deck (3)
Connect.
2. two-fold shape combined beam structure according to claim 1, it is characterised in that：Set on the I-shaped girder (1)
There is vertical floor (104) of putting more energy into, the end of the steel diaphragm plate (2) is provided with diaphragm plate connecting plate (204), the steel diaphragm plate
(2) it is affixed with vertical floor (104) of putting more energy into by diaphragm plate connecting plate (204) and fastener.
3. two-fold shape combined beam structure according to claim 2, it is characterised in that：It is described it is vertical put more energy into floor (104) with
Girder folding shape steel web (101) is contour, and floor (104) top of vertically putting more energy into offers some bolts hole, and the steel is horizontal
The diaphragm plate connecting plate (204) at dividing plate (2) two ends is fixed between two vertical floors (104) of putting more energy into by bolt.
4. two-fold shape combined beam structure according to claim 1, it is characterised in that：Two adjacent I-shaped girders (1)
" door " font cellular construction is constituted with the steel diaphragm plate (2) in the middle of it, and the two-fold shape combined beam structure is foregoing by multiple
" door " font cellular construction side by side against being formed by connecting.
5. the two-fold shape combined beam structure according to any one of claim 1-4, it is characterised in that：The combined bridge deck
(3) include：
Folding shape steel sole plate (301)；
And with above-mentioned folding shape steel sole plate (301) as template and pour formed thereon ultra-high performance concrete layer (302).
6. two-fold shape combined beam structure according to claim 5, it is characterised in that：The ultra-high performance concrete layer
(302) thickness is 10-20cm, pre-buried in ultra-high performance concrete layer (302) to be provided with vertically and horizontally bar-mat reinforcement (305), described
Vertically and horizontally the one-way reinforcement rate of bar-mat reinforcement (305) is 4%-7%.
7. two-fold shape combined beam structure according to claim 6, it is characterised in that：Girder top flange steel plate (102)
On be welded with least two girder perforated plate connectors (105) be arrangeding in parallel, the girder perforated plate connector (105) is along bridge
Beam is longitudinally arranged, and the girder perforated plate connector (105) is arranged on the groove of folding shape steel sole plate (301)；The girder
The positioning of the interior vertically and horizontally bar-mat reinforcement (305) of clamping combined bridge deck (3) is uniformly offered on perforated plate connector (105) along longitudinal direction
Hole.
8. two-fold shape combined beam structure according to claim 6, it is characterised in that：It is described to roll over the recessed of shape steel sole plate (301)
Multiple steel sole plate perforated plate connectors (303) be arrangeding in parallel, steel sole plate perforated plate connector (303) edge are welded with groove
Bridge is longitudinally arranged；Uniformly offered in clamping combined bridge deck (3) along longitudinal direction on the steel sole plate perforated plate connector (303)
The vertically and horizontally location hole of bar-mat reinforcement (305).
9. two-fold shape combined beam structure according to claim 6, it is characterised in that：Folding shape steel sole plate (301) interval
Formula is arranged between girder top flange steel plate (102) of adjacent two I-shaped girder (1), and folding shape steel sole plate (301) two
End is affixed with girder top flange steel plate (102) of both sides, and multiple steel sole plates are welded with the projection of folding shape steel sole plate (301)
Weldering nail connector (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621015326.2U CN206256363U (en) | 2016-08-31 | 2016-08-31 | A kind of two-fold shape combined beam structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621015326.2U CN206256363U (en) | 2016-08-31 | 2016-08-31 | A kind of two-fold shape combined beam structure |
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| CN206256363U true CN206256363U (en) | 2017-06-16 |
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| CN201621015326.2U Withdrawn - After Issue CN206256363U (en) | 2016-08-31 | 2016-08-31 | A kind of two-fold shape combined beam structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245511A (en) * | 2016-08-31 | 2016-12-21 | 湖南省交通规划勘察设计院 | A kind of two-fold shape combined beam structure and construction method thereof |
| CN109137712A (en) * | 2018-11-07 | 2019-01-04 | 深圳市市政设计研究院有限公司 | A kind of Dual-layer cell compartment combination folding abdomen box beam |
| CN109972511A (en) * | 2019-03-27 | 2019-07-05 | 湖南大学 | A kind of fashioned iron-UHPC compoboard and floorings |
| CN112049006A (en) * | 2020-09-11 | 2020-12-08 | 中交第二公路勘察设计研究院有限公司 | Orthotropic steel bridge deck structure and construction method |
-
2016
- 2016-08-31 CN CN201621015326.2U patent/CN206256363U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245511A (en) * | 2016-08-31 | 2016-12-21 | 湖南省交通规划勘察设计院 | A kind of two-fold shape combined beam structure and construction method thereof |
| CN109137712A (en) * | 2018-11-07 | 2019-01-04 | 深圳市市政设计研究院有限公司 | A kind of Dual-layer cell compartment combination folding abdomen box beam |
| CN109137712B (en) * | 2018-11-07 | 2023-11-24 | 深圳市市政设计研究院有限公司 | Upper and lower double-layer cell combined abdomen folding box girder |
| CN109972511A (en) * | 2019-03-27 | 2019-07-05 | 湖南大学 | A kind of fashioned iron-UHPC compoboard and floorings |
| CN112049006A (en) * | 2020-09-11 | 2020-12-08 | 中交第二公路勘察设计研究院有限公司 | Orthotropic steel bridge deck structure and construction method |
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