CN106337361B - A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method - Google Patents
A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method Download PDFInfo
- Publication number
- CN106337361B CN106337361B CN201610785473.6A CN201610785473A CN106337361B CN 106337361 B CN106337361 B CN 106337361B CN 201610785473 A CN201610785473 A CN 201610785473A CN 106337361 B CN106337361 B CN 106337361B
- Authority
- CN
- China
- Prior art keywords
- frp
- bridge
- steel
- modular units
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D1/00—Bridges in general
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/40—Plastics
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of separate type FRP concrete steel composite beam bridge structures and construction methods, the structure includes girder steel, the FRP plate with T ribs and reinforced concrete bridge deck plate, and FRP plate is as the bottom plate of the concrete of remaining position in addition to girder steel top surface and template when pouring.This method first makes standard FRP templates according to floorings direction across bridge line style and bridge longitudinal length, is cut, and it is assembled into multigroup separate type FRP modules by direction across bridge section line style, then it is lifted into the assembly that full-bridge FRP templates are completed on girder steel, last casting concrete floorings paragraph by paragraph.The present invention is suitable for the bridge floor form of the arbitrary line style of direction across bridge, and avoid FRP, three kinds of materials of concrete and steel same position complexity connection processing, the difficulty of construction of FRP concrete steel composite beam bridges is reduced, is remarkably improved the bearing capacity and durability of such bridge concrete floorings.
Description
Technical field
Patent of the present invention is related to technical field of civil engineering more particularly to a kind of separate type FRP- concrete-steel combination beam
Bridge structure type and its construction method.
Background technology
Reinforced concrete bridge deck plate largely applies in bridge structure, with the increasingly increase of vehicle flowrate, steel bar corrosion,
The problems such as fatigue, concrete cracking, is more and more significant.FRP- concrete slabs are a kind of novel floorings forms, bottom plate
For FRP structures, upper strata is concrete.Since FRP material has the characteristics that high-strength light, corrosion resistant, the resistance to of floorings can be improved
Long property, while template when FRP bottom plates can also be as upper strata concreting, it is lateral stressed to participate in bottom plate in Cheng Qiaohou.Mirror
In above-mentioned advantage, this novel floorings cause the research of numerous scholars, and start applied in practical science of bridge building.
But since FRP section bars are generally pultrusion, in order to keep the continuity of FRP structures, using standard module system
The FRP templates of work are generally linear type.Therefore, existing FRP- concrete slabs along direction across bridge all using etc. height it is uniform
Section.And in fact, concrete slab transversely often for non-rectilinear line style, the more lateral span centre of floorings height on girder steel top
At section and the height of cantilever end is big, i.e., there are the gradients and turnover for direction across bridge line style.For such floorings, directly using pultrusion
Molding FRP templates will be extremely difficult.On the other hand, the interface mechanical characteristic between different materials is complex, concrete with
Interface connection between FRP material is always the difficult point of concrete-FRP composite structures.FRP- concrete-steel combination beam bridge then relates to
And the connectivity problem of three kinds of materials, structure type, the research of construction technology and application are not yet ripe.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provide a kind of separate type FRP- concrete-
Steel combination beam bridge structure and construction method, by reasonably cutting, assembled program carry out modular construction, it is lateral to improve floorings
The flexibility of line style and arrangement form, while interface while three kinds of FRP, concrete, steel materials is avoided to connect, it reduces FRP- and mixes
The difficulty of construction of solidifying soil-steel combination beam bridge.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of separate type FRP- concrete-steel combination beam bridge structure, including left side cantilever slab FRP modular units (4), box beam
Push up FRP modular units (5), right side cantilever slab FRP modular units (6), reinforced concrete bridge deck plate (9) and girder steel (10), institute
Left side cantilever slab FRP modular units (4), box beam top FRP modular units (5), right side cantilever slab FRP modular units (6) are stated from a left side
It is set in turn on girder steel (10) to the right side, the left side cantilever slab FRP modular units (4), box beam top FRP modular units (5), the right side
Side cantilever slab FRP modular units (6) are formed by the FRP template assemblies with T ribs, and the box beam top FRP modular units (5) by
Three sections of linear type FRP templates are assembled according to the gradient and line style in direction across bridge.And reinforced concrete bridge deck plate (9) setting
In left side cantilever slab FRP modular units (4), box beam top FRP modular units (5), right side cantilever slab FRP modular units (6) and
On the surface that girder steel (10) is formed, and the reinforced concrete bridge deck plate (9) bottom transverse steel is supported on the T of FRP templates
On rib, bottom longitudinal reinforcement and prestressed strand are passed through from FRP templates.
Further：The girder steel (10) is vertically arranged with more than two girder steel diaphragms (11), the FRP templates
It is set to the outside side of the girder steel diaphragm (11) between two girder steel diaphragms (11) and on side and then forms case
Back FRP modular units (5).
Further：The FRP templates are equipped with preformed hole respectively in longitudinal reinforcement and prestressed strand by position, described
Reinforced concrete bridge deck plate (9) bottom longitudinal reinforcement and prestressed strand pass through respectively from its corresponding preformed hole.
Preferably：The FRP template surfaces are by polishing and scab interface processing.
Preferably：The FRP templates include bottom plate (3), two inverted L-shaped webs (1) and T ribs (2), two inverted L-shaped abdomens
Plate (1) is symmetrically arranged in the both sides of bottom plate (3), and the cross rib (12) of inverted L-shaped web (1) is oppositely arranged.The T ribs (2)
It is set on bottom plate (3), and between two inverted L-shaped webs (1).
Preferably：The girder steel (10) is groove profile steel box-girder, mainly by left roof, right top plate, left web, right web, bottom
Plate one and ribbed stiffener composition, wherein, left web, right web are separately positioned on the left and right sides of bottom plate one, and the left roof, the right side
Top plate sets its corresponding left web, on right web respectively, and the left roof, right top plate and bottom plate one are arranged in parallel.It is described
Ribbed stiffener is set on left web, right web and bottom plate one.The left side cantilever slab FRP modular units (4) are set to left top
The left side of plate, the right side cantilever slab FRP modular units (6) are set to the right of right top plate, and the box beam top FRP template lists
First (5) one end and the right of left roof connect, and the other end is connect with the left side of right top plate.
A kind of construction method of separate type FRP- concrete-steel combination beam bridge structure, includes the following steps：
Step 1, by the FRP templates with T ribs according to bridge direction across bridge and vertical bridge to line style and length made and cut
It cuts, is punched in longitudinal reinforcement and prestressed strand by position.
Step 2, each section of GFRP groove profiles template carries out polishing and scab interface processing.
Step 3, FRP mold platform for lining is set up, each section of FRP template is assembled according to floorings cross dip and position,
And pass through the integral mold plate that steel plate of shaping connects into one group or more.
Step 4, integral mold plate assembled in step 3 is indulged bridge to viscous by the gluing on the outside of the inverted L-shaped web (1) along bridge
Knot is spliced into the module detached one by one, and applies pressure on the outside of inverted L-shaped web (1) with secure bond.
Step 5, prefabricated girder steel (10) is lifted on Temporary Piers or bridge pier, and be welded into defined position paragraph by paragraph
It is whole.
Step 6, in girder steel (10) top flange both sides, along bridge, longitudinally elongated setting fixes left side cantilever slab FRP for positioning
Angle steel three is fixed in the positioning of modular unit (4), box beam top FRP modular units (5) and right side cantilever slab FRP modular units (6)
(83), the temporary support steel pipe three (73) for being used to support box beam top FRP modular units (5) is then installed inside girder steel (10).
In the left and right sides of girder steel (10), temporary support steel pipe one (71), temporary support steel pipe two (72) are set respectively.The interim branch
It is provided on support steel pipe one (71) and fixes angle steel one (81) for positioning the positioning of fixed left side cantilever slab FRP modular units (4),
It is provided on temporary support steel pipe two (72) and fixes angle steel for positioning the positioning of fixed right side cantilever slab FRP modular units (6)
Two (82).Box beam top FRP modular units (5) are along setting supporting point at 2 three branches of direction across bridge simultaneously, and left side cantilever slab FRP
Direction across bridge sets 2 temporary support points respectively for modular unit (4), right side cantilever slab FRP modular units (6).
Step 7, good FRP modules grouping assembled in step 4 is lifted on girder steel (10), along direction across bridge it is in place after
Viscose glue carries out longitudinal spliced on the outside of the both ends inverted L-shaped web (1) of FRP modules.
Step 8, lashing bridge slab reinforcement net and pouring reinforcement concrete floorings (9) treat that concrete curing is strong to regulation
Spend post-stress beam.
When FRP templates are cut in the step 1, in direction across bridge, FRP templates change according to the cross fall of floorings bottom plate
It is cut, each section is straightway.
It is polished in the step 2 GFRP groove profile templates and the method for scab interface processing：To the bottom plate of FRP templates
(3) it polishes on the outside of inside and inverted L-shaped web (1), carries out gluing after the inside polishing of bottom plate (3) and spreading sand and broken
Stone.
In the step 3, using steel, wooden component processing FRP mold platform for lining, the top flange of girder steel (10) is not laid with
FRP templates, the FRP templates at other positions of girder steel form left side cantilever slab FRP modular units (4), case by line style assembly respectively
Back FRP modular units (5), right side cantilever slab FRP modular units (6).
In the step 8, bottom longitudinal reinforcement and prestressed strand are passed through from FRP preformed holes, the support of bottom transverse steel
On the T ribs of FRP templates.In steel beam position, concrete directly pours the edge of a wing on it, in girder steel both sides, concreting in
In FRP templates.
Advantageous effect：The present invention compared with prior art, has the advantages that：
(1) FRP formwork structures proposed by the present invention are simple, easy to process, and the T ribs of bottom plate can improve the whole firm of template
Degree reduces deformation during concreting, and can also serve as the support construction of transverse steel, laying, positioning convenient for transverse steel
And binding, while the ability that is engaged between FRP bottom plates and concrete can also be enhanced, reduce the risk removed between the two.
(2) compared with traditional steel-concrete composite beam bridge, the bed die material of concrete slab and making are completely by group
The FRP groove type plates of spelling substitute, and as the permanent protection of concrete slab, while can provide drag and substitution part cross-bridges
To tension reinforcement, the durability and anti-bending bearing capacity of concrete slab is greatly improved.
(3) present invention can to standard pultrusion, molding linear type FRP templates be cut according to deck structrue form, are pressed
Assembly is carried out according to lateral floorings line style and the gradient, suitable for the floorings of arbitrary line style, improves FRP- concrete slabs
Application.
(4) since FRP templates are after being horizontally divided into several sections, the across footpath and weight of single FRP templates are reduced, it can root
According to crane capacity and Deformation control requirement, by multiple FRP templates, advance gluing is assembled into one group of group along longitudinal direction on smooth location
Module, then by group modularization lifting, not only can guarantee construction quality but also lifting number can be reduced, be greatly improved construction speed
Degree.
(5) structure type that the present invention is detached with girder steel using FRP templates, can avoid girder steel ceiling location steel, FRP and
The challenge that three kinds of materials of concrete connect simultaneously, by cutting assembled combination, FRP templates are provided only on girder steel two
Side, and the concrete of girder steel ceiling location is directly poured in girder steel top flange, FRP templates are without entirely through girder steel, avoiding
The base plate drilling of FRP templates, a series of problems, such as wearing peg, being connect with girder steel, difficulty of construction is greatly reduced, simplifies construction
Technique.
In conclusion the present invention is suitable for the bridge floor form of the arbitrary line style of direction across bridge, and avoid FRP, concrete and steel
Three kinds of materials reduce the difficulty of construction of FRP- concrete-steel combination beam bridge in the connection processing of same position complexity, can be notable
Improve the bearing capacity and durability of such bridge concrete floorings.
Description of the drawings
Fig. 1 is the cross-sectional view of the FRP templates of the invention with T ribs.
Fig. 2 is FRP- concrete-steel combination beam bridge cross-sectional view.
Fig. 3 is the FRP template assembly plan views of the present embodiment Bridge end bay.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these examples are merely to illustrate this
It invents rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are various to the present invention's
The modification of equivalent form falls within the application range as defined in the appended claims.
A kind of separate type FRP- concrete-steel combination beam bridge structure, section form is as shown in Fig. 2, its span setting is 25m
+ 35m+25m, including left side cantilever slab FRP modular units 4, box beam top FRP modular units 5, right side cantilever slab FRP modular units
6th, reinforced concrete bridge deck plate 9 and girder steel 10, the left side cantilever slab FRP modular units 4, box beam top FRP modular units 5,
Right side cantilever slab FRP modular units 6 are set gradually from left to right on girder steel 10, the left side cantilever slab FRP modular units 4,
Box beam top FRP modular units 5, right side cantilever slab FRP modular units 6 are formed, and the case by the FRP template assemblies with T ribs
Back FRP modular units 5 are assembled according to the gradient and line style in direction across bridge by three sections of linear type FRP templates.And the reinforcing bar
Concrete slab 9 is set to left side cantilever slab FRP modular units 4, box beam top FRP modular units 5, right side cantilever slab FRP moulds
On the surface that plate unit 6 and girder steel 10 are formed, and 9 bottom transverse steel of the reinforced concrete bridge deck plate is supported on FRP
On the T ribs of template, bottom longitudinal reinforcement and prestressed strand are passed through from FRP templates.
FRP templates are for the bottom plate of the concrete of remaining position in addition to girder steel top surface and template when pouring, FRP- coagulations
Native floorings are located on girder steel.FRP templates include 3, two inverted L-shaped webs 1 of bottom plate and T ribs 2, two inverted L-shaped webs 1 divide
It is not symmetrically disposed on the both sides of bottom plate 3, and the cross rib 12 of inverted L-shaped web 1 is oppositely arranged.The T ribs 2 are set on bottom plate 3, and
Between two inverted L-shaped webs 1.The stiffness reliability requirement of baseplate width and inverted L-shaped web height in work progress is true
It is fixed.
FRP templates are divided into standard FRP templates and non-standard FRP templates, and in standard FRP templates, inverted L-shaped web height is
100m, thickness 4mm.Top flange width is 50mm, thickness 6mm.T ribs top flange is lifted off baseplate inner surface height as 43mm,
Top flange width is 30mm, and the thickness of top flange and perpendicular floor is 6mm.The width of bottom plate is 449mm, thickness 6mm.It is and nonstandard
Quasi- FRP templates are various sizes of FRP templates, by carrying out cutting formation to standard FRP templates.Wherein, left side cantilever slab FRP
Modular unit 4, right side cantilever slab FRP modular units 6 are directly cut by standard FRP templates.
As shown in figure 3, the girder steel 10 is vertically arranged with more than two girder steel diaphragms 11, the FRP templates are set
It is placed in the outside side of the girder steel diaphragm 11 between two girder steel diaphragms 11 and on side and then forms box beam top FRP
Modular unit 5.FRP modular units 5 are made of standard FRP templates and non-standard FRP templates.
The FRP templates are equipped with preformed hole, the reinforced concrete respectively in longitudinal reinforcement and prestressed strand by position
Native 9 bottom longitudinal reinforcement of floorings and prestressed strand pass through respectively from its corresponding preformed hole.
The FRP template surfaces are by polishing and scab interface processing.
As shown in Fig. 2, the girder steel 10 be groove profile steel box-girder, mainly by left roof 101, right top plate 102, left web 103,
Right web 104, bottom plate 1 and ribbed stiffener 106 form, wherein, left web 103, right web 104 are separately positioned on bottom plate one
105 left and right sides, and the left roof 101, right top plate 102 set its corresponding left web 103, on right web 104 respectively,
And the left roof 101, right top plate 102 are arranged in parallel with bottom plate 1.The ribbed stiffener 106 is set to left web 103, the right side
On web 104 and bottom plate 1.The left side cantilever slab FRP modular units 4 are set to the left side of left roof 101, described
Right side cantilever slab FRP modular units 6 are set to the right of right top plate 102, and described 5 one end of box beam top FRP modular units with it is left
The right connection of top plate 101, the other end are connect with the left side of right top plate 102.Wherein, left roof 101,102 width of right top plate are equal
It is 32mm for 800mm, thickness.Left web 103,104 height of right web are 1088mm, and thickness is 25mm.Bottom plate 1
Width and thickness are respectively 4560mm and 25mm.
Reinforced concrete bridge deck plate 9 along direction across bridge width be 8500mm, horizontal slope 2%.Reinforced concrete bridge deck plate 9 is outstanding
Height at arm end is 200mm, and on girder steel top, position height is 400mm, is 300mm in box beam inner height.
As shown in Fig. 2, the 2 interim branch set between girder steel 10 and left side cantilever slab FRP modular units 4 by direction across bridge
Support steel pipe 1 is supported, and the temporary support steel pipe 1 is fixed with left side cantilever slab FRP modular units 4 by positioning
Angle steel 1 is fixed.Faced between girder steel 10 and right side cantilever slab FRP modular units 6 by 2 set by direction across bridge
When supporting steel pipe 2 72 be supported, and the temporary support steel pipe 2 72 and right side cantilever slab FRP modular units 6 pass through positioning
Fixed angle steel 2 82 is fixed.And box beam top FRP modular units 5 set supporting point along 2 three branches of direction across bridge, and pass through
Temporary support steel pipe 3 73 is supported on girder steel 10.Temporary support steel pipe 1, temporary support steel pipe 2 72, temporary support steel pipe
3 73 a diameter of 45mm, thickness of steel pipe 3.5mm.And the left side cantilever slab FRP modular units 4 are by being set to left roof
Positioning on 101 left side is fixed angle steel 3 83 and is fixed on the positioning, and the right side cantilever slab FRP modular units 6 pass through setting
Angle steel 3 83 is fixed in the positioning on the right of right top plate 102 to be fixed on the positioning, and the box beam top FRP modular units 5 one
It holds and is fixed on the positioning with the positioning fixation angle steel 3 83 on the right of left roof 101, on the left side of the other end and right top plate 102
Positioning fix angle steel 3 83 be fixed on the positioning.
Leg of angle long 56mm, the thickness 5mm of the fixed angle steel 1 of positioning, the fixed angle steel 2 82 of positioning, position fixed angle steel
3 83 leg of angle long 20mm, thickness 3mm.
A kind of construction method of separate type FRP- concrete-steel combination beam bridge structure, specifically includes following steps：
Step 1, by the FRP templates with T ribs according to bridge direction across bridge and vertical bridge to line style and length made and cut
It cuts, is punched in longitudinal reinforcement and prestressed strand by position.During cutting, in direction across bridge, FRP templates are according to floorings bottom plate
Cross fall variation is cut, and each section is straightway.It is put down with the FRP template assemblies in Fig. 3 in the range of end bay 25m across footpaths
For the figure of face, in direction across bridge, left side cantilever slab FRP modular units 4, right side cantilever slab FRP modular units 6 are using master die
Several FRP templates, box beam top FRP modular units 5 are made of the FRP templates of standard module and the FRP templates of non-standard modulus.
Step 2, each section of GFRP groove profiles template carries out polishing and scab interface processing.
RP templates need the interface of gluing to include the plate upper surface of groove type plate and the lateral surface of two webs.Therefore it needs
It to polish the inside of the bottom plate 3 of FRP templates and the outside of inverted L-shaped web 1, gluing is carried out after the inside polishing of bottom plate 3
And spreading sand and rubble.Wherein, it needs to polish at interface before gluing and fluff, after gluing, the FRP templates that are contacted with concrete
Upper surface need uniform spreading sand and rubble, to strengthen the bonding of FRP plate and concrete.The grain size of sand and rubble need to meet bonding
It is required that.
Step 3, it sets up FRP molds platform for lining and carries out laterally assembly, by each section of FRP template according to floorings cross dip
It is assembled with position, and passes through the integral mold plate that steel plate of shaping connects into one group or more, to ensure that FRP contacts baseplates position is smooth,
Meet the required size of bridge and angle.
Using steel, wooden component processing FRP mold platform for lining, the top flange of girder steel 10 is not laid with FRP templates, girder steel its
The FRP templates at his position form left side cantilever slab FRP modular units 4, box beam top FRP modular units 5, the right side by line style assembly respectively
Side cantilever slab FRP modular units 6.
Step 4, longitudinally it is assembled into separable module.It is distributed according to Lifting Capacity, Deformation control requirement and longitudinal across footpath,
In 1 outside gluing of inverted L-shaped web, integral mold plate assembled in step 3 is indulged bridge and be spliced into bonding along bridge and is divided one by one
From module, and apply pressure in the outside of inverted L-shaped web 1 with secure bond, wherein, visual Lifting Capacity can be by multigroup template
It is bonded to the separable module of 3~5m long along longitudinal direction for hanging.
Step 5, girder steel is set up, according to crane capacity, the good girder steel 10 of prefabrication is lifted into Temporary Piers or bridge paragraph by paragraph
On pier, and integral continuous structure is welded in defined position.
Step 6, it sets to position cantilever slab FRP moulds on the left of fixed along bridge is longitudinally elongated in 10 top flange both sides of girder steel
Angle steel 3 83, Ran Hou are fixed in the positioning of plate unit 4, box beam top FRP modular units 5 and right side cantilever slab FRP modular units 6
10 inside installation of girder steel is used to support the temporary support steel pipe 3 73 of box beam top FRP modular units 5.In the left and right sides of girder steel 10
Setting temporary support steel pipe 1, temporary support steel pipe 2 72 respectively.It is provided on the temporary support steel pipe 1 for fixed
Angle steel 1 is fixed in the positioning of the fixed left side cantilever slab FRP modular units 4 in position, is provided on temporary support steel pipe 2 72 for fixed
Angle steel 2 82 is fixed in the positioning of the fixed right side cantilever slab FRP modular units 6 in position.Box beam top FRP modular units 5 are along direction across bridge simultaneously
Supporting point is set at 2 three branches, and left side cantilever slab FRP modular units 4, right side cantilever slab FRP modular units 6 distinguish cross-bridges
To 2 temporary support points of setting.As shown in Fig. 2, along bridge, longitudinally angle steel 3 83 is fixed in elongated setting positioning, and then installation is interim
Supporting steel pipe 3 73, sets the fixed angle steel 2 82 of the fixed angle steel 1 of positioning, positioning in 10 top flange both sides of girder steel, and along bridge
Temporary support steel pipe 1, the temporary support steel pipe 2 72 of FRP templates are longitudinally, laterally set.For floorings wing plate, direction across bridge
2 temporary support points are set.It, need to be in 2 three branches setting branch along direction across bridge in chamber for the indoor top surface FRP templates of case
Support point.
Step 7, good FRP modules grouping assembled in step 4 is lifted on girder steel 10, along direction across bridge it is in place after in FRP
The 1 outside viscose glue of both ends inverted L-shaped web of module carries out longitudinal spliced.Ensure that FRP plate bottom plate is concordant in splicing, preformed hole
Alignment.
Step 8, lashing bridge slab reinforcement net and pouring reinforcement concrete floorings 9, treat concrete curing to prescribed strength
Post-stress beam completes Surfacing Construction.
Bottom longitudinal reinforcement and prestressed strand are passed through from FRP preformed holes, and bottom transverse steel is supported on the T of FRP templates
On rib.In steel beam position, concrete directly pours the edge of a wing on it, and in girder steel both sides, concreting is in FRP templates.
Before glue solidification completely, forbidden moves template, and carry out waterproof isocolloid maintenance work.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of separate type FRP- concrete-steel combination beam bridge structure, it is characterised in that：Including left side cantilever slab FRP template lists
First (4), box beam top FRP modular units (5), right side cantilever slab FRP modular units (6), reinforced concrete bridge deck plate (9) and steel
Beam (10), the left side cantilever slab FRP modular units (4), box beam top FRP modular units (5), right side cantilever slab FRP template lists
First (6) are set gradually from left to right on girder steel (10), the left side cantilever slab FRP modular units (4), box beam top FRP templates
Unit (5), right side cantilever slab FRP modular units (6) are formed by the FRP template assemblies with T ribs, and the box beam top FRP moulds
Plate unit (5) is assembled according to the gradient and line style in direction across bridge by three sections of linear type FRP templates；And the reinforced concrete bridge
Panel (9) is set to left side cantilever slab FRP modular units (4), box beam top FRP modular units (5), right side cantilever slab FRP templates
On the surface that unit (6) and girder steel (10) are formed, and the reinforced concrete bridge deck plate (9) bottom transverse steel is supported on
On the T ribs of FRP templates, bottom longitudinal reinforcement and prestressed strand are passed through from FRP templates.
2. separate type FRP- concrete according to claim 1-steel combination beam bridge structure, it is characterised in that：The girder steel
(10) more than two girder steel diaphragms (11) are vertically arranged with, the FRP template-setups are in two girder steel diaphragms (11)
Between and girder steel diaphragm (11) on side outside side so that form box beam top FRP modular units (5).
3. separate type FRP- concrete according to claim 1-steel combination beam bridge structure, it is characterised in that：The FRP moulds
Plate is equipped with preformed hole respectively in longitudinal reinforcement and prestressed strand by position, and reinforced concrete bridge deck plate (9) bottom is indulged
It is passed through respectively from its corresponding preformed hole to reinforcing bar and prestressed strand.
4. separate type FRP- concrete according to claim 1-steel combination beam bridge structure, it is characterised in that：The FRP moulds
Plate surface is by polishing and scab interface processing.
5. separate type FRP- concrete according to claim 1-steel combination beam bridge structure, it is characterised in that：The FRP moulds
Plate includes bottom plate (3), two inverted L-shaped webs (1) and T ribs (2), and two inverted L-shaped webs (1) are symmetrically arranged in bottom plate
(3) both sides, and the cross rib (12) of inverted L-shaped web (1) is oppositely arranged；The T ribs (2) are set on bottom plate (3), and positioned at two
Between a inverted L-shaped web (1).
6. separate type FRP- concrete according to claim 1-steel combination beam bridge structure, it is characterised in that：The girder steel
(10) it is groove profile steel box-girder, is mainly made of left roof, right top plate, left web, right web, bottom plate one and ribbed stiffener, wherein, it is left
Web, right web are separately positioned on the left and right sides of bottom plate one, and the left roof, right top plate set its corresponding left abdomen respectively
On plate, right web, and the left roof, right top plate and bottom plate one are arranged in parallel；The ribbed stiffener is set to left web, right web
And on bottom plate one；The left side cantilever slab FRP modular units (4) are set to the left side of left roof, the right side cantilever slab FRP
Modular unit (6) is set to the right of right top plate, and connects on the right of described box beam top FRP modular units (5) one end and left roof
It connects, the other end is connect with the left side of right top plate.
7. a kind of construction party based on any separate type FRP- concrete-steel combination beam bridge structure of claim 1 to 6
Method, which is characterized in that include the following steps：
Step 1, by the FRP templates with T ribs according to bridge direction across bridge and vertical bridge to line style and length made and cut,
Longitudinal reinforcement and prestressed strand are punched by position；
Step 2, each section of GFRP groove profiles template carries out polishing and scab interface processing；
Step 3, FRP mold platform for lining is set up, each section of FRP template is assembled, and lead to according to floorings cross dip and position
Cross the integral mold plate that sizing steel plate connects into one group or more；
Step 4, integral mold plate assembled in step 3 is indulged bridge along bridge and is spelled to bonding by the gluing on the outside of inverted L-shaped web (1)
The module detached one by one is connected into, and applies pressure on the outside of inverted L-shaped web (1) with secure bond；
Step 5, prefabricated girder steel (10) is lifted on Temporary Piers or bridge pier, and be welded into defined position whole paragraph by paragraph
Body；
Step 6, in girder steel (10) top flange both sides, along bridge, longitudinally elongated setting fixes left side cantilever slab FRP templates for positioning
Angle steel three (83) is fixed in the positioning of unit (4), box beam top FRP modular units (5) and right side cantilever slab FRP modular units (6),
The temporary support steel pipe three (73) for being used to support box beam top FRP modular units (5) is then installed inside girder steel (10)；In girder steel
(10) the left and right sides sets temporary support steel pipe one (71), temporary support steel pipe two (72) respectively；The temporary support steel pipe
It is provided on one (71) and fixes angle steel one (81) for positioning the positioning of fixed left side cantilever slab FRP modular units (4), it is interim to prop up
It is provided on support steel pipe two (72) and fixes angle steel two (82) for positioning the positioning of fixed right side cantilever slab FRP modular units (6)；
Box beam top FRP modular units (5) are along setting supporting point at 2 three branches of direction across bridge simultaneously, and left side cantilever slab FRP modular units
(4), direction across bridge sets 2 temporary support points to right side cantilever slab FRP modular units (6) respectively；
Step 7, good FRP modules grouping assembled in step 4 is lifted on girder steel (10), along direction across bridge it is in place after in FRP moulds
Viscose glue carries out longitudinal spliced on the outside of the both ends inverted L-shaped web (1) of block；
Step 8, lashing bridge slab reinforcement net and pouring reinforcement concrete floorings (9), after concrete curing to prescribed strength
Stretch-draw prestressing force beam.
8. the construction method of separate type FRP- concrete according to claim 7-steel combination beam bridge structure, feature exist
In：
When FRP templates are cut in the step 1, in direction across bridge, FRP templates change according to the cross fall of floorings bottom plate to be carried out
Cutting, each section is straightway；
It is polished in the step 2 GFRP groove profile templates and the method for scab interface processing：To the bottom plate (3) of FRP templates
Inside and inverted L-shaped web (1) on the outside of polish, carry out gluing and spreading sand and rubble after the polishing of the inside of bottom plate (3).
9. the construction method of separate type FRP- concrete according to claim 7-steel combination beam bridge structure, feature exist
In：In the step 3, using steel, wooden component processing FRP mold platform for lining, the top flange of girder steel (10) is not laid with FRP moulds
Plate, the FRP templates at other positions of girder steel form left side cantilever slab FRP modular units (4), box beam top by line style assembly respectively
FRP modular units (5) and right side cantilever slab FRP modular units (6).
10. the construction method of separate type FRP- concrete according to claim 7-steel combination beam bridge structure, feature exist
In：In the step 8, bottom longitudinal reinforcement and prestressed strand are passed through from FRP preformed holes, and bottom transverse steel is supported on FRP
On the T ribs of template；In steel beam position, concrete directly pours the edge of a wing on it, and in girder steel both sides, concreting is in FRP moulds
On plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785473.6A CN106337361B (en) | 2016-08-29 | 2016-08-29 | A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785473.6A CN106337361B (en) | 2016-08-29 | 2016-08-29 | A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337361A CN106337361A (en) | 2017-01-18 |
| CN106337361B true CN106337361B (en) | 2018-06-15 |
Family
ID=57822354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610785473.6A Active CN106337361B (en) | 2016-08-29 | 2016-08-29 | A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337361B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166373B (en) * | 2017-12-15 | 2020-05-05 | 东南大学 | Replaceable component for improving fatigue performance of steel box girder and construction method thereof |
| CN109722977A (en) * | 2019-01-31 | 2019-05-07 | 深圳市综合交通设计研究院有限公司 | A kind of Composite Steel-Concrete Bridges and its construction method with novel deck structrue |
| CN110886231A (en) * | 2019-12-13 | 2020-03-17 | 中铁第四勘察设计院集团有限公司 | Construction method of bridge panel and supporting structure thereof |
| CN110983987B (en) * | 2019-12-24 | 2021-07-13 | 德州市公路工程总公司 | Construction method of steel-concrete combined beam |
| CN112832137A (en) * | 2021-01-07 | 2021-05-25 | 安徽省公路桥梁工程有限公司 | Steel box-concrete combined beam bridge deck formwork system and construction method |
| CN115012325A (en) * | 2022-05-06 | 2022-09-06 | 西安交通大学 | Concrete box girder bridge reinforcing scheme based on FRP (fiber reinforced plastic) section bars |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100727675B1 (en) * | 2006-09-04 | 2007-06-13 | 주식회사 포스코건설 | Concrete bridge deck and construction method thereof |
| KR100782523B1 (en) * | 2006-09-12 | 2007-12-06 | 현대건설주식회사 | Prestressed concrete box girder bridge having struts |
| CN101824797A (en) * | 2010-04-13 | 2010-09-08 | 东南大学 | Steel-fiber reinforced composite material high strength concrete hollow interlayer combination bridge deck |
| CN104674658A (en) * | 2015-01-12 | 2015-06-03 | 东南大学 | Single layer FRP concrete composite bridge slab construction method |
| CN204589815U (en) * | 2015-05-06 | 2015-08-26 | 山东大学 | Prefabricated assembled FRP-steel-concrete combined bridge deck |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641607B1 (en) * | 2005-06-02 | 2006-11-02 | 한국건설기술연구원 | Fiber reinforced plastics deck module having integrated shear connector and concrete composite deck using thereof |
-
2016
- 2016-08-29 CN CN201610785473.6A patent/CN106337361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100727675B1 (en) * | 2006-09-04 | 2007-06-13 | 주식회사 포스코건설 | Concrete bridge deck and construction method thereof |
| KR100782523B1 (en) * | 2006-09-12 | 2007-12-06 | 현대건설주식회사 | Prestressed concrete box girder bridge having struts |
| CN101824797A (en) * | 2010-04-13 | 2010-09-08 | 东南大学 | Steel-fiber reinforced composite material high strength concrete hollow interlayer combination bridge deck |
| CN104674658A (en) * | 2015-01-12 | 2015-06-03 | 东南大学 | Single layer FRP concrete composite bridge slab construction method |
| CN204589815U (en) * | 2015-05-06 | 2015-08-26 | 山东大学 | Prefabricated assembled FRP-steel-concrete combined bridge deck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337361A (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106337361B (en) | A kind of separate type FRP- concrete-steel combination beam bridge structure and construction method | |
| CN105839510B (en) | A kind of steel and ultra-high performance concrete composite continuous bridge structure and its construction method | |
| US4604841A (en) | Continuous, precast, prestressed concrete bridge deck panel forms, precast parapets, and method of construction | |
| CN105002816B (en) | The fish belly I shape prestressing force steel reinforced concrete composite continuous bridge of precast assembly and construction method | |
| CN104294748B (en) | A kind of hybrid beam cable-stayed bridge adapter section structure and construction method thereof | |
| CN101781878B (en) | Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof | |
| CN106638304A (en) | UHPC-common-concrete-lamination composite bridge-deck-slab construction and constructing method thereof | |
| CN108867310A (en) | The short rib T beam bridge of pretensioning prestressed concrete and its construction method | |
| CN105603860A (en) | Prefabricated T beam and construction method | |
| CN103233421B (en) | Pre-stressed concrete variable cross-section box girder bridge and construction method thereof | |
| CN108638324A (en) | A kind of construction method of prefabricated case beam | |
| CN105297982A (en) | Laminated slab floor system based on pre-stress baseplate with truss and preparation method of same | |
| CN108342973A (en) | Whole H profile steel-concrete composite beam bridge and construction method across prefabricated installation | |
| CN205063133U (en) | Superimposed sheet superstructure system of prestressing force bottom plate based on take truss | |
| CN106087711B (en) | Antinode work beam-steel concrete top plate-external prestressing combines T-shaped simply supported beam | |
| CN106223183A (en) | Assembled concrete-filled rectangular steel tube combination truss bridge and construction method | |
| CN113638304A (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| CN107386246B (en) | A kind of lock chamber wall Construction Through Form on Traveler method | |
| CN110042743A (en) | The hydraulic climbing die block system of twin legged thin wall hollow pier with synchronize climb construction technology | |
| CN112281663B (en) | Construction method for widening connection of upper structures of new and old bridges | |
| CN205934687U (en) | Antinode worker roof beam - steel concrete roof - external prestress combination T type simple beam | |
| CN103205930B (en) | Structure for continuous transformation of existing simply supported hollow slab girder bridge and construction method of structure | |
| CN112376400A (en) | Wet joint structure of precast concrete beam and construction process thereof | |
| CN216108007U (en) | Concrete beam type bridge and cast-in-situ hidden cover beam thereof | |
| CN205474785U (en) | Steel - ultra high performance concrete combination continuous bridge structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |