CN105986545A - Prefabricated composite beam segment connecting structure and application thereof - Google Patents
Prefabricated composite beam segment connecting structure and application thereof Download PDFInfo
- Publication number
- CN105986545A CN105986545A CN201510047342.3A CN201510047342A CN105986545A CN 105986545 A CN105986545 A CN 105986545A CN 201510047342 A CN201510047342 A CN 201510047342A CN 105986545 A CN105986545 A CN 105986545A
- Authority
- CN
- China
- Prior art keywords
- prefabricated composite
- concrete
- attachment structure
- splice plate
- composite girder
- 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.)
- Pending
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a prefabricated composite beam segment connecting structure and application thereof. The connecting structure comprises a splice plate set composed of a large splice plate and two small splice plates and a bolt group composed of at least two sets of bolt pairs. Each bolt pair comprises a threaded rod with a thread, a retaining nut for connecting the surfaces of the small splice plates, a fastening nut for connecting the surfaces of the large splice plates and an anchoring nut connected to the free end of the threaded rod with the thread. The prefabricated composite beam segment connecting structure can be applied to connection of a composite beam, and the composite beam comprises concrete precast slabs, a concrete post-cast section and the connecting structure. Compared with the prior art, the prefabricated composite beam segment connecting structure has the advantages that production and installation cost is lowered, construction of projects is accelerated, total cost of the projects is lowered, and durability of the structure is improved.
Description
Technical field
The present invention relates to combinative structure field, especially relate to a kind of Prefabricated composite girder segment attachment structure and containing even
The combination beam of access node structure.
Background technology
The most same cross section of combinative structure or each rod member have the structure that two or more material makes, because of its material profit
With rationally, the advantage such as convenient of constructing, extensively applied in road and bridge and building field.In recent years, combinative structure is even
Continuous beam gradually replaces simply supported beam because of the advantages such as comfortable, building height is little, good integrity of driving a vehicle, and becomes combinative structure beam
The main expression-form of formula bridge.
At present, in steel performance, girder steel joint area typically has two kinds of versions, welding and bolt
Connect.Welding can produce bigger construction error；And residual stress can be produced, for girder steel part fatigue extremely
Unfavorable.But latching mechanism is simple, it is reliable to connect, quick construction, be convenient to mount and dismount.Therefore, many employings in engineering
Bolt carries out the connection of girder steel.
But, in steel performance, girder steel joint area bolt typically has two kinds of versions, at knot
Structure position is not provided with shear connector and welds shear connector on the upper splice plate of structure position.If in structure
Position is not provided with shear connector, and steel at this can be caused more weak with the combination of concrete, and girder steel can bear bigger lotus
Carry so that original weak jointing stress is the most unfavorable.Cut if welded on the upper splice plate of joint area
Power connector, often have influence on high-strength bolt tightens operation, causes the layout quantity of shear connector to be limited
System.And under load action, the stress of shear connector will be transferred directly to splice plate so that upper splice plate
Bear bigger Local Loads, the local of upper splice plate can be caused to start or lever up, the lever starting or levering up
Effect can produce bigger effect at high-strength bolt position, splice plate may be caused directly to come to nothing with girder steel, cause
Both are made directly to produce relative slip or the changing of the relative positions.As fruit structure bears bigger load width or steel and concrete
Between bear bigger tension load, the shear connector of joint area there will be fatigue rupture phenomenon.
Therefore, a kind of novel steel and concrete combination beam joint construction are developed for ensureing between steel and concrete
Effectively connect and the fatigue strength tool of raising connecting portion is of great significance.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of Prefabricated combined beam is provided
Sections attachment structure and application thereof.
The purpose of the present invention can be achieved through the following technical solutions:
Prefabricated composite girder segment attachment structure, including:
Splice plate group: at least include one piece of big splice plate and two pieces of little splice plates,
Bolt group: at least including two set bolt pairs, often set bolt pair includes a threaded screw rod, is connected to little spelling
The fixing nut on fishplate bar surface, be connected to big splice plate surface clamp nut and be connected to threaded screw rod from
By the anchoring nut held.
Two pieces of parallel lower surfaces being located at girder steel top flange plate of little splice plate, big splice plate is located on girder steel top flange plate
Surface, splice plate group is connected with girder steel top flange plate through bolt group.
The free end of described threaded screw rod has certain length to stretch into the section of watering after combination beam concrete.
Also include two sections of girder steels, be connected with splice plate group through bolt group.
Described girder steel is plate girder, steel box-girder or steel truss girder.
The application of Prefabricated composite girder segment attachment structure, this Prefabricated composite girder segment attachment structure and at least two pieces of combinations
The section of watering composition group after beam concrete prefabricated board, at least one block of combination beam concrete being arranged between concrete prefabricated board
Closing beam, described Prefabricated composite girder segment attachment structure is connected to after combination beam concrete bottom the section of watering.
Screw rod in bolt group and anchoring nut are embedded in after described combination beam concrete in the section of watering.
Described combination beam uses following methods to construct:
(1) two sections of girder steel parts are spliced by splice plate group and bolt group；
(2) free end in bolt group installs anchoring nut；
(3) casting concrete in the section of watering after combination beam concrete, makes concrete wrap the free end of bolt group
With anchoring nut, carry out the health preserving of concrete and reach intended strength grade, so far completing Prefabricated composite girder segment
Connection.
Compared with prior art, the invention have the advantages that
One, the splicing of this combination beam connects without fielding welding, reduces fabrication and installation cost, accelerates engineering
Speed of application, reduce the total cost of engineering, improve the durability of structure.
Two, effective connection of the steel construction of crucial force part in combination beam is ensured by high-strength bolt pair, logical
Cross high-strength bolt pair to have the free end screw rod of certain length and anchors nut and ensure that steel effectively connects with concrete
Connect, the connecting material consumption of combination beam can be reduced relative to other traditional form connecting structure.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of the present invention in embodiment 1；
Fig. 2 is the facade structures schematic diagram of the present invention in embodiment 1；
Fig. 3 is the section structure schematic diagram of the present invention in embodiment 2；
Fig. 4 is the facade structures schematic diagram of the present invention in embodiment 2；
Fig. 5 is the section structure schematic diagram of the present invention in embodiment 3；
Fig. 6 is the facade structures schematic diagram of the present invention in embodiment 3；
Fig. 7 is the constructing structure schematic diagram in embodiment 4 in step (1)；
Fig. 8 is the constructing structure schematic diagram implemented in 4 in step (1)；
Fig. 9 is the constructing structure schematic diagram in embodiment 4 in step (2)；
Figure 10 is the constructing structure schematic diagram in embodiment 4 in step (3)；
Figure 11 is the constructing structure schematic diagram implemented in 4 in step (3)；
Detailed description of the invention
A kind of Prefabricated composite girder segment attachment structure of the present invention being proposed below in conjunction with the drawings and specific embodiments, contain
The combination beam of this Prefabricated composite girder segment attachment structure is described in further detail.According to following explanation and claim
Book, advantages and features of the invention will be apparent from.It should be noted that, accompanying drawing all uses the form simplified very much and all
Use non-ratio accurately, only in order to facilitate, to aid in illustrating lucidly the purpose of the embodiment of the present invention.
Embodiment 1
In conjunction with Fig. 1 and Fig. 2, the concrete structure of the present invention is illustrated.Prefabricated composite girder segment attachment structure 300,
It is mainly used in combinative structure continuous beam hogging moment area, and it includes a splice plate group 200.Splice plate group 200 includes
Big splice plate 201 and little splice plate 202.Splice plate group 200 is provided with the most a set of height can being connected with girder steel
Strength bolts pair 100.Above-mentioned high-strength bolt pair 100 include a threaded screw rod 101, fixing nut 102,
Clamp nut 103, anchoring nut 104, pad 1 and pad 2 106.Wherein, pad 1 is positioned at
Fixing between nut 102 and little splice plate 202, pad 2 106 is positioned at clamp nut 103 and big splice plate 201
Between.Fixing nut 102 is positioned at the lower surface of steel beam flange, and the free end of threaded screw rod 101 passes steel
The edge of a wing of beam and splice plate group 200 be partly embedded into concrete slab.Concrete slab, splice plate group 200 and girder steel are logical
Cross high-strength bolt auxiliary connection 100 to be closely attached together.
When high-strength bolt pair 100 bears bigger pulling capacity, can be at the threaded screw rod of Transducers Embedded in Concrete plate
The free end of 101 sets up anchoring nut 104, to increase the pulling test strength of high-strength bolt pair 100.High-strength bolt
Bolt strength grade in secondary 100 is 8.8 grades or 10.9 grades, threaded screw rod 101, fixing nut 102 table
Face all carries out zinc-plated or phosphatization etc. and processes to strengthen its antiseptic power.
Embodiment 2:
In conjunction with Fig. 3 and Fig. 4, the concrete structure of the present invention is illustrated.Prefabricated composite girder segment attachment structure 300,
The most same as in Example 1, difference is, the Prefabricated composite girder segment attachment structure 300 of the present embodiment
Also including at least two sections of girder steels 301, splice plate group 200 is by least two set high strength bolt connection pairs 100 and steel
Beam 301 connects.
Girder steel 301 is plate girder, steel box-girder or steel truss girder.In addition, splice plate group 200 and girder steel 301
Top plate contact face use meet the anticorrosive coating system that rubbing surface requires.
Embodiment 3
In conjunction with Fig. 5 and Fig. 6, the concrete structure of the present invention is illustrated.The present embodiment is to save containing Prefabricated combined beam
The combination beam 400 of section connection structure, after it includes at least two pieces of precast slabs 402 and at least one section concrete
The section of watering 401, and the most a set of it is positioned at the Prefabricated composite girder segment attachment structure of the section of watering 401 bottom after concrete
300.In Prefabricated composite girder segment attachment structure 300, the fixing end of threaded screw rod 101 is positioned on girder steel 301
Bottom surface, the edge of a wing, the free end of threaded screw rod 101 passes girder steel 301 top flange and splice plate group 200 and buries underground
After concrete in the section of watering 401.The same high-strength bolt of drilling precision of splice plate group 200 and girder steel 301 bolt hole
Drilling requirement, when combination beam 400 is longer, according to the section of watering 401 vertical after precast slab 402 and concrete
Bolt hole suitably can be amplified to deformation.
Embodiment 4
Combination beam uses following methods to construct:
(1) as shown in Fig. 7 (sectional drawing) and Fig. 8 (elevation), girder steel 301 is installed splice plate group
200 and high strength bolt connection pairs 100；
(2) as shown in Fig. 9 (sectional drawing), set up template 500, make the upper surface of template 500 and big splice plate
The upper surface of 201 is concordant, and the section of watering 401 after the casting concrete of template 500 upper end；
(3) as shown in Figure 10 (sectional drawing) and Figure 11 (elevation), treat concrete slab reach design strength and
After age, form removal, complete the installation of combination beam.
In addition to this it is possible to anchor is set up in the end of the threaded screw rod 101 of the section of watering 401 after Transducers Embedded in Concrete
Gu nut 104, to increase the pulling test strength of high-strength bolt pair 100.
Foregoing description is only the description to preferred embodiment of the present invention, not any restriction to the scope of the invention,
Any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belong to right and want
Seek the protection domain of book.
Claims (8)
1. Prefabricated composite girder segment attachment structure, it is characterised in that including:
Splice plate group: at least include one piece of big splice plate and two pieces of little splice plates,
Bolt group: at least including two set bolt pairs, often set bolt pair includes a threaded screw rod, is connected to little spelling
The fixing nut on fishplate bar surface, be connected to big splice plate surface clamp nut and be connected to threaded screw rod from
By the anchoring nut held.
Prefabricated composite girder segment attachment structure the most according to claim 1, it is characterised in that two pieces of little spellings
The parallel lower surface being located at girder steel top flange plate of fishplate bar, big splice plate is located at girder steel top flange plate upper surface, splice plate
Group is connected with girder steel upper flange through bolt group.
Prefabricated composite girder segment attachment structure the most according to claim 1, it is characterised in that described band
The free end of the screw rod of screw thread has certain length to stretch into the section of watering after combination beam concrete.
Prefabricated composite girder segment attachment structure the most according to claim 1, it is characterised in that also include two
Duan Gangliang, is connected with splice plate group through bolt group.
Prefabricated composite girder segment attachment structure the most according to claim 1, it is characterised in that described steel
Beam is plate girder, steel box-girder or steel truss girder.
6. the application of the Prefabricated composite girder segment attachment structure as according to any one of claim 1-5, its feature
It is, this Prefabricated composite girder segment attachment structure and at least two pieces of combination beam concrete prefabricated boards, is arranged on concrete
After at least one block of combination beam concrete between precoated plate, the section of watering constitutes combination beam, and described Prefabricated composite girder segment is even
Access node structure is connected to after combination beam concrete bottom the section of watering.
The application of Prefabricated composite girder segment attachment structure the most according to claim 6, it is characterised in that spiral shell
Screw rod in bolt group and anchoring nut are embedded in after described combination beam concrete in the section of watering.
The application of Prefabricated composite girder segment attachment structure the most according to claim 6, it is characterised in that institute
The combination beam stated uses following methods to construct:
(1) two sections of girder steel parts are spliced by splice plate group and bolt group；
(2) free end in bolt group installs anchoring nut；
(3) casting concrete in the section of watering after combination beam concrete, makes concrete wrap the free end of bolt group
With anchoring nut, carry out the health preserving of concrete and reach intended strength grade, so far completing Prefabricated composite girder segment
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047342.3A CN105986545A (en) | 2015-01-29 | 2015-01-29 | Prefabricated composite beam segment connecting structure and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047342.3A CN105986545A (en) | 2015-01-29 | 2015-01-29 | Prefabricated composite beam segment connecting structure and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105986545A true CN105986545A (en) | 2016-10-05 |
Family
ID=57036631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047342.3A Pending CN105986545A (en) | 2015-01-29 | 2015-01-29 | Prefabricated composite beam segment connecting structure and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894431A (en) * | 2018-07-26 | 2018-11-27 | 广西大学 | Friction shear resisting fashioned iron-precast concrete combination beam preparation and its construction method |
| CN113463771A (en) * | 2021-05-21 | 2021-10-01 | 北京航空航天大学 | Steel beam connecting structure, steel-concrete composite slab beam and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11166208A (en) * | 1997-12-04 | 1999-06-22 | Ishikawajima Harima Heavy Ind Co Ltd | Composite steel floor slab girder and execution thereof |
| CN202248283U (en) * | 2011-08-09 | 2012-05-30 | 同济大学 | Connecting piece of joint part of steel and concrete combined structure |
| KR20120078945A (en) * | 2011-01-03 | 2012-07-11 | 권오근 | Prestressed concrete composite girder having corrugated steel plate web |
| CN102926505A (en) * | 2011-08-09 | 2013-02-13 | 同济大学 | Combination beam member |
| CN103590322A (en) * | 2013-11-05 | 2014-02-19 | 上海市政工程设计研究总院（集团）有限公司 | Shear force connecting part, combination beam comprising same and construction method of combination beam |
-
2015
- 2015-01-29 CN CN201510047342.3A patent/CN105986545A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11166208A (en) * | 1997-12-04 | 1999-06-22 | Ishikawajima Harima Heavy Ind Co Ltd | Composite steel floor slab girder and execution thereof |
| KR20120078945A (en) * | 2011-01-03 | 2012-07-11 | 권오근 | Prestressed concrete composite girder having corrugated steel plate web |
| CN202248283U (en) * | 2011-08-09 | 2012-05-30 | 同济大学 | Connecting piece of joint part of steel and concrete combined structure |
| CN102926505A (en) * | 2011-08-09 | 2013-02-13 | 同济大学 | Combination beam member |
| CN103590322A (en) * | 2013-11-05 | 2014-02-19 | 上海市政工程设计研究总院（集团）有限公司 | Shear force connecting part, combination beam comprising same and construction method of combination beam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894431A (en) * | 2018-07-26 | 2018-11-27 | 广西大学 | Friction shear resisting fashioned iron-precast concrete combination beam preparation and its construction method |
| CN113463771A (en) * | 2021-05-21 | 2021-10-01 | 北京航空航天大学 | Steel beam connecting structure, steel-concrete composite slab beam and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Shear performance of a novel demountable steel-concrete bolted connector under static push-out tests | |
| CN203603029U (en) | Shearing force connecting piece and composite beam with same | |
| CN103590322A (en) | Shear force connecting part, combination beam comprising same and construction method of combination beam | |
| CN101613997B (en) | Method for widening steel-concrete combination | |
| CN102926505A (en) | Combination beam member | |
| CN106193643B (en) | A kind of Prestressed CFRP plate stretching and anchoring device of reinforcing steel beam and combination beam | |
| Russell | Adjacent precast concrete box-beam bridges: State of the practice. | |
| CN105484151A (en) | Structure for enhancing connection among prefabricated concrete segments and construction method thereof | |
| CN110184896B (en) | Shear connector of UHPC waffle slab combined beam bridge, mounting structure and construction method | |
| CN204571092U (en) | Prefabricated composite girder segment syndeton and the compound beam containing syndeton | |
| CN202248283U (en) | Connecting piece of joint part of steel and concrete combined structure | |
| CN102926504A (en) | Connecting steel construction member for steel and concrete overlapped beam combined part and construction method thereof | |
| CN105986545A (en) | Prefabricated composite beam segment connecting structure and application thereof | |
| CN114197289B (en) | Assembling method of superposed beam type steel-concrete combined section | |
| CN105986631A (en) | Combined beam connecting structure with orifice plates and application thereof | |
| JP6642884B2 (en) | Bridge steel deck slab reinforcement structure and bridge steel deck slab reinforcement method | |
| JPH04285247A (en) | Member for introducing prestress and method of introducing prestress | |
| CN107386132B (en) | Implement the hollow slab bridge reinforcement means and hollow slab bridge of laterally folder connection enhancing to bottom plate | |
| CN204571093U (en) | The compound beam syndeton of tape welding nail and the compound beam containing this syndeton | |
| CN204570450U (en) | Compound beam syndeton with perforated panel and the compound beam containing this syndeton | |
| CN109853377A (en) | Using the continuously coupled structure of the bridge floor of ultra-high performance concrete and its construction method | |
| CN105986544A (en) | Combined beam connecting structure with welding studs and application thereof | |
| CN104695339B (en) | Wavelike steel webplate is used to carry out the construction method of concrete box girder Shear Strengthening | |
| JP2007327256A (en) | Fatigue-resistant steel floor slab | |
| CN109457866B (en) | Anti-sliding partially-wrapped composite beam and prefabricating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161005 |