CN110409712A - Prestressing force answers material-ultra-high performance concrete combination beam - Google Patents
Prestressing force answers material-ultra-high performance concrete combination beam Download PDFInfo
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- CN110409712A CN110409712A CN201910663101.XA CN201910663101A CN110409712A CN 110409712 A CN110409712 A CN 110409712A CN 201910663101 A CN201910663101 A CN 201910663101A CN 110409712 A CN110409712 A CN 110409712A
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 116
- 239000004567 concrete Substances 0.000 claims abstract description 50
- 239000012790 adhesive layer Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
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- 238000005452 bending Methods 0.000 description 3
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- 238000001125 extrusion Methods 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
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- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
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- 239000004568 cement Substances 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
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- 229920006253 high performance fiber Polymers 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses prestressing force to answer material-ultra-high performance concrete combination beam comprising: multiple material drawing and extruding section bar beam, ultra-high performance concrete edge of a wing panel, shear connector and prestressing combination part.Multiple material drawing and extruding section bar beam is connect by shear connector with ultra-high performance concrete edge of a wing panel；Prestressing combination part is connect by adhesive layer with multiple material drawing and extruding section bar beam；Prestressing combination part includes: multiple material hand paste rectangular section tube, concrete, prestressing force hole and prestressed component, and ultra-high performance concrete is filled in multiple material hand paste rectangular section tube, prestressing force hole is equipped in concrete, prestressed component is located in prestressing force hole.Material and Combined concrete, formation top concrete compression, lower part the combination beam of material tension will be answered again, and beam self weight can be mitigated on the basis of lifting beam stiffness of structural member, bearing capacity ability, and obtain more preferably corrosion resistance and convenience of constructing.
Description
Technical field
The present invention relates to technical field of civil, specifically, the present invention relates to a kind of prestressing force to answer material-very-high performance
Concrete combination beam.
Background technique
Since 19th century, reinforced concrete structure is answered the fields such as industry and civil buildings, bridge and Tunnel Engineering
With fast development, become the structure type being most widely used in the world.However, recent decades, reinforced concrete structure is complete
A series of endurance issues are exposed within the scope of ball.Wherein, steel bars corrosion problem is the most prominent, makes in the world every year
It is lost at a large amount of economic assets.The areas such as coastal waters, the island of the enrichment of cold district or chloride ion of deicer salts of splashing in winter, steel
Muscle corrosion problem is particularly acute.And the application of novel high-performance structural material can fundamentally solve the problems, such as this.In recent years,
Fibre reinforced composites (Fiber Reinforced Polymer, FRP referred to as answer material) and ultra-high performance concrete
(Ultra-high Performance Concrete, abbreviation UHPC) both high performance building materials receive more and more
Concern.
Fibre reinforced composites are mixed by the high performance fibers such as carbon fiber, glass fibre, aramid fiber and resin matrix
It closes, the nonmetallic materials being combined by certain processing technology.It is with lightweight, high-strength, antifatigue, corrosion-resistant, thermally conductive
The advantages that coefficient is low, convenient formation, is suitble to be on active service in erosion environment, have been widely used in Structural Engineering now, shows
Good mechanical property and durability are shown.The performance of composite material and moulding process are closely related, in various techniques, " draw
Squeeze " it is a kind of very high continuous production processes of industrialization degree, in production process, the fiber for impregnating resin passes through die material
Extruding, resin and fiber sufficiently infiltrate, solidify, and the multiple material drawing and extruding section bar quality produced is closely knit, performance is stable, fiber side
To being consistent, single load bearing performance is good.With the development of pultrude process, the section form of drawing and extruding section bar, size are more flexible, can
Design is strong, can satisfy the demand of engineer application, thus be just applied to more and more widely industrial premises, space structure,
Tier building and bridge structure.But multiple material has the shortcomings that low shear strength, wearability and impact resistance are poor, and multiple material
The plate of drawing and extruding section bar is relatively thin, and plate is easy to happen local buckling when compression.Therefore, in most cases, single in building structure
Solely composite material drawing and extruding section bar used as primary structure member be not the selection of an economical rationality.
Ultra-high performance concrete be it is a kind of with high intensity, high tensile, high tenacity, low porosity cement base composite wood
Material.Compared to conventional concrete, anti-carbonation, resisting chloride ion penetration intrusion, resistance to chemical attack have the raising of the order of magnitude.It is significant
It is characterized in superhigh intensity, toughness and durability, almost without freeze injury problem, and there is strain hardening behavior.
Therefore, both the above high performance material is combined by the present invention, can be learnt from other's strong points to offset one's weaknesses, and multiple material shearing is effectively evaded
The disadvantages of intensity is low, wearability and impact resistance are poor, gives full play to multiple material tension and ultra-high performance concrete compression strength is high
The advantages of, achieve the effect that " 1+1 > 2 ".
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose that a kind of prestressing force answers material-ultra-high performance concrete combination beam.The prestressing force answers material-very-high performance coagulation
Native combination beam is combined by that will answer material with ultra-high performance concrete, can effectively be evaded low multiple material shear strength, wearability and be resisted
The disadvantages of impact capacity is poor gives full play to multiple material tensile strength height and the high advantage of concrete crushing strength, forms top coagulation
Soil is pressurized, the combination beam of material tension is answered in lower part, to allow the combination beam in lifting beam stiffness of structural member, bearing capacity
On the basis of ability, effectively mitigate beam self weight, and obtains more preferably corrosion resistance and construction convenience.
According to an embodiment of the invention, it includes: very-high performance coagulation that the prestressing force, which answers material-ultra-high performance concrete combination beam,
Native edge of a wing panel, multiple material drawing and extruding section bar beam, the multiple material drawing and extruding section bar beam pass through shear connector and the very-high performance coagulation
Native edge of a wing panel connection；Prestressing combination part, the prestressing combination part are connected by adhesive layer and the multiple material drawing and extruding section bar beam
It connecing, the prestressing combination part includes: that multiple material hand pastes rectangular section tube, the first concrete, prestressing force hole and prestressed component,
First Concrete Filled is pasted in rectangular section tube in the multiple material hand, and the prestressing force is equipped in first concrete
Hole, the prestressed component are located in the prestressing force hole.
Prestressing force according to an embodiment of the present invention answers material-concrete combination beam, answers material drawing and extruding section bar beam by fiber reinforcement
Composite material pultrusion has outstanding tension and corrosion resistance.Ultra-high performance concrete edge of a wing panel is placed in multiple material and draws
Extrusion section bar back portion, formation top concrete compression, lower part answer the combination beam of material tension.Ultra-high performance concrete edge of a wing panel
It is connect between multiple material drawing and extruding section bar beam by shear connector, to enhance the anchoring property between interface.Prestressing combination part
It is connect by adhesive layer with multiple material drawing and extruding section bar beam, the first concrete therein not only can solve multiple material drawing and extruding section bar Liang Zhi
Easily occur the problem of partial pressing's destruction, more considerable tensile capacity can also being provided after crack in tension, make group at seat
The bending stiffness for closing beam body system greatly enhances.The prestressed component arranged in first concrete then can further promote combination beam
The rigidity and bearing capacity of system.Prestressing force proposed by the present invention is answered material-ultra-high performance concrete combination beam and can promoted as a result,
On the basis of beam rigidity, bearing capacity ability, effectively mitigate beam self weight, and obtains more preferably corrosion resistance and apply
Work convenience.
In addition, prestressing force according to the above embodiment of the present invention, which answers material-concrete combination beam, can also have following add
Technical characteristic:
In some embodiments of the invention, the section of the multiple material drawing and extruding section bar beam is rectangle, the multiple material pultruded
Material beam includes top cavity, central cavity and bottom cavity；The second concrete, the bottom chamber are filled in the top cavity
The prestressing combination part is equipped in body, the prestressing combination part is connected by the inner wall of the adhesive layer and the bottom cavity
It connects.
In some embodiments of the invention, first concrete is ultra-high performance concrete.
In some embodiments of the invention, second concrete is lightweight aggregate concrete.
In some embodiments of the invention, the section of the multiple material drawing and extruding section bar beam is I-shaped, the multiple material pultrusion
Profile beam includes top flange, web and lower flange, and the top flange passes through the shear connector and the very-high performance coagulation
Native edge of a wing panel connection, the lower flange is connected by the adhesive layer and the shear connector and the prestressing combination part
It connects.
In some embodiments of the invention, the shear connector include but is not limited to metal bolts, multiple material bolt and
Glue bolt Hybrid connections.
In some embodiments of the invention, the prestressed component includes presstressed reinforcing steel material or prestressing force plate, and
Anchorage compatible with the presstressed reinforcing steel material or the prestressing force plate.
In some embodiments of the invention, the prestressed component includes but is not limited to prestress wire and its anchor
Tool or carbon fiber answer material plate and its anchorage.
In some embodiments of the invention, the adhesive layer is epoxy glue layer or other structures glue-line.
In some embodiments of the invention, rib in length and breadth, the rib in length and breadth are equipped in the multiple material hand paste rectangular section tube
Including longitudinal rib and cross rib.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is to answer the structural representation of material-ultra-high performance concrete combination beam according to the prestressing force of one embodiment of the invention
Figure；
Fig. 2 is that material-ultra-high performance concrete combination beam assembling signal is answered according to the prestressing force of one embodiment of the invention
Figure；
Fig. 3 is to answer prestressing force group in material-ultra-high performance concrete combination beam according to the prestressing force of one embodiment of the invention
The structural schematic diagram of component；
Fig. 4 is to answer material-ultra-high performance concrete combination beam structure according to the prestressing force of another embodiment of the present invention to show
It is intended to.
Description of symbols:
1: multiple material drawing and extruding section bar beam；
1-1: top cavity；1-2: central cavity；1-3: bottom cavity；
1-4: top flange；1-5: web；1-6: lower flange；
2: ultra-high performance concrete edge of a wing panel；
3: shear connector；
4: the second concrete；
5: prestressing combination part；
5-1: multiple material hand pastes rectangular section tube；5-2: the first concrete；5-3: prestressing force hole；5-4: prestressed component；
5-5: longitudinal rib: 5-6: cross rib；
6: adhesive layer.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, the terms such as " installation ", " connected ", " connection ", " fixation "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
The interaction relationship of connection or two elements, unless otherwise restricted clearly.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In one aspect of the invention, the invention proposes a kind of prestressing force to answer material-ultra-high performance concrete combination beam.Root
According to the embodiment of the present invention, with reference to Fig. 1~4, it includes: multiple material pultruded which, which answers material-ultra-high performance concrete combination beam,
Material beam 1, ultra-high performance concrete edge of a wing panel 2, shear connector 3 and prestressing combination part 5.Wherein, multiple material drawing and extruding section bar beam 1
It is connect by shear connector 3 with ultra-high performance concrete edge of a wing panel 2；Prestressing combination part 5 is drawn by adhesive layer 6 and multiple material
Extrusion section bar beam 1 connects；Prestressing combination part 5 includes: multiple material hand paste rectangular section tube 5-1, the first concrete 5-2, prestress hole
Hole 5-3 and prestressed component 5-4, the first concrete 5-2 is filled in multiple material hand paste rectangular section tube 5-1, and the first concrete
Prestressing force hole 5-3 is equipped in 5-2, prestressed component 5-4 is located in prestressing force hole 5-3.
Further material-concrete combination beam is answered to prestressing force according to an embodiment of the present invention below with reference to Fig. 1~4 to carry out in detail
Thin description.
According to an embodiment of the invention, multiple material drawing and extruding section bar beam 1 passes through shear connector 3 and the ultra-high performance concrete edge of a wing
Panel 2 connects.In some embodiments, the hole for installing shear connector is reserved at the top of multiple material drawing and extruding section bar beam,
Shear connector may include multiple, and in multiple material drawing and extruding section bar beam and ultra-high performance concrete edge of a wing panel.
According to an embodiment of the invention, as illustrated in fig. 1 and 2, the section of multiple material drawing and extruding section bar beam 1 can be rectangle.Multiple material
Drawing and extruding section bar beam 1 includes top cavity 1-1, central cavity 1-2 and bottom cavity 1-3, and top cavity 1-1, central cavity 1-2
It is spaced apart from each other between bottom cavity 1-3.It is filled with the second concrete 4 in top cavity 1-1, is equipped in bottom cavity 1-3 pre-
Stress sub-assembly 5.Prestressing combination part 5 is connect by adhesive layer 6 with the inner wall of bottom cavity 1-3, i.e., prestressing combination part 5 and
The contact surface of multiple material drawing and extruding section bar beam 1 is connected by adhesive layer 6.
According to an embodiment of the invention, the second concrete 4 is preferably lightweight aggregate concrete.Thus, it is possible to mitigating as far as possible
Under the premise of self weight, enhances multiple material drawing and extruding section bar beam top girth to the anchoring property of shear connector, prevent multiple material pultruded
Anchoring occurs at the shear connector of material top girth or partial pressing destroys.
According to an embodiment of the invention, as shown in figure 4, the section of multiple material drawing and extruding section bar beam 1 may be I-shaped.Multiple material
Drawing and extruding section bar beam 1 includes top flange 1-4, web 1-5 and lower flange 1-6, and top flange 1-4 passes through shear connector 3 and superelevation
Energy concrete edge of a wing panel 2 connects, and lower flange 1-6 is connect by adhesive layer 6 and shear connector 3 with prestressing combination part 5.
According to an embodiment of the invention, shear connector 3 can include but is not limited to metal bolts, multiple material bolt and glue bolt
Hybrid connections.In addition, it is necessary to explanation, multiple 1 top girth of material drawing and extruding section bar beam and ultra-high performance concrete edge of a wing panel 2
Connection can also be using other anchorage technologies, such as scab, gluing, steel fibre glue sand Hybrid connections etc..
According to an embodiment of the invention, adhesive layer 6 can be formed by different types of binder, the specific type of binder
It is not particularly restricted.In some embodiments, adhesive layer 6 can be epoxy glue layer, i.e., will be pre- by epoxide-resin glue
Stress sub-assembly 5 is connect with multiple material drawing and extruding section bar beam 1.Epoxide-resin glue employed in the present invention can be using the commercially available of routine
Product.
According to an embodiment of the invention, when the section of multiple material drawing and extruding section bar beam 1 be it is I-shaped when, prestressing combination part 5 with
Multiple material drawing and extruding section bar beam 1 preferably uses epoxide-resin glue and glue bolt Hybrid connections.
According to an embodiment of the invention, prestressing combination part 5 includes: multiple material hand paste rectangular section tube 5-1, the first concrete
5-2, prestressing force hole 5-3 and prestressed component 5-4, the first concrete 5-2 are filled in multiple material hand paste rectangular section tube 5-1,
And first is equipped with prestressing force hole 5-3 in concrete 5-2, prestressed component 5-4 is located in prestressing force hole 5-3.Wherein, it answers in advance
Power hole 5-3 can be reserved again by being filled in preset before multiple material hand is pasted in rectangular section tube 5-1 in the first concrete 5-2
Material pipe is formed.
According to an embodiment of the invention, the first concrete 5-2 is ultra-high performance concrete (Ultra-high
Performance Concrete, abbreviation UHPC).According to an embodiment of the invention, prestressed component 5-4 includes presstressed reinforcing steel material
Or prestressing force plate, and anchorage compatible with presstressed reinforcing steel material or prestressing force plate.By being placed on multiple material using anchorage
Hand pastes presstressed reinforcing steel material or the progress tensioning of prestressing force plate in rectangular section tube reserving hole, can further promote combination beam
The rigidity and bearing capacity of system.Specific example according to the present invention, prestressed component may include prestress wire and its anchor
Tool or carbon fiber answer material plate and its anchorage.
According to an embodiment of the invention, rib in length and breadth is also set up in multiple material hand paste rectangular section tube 5-1 with reference to Fig. 3, it is described vertical
Cross rib includes longitudinal rib 5-5 and cross rib 5-6.Longitudinal rib 5-5 extends along the length direction of prestressing combination part 5, and cross rib 5-6 is along prestressing force
The width direction of sub-assembly 5 extends.By the way that rib in length and breadth is arranged, it is ensured that ultra-high performance concrete participates in tension, thus raising group
Close the overall mechanical properties of beam.
In summary, prestressing force of the invention is answered material-ultra-high performance concrete combination beam and be can have selected from following advantages
At least one of:
(1) in terms of mechanical property --- the present invention promotes the rigid of combination beam system by four kinds of technological means of integrated use
Degree, bearing capacity and deformability: 1. by enhancing multiple material drawing and extruding section bar and very-high performance with technological means such as shear connectors
Anchoring property between concrete slab, prevents interface from destroying；2. by being filled in multiple material drawing and extruding section bar beam apex cavity
Lightweight aggregate concrete enhances multiple material drawing and extruding section bar beam top girth to the anchor of shear connector under the premise of mitigating self weight as far as possible
Solidity energy prevents that anchoring occurs at the shear connector of multiple material drawing and extruding section bar top girth or partial pressing destroys；3. by pre-
The tensioning of stress rib material or plate further promotes the rigidity and bearing capacity of combination beam system；4. being filled in multiple material drawing and extruding section bar beam
The ultra-high performance concrete of bottom cavity not only can solve multiple material drawing and extruding section bar and easily occur partial pressing's destruction at support
Problem can also provide more considerable tensile capacity after crack in tension, so that combination beam system bending stiffness increases
By force；5. the shear behavior of combination beam can be improved in the concrete for being filled in multiple material drawing and extruding section bar beam bottom portion and upper cavity, guarantee
The performance of combination beam bend-carrying capacity.
(2) in terms of materials'use --- the mechanical property advantage for giving full play to every new material is maximized favourable factors and minimized unfavourable ones.
(3) in terms of durability --- the new materials such as composite material, ultra-high performance concrete have good anticorrosive property
Can, so that the combination beam system is applicable under all kinds of adverse circumstances.
(4) construction aspect --- composite material itself can be used as the template of casting concrete, remove most of branch mold process from,
It is convenient to construct.
Prestressing force of the invention answers material-ultra-high performance concrete combination beam will multiple material and two kinds of ultra-high performance concrete high property
Can construction material the shortcomings that being combined, two kinds of materials itself can be overcome, learn from other's strong points to offset one's weaknesses, formed top concrete compression, under
The combination beam of material tension is answered in portion, can be evaded multiple material rigidity and the disadvantages of shear strength is low, impact resistance is poor, be given full play to multiple material
With the respective material property advantage of ultra-high performance concrete, achieve the effect that " 1+1 > 2 ".Its advantage includes: (1) multiple material tension,
Concrete compression, can be effectively improved multiple material elasticity modulus it is low caused by bending stiffness deficiency problem；(2) multiple material can be used as coagulation
The permanent formwork that soil pours accelerates speed of application；(3) ultra-high performance concrete be high intensity, high-durability, high tenacity,
The concrete material of high solidity, being arranged in compressive region can overcome normal concrete to lack from great, easy to crack, durability is poor etc.
Point.
It is contemplated that above-mentioned mechanical property is excellent, the preferably novel pre-stressed composite material drawing and extruding of durability in erosion environment
Profile concrete combination beam system, has broad application prospects in the following offshore engineering structure.On the other hand, the novel compositions
Beam body, which ties up in science of bridge building, also very big application space.Due to winter splashes deicer salts etc., many traditional structure systems
There are the steel bars corrosion problems that freeze-thaw damage, Chloride Attack cause for the highway bridge of construction.And use the novel compositions beam body
System then can fundamentally solve the problems, such as this.Further, since multiple material and ultra-high performance concrete are all the very high materials of specific strength
Material, i.e. high-strength light compare conventional steel bar concrete bridge, and under identical span, the self weight of the novel compositions beam body system can
To be greatly lowered, and moulding seems more light and handy beautiful, changes the looks of conventional concrete component " thick, thick, stupid, again ".
The reduction of bridge weight additionally aids lifting, accelerates speed of application.Therefore, the novel compositions beam body tie up to medium and small span bridge or
The application aspect of overpass also has competitiveness, can be reduced and be handed over road with the transformation and installation of realization bridge in the short time
Logical interference.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of prestressing force answers material-ultra-high performance concrete combination beam characterized by comprising
Ultra-high performance concrete edge of a wing panel, multiple material drawing and extruding section bar beam, the multiple material drawing and extruding section bar beam by shear connector with
The connection of ultra-high performance concrete edge of a wing panel；
Prestressing combination part, the prestressing combination part is connect by adhesive layer with the material drawing and extruding section bar beam of answering, described pre- to answer
Power sub-assembly includes: multiple material hand paste rectangular section tube, the first concrete, prestressing force hole and prestressed component, and described first is mixed
Solidifying soil is filled in the multiple material hand paste rectangular section tube, and the prestressing force hole is equipped in first concrete, described
Prestressed component is located in the prestressing force hole.
2. prestressing force according to claim 1 answers material-ultra-high performance concrete combination beam, which is characterized in that the multiple material
The section of drawing and extruding section bar beam is rectangle, and the multiple material drawing and extruding section bar beam includes top cavity, central cavity and bottom cavity；It is described
It is filled with the second concrete in top cavity, is equipped with the prestressing combination part, the prestressing combination in the bottom cavity
Part is connect by the adhesive layer with the inner wall of the bottom cavity.
3. prestressing force according to claim 1 answers material-ultra-high performance concrete combination beam, which is characterized in that described first
Concrete is ultra-high performance concrete.
4. prestressing force according to claim 2 answers material-ultra-high performance concrete combination beam, which is characterized in that described second
Concrete is lightweight aggregate concrete.
5. prestressing force according to claim 1 answers material-ultra-high performance concrete combination beam, which is characterized in that the multiple material
The section of drawing and extruding section bar beam be it is I-shaped, the multiple material drawing and extruding section bar beam includes top flange, web and lower flange, the top flange
Connect by the shear connector with ultra-high performance concrete edge of a wing panel, the lower flange by the adhesive layer and
The shear connector is connect with the prestressing combination part.
6. according to claim 1, prestressing force described in any one of 2 and 5 answers material-ultra-high performance concrete combination beam, feature
It is, the shear connector includes but is not limited to metallic steel bolt, multiple material bolt, glue bolt Hybrid connections.
7. according to claim 1, prestressing force described in any one of 2 and 5 answers material-ultra-high performance concrete combination beam, feature
Be, the prestressed component includes presstressed reinforcing steel material or prestressing force plate, and with the presstressed reinforcing steel material or described pre- answer
The compatible anchorage of power plate.
8. prestressing force according to claim 7 answers material-ultra-high performance concrete combination beam, which is characterized in that described pre- to answer
Power component includes but is not limited to that prestress wire and its anchorage or carbon fiber answer material plate and its anchorage.
9. according to claim 1, prestressing force described in any one of 2 and 5 answers material-ultra-high performance concrete combination beam, feature
It is, the adhesive layer is epoxy glue layer.
10. according to claim 1, prestressing force described in any one of 2 and 5 answers material-ultra-high performance concrete combination beam, feature
It is, is equipped with rib in length and breadth in the multiple material hand paste rectangular section tube, the rib in length and breadth includes longitudinal rib and cross rib.
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| CN114991007A (en) * | 2022-05-19 | 2022-09-02 | 同济大学 | High-performance composite material bridge deck and manufacturing method thereof |
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