CN107313552A - A kind of FRP plate-concrete combination beam - Google Patents
A kind of FRP plate-concrete combination beam Download PDFInfo
- Publication number
- CN107313552A CN107313552A CN201610260911.7A CN201610260911A CN107313552A CN 107313552 A CN107313552 A CN 107313552A CN 201610260911 A CN201610260911 A CN 201610260911A CN 107313552 A CN107313552 A CN 107313552A
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- China
- Prior art keywords
- frp
- concrete
- frp plate
- plate
- combination beam
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- 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.)
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- 239000004567 concrete Substances 0.000 title claims abstract description 54
- 210000003205 muscle Anatomy 0.000 claims abstract description 21
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 9
- 239000004574 high-performance concrete Substances 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 239000011376 self-consolidating concrete Substances 0.000 claims description 2
- 239000011800 void material Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000006467 substitution reaction Methods 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 present invention relates to a kind of FRP plate concrete combination beam, perforate FRP plate, longitudinal direction FRP muscle, applied to the beams of concrete under intensive corrosive environment, belong to the fields such as building, bridge, harbour built in the beams of concrete.The FRP plate concrete combination beam, is fixed into FRP plate FRP muscles and bones framves through FRP plate hole or along FRP plate medial surface colligation by longitudinal FRP muscle, is positioned in beams of concrete mould.The beam is acted on FRP plate substitution stirrup, the substitution longitudinal reinforcement effect of FRP muscle, can not only be avoided the corrosion of reinforcing bar, can also be solved the problem of FRP muscle is difficult to bend to stirrup.
Description
Technical field
The present invention relates to a kind of FRP plate-concrete combination beam, applied to the beams of concrete under intensive corrosive environment, belong to the fields such as building, bridge, harbour.
Background technology
In Practical Project, steel bar corrosion not only causes the degradation of infrastructure durability, while causing huge economic loss.Especially in severe cold area and coastal area, freeze thawing and wet environment influence fairly obvious to reinforced concrete structure.Deterioration and damage of the intensive corrosive environment effect to concrete structure will cause the bonding failure between reinforcing bar and concrete, and finally trigger the damage and destruction of structure.The appearance of fibre reinforced composites in recent years, significantly improves this situation, fibre reinforced composites have lightweight, it is high-strength, corrosion-resistant many advantages, such as；The particularly appearance of fiber bar, can be widely used in the numerous areas of civil engineering at present with the Reinforcement in replacing structure with anticorrosion.
In reinforced concrete structure, stirrup plays a role primarily as shear reinforcement, limits inside concrete crack progressing, improves adhesion strength.However, because fiber bar toughness is bad, not resistant to bending, engineering circles never have larger breakthrough in terms of the manufacture craft of FRP stirrups.This defect causes significant limitation to the engineer applied of fiber bar.How fibrous material is applied more broadly in reinforced concrete structure, the focus studied both at home and abroad is become to improve its mechanical property.
The content of the invention
To overcome the shortcomings of that prior art is present, a kind of FRP plate-concrete combination beam is now provided.Purpose is to substitute stirrup using perforate fiberboard, to overcome fiber bar characteristic not resistant to bending and the not corrosion resistant defect of regular reinforcement, improves the shear behavior and durability of beams of concrete.
To achieve the above object, the present invention uses following technical scheme：
FRP plate-the concrete combination beam, FRP plate and longitudinal direction FRP muscles and bones framves comprising beams of concrete and in being cast in.
In the FRP plate-concrete combination beam, FRP plate spacing can refer to dependent Concrete code for structural design and stirrup design requirement set, it is considered to the factor such as beam shear span section, seismic behavior, load form, depth of section of beam.
FRP plate-the concrete combination beam is fixed by longitudinal FRP muscle through FRP plate hole or along FRP plate medial surface colligation first in manufacturing process；Wherein, the void shape of FRP plate can be square, rectangle or circle, and number is determined with big I according to the equivalent stiffness principle of stirrup；FRP plate-FRP muscles and bones framves are positioned over beams of concrete mould appropriate location again, concrete is finally poured into a mould, the concrete includes normal concrete, regeneration concrete, self-compacting concrete, fiber concrete, high performance concrete.
FRP plate-the concrete combination beam, the type of beam includes shallow beam, short beam and deep beam.
Compared with prior art, beneficial effect of the present invention：
The present invention relates to a kind of FRP plate-concrete combination beam, perforate FRP plate, longitudinal direction FRP muscle built in the beams of concrete, wherein longitudinal direction FRP muscle is fixed through FRP plate hole or along FRP plate medial surface colligation, applied to the beams of concrete under intensive corrosive environment, belongs to the fields such as building, bridge, harbour.
The present invention substitutes stirrup with perforate FRP plate, effectively overcomes the problem of fiber bar is not resistant to bending to be fabricated to stirrup；The hole of FRP plate effectively increases the mobility between concrete, enhances the bonding between concrete and FRP plate；Meanwhile, perforate fiberboard substitutes stirrup, can effectively solve the not corrosion resistant defect of intensive corrosion area reinforcing bar, improve the shear behavior and durability of beams of concrete.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is FRP plate-FRP muscles and bones frame stereograms.
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Fig. 5 is Fig. 4 B-B sectional views.
In figure：1-FRP plates, 2- longitudinal directions FRP muscle, 3- concrete, 4-FRP laths
Specific implementation method
Embodiment 1
FRP plate-the concrete combination beam, includes FRP plate 1, longitudinal FRP muscle 2, concrete 3.
The FRP plate-concrete combination beam making step：Longitudinal FRP muscle 2 is passed through to the corresponding hole of FRP plate 1 first, then FRP plate 1 is fixed with the colligation of longitudinal direction FRP muscle 2, the appropriate location of beams of concrete mould is positioned over, finally pours into a mould concrete 3.
Embodiment 2
FRP plate-the concrete combination beam, includes FRP plate 1, longitudinal FRP muscle 2, concrete 3, FRP plate bar 4.
The FRP plate-concrete combination beam making step：The inner side colligation of FRP plate 1 that longitudinal FRP muscle 2 is placed along parallel girder axis is fixed first；FRP plate 1 is connected with FRP plate bar 4 again to form the appropriate location that closing skeleton is positioned over beams of concrete mould, concrete 3 is finally poured into a mould.
Claims (5)
1. a kind of FRP plate-concrete combination beam, it is characterised in that：
FRP plate-the concrete combination beam, including concrete and the FRP plate-FRP muscles and bones framves for being cast in inside：FRP plate-FRP muscles and bones the frame is made up of perforate FRP plate, longitudinal direction FRP muscle；The perforate FRP plate hole number is determined with big I according to the equivalent stiffness principle of stirrup；The big I of FRP plate spacing is determined according to factors such as beam shear span section, different anti-seismic grade, load form, the depth of sections of beam.
2. FRP plate-concrete combination beam according to claim 1, perforate FRP plate can be arranged parallel or perpendicular to beam axis, longitudinal FRP muscle is fixed through FRP plate hole or along FRP plate medial surface colligation.
3. FRP plate-concrete combination beam according to claim 1, the void shape of perforate FRP plate is square, rectangle or circle.
4. FRP plate-concrete combination beam according to claim 1, concrete type is including but not limited to Types Below：Normal concrete, regeneration concrete, self-compacting concrete, fiber concrete, high performance concrete.
5. FRP plate-concrete combination beam according to claim 1, the type of beam includes shallow beam, short beam and deep beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260911.7A CN107313552A (en) | 2016-04-26 | 2016-04-26 | A kind of FRP plate-concrete combination beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260911.7A CN107313552A (en) | 2016-04-26 | 2016-04-26 | A kind of FRP plate-concrete combination beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313552A true CN107313552A (en) | 2017-11-03 |
Family
ID=60184325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260911.7A Pending CN107313552A (en) | 2016-04-26 | 2016-04-26 | A kind of FRP plate-concrete combination beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313552A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360751A (en) * | 2018-04-19 | 2018-08-03 | 中冶建筑研究总院有限公司 | Multiple material grid shearing resistance stirrup, beams of concrete and preparation process comprising it |
| CN108532835A (en) * | 2018-03-21 | 2018-09-14 | 河海大学 | A kind of pre-tension prestressed concrete beam longitudinal cracking restraining device and its construction method |
| CN110158859A (en) * | 2019-06-11 | 2019-08-23 | 廖永红 | A kind of profile screw rod combined reinforced bar engineering construction process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563622A (en) * | 2004-03-15 | 2005-01-12 | 河海大学 | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced |
| CN103243864A (en) * | 2013-05-28 | 2013-08-14 | 南京工业大学 | Composite material stirrup |
| CN205558037U (en) * | 2016-04-26 | 2016-09-07 | 辽宁工业大学 | FRP board - concrete combination beam |
-
2016
- 2016-04-26 CN CN201610260911.7A patent/CN107313552A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563622A (en) * | 2004-03-15 | 2005-01-12 | 河海大学 | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced |
| CN103243864A (en) * | 2013-05-28 | 2013-08-14 | 南京工业大学 | Composite material stirrup |
| CN205558037U (en) * | 2016-04-26 | 2016-09-07 | 辽宁工业大学 | FRP board - concrete combination beam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532835A (en) * | 2018-03-21 | 2018-09-14 | 河海大学 | A kind of pre-tension prestressed concrete beam longitudinal cracking restraining device and its construction method |
| CN108360751A (en) * | 2018-04-19 | 2018-08-03 | 中冶建筑研究总院有限公司 | Multiple material grid shearing resistance stirrup, beams of concrete and preparation process comprising it |
| CN110158859A (en) * | 2019-06-11 | 2019-08-23 | 廖永红 | A kind of profile screw rod combined reinforced bar engineering construction process |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Huaxin Inventor after: Bai Yajia Inventor after: Yang Jianwei Inventor after: Wang Xuezhi Inventor after: Kong Xiangqing Inventor after: Han Dingjie Inventor after: Li Jinsong Inventor after: Liu Genjin Inventor before: Liu Huaxin Inventor before: Yang Jianwei Inventor before: Wang Xuezhi Inventor before: Kong Xiangqing Inventor before: Han Dingjie Inventor before: Li Jinsong Inventor before: Liu Genjin |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |