CN110374260A - Building element is covered with the closed type stirrup of FRP composite material - Google Patents
Building element is covered with the closed type stirrup of FRP composite material Download PDFInfo
- Publication number
- CN110374260A CN110374260A CN201910525460.9A CN201910525460A CN110374260A CN 110374260 A CN110374260 A CN 110374260A CN 201910525460 A CN201910525460 A CN 201910525460A CN 110374260 A CN110374260 A CN 110374260A
- Authority
- CN
- China
- Prior art keywords
- square steel
- composite material
- frp composite
- rectangular
- wall
- 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.)
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
Abstract
Building element is covered with the closed type stirrup of FRP composite material, including square steel, the both sides external of the square steel is respectively welded the both ends of a rectangular reinforcing bar, the inside of the square steel, which is run through, a rectangular FRP composite material, adhesive layer is perfused in gap between the inner wall of the square steel and the outer wall of rectangular FRP composite material, the top of the square steel hammers into one through square steel outer wall, the rivet of adhesive layer and rectangular FRP composite material top surface.The present invention is playing the role of shearing resistance stirrup in such a way that square steel outer wall welds rectangular reinforcing bar；It is squeezed at the top of square steel using rivet, plays the role of the strong bond of FRP composite material and square steel；The problem of FRP material is higher than regular reinforcement tensile strength, good corrosion resistance, avoids traditional tensional element steel bar corrosion, improves the durability of beam body.
Description
Technical field
The present invention relates to a kind of building element, especially a kind of bearing capacity and bending strength are high, and full component rotproofness is good
With FRP composite material closed type stirrup cover building element.
Background technique
Concrete is modern architecture production industry frequency of use highest, and usage amount maximum, widest building materials have raw material
The advantages that abundant, intensity height, rigidity are greatly, economy, globality and plasticity are good.But it is caused due to material feature itself
There is certain weakness for it, such as: dead load is big, concrete tensile strength is low, contraction fissure occurs in course of hardening
Deng, it is further noted that concrete structure during construction and use can because ambient air temperature variation and foundation settlement and
Generate variety classes and different degrees of crack.In later period use process, with the variation of the load and environment of application, air
In water, the harmful substances such as carbon dioxide gradually invade concrete, cause the corrosion of inside concrete reinforcing bar, lead to concrete knot
The reliability of structure constantly decays, and constrains the popularity of concrete application.
The corrosion of Reinforcing Steel Bar In Reinforced Concrete Structure, deterioration problem bring huge economy to engineering construction field and damage
It loses, it has also become one of the outstanding problem of world today's structural engineering field research and development.Therefore, it is fundamentally reduced or avoided
The corrosion of reinforcing bar, deterioration problem have become letter crucial science and technology problem to be solved in civil engineering structure.
FRP, i.e. Fiber Reinforced Polymer/Plastic, fibre reinforced composites have very strong hold
Loading capability, bending strength and corrosion resistance are applied not yet in building element field.
Summary of the invention
To solve the above problems, full component rotproofness is good the present invention provides a kind of bearing capacity and bending strength are high
Building element is covered with the closed type stirrup of FRP composite material.
Realize that the closed type stirrup with FRP composite material of the object of the invention covers building element, including square steel, the side
The both sides external of steel is respectively welded the both ends of a rectangular reinforcing bar, and the inside of the square steel, which is run through, has a rectangular FRP compound
Profile is perfused with adhesive layer in the gap between the inner wall of the square steel and the outer wall of rectangular FRP composite material, the square steel
Top hammers into one through square steel outer wall, the rivet of adhesive layer and rectangular FRP composite material top surface.
Further, the cross section of the square steel is rectangle, and the cross section of the FRP composite material is also rectangle；
The square steel and FRP composite material are hollow structure；
The square steel using discontinuous or long through type any one；
The discontinuous: being cut fashioned iron according to constant spacing using abrasive cutoff saw, welds rectangular reinforcing bar in centre, by type
Steel is laid on FRP composite material according to constant spacing；
The long through type: to fashioned iron without cutting operation, molding rectangular reinforcing bar will directly be bent according to constant spacing
It is welded on fashioned iron；
After adhesive layer hardening, rivet square steel upper vertical is squeezed into, adhesive layer is penetrated and connects square steel and FRP is compound
Material；
The FRP composite material can be with adaptation to local conditions using CFRP (carbon fiber) pipe, GFRP (glass fibre) pipe, BFRP
(basalt fibre) pipe or AFRP (aramid fiber) pipe in any one.
The present invention in such a way that square steel outer wall welds rectangular reinforcing bar, rectangular reinforcing bar can straight up, tiltedly upper 45 ° of welderings
It connects, plays the role of shearing resistance stirrup；It is squeezed at the top of square steel using rivet, plays the strong bond of FRP composite material and square steel
Effect, meanwhile, the exposed head of a nail increases the bonding force between component and concrete；Meanwhile it being replaced using FRP composite material
Traditional tension reinforcement, FRP material is higher than regular reinforcement tensile strength, good corrosion resistance, improve building bearing capacity and
Bending strength；The problem of full component rotproofness is good, avoids traditional tensional element steel bar corrosion, improves the durability of beam body,
Reduce the expense of maintenance in structure use process, maintenance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this patent
Fig. 2 is the discontinuous square steel of this patent, the rectangular vertically arranged schematic diagram of reinforcing bar
Fig. 3 is the schematic diagram of the discontinuous square steel of this patent, rectangular reinforcing bar mixed-arrangement
Fig. 4 is the schematic diagram of the long through type square steel of this patent, rectangular reinforcing bar mixed-arrangement
Fig. 5 is the long through type square steel of this patent, the rectangular vertically arranged schematic diagram of reinforcing bar
Specific embodiment
As shown in Figure 1, the closed type stirrup of the invention with FRP composite material covers building element, including square steel 3, institute
The both sides external for stating square steel 3 is respectively welded the both ends of a rectangular reinforcing bar 4, the inside of the square steel 3 through have one it is rectangular
FRP composite material 2 is perfused with adhesive layer in the gap between the inner wall of the square steel 3 and the outer wall of rectangular FRP composite material 2
1, the top of the square steel 3 hammers into one through 3 outer wall of square steel, the rivet 5 of adhesive layer 1 and rectangular 2 top surface of FRP composite material.
Further, the cross section of the square steel is rectangle, and the cross section of the FRP composite material is also rectangle；
The square steel and FRP composite material are hollow structure；
As Figure 2-Figure 5, the square steel using discontinuous or long through type any one；
The discontinuous: being cut fashioned iron according to constant spacing using abrasive cutoff saw, welds rectangular reinforcing bar in centre, by type
Steel is laid on FRP composite material according to constant spacing；
The long through type: to fashioned iron without cutting operation, molding rectangular reinforcing bar will directly be bent according to constant spacing
It is welded on fashioned iron；
After adhesive layer hardening, rivet square steel upper vertical is squeezed into, adhesive layer is penetrated and connects square steel and FRP is compound
Material；
The FRP composite material can be with adaptation to local conditions using any one in CFRP pipe, GFRP pipe or BFRP pipe.
The present invention is by the way that in such a way that square steel outer wall welds rectangular reinforcing bar, as Figure 2-Figure 5, rectangular reinforcing bar can be vertical
Upwards, tiltedly upper 45 ° of welding, play the role of shearing resistance stirrup；It is squeezed at the top of square steel using rivet, plays FRP composite material and side
The effect of the strong bond of steel；Meanwhile traditional tension reinforcement is replaced using FRP composite material, FRP material is more anti-than regular reinforcement
Tensile strength is high, and good corrosion resistance improves the bearing capacity and bending strength of building；Full component rotproofness is good, avoids tradition
The problem of tensional element steel bar corrosion, improves the durability of beam body, reduces the expense of maintenance in structure use process, maintenance
With.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to the technology of the present invention side
The various changes and improvements that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (5)
1. the closed type stirrup with FRP composite material covers building element, which is characterized in that including square steel, outside the square steel
Portion two sides are respectively welded the both ends of a rectangular reinforcing bar, and the inside of the square steel, which is run through, a rectangular FRP composite material, institute
It states and is perfused with adhesive layer in the gap between the inner wall of square steel and the outer wall of rectangular FRP composite material, the top nail of the square steel
Enter one through square steel outer wall, the rivet of adhesive layer and rectangular FRP composite material top surface.
2. the closed type stirrup according to claim 1 with FRP composite material covers building element, which is characterized in that institute
The cross section for stating square steel is rectangle, and the cross section of the FRP composite material is also rectangle.
3. the closed type stirrup according to claim 1 with FRP composite material covers building element, which is characterized in that institute
Stating square steel and FRP composite material is hollow structure.
4. the closed type stirrup according to claim 1 with FRP composite material covers building element, which is characterized in that institute
State square steel using discontinuous or long through type any one.
5. the FRP composite material can be with adaptation to local conditions using any one in CFRP pipe, GFRP pipe, BFRP pipe or AFRP pipe
Kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525460.9A CN110374260A (en) | 2019-06-18 | 2019-06-18 | Building element is covered with the closed type stirrup of FRP composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525460.9A CN110374260A (en) | 2019-06-18 | 2019-06-18 | Building element is covered with the closed type stirrup of FRP composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110374260A true CN110374260A (en) | 2019-10-25 |
Family
ID=68250399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910525460.9A Pending CN110374260A (en) | 2019-06-18 | 2019-06-18 | Building element is covered with the closed type stirrup of FRP composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374260A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2506006A1 (en) * | 2002-11-13 | 2004-05-27 | The University Of Southern Queensland | A hybrid structural module |
| CN1587575A (en) * | 2004-06-30 | 2005-03-02 | 清华大学 | Steel-concrete folding plate combined beam |
| CN201095829Y (en) * | 2007-09-26 | 2008-08-06 | 胡洋 | Shearing-resistant connecting component |
| CN206328952U (en) * | 2016-12-31 | 2017-07-14 | 河北工程大学 | Mix shear connections structure |
| CN107747379A (en) * | 2017-12-14 | 2018-03-02 | 沈阳建筑大学 | The air entrained concrete shear wall of built-in FRP composite material tubes |
| CN207079815U (en) * | 2017-06-08 | 2018-03-09 | 南京林业大学 | A kind of FRP steel clamps heart pipe |
-
2019
- 2019-06-18 CN CN201910525460.9A patent/CN110374260A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2506006A1 (en) * | 2002-11-13 | 2004-05-27 | The University Of Southern Queensland | A hybrid structural module |
| CN1587575A (en) * | 2004-06-30 | 2005-03-02 | 清华大学 | Steel-concrete folding plate combined beam |
| CN201095829Y (en) * | 2007-09-26 | 2008-08-06 | 胡洋 | Shearing-resistant connecting component |
| CN206328952U (en) * | 2016-12-31 | 2017-07-14 | 河北工程大学 | Mix shear connections structure |
| CN207079815U (en) * | 2017-06-08 | 2018-03-09 | 南京林业大学 | A kind of FRP steel clamps heart pipe |
| CN107747379A (en) * | 2017-12-14 | 2018-03-02 | 沈阳建筑大学 | The air entrained concrete shear wall of built-in FRP composite material tubes |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20191025 |