CN105201143A - Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method - Google Patents
Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method Download PDFInfo
- Publication number
- CN105201143A CN105201143A CN201510665147.7A CN201510665147A CN105201143A CN 105201143 A CN105201143 A CN 105201143A CN 201510665147 A CN201510665147 A CN 201510665147A CN 105201143 A CN105201143 A CN 105201143A
- Authority
- CN
- China
- Prior art keywords
- steel tube
- wall steel
- thin
- section bar
- frp
- 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
- Rod-Shaped Construction Members (AREA)
Abstract
The invention aims to provide a carbon fiber thin-wall steel tube concrete composite column with an internal FRP sectional material and a method. The carbon fiber thin-wall steel tube concrete composite column comprises the FRP sectional material, a thin-wall steel tube, an outer protection layer and concrete, wherein the FRP sectional material is arranged at the center of the thin-wall steel tube; the space between the FRP sectional material and the thin-wall steel tube is filled with concrete; the thin-wall steel tube is covered by the outer protection layer in a winding manner; the outer protection layer is carbon fiber reinforced plastic; the cross section of the FRP sectional material is crisscross, I-shaped, T-shaped, circular or square; the cross section of the thin-wall steel tube is circular or polygonal; the ratio of the cross-sectional area of the internal FRP sectional material to the integral cross-sectional area of the composite column is not greater than 15%. The manufacturing method of the composite column comprises the following specific steps: 1, putting the FRP sectional material into the steel tube, and fixing the FRP sectional material at the center of the steel tube; 2, covering the outer layer of the steel tube with the carbon fiber reinforced material layer; 3, pouring concrete inside the steel tube; 4, performing periodical maintenance.
Description
Technical field
The invention belongs to technical field of civil engineering, particularly relate to a kind of carbon fiber thin wall steel tube concrete coupled column and method of built-in FRP section bar.
Background technology
The same with the every other industry in national economy field, since reform and opening-up, China's building trade experienced by the process of a high speed development.Along with the development of China's urbanization, capital investment is in the large-scaled construction period, makes civil engineering industry be in the state continuing expansion all the time.Thin wall steel tube concrete (Concrete-FilledSteelTube is reduced to CFST) is by thin-wall boards, light gauge cold-formed steel shape (comprising thin-wall steel tube) Combined concrete cooperative a kind of new structure.It is made up of concreting in steel pipe, and it takes full advantage of confined concrete bearing capacity under three dimension stress condition and significantly improves the feature that ductility is greatly improved.This class A of geometric unitA major part holds Compression, has higher bearing capacity, good anti-seismic performance, can effectively saving steel and template and the outstanding advantages such as site operation is convenient and swift.It can adapt to modern project structure to large across towering, heavily loaded development and the needs bearing mal-condition, meet the industrial requirement of Modern Construction Technology, be conducive to the optimization and upgrading advancing Modern industrial, therefore can be widely used in Urban Bridge, longspan structure, high level or super highrise building.
Although encased structures advantage is a lot of, more next than reinforced concrete structure is slim and graceful, and steel work is heavier than slightly aobvious, along with the deadweight of the increase structure of floor height also increases thereupon.Any building structure is all made up of various material, thus structure development and break through and be unable to do without the development of material and change., because specific strength is high, specific modulus is large, and material property has designability, corrosion resistance and excellent in durability, and coefficient of thermal expansion is close with concrete, becomes a kind of new structural material of field of civil engineering gradually for fibre reinforced composites (abbreviation FRP).The form being applied to the FRP goods in civil engineering is varied, mainly contains following several: FRP sheet material, FRP bar, FRP section bar and FRP protruding end etc.
Summary of the invention
The defect that the present invention exists to overcome prior art, the object of this invention is to provide a kind of carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar.
The technology used in the present invention solution is a kind of carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar, comprise FRP section bar, thin-wall steel tube, outer jacket and concrete composition, described FRP section bar is arranged on the center of thin-wall steel tube, thus alleviate the weight of pillar, reduce column dimensions.
Be filled with concrete between described FRP section bar and thin-wall steel tube, outside described thin-wall steel tube, be surrounded with outer jacket.Described outer jacket is carbon fibre reinforced plastic layer.The advantage that three dimension stress concrete crushing strength is high can be given full play to, the flexing of steel pipe can be avoided, and bearing capacity is higher, durability is better simultaneously.
Described FRP section bar cross section is that cross is I-shaped T-shaped circular or square.
Described thin-wall steel tube cross section is circular or polygon, takes full advantage of thin-wall steel tube confined concrete bearing capacity under three dimension stress condition and significantly improves the feature that ductility is greatly improved.This class A of geometric unitA major part holds Compression, has higher bearing capacity, good anti-seismic performance, can effectively saving steel and template and also site operation convenient and swift etc.
Described built-in FRP section bar section area and the ratio of coupled column global sections area are not more than 15%.
A preparation method for the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar, concrete steps are as follows:
Step 1: FRP section bar is put into steel pipe, is fixed on center;
Step 2: at steel pipe outer layer covers carbon fibre reinforcement layer;
Step 3: by concreting in steel pipe;
Step 4: periodic maintenance.
Compared with prior art, the beneficial effect that the present invention has is:
1. make full use of the characteristic of fibrous material, improve the drawbacks such as the concrete fragility of common steel tube, tension, shearing resistance and flexural strength are lower;
2. the concrete in steel pipe is in three-phase pressured state, improves the ultimate bearing capacity of pillar;
3. the FRP section bar being positioned at core place alleviates concrete column weight, improves supporting capacity and the ductility of steel core concrete column;
4., because the existence of FRP section bar, steel pipe improves the ductility of post, improve the ultimate bearing capacity of post, be conducive to earthquake zone seismic design;
5. the carbon fibre reinforced plastic of steel pipe outside can give full play to the high advantage of three dimension stress concrete crushing strength, can avoid the flexing of steel pipe, and bearing capacity is higher, durability is better simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure:
1, FRP section bar, 2, concrete, 3, thin-wall steel tube, 4, outer jacket.
Detailed description of the invention
As shown in Figure 1, a kind of carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar, comprise FRP section bar, thin-wall steel tube, outer jacket and concrete composition, described FRP section bar is arranged on the center of thin-wall steel tube, be filled with concrete between described FRP section bar and thin-wall steel tube, outside described thin-wall steel tube, be surrounded with outer jacket.Described outer jacket is carbon fibre reinforced plastic layer.Described built-in FRP section bar section area and the ratio of coupled column global sections area are not more than 15%.
Embodiment 1:
Described FRP section bar cross section is T-shaped, and described thin-wall steel tube cross section is circular.
Embodiment 2:
Described FRP section bar cross section is I-shaped, described thin-wall steel tube cross section is circular.
Embodiment 3:
Described FRP section bar cross section is square, described thin-wall steel tube cross section is circular.
Embodiment 4:
Described FRP section bar cross section is circular, and described thin-wall steel tube cross section is circular.
Embodiment 5:
Described FRP section bar cross section is cross, and described thin-wall steel tube cross section is circular.
Embodiment 6:
Described FRP section bar cross section is T-shaped, and described thin-wall steel tube cross section is quadrangle.
Embodiment 7:
Described FRP section bar cross section is I-shaped, described thin-wall steel tube cross section is quadrangle.
Embodiment 8:
Described FRP section bar cross section is square, described thin-wall steel tube cross section is quadrangle.
Embodiment 9:
Described FRP section bar cross section is circular, and described thin-wall steel tube cross section is quadrangle.
Embodiment 10:
Described FRP section bar cross section is cross, and described thin-wall steel tube cross section is quadrangle.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. the carbon fiber thin wall steel tube concrete coupled column of a built-in FRP section bar, it is characterized in that: comprise FRP section bar, thin-wall steel tube, outer jacket and concrete composition, described FRP section bar is arranged on the center of thin-wall steel tube, be filled with concrete between described FRP section bar and thin-wall steel tube, outside described thin-wall steel tube, be surrounded with outer jacket.
2. the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar according to claim 1, is characterized in that: described outer jacket is carbon fibre reinforced plastic layer.
3. the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar according to claim 1, is characterized in that: described FRP section bar cross section is that cross is I-shaped T-shaped circular or square.
4. the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar according to claim 1, is characterized in that: described thin-wall steel tube cross section is circular or polygon.
5. the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar according to claim 1, is characterized in that: described built-in FRP section bar section area and the ratio of coupled column global sections area are not more than 15%.
6. a preparation method for the carbon fiber thin wall steel tube concrete coupled column of built-in FRP section bar, is characterized in that: concrete steps are as follows:
Step 1: FRP section bar is put into steel pipe, is fixed on center;
Step 2: at steel pipe outer layer covers carbon fibre reinforcement layer;
Step 3: by concreting in steel pipe;
Step 4: periodic maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665147.7A CN105201143A (en) | 2015-10-16 | 2015-10-16 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665147.7A CN105201143A (en) | 2015-10-16 | 2015-10-16 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105201143A true CN105201143A (en) | 2015-12-30 |
Family
ID=54949070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665147.7A Pending CN105201143A (en) | 2015-10-16 | 2015-10-16 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201143A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013615A (en) * | 2016-06-21 | 2016-10-12 | 大连理工大学 | Self-stressing-concrete-FRP-pipe-constrained combination column |
| CN106958323A (en) * | 2017-05-14 | 2017-07-18 | 北京工业大学 | The light steel pipe timber with small diameter combination load-bearing pillar and the practice of a kind of band point chamber steel plate |
| CN106978884A (en) * | 2017-05-14 | 2017-07-25 | 北京工业大学 | One kind can assemble light steel tube constraint timber with small diameter combination load-bearing pillar and the practice |
| CN107382179A (en) * | 2017-06-12 | 2017-11-24 | 镇江宇神动力能源有限公司 | A kind of road high stability concrete |
| CN107514096A (en) * | 2017-09-21 | 2017-12-26 | 华侨大学 | A kind of steel epoxy resin mortar multiple tube concrete combination column |
| RU179751U1 (en) * | 2017-07-26 | 2018-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный архитектурно-строительный университет" КГАСУ | STABILITY CONCRETE STAND |
| CN108166682A (en) * | 2018-02-08 | 2018-06-15 | 沈阳建筑大学 | Built-in prefabricated core column composite column structure and preparation method thereof |
| CN109723139A (en) * | 2017-10-30 | 2019-05-07 | 上海拓观建筑规划设计有限公司 | A kind of improved building structure |
| CN110056130A (en) * | 2019-04-16 | 2019-07-26 | 武汉大学 | FRP pipe profile sea sand fast hardening concrete coupled column |
| CN113073790A (en) * | 2021-04-07 | 2021-07-06 | 浙江大学 | Mechanical anchoring method for FRP (fiber reinforced Plastic) section bar in FRP reinforced concrete composite structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007037951A1 (en) * | 2007-08-11 | 2009-02-19 | Nguyen, Viet Tue, Prof. Dr.-Ing. habil. | Concrete composite column for multi-storey building construction, has support core comprising high performance concrete, which is partly or completely surrounded by coating layer from normal-fixed concrete |
| CN101736860A (en) * | 2009-12-16 | 2010-06-16 | 沈阳建筑大学 | Circular cross-section steel-concrete-FRP solid composite column |
| CN101974958A (en) * | 2010-11-24 | 2011-02-16 | 沈阳建筑大学 | Steel pipe concrete column of I-shaped FRP section |
| CN102108760A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fibre reinforced plastic-steel composite tube restrained reinforcement high-strength concrete column |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN202117226U (en) * | 2010-11-24 | 2012-01-18 | 沈阳建筑大学 | I-shaped FRP (fiber reinforced plastic) section-steel pipe-concrete column combination |
| CN104652703A (en) * | 2013-11-25 | 2015-05-27 | 大连惟康科技有限公司 | Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column |
-
2015
- 2015-10-16 CN CN201510665147.7A patent/CN105201143A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007037951A1 (en) * | 2007-08-11 | 2009-02-19 | Nguyen, Viet Tue, Prof. Dr.-Ing. habil. | Concrete composite column for multi-storey building construction, has support core comprising high performance concrete, which is partly or completely surrounded by coating layer from normal-fixed concrete |
| CN101736860A (en) * | 2009-12-16 | 2010-06-16 | 沈阳建筑大学 | Circular cross-section steel-concrete-FRP solid composite column |
| CN101974958A (en) * | 2010-11-24 | 2011-02-16 | 沈阳建筑大学 | Steel pipe concrete column of I-shaped FRP section |
| CN202117226U (en) * | 2010-11-24 | 2012-01-18 | 沈阳建筑大学 | I-shaped FRP (fiber reinforced plastic) section-steel pipe-concrete column combination |
| CN102108760A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fibre reinforced plastic-steel composite tube restrained reinforcement high-strength concrete column |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN104652703A (en) * | 2013-11-25 | 2015-05-27 | 大连惟康科技有限公司 | Carbon fiber-reinforced plastic steel rib-steel pipe concrete compound column |
Non-Patent Citations (2)
| Title |
|---|
| 于峰等: "新型组合结构柱性能研究", 《工业建筑》 * |
| 王庆利等: "圆截面CFRP-钢复合管混凝土结构的研究", 《沈阳建筑工程学院学报(自然科学版)》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013615A (en) * | 2016-06-21 | 2016-10-12 | 大连理工大学 | Self-stressing-concrete-FRP-pipe-constrained combination column |
| CN106958323A (en) * | 2017-05-14 | 2017-07-18 | 北京工业大学 | The light steel pipe timber with small diameter combination load-bearing pillar and the practice of a kind of band point chamber steel plate |
| CN106978884A (en) * | 2017-05-14 | 2017-07-25 | 北京工业大学 | One kind can assemble light steel tube constraint timber with small diameter combination load-bearing pillar and the practice |
| CN107382179A (en) * | 2017-06-12 | 2017-11-24 | 镇江宇神动力能源有限公司 | A kind of road high stability concrete |
| RU179751U1 (en) * | 2017-07-26 | 2018-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный архитектурно-строительный университет" КГАСУ | STABILITY CONCRETE STAND |
| CN107514096A (en) * | 2017-09-21 | 2017-12-26 | 华侨大学 | A kind of steel epoxy resin mortar multiple tube concrete combination column |
| CN109723139A (en) * | 2017-10-30 | 2019-05-07 | 上海拓观建筑规划设计有限公司 | A kind of improved building structure |
| CN108166682A (en) * | 2018-02-08 | 2018-06-15 | 沈阳建筑大学 | Built-in prefabricated core column composite column structure and preparation method thereof |
| CN108166682B (en) * | 2018-02-08 | 2023-12-19 | 新疆祥达世纪建设有限公司 | Built-in prefabricated core column combined column structure and manufacturing method thereof |
| CN110056130A (en) * | 2019-04-16 | 2019-07-26 | 武汉大学 | FRP pipe profile sea sand fast hardening concrete coupled column |
| CN113073790A (en) * | 2021-04-07 | 2021-07-06 | 浙江大学 | Mechanical anchoring method for FRP (fiber reinforced Plastic) section bar in FRP reinforced concrete composite structure |
| CN113073790B (en) * | 2021-04-07 | 2022-12-09 | 浙江大学 | Mechanical anchoring method for FRP (fiber reinforced Plastic) section bar in FRP reinforced concrete composite structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105201143A (en) | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method | |
| CN102493602B (en) | Ductile concrete column capable of delaying local buckling of steel bars and manufacturing method thereof | |
| CN1818276A (en) | Ribbed concrete column with built-in high-strength or super-strength concrete core column | |
| CN101025034A (en) | Special-shaped steel pipe concrete-core column | |
| CN101338550A (en) | Double-steel tube-concrete combined structural pylon | |
| CN103572895A (en) | Crack-damage controllable high-durability reinforced concrete column structure reinforced by (Fiber Reinforce Plastic) FRP gridding | |
| CN103306427A (en) | Hollow original bamboo steel fiber concrete beam or column member | |
| CN105781017A (en) | Ultrahigh-performance assembly column and manufacturing method thereof | |
| CN101025035A (en) | Steel pipe, steel skeleton, concrete special-shaped column | |
| CN101324116B (en) | Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar | |
| CN104100041A (en) | Steel skeleton-steel pipe fiber concrete cross shaped section composite column | |
| CN104929292A (en) | Combined plate adopting profiled steel plate without adhesive prestress and concrete | |
| KR101358878B1 (en) | Reinforcement member and girder using the same | |
| CN201011049Y (en) | Special shaped steel pipe concrete core pole | |
| CN205330003U (en) | Carbon fiber thin wall steel tube concrete combination column of built -in FRP section bar | |
| CN104100042A (en) | Steel skeleton-steel pipe fiber concrete T-shaped section composite column | |
| CN201228410Y (en) | Special-shaped carbon fiber-rein-forced plastic steel tube concrete core column | |
| CN101570997B (en) | Curvilinear hollow double layer steel tube combined structure of partially filled concrete | |
| CN204418422U (en) | A kind of combined concrete shear wall | |
| CN204715539U (en) | A kind of round steel pipe binding type steel concrete column and reinforced concrete beam node structure | |
| CN201121778Y (en) | Hollow double-layer FRP pipe concrete composite structure | |
| CN102134891A (en) | Novel dual-hollow superimposed structural member | |
| CN103206042A (en) | PVC (polyvinyl chloride) pipe constrained and rectangular stirrup hooped reinforced concrete combined column | |
| CN202689336U (en) | Cylindrical beam formed by fiber reinforce plastic (FRP), concrete and hollow original bamboo | |
| CN104405081A (en) | Steel skeleton-steel tube recycled concrete T-shaped section compound column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |