CN101974958A - Steel pipe concrete column of I-shaped FRP section - Google Patents
Steel pipe concrete column of I-shaped FRP section Download PDFInfo
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- CN101974958A CN101974958A CN 201010557207 CN201010557207A CN101974958A CN 101974958 A CN101974958 A CN 101974958A CN 201010557207 CN201010557207 CN 201010557207 CN 201010557207 A CN201010557207 A CN 201010557207A CN 101974958 A CN101974958 A CN 101974958A
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Abstract
The invention provides a steel pipe concrete column of an I-shaped fiber reinforce plastic (FRP) section and relates to a building member. The steel pipe concrete column consists of a rectangular, square or circular steel pipe, the I-shaped FRP section arranged in the steel pipe and concrete filled between the steep pipe and the I-shaped FRP section, wherein the steel pipe concrete column of the I-shaped FRP section is a coupled column consisting of three different materials of the FRP, the steel pipe and the concrete, namely the steel pipe concrete coupled column of the I-shaped FRP section; and the shape of the cross section of the steel pipe concrete column of the I-shaped FRP section has a rectangular structure, a square structure or a circular structure. Under the conditions of reasonable selection of steel ratio and distribution rate of the FRP, the cross section size of the column can be reduced; and a steel pipe framework can be temporarily supported during construction, so that the construction can be accelerated. The ductility of the column is improved because of the steel pipe so as to contribute to the aseismatic design of seismic areas. The characteristics of light weight and high strength of an FRP material is used to improve the bearing capacity of the column and increase the usable area.
Description
Technical field
The present invention relates to a kind of building unit, particularly relate to a kind of I shape FRP section bar-steel tube-concrete post.
Background technology
Because frame construction has advantages such as flexible arrangement, usage space are big, therefore be subjected to the extensive concern of engineering.And be generally common reinforced concrete post as the frame column of the main member of frame construction, promptly tied up reinforcing cage earlier, propped up template again, last fluid concrete, making this traditional reinforced concrete post exists long in time limit, difficulty is big, inefficient shortcoming, China's utility model patent has provided " a kind of reinforced concrete post " after improving for No. 03248845.9, comprise precast member for reinforcing bar concrete, reinforcing bar, reinforced concrete post is by polylith steel concrete tubular prefabricated units, longitudinal reinforcement network for location sheet, longitudinal reinforcement is formed, polylith steel concrete tubular prefabricated units are overlapped into the post mould, the longitudinal reinforcement network for location sheet that adapts with tubular prefabricated units inner chamber is set between adjacent steel reinforced concrete tubular prefabricated units seam, longitudinal reinforcement interts in longitudinal reinforcement network for location slice graticule, serial connection polylith steel concrete tubular prefabricated units, concreting in the superimposed post mould cavity of steel concrete tubular prefabricated units finally becomes reinforced concrete post again.Though the shortcoming that the reinforced concrete post after this improvement has existed when tentatively having overcome conventional steel reinforced concrete column production can not satisfy the more and more higher requirement of high-rise building to the use concrete structure.For this reason, people develop novel concrete structure again, and for example United States Patent (USP) provides for No. 3051161 uses the concrete filling steel pipe, to increase the encased structures technical scheme of compressive strength.China's utility model patent has provided " a kind of novel steel tube concrete column " for No. 99236299.7, wherein being used for the concrete steel pipe of filling is the special-shaped thin wall steel pipe, be provided with binding bar on each limit of special-shaped thin wall steel pipe, though this steel core concrete column has solved the single problem of existing concrete filled steel tube post shapes, but still exist for the local buckling that prevents thin-wall steel tube binding bar need be set, construction has the shortcoming of inconvenience more.And I shape FRP section bar-steel tube-concrete post is to utilize the I shape FRP section bar that is placed on steel duct to replace core concrete to bear structural load, reduced the lateral pressure of core concrete to steel pipe walls, and do not need to be provided with binding bar, and can reduce the sectional dimension of member, the appearance of similar techniques scheme is not then arranged in the literature as yet.
Summary of the invention
The object of the present invention is to provide a kind of steel core concrete column of I shape FRP section bar.The steel core concrete column of this I shape FRP section bar solves the shortcoming of existing square, rectangle or round steel pipe concrete column, make full use of the intensity of FRP material, have the bearing capacity height, rigidity is big, in light weight, plasticity, good toughness, characteristics such as shock resistance and anti-fatigue performance are good, anti-seismic performance is good.
The objective of the invention is to be achieved through the following technical solutions:
A kind of steel core concrete column of I shape FRP section bar, by rectangle, square or circular steel pipe be placed on the I shape FRP section bar in the steel pipe and the concrete that is filled between the two constitutes, the steel core concrete column of I shape FRP section bar is the coupled column of being made up of FRP, steel pipe and three kinds of different materials of concrete, be the concrete filled steel tube coupled column of I shape FRP section bar, wherein the cross sectional shape of the steel core concrete column of I shape FRP section bar is rectangular configuration, square structure or circular configuration.
The steel core concrete column of described a kind of I shape FRP section bar, the solid composite column of forming by I shape FRP section bar, rectangular steel pipe and concrete of the steel core concrete column of described I shape FRP section bar.
The steel core concrete column of described a kind of I shape FRP section bar, the solid composite column of forming by I shape FRP section bar, rectangular steel tube and concrete of the steel core concrete column of described I shape FRP section bar.
The steel core concrete column of described a kind of I shape FRP section bar, the solid composite column of forming by I shape FRP section bar, round steel pipe and concrete of the steel core concrete column of described I shape FRP section bar.
Advantage of the present invention and effect are:
The present invention is directed to current because the number of plies of building is more and more, depth of building is more and more higher, the intensity of the material that uses is more and more higher, and such as Materials with High Strength FRP, high-strength concrete etc., and the ductility of high-strength concrete is relatively poor, FRP belongs to the linear elasticity material, will influence the anti-seismic performance of structure.The theory of the concrete filled steel tube of knowing in conjunction with oneself is improved the structure of existing steel core concrete column, and is provided novel I shape FRP section bar-steel tube-concrete post.This novel I shape FRP section bar-steel tube-concrete post, solve the shortcoming of existing square, rectangle or round steel pipe concrete column, make full use of the intensity of FRP material, has the bearing capacity height, rigidity is big, in light weight, plasticity, good toughness, characteristics such as shock resistance and anti-fatigue performance are good, anti-seismic performance is good.
Can reduce the sectional dimension of post behind choose reasonable steel pipe, FRP Disposing rate, steel pipe skeleton can provide interim support when construction, quicken construction.
Because the existence of steel pipe has improved the ductility of post, improved the bearing capacity of post, be beneficial to the earthquake zone seismic design.
I shape FRP section bar-steel tube-concrete post can reduce the weight of building in use, increases effective usable floor area.
Description of drawings
Fig. 1 for the concrete filled steel tube column section of I shape FRP section bar is
SquareThe schematic diagram of shape solid construction;
Fig. 2 for the concrete filled steel tube column section of I shape FRP section bar is
The sideThe schematic diagram of shape solid construction;
Fig. 3 for the concrete filled steel tube column section of I shape FRP section bar is
CircleThe schematic diagram of shape solid construction.
The specific embodiment
The steel core concrete column of I shape FRP section bar of the present invention is by rectangle, square or round steel pipe and be placed on the I shape FRP section bar in the steel pipe and the concrete that is filled between the two constitutes, be characterized in the coupled column of steel core concrete column (I shape FRP section bar-steel tube-concrete post) for forming of I shape FRP section bar by FRP, steel pipe and three kinds of different materials of concrete, be I shape FRP section bar-steel tube-concrete coupled column, wherein the cross sectional shape of I shape FRP section bar-steel tube-concrete post is rectangular configuration, square structure or circular configuration.
Used steel pipe can be welded by steel plate in I shape FRP section bar-steel tube-concrete post in the present invention, can be that rectangle also can be square or circle, built-in I shape FRP section bar.The configuration of steel pipe is by existing steel and the design of concrete combined structure tecnical regulations.
The present invention relates to I shape FRP section bar-steel tube-concrete post, particularly relate to by rectangle, square or round steel pipe and be placed on the I shape FRP section bar in the steel pipe and the concrete that is filled between the two constitutes, I shape FRP section bar-steel tube-concrete post be the coupled column of forming by FRP, steel pipe and three kinds of different materials of concrete, be I shape FRP section bar-steel tube-concrete coupled column, wherein the cross sectional shape of I shape FRP section bar-steel tube-concrete post is rectangular configuration, square structure or circular configuration.It is improvement to existing concrete filled steel tube rod structure, also be in the building engineering field Application Expansion to the FRP material, belong to the post component technology field that is used for load-bearing in the fixed buildings, in high-rise building, be used as the main member of building frame structure.
As shown in Figure 1, I shape FRP section bar-steel tube-concrete column section of providing of the present invention is
SquareThe shape solid construction mainly is made up of rectangular steel pipe, I shape FRP section bar and the concrete that pours between the two, and steel pipe is welded by steel plate, and employing I shape FRP section bar.
As shown in Figure 2, I shape FRP section bar-steel tube-concrete column section of providing of the present invention is
The sideThe shape solid construction mainly is made up of rectangular steel tube, I shape FRP section bar and the concrete that pours between the two, and steel pipe is welded by steel plate, and employing I shape FRP section bar.
As shown in Figure 3, I shape FRP section bar-steel tube-concrete column section that the present invention provides is the circular solids structure, mainly forms employing welded steel pipe and I shape FRP section bar by round steel pipe, I shape FRP section bar and the concrete that pours between the two.
Claims (4)
1. the material steel core concrete column of an I shape FRP type, it is characterized in that by rectangle, square or circular steel pipe and be placed on the I shape FRP section bar in the steel pipe and the concrete that is filled between the two constitutes, the steel core concrete column of I shape FRP section bar is the coupled column of being made up of FRP, steel pipe and three kinds of different materials of concrete, be the concrete filled steel tube coupled column of I shape FRP section bar, wherein the cross sectional shape of the steel core concrete column of I shape FRP section bar is rectangular configuration, square structure or circular configuration.
2. the material steel core concrete column of a kind of I shape FRP type according to claim 1 is characterized in that the solid composite column of being made up of I shape FRP section bar, rectangular steel pipe and concrete of the steel core concrete column of described I shape FRP section bar.
3. the material steel core concrete column of a kind of I shape FRP type according to claim 1 is characterized in that the solid composite column of being made up of I shape FRP section bar, rectangular steel tube and concrete of the steel core concrete column of described I shape FRP section bar.
4. the material steel core concrete column of a kind of I shape FRP type according to claim 1 is characterized in that the solid composite column of being made up of I shape FRP section bar, round steel pipe and concrete of the steel core concrete column of described I shape FRP section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557207 CN101974958A (en) | 2010-11-24 | 2010-11-24 | Steel pipe concrete column of I-shaped FRP section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557207 CN101974958A (en) | 2010-11-24 | 2010-11-24 | Steel pipe concrete column of I-shaped FRP section |
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| Publication Number | Publication Date |
|---|---|
| CN101974958A true CN101974958A (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010557207 Pending CN101974958A (en) | 2010-11-24 | 2010-11-24 | Steel pipe concrete column of I-shaped FRP section |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535748A (en) * | 2011-12-31 | 2012-07-04 | 北京工业大学 | Rectangular concrete-filled steel tube column added with I-shaped rib plate and preparing method of rectangular concrete-filled steel tube column |
| CN102912883A (en) * | 2012-11-07 | 2013-02-06 | 沈阳建筑大学 | Constraint friction anti-buckling energy dissipation support |
| CN103899040A (en) * | 2014-04-02 | 2014-07-02 | 哈尔滨工程大学 | Fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column |
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
| CN112064791A (en) * | 2020-07-31 | 2020-12-11 | 福州大学 | Column-beam connecting node of GFRP pipe-concrete-I-steel combined column |
Citations (4)
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|---|---|---|---|---|
| CN1987012A (en) * | 2006-12-22 | 2007-06-27 | 哈尔滨工业大学 | Steel tube binding type steel high strength concrete pole |
| CN101117824A (en) * | 2007-07-06 | 2008-02-06 | 沈阳建筑大学 | Fibre reinforced plastic-steel pipe-concrete column |
| CN101177965A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Steel pipe-FRP pipe core concrete combination structure |
| CN101736860A (en) * | 2009-12-16 | 2010-06-16 | 沈阳建筑大学 | Circular cross-section steel-concrete-FRP solid composite column |
-
2010
- 2010-11-24 CN CN 201010557207 patent/CN101974958A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987012A (en) * | 2006-12-22 | 2007-06-27 | 哈尔滨工业大学 | Steel tube binding type steel high strength concrete pole |
| CN101117824A (en) * | 2007-07-06 | 2008-02-06 | 沈阳建筑大学 | Fibre reinforced plastic-steel pipe-concrete column |
| CN101177965A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Steel pipe-FRP pipe core concrete combination structure |
| CN101736860A (en) * | 2009-12-16 | 2010-06-16 | 沈阳建筑大学 | Circular cross-section steel-concrete-FRP solid composite column |
Non-Patent Citations (1)
| Title |
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| 《纤维复合材料》 20021231 孔庆宝 复合材料在基础设施工程中开发应用和技术研究（下） 30-36 1-4 , 第4期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535748A (en) * | 2011-12-31 | 2012-07-04 | 北京工业大学 | Rectangular concrete-filled steel tube column added with I-shaped rib plate and preparing method of rectangular concrete-filled steel tube column |
| CN102912883A (en) * | 2012-11-07 | 2013-02-06 | 沈阳建筑大学 | Constraint friction anti-buckling energy dissipation support |
| CN102912883B (en) * | 2012-11-07 | 2014-10-15 | 沈阳建筑大学 | Constraint friction anti-buckling energy dissipation support |
| CN103899040A (en) * | 2014-04-02 | 2014-07-02 | 哈尔滨工程大学 | Fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column |
| CN103899040B (en) * | 2014-04-02 | 2016-01-27 | 哈尔滨工程大学 | A kind of FRP puts more energy into concrete filled steel tube coupled column |
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
| CN112064791A (en) * | 2020-07-31 | 2020-12-11 | 福州大学 | Column-beam connecting node of GFRP pipe-concrete-I-steel combined column |
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Application publication date: 20110216 |