CN101324116B - Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar - Google Patents
Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar Download PDFInfo
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- CN101324116B CN101324116B CN2008100123152A CN200810012315A CN101324116B CN 101324116 B CN101324116 B CN 101324116B CN 2008100123152 A CN2008100123152 A CN 2008100123152A CN 200810012315 A CN200810012315 A CN 200810012315A CN 101324116 B CN101324116 B CN 101324116B
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Abstract
The invention relates to a preparation method for a concrete component, in particular to a preparation method for profiled carbon fiber reinforced plastic steel pipe concrete core column in the civil engineering. The preparation of the profiled carbon fiber reinforced plastic steel pipe concrete core column is carried out according to the steps as follows: firstly, the carbon fiber reinforced plastic is stuck on the external side of the steel pipe so as to lead the carbon fiber reinforced plastic to be integrated into a whole with the steel pipe; subsequently, the carbon fiber reinforced plastic steel pipe is positioned and fixed; subsequently, the reinforcement and formworks are installed; finally, the concrete is poured. The bearing force of the normal section of the column is formed bythe superposition of two parts which are respectively the sum of superposition of the bearing forces of reinforced concrete and the carbon fiber reinforced plastic steel pipe concrete core column. The preparation method of the invention is used for the main components of building frame structures in the high-rise buildings and has the advantages of high bearing capability, large rigidity, light weight, good plasticity and tenacity, good impact-resistance performance and anti-fatigue performance, excellent vibration prevention performance, etc.
Description
Technical field
The present invention relates to a kind of preparation method of concrete component, particularly relate to a kind of preparation method that is used for the special-shaped carbon fiber reinforced plastic steel tube concrete core pillar of civil engineering.
Background technology
At present, reinforced concrete special-shape column is generally foursquare reinforced concrete post as the frame column of frame construction main member.Since can't solve since the sectional dimension of frame column often greater than the thickness of body of wall, in use, the partly phenomenon of outstanding body of wall of pillar appears in indoor meeting, thereby has influenced indoor space and use.In order to address this problem, the form of structure of shaped rc columns has appearred.For the reinforced concrete special-shape column structure, mainly contain T, L, cross.Scholar both domestic and external has carried out extensive, deep research.Its theory basically forms, and writing of the local rules that provinces and cities such as Tianjin, Shenyang, Guangdong, Shanxi have finished and guides in engineering practice, and building area reaches number with ten million square metre.
But, find also that under study for action the bearing capacity of reinforced concrete special-shape column and ductility are slightly poor.This has limited the development of special-shape column structure undoubtedly, and the ductility and the bearing capacity that therefore how to improve the special-shape column structure are the task of top priority.
Concrete filled steel tube coupled column: in " encased structures ", steel core concrete column can be divided into steel core concrete column and steel pipe the steel core concrete column post in of steel pipe in the post outside, the former is commonly referred to steel core concrete column, and the latter is commonly referred to the concrete filled steel tube coupled column.
In the concrete filled steel tube coupled column, the concrete in the steel pipe is generally high-strength concrete, and its strength grade is generally equal to or is higher than the outer strength grade of concrete of steel pipe.Because steel pipe provides effect of contraction to the concrete of core space, has produced the sleeve effect, so the concrete filled steel tube coupled column can increase the energy dissipation capacity of structure, the whole anti-seismic performance of raising building, its energy dissipation capacity is apparently higher than general reinforced concrete post.
If at first, bear the load at structure construction initial stage by it at high core column of compressive strength of post internal production.After treating that a certain height is arrived in main structure construction, build the steel pipe peripheral concrete again, promptly form superposed column.In superposed column, the part vertical load of structure will be born by core column, another part vertical load is born by the post peripheral concrete, thereby make pillar have ductility preferably, reach the purpose of improving the High Strength Concrete Structures anti-seismic performance, its achievement in research successfully is applied among nearly 30 highrise buildings.But for the research and the application of such post, it is formal mainly to concentrate on the square-section at present.
The steel tubes concrete-core column: if shaped rc columns and concrete filled steel tube coupled column are integrated, study a kind of special-shaped steel pipe concrete-core column, one improves the deficiency of present shaped rc columns surely.Based on this, I am the patent " steel tubes concrete-core column (ZL200620153523.0) " of application once, and has authorized, can address this problem to a certain extent.But also have certain problem, maximum problem is the load that bears when post when big, and diameter of steel tube certainty is very big so, if its diameter has surpassed the width of beam, with the very burden that causes in the construction.
Summary of the invention
The objective of the invention is to: shaped rc columns, steel tubes concrete-core column and three parts of carbon fiber reinforced plastic steel tube concrete post are integrated, make a kind of special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, to improve steel tubes concrete core columns bearing capacity.
The objective of the invention is to be achieved through the following technical solutions:
The preparation method of special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, the making of its special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, make according to the following steps: at first carbon fibre reinforced plastic is pasted on the steel pipe outside and makes carbon fibre reinforced plastic and steel pipe become one, again that carbon fiber reinforced plastic steel pipe is in place and fixing, assembling reinforcement then, a masterplate, last concreting.
The preparation method of aforesaid special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, carbon fiber reinforced plastic steel pipe is positioned at the inside of T, L, cross section column during making, and in the crossover sites of both direction steel concrete in length and breadth.
The preparation method of aforesaid special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, its stem stem normal section bearing capacity is formed by stacking by two parts, is respectively the closing of stack of steel concrete and the two-part bearing capacity of carbon fiber reinforced plastic steel tube concrete core pillar.
The preparation method of aforesaid special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, the fabric that its carbon fibre reinforced plastic fabric adopts is unidirectional or two-way, machine direction and mast axis angle are between 0～90 °.
Advantage of the present invention and effect are:
1. carbon fiber reinforced plastic steel pipe is positioned at the inside of direction steel concrete crossover sites in length and breadth, can be fire-resistant, corrosion-resistant;
2. when construction, can pour into a mould the concrete of carbon fiber reinforced plastic steel pipe inside earlier, the outer concrete of surveying of back cast carbon fiber reinforced plastic steel pipe, thus form superposed column; Concreting simultaneously;
3. because the existence of carbon fiber reinforced plastic steel pipe has improved the ductility of post, improve the bearing capacity of post, be beneficial to the earthquake zone seismic design.
Description of drawings
Fig. 1 is cross special-shaped carbon fiber reinforced plastic steel tube concrete core pillar figure of the present invention;
Fig. 2 is the L shaped special-shaped carbon fiber reinforced plastic steel tube concrete core pillar figure of the present invention;
Fig. 3 is T shape special-shaped carbon fiber reinforced plastic steel tube concrete core pillar figure of the present invention.
The specific embodiment
The present invention is described in detail with reference to the accompanying drawings.
In the carbon fiber reinforced plastic steel tube concrete post, carbon fibre reinforced plastic is pasted on outer wall of steel pipe by structure glue according to certain mode, thereby forms the carbon fiber reinforced plastic steel tube concrete post.Result of study shows that the existence of carbon fibre reinforced plastic has increased bearing of component, can effectively reduce the consumption of steel.Because carbon fibre reinforced plastic intensity height, thin thickness, so pasted carbon fibre reinforced plastic, the diameter of the carbon fiber reinforced plastic steel tube concrete post of formation does not significantly increase, and the bearing capacity raising is many.
Based on more than, the present invention proposes a kind of form of new construction member, i.e. special-shaped carbon fiber reinforced plastic steel tube concrete core pillar.
The abnormity of being carried is meant that the section form of post is T, L, cross, and steel pipe remains circular, at first carbon fibre reinforced plastic is wound in outer wall of steel pipe before construction, forms carbon fiber reinforced plastic steel pipe.
The stem stem normal section bearing capacity is formed by stacking by two parts, is respectively the closing of stack of steel concrete and the two-part bearing capacity of carbon fiber reinforced plastic steel tube concrete core pillar.
Fig. 1 is that the cross section is the special-shaped carbon fiber reinforced plastic steel tube concrete core pillar schematic diagram of " ten " font structure.Form by carbon fibre reinforced plastic round steel pipe 2, steel concrete 3 and concrete 1, wherein concrete 1 is positioned at carbon fiber reinforced plastic steel pipe, carbon fibre reinforced plastic 4 is wound in outer wall of steel pipe, and carbon fiber reinforced plastic steel pipe is positioned at the steel concrete of direction in length and breadth.
Fig. 2 is that the cross section is the special-shaped carbon fiber reinforced plastic steel tube concrete core pillar schematic diagram of " L " font structure.Be made up of carbon fibre reinforced plastic round steel pipe, steel concrete and concrete, wherein concrete is positioned at carbon fiber reinforced plastic steel pipe, and carbon fiber reinforced plastic steel pipe is positioned at the steel concrete of direction in length and breadth.
Fig. 3 is that the cross section is the special-shaped carbon fiber reinforced plastic steel tube concrete core pillar schematic diagram of " T " font structure.Be made up of carbon fibre reinforced plastic round steel pipe, steel concrete and concrete, wherein concrete is positioned at carbon fiber reinforced plastic steel pipe, and carbon fiber reinforced plastic steel pipe is positioned at the steel concrete of direction in length and breadth.
Claims (1)
1. the preparation method of special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, it is characterized in that the making of special-shaped carbon fiber reinforced plastic steel tube concrete core pillar, make according to the following steps: at first carbon fibre reinforced plastic is pasted on the steel pipe outside and makes carbon fibre reinforced plastic and steel pipe become one, carbon fibre reinforced plastic is unidirectional or two-way, machine direction and mast axis angle are between 0～90 °, again that carbon fiber reinforced plastic steel pipe is in place and fixing, assembling reinforcement then, a masterplate, last concreting; Carbon fiber reinforced plastic steel pipe is positioned at the inside of T, L, cross section column, and in the crossover sites of both direction steel concrete in length and breadth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100123152A CN101324116B (en) | 2008-07-15 | 2008-07-15 | Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100123152A CN101324116B (en) | 2008-07-15 | 2008-07-15 | Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar |
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| Publication Number | Publication Date |
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| CN101324116A CN101324116A (en) | 2008-12-17 |
| CN101324116B true CN101324116B (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100123152A Expired - Fee Related CN101324116B (en) | 2008-07-15 | 2008-07-15 | Method for manufacturing special-shaped carbon fiber reinforced plastic steel tube concrete core pillar |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985851A (en) * | 2010-11-20 | 2011-03-16 | 大连理工大学 | FRP (fiber reinforced plastic)-steel composite tube concrete column |
| CN102108761A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fiber reinforced plastics-steel composite pipe restricted structural steel high-strength concrete column |
| 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 |
| CN102912936A (en) * | 2012-10-16 | 2013-02-06 | 浙江树人大学 | Method for designing FRP (fiber reinforce plastic) tube-concrete-steel tube combined column |
| CN106348664B (en) * | 2014-08-07 | 2018-08-24 | 嘉兴职业技术学院 | The production method of glascrete building block stem |
| CN114809295B (en) * | 2022-04-07 | 2023-07-21 | 中建三局集团有限公司 | Multi-core pressure forming steel pipe concrete superposed member and manufacturing method thereof |
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