CN202689338U - Steel pipe FRP pipe concrete composite column - Google Patents

Steel pipe FRP pipe concrete composite column Download PDF

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Publication number
CN202689338U
CN202689338U CN 201120406034 CN201120406034U CN202689338U CN 202689338 U CN202689338 U CN 202689338U CN 201120406034 CN201120406034 CN 201120406034 CN 201120406034 U CN201120406034 U CN 201120406034U CN 202689338 U CN202689338 U CN 202689338U
Authority
CN
China
Prior art keywords
pipe
steel
frp
steel pipe
concrete
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.)
Expired - Fee Related
Application number
CN 201120406034
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Chinese (zh)
Inventor
刘永军
孙永梅
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Shenyang Jianzhu University
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Shenyang Jianzhu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenyang Jianzhu University filed Critical Shenyang Jianzhu University
Priority to CN 201120406034 priority Critical patent/CN202689338U/en
Application granted granted Critical
Publication of CN202689338U publication Critical patent/CN202689338U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model is a steel pipe FRP pipe concrete composite column which is formed by external steel pipes, internal circular-section FRP pipes, and central steel ribs through concreting. The external steel pipe is a rectangular steel pipe, a square steel pipe or a circular steel pipe; the internal circular-section FRP pipe is a CFRP pipe, a GFRP pipe, or a pipe made of other fiber reinforced composite materials; the central steel rib is welded or rolled solid-web section steel or lattice-form composite steel. The composite column is combined by steel pipes with different shapes, FRP pipes with different types, and steel ribs with different types. The utility model can effectively improve structure static performance, seismic behavior, and fire resistance, is convenient and rapid for construction and installation, and is mainly applicable to large-scale industrial buildings and civil buildings with high requirements for bearing capacity.

Description

A kind of steel pipe FRP pipe concrete coupled column
Technical field
The utility model relates to the combination load-carrying members of a kind of enhancement mode in the building field, definite say a kind of steel pipe FRP pipe concrete coupled column, this coupled column is under steel pipe, FRP pipe, reinforcing bar and concrete co-operation, can increase substantially the supporting capacity of member, can be used as supporting member and be widely used in large industrial buildings and civilian construction that supporting capacity is had relatively high expectations.
Background technology
At present, the concrete filled steel tube technology is existing in Practical Project uses more widely; The FRP that is made by fibre reinforced composites manages in the then more strengthening and rebuilding engineering that is applied to building structure; In order to bring into play to a greater extent the performance advantage of steel, FRP and three kinds of materials of concrete, the research of the combining structure that steel pipe, FRP pipe and these three kinds of materials of concrete are formed is progress to some extent also, and representative is steel pipe-FRP pipe-concrete combination column.
Steel pipe-FRP pipe-concrete combination column has been given full play to the performance advantage of steel, FRP and three kinds of materials of concrete, and brings out one's strengths to make up for one's weaknesses to interact and make it have better stress performance, has very large development prospect in Practical Project.Yet, in some large-scale construction engineering that supporting capacity is had relatively high expectations, want the steel pipe that utilizes stress performance good-FRP pipe-concrete combination column and just must add the large pillar sectional dimension and have enough supporting capacitys to guarantee it.Strengthen effective usage space that column cross-section size is not only wasted material but also affected building, be necessary to take new method effectively to improve the steel pipe-limitation of FRP pipe-concrete combination column aspect supporting capacity for this reason, make it have widely engineering using value.
Summary of the invention
The deficiency that exists in order to remedy above-mentioned prior art, main purpose of the present utility model are exploitation enhancement mode combination load-carrying members.This combining structure can increase substantially the supporting capacity of member under steel pipe, FRP pipe, reinforcing bar and concrete co-operation, can be used as in the large industrial buildings and civilian construction that supporting member is widely used in supporting capacity is had relatively high expectations.
Technical scheme is as follows:
A kind of steel pipe FRP pipe concrete coupled column, composite column by steel pipe-FRP tube-steel skeleton-concrete, to be combined behind concreting by outside steel pipe, inner circular cross section FRP pipe and the reinforcing bar that is positioned at the center, its outside steel pipe can be rectangular steel pipe, square steel pipe or round steel pipe, inner circular cross section FRP pipe can be the pipe that CFRP pipe (carbon fiber pipe), GFRP pipe (fiberglass pipe) or other fibre reinforced composites are made, and the center reinforcing bar can be welding, rolling real abdomen formula shaped steel or lattice combination steel.Its coupled column can be formed by difformity steel pipe, variety classes FRP pipe and dissimilar reinforcing bar any combination.And its thickness of steel pipe, FRP thickness of pipe wall, reinforcing bar size can be selected voluntarily according to actual requirement of engineering.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1. composite column by steel pipe-FRP tube-steel skeleton-concrete is because the existence of post center reinforcing bar can on the basis of giving full play to steel, FRP and three kinds of material property advantages of concrete, significantly improve the supporting capacity of post, and need not to strengthen column cross-section size;
2. composite column by steel pipe-FRP tube-steel skeleton-concrete; be positioned at inner FRP pipe owing to being subject to the protective effect of outside steel pipe and annular concrete layer; can effectively overcome the poor shortcoming of fire resistance; make it under the high temperature fire condition, still can bring into play high-strength, efficient advantage, make the enhancement mode coupled column show superior fire resistance.
Description of drawings
Fig. 1 is schematic cross-section of the present utility model;
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12 are the various combination column section schematic diagram of different reinforcing bars and difformity steel pipe and FRP pipe and the formation of concrete various combination form.
Wherein 1 represents steel pipe, 2 expression FRP pipes, 3 expression reinforcing bars, 4 expression concrete
Accompanying drawing supplementary notes: the utility model is applicable to the supporting member in large industrial buildings and the civilian construction, when supporting member is bidirectional eccentric pressurized and two planes when all being principal plane, should adopt the section form of Fig. 4, Fig. 6, Figure 10, Figure 12; When supporting member is bidirectional eccentric pressurized and when only having a principal plane, should select the section form of Fig. 5, Figure 11; When supporting member is the one-way eccentric pressurized, should select Fig. 1, Fig. 2, Fig. 3, the section form of Fig. 7, Fig. 8, Fig. 9; When supporting member is uniaxial force, should select comparatively economical and practical Fig. 1, the section form of Fig. 2.
The specific embodiment
1) according to actual demands of engineering be ready to construct required steel pipe, FRP pipe and reinforcing bar.Steel pipe can be square steel pipe or round steel pipe, the FRP pipe can be that GFRP pipe (fiberglass pipe), CFRP pipe (carbon fiber pipe), AFRP manages (aramid fiber pipe) or other fibre reinforced composites tubulations, and reinforcing bar can be that rolling, the real abdomen formula shaped steel of welding or lattice make up steel.
2) with steel pipe, FRP pipe and reinforcing bar location and installation in the design code position, note making its centre of form to overlap, when steel pipe, FRP pipe and reinforcing bar fall short of when needing spreading, seam should not on same cross section, should stagger mutually.
3) concreting, required concrete can be selected ordinary concrete or high-strength concrete according to actual demands of engineering, annular concrete and core concrete between steel pipe and the FRP pipe can be built simultaneously, for guaranteeing concrete pouring quality, should adopt preferably concrete of workability.
4) the normal temperature maintenance is to designing requirement intensity, and outer surface of steel tube namely forms composite column by steel pipe-FRP tube-steel skeleton-concrete by related specifications regulation brush fire-resistant anticorrosion paint.

Claims (2)

1. steel pipe FRP pipe concrete coupled column is characterized in that: described coupled column is comprised of behind concreting outside steel pipe (1), inner circular cross section FRP pipe (2) and the reinforcing bar (3) that is positioned at the center.
2. a kind of steel pipe FRP pipe concrete coupled column according to claim 1, it is characterized in that: outside steel pipe can be rectangular steel pipe, square steel pipe or round steel pipe, inner circular cross section FRP pipe can be the pipe that CFRP pipe, GFRP pipe or other fibre reinforced composites are made, and the center reinforcing bar can be welding, rolling real abdomen formula shaped steel or lattice combination steel.
CN 201120406034 2011-10-24 2011-10-24 Steel pipe FRP pipe concrete composite column Expired - Fee Related CN202689338U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120406034 CN202689338U (en) 2011-10-24 2011-10-24 Steel pipe FRP pipe concrete composite column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120406034 CN202689338U (en) 2011-10-24 2011-10-24 Steel pipe FRP pipe concrete composite column

Publications (1)

Publication Number Publication Date
CN202689338U true CN202689338U (en) 2013-01-23

Family

ID=47544975

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120406034 Expired - Fee Related CN202689338U (en) 2011-10-24 2011-10-24 Steel pipe FRP pipe concrete composite column

Country Status (1)

Country Link
CN (1) CN202689338U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541511A (en) * 2013-11-06 2014-01-29 安徽工业大学 Method for manufacturing concrete-filled steel tube special-shaped column with built-in polyvinyl chloride-fiber reinforce plastic (PVC-FRP) pipe and high-strength concrete core column
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
CN106012809A (en) * 2016-04-29 2016-10-12 东南大学 Steel-fiber composite concrete combination column and post-earthquake repairing method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541511A (en) * 2013-11-06 2014-01-29 安徽工业大学 Method for manufacturing concrete-filled steel tube special-shaped column with built-in polyvinyl chloride-fiber reinforce plastic (PVC-FRP) pipe and high-strength concrete core column
CN103541511B (en) * 2013-11-06 2016-01-06 安徽工业大学 A kind of preparation method of steel pipe concrete profiled pile of built-in PVC-FRP pipe high-strength concrete stem stem
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
CN106012809A (en) * 2016-04-29 2016-10-12 东南大学 Steel-fiber composite concrete combination column and post-earthquake repairing method thereof
WO2017185942A1 (en) * 2016-04-29 2017-11-02 东南大学 Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof
CN106012809B (en) * 2016-04-29 2018-03-20 东南大学 Restorative procedure after a kind of steel fibrous composite material concrete combination column and its shake
US20180305929A1 (en) * 2016-04-29 2018-10-25 Southeast University Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof
US10378208B2 (en) * 2016-04-29 2019-08-13 Southeast University Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130123

Termination date: 20131024