CN110056129A - FRP pipe profile sea sand fast hardening concrete square combination column - Google Patents
FRP pipe profile sea sand fast hardening concrete square combination column Download PDFInfo
- Publication number
- CN110056129A CN110056129A CN201910302083.2A CN201910302083A CN110056129A CN 110056129 A CN110056129 A CN 110056129A CN 201910302083 A CN201910302083 A CN 201910302083A CN 110056129 A CN110056129 A CN 110056129A
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- China
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- frp
- sea sand
- concrete
- section bar
- fast hardening
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Artificial Fish Reefs (AREA)
Abstract
It the present invention relates to a kind of FRP pipe profile sea sand fast hardening concrete square combination column, is managed by the FRP of outer layer, internal FRP drawing and extruding section bar and sea sand fast hardening concrete therebetween form.FRP pipe provides hoop constraint for concrete, so that concrete is in three dimension stress state, improves the bearing capacity and ductility of column；FRP drawing and extruding section bar provides axis pressure, bending drag, reduces the contraction distortion of concrete, prevents the buckling of coupled column, improves the bending stiffness and overall stability of coupled column.Furthermore, due to the good corrosion resistance of FRP and durability, the concrete as made of the marine materials such as seawater, sea sand or coral sand, corallite and cement, accelerator mix can be used in the coupled column, greatly improve the utilization rate of marine resources, especially for ocean islands and reefs engineering, the coupled column be able to satisfy gather materials on the spot, the requirement that rapid construction, durability are good.
Description
Technical field
The present invention relates to construction engineering technical fields, in particular to rectangular group of FRP pipe profile sea sand fast hardening concrete a kind of
Zygostyle.
Background technique
China has a vast territory, there is very long coastline, in wide ocean, there is marine resources abundant.Such as exist
Civil construction industry, available seawater, sea sand and the coral reef scale of construction are huge, and cost of transporting by sea is lower than land transportation cost.But
It can lead to steel bar corrosion due to containing a large amount of chloride ion in seawater, seriously affect the structural bearing capacity and durability of concrete.
Although engineering circles propose sea sand desalting method, addition corrosion inhibitor method, reinforcing bar processing Protection Code, due to technology and cost problem,
The use of these methods nevertheless suffers from limitation.Especially for the ocean islands and reefs engineering for lacking goods and materials, machinery, excessively complicated place
Science and engineering sequence and expensive cost are simultaneously unrealistic.
In order to fundamentally solve steel bars corrosion problem, material replacement is an effective method.Fiber-reinforced composite material
Expect that (FRP) is used as a kind of high-performance novel structural material, there is high-strength light, corrosion resistance and very strong designability, by it
It is fabricated to the diversified forms such as cloth, plate, muscle, grid, pipe and Combined concrete, has both adapted to severe marine environment, moreover it is possible on the spot
Materials, using untreated seawater, sea sand, corallite, substantially reduce the freight volume of raw material, are that optimum islands and reefs are developed
A kind of mode.
FRP pipe has preferable binding character to concrete, so that concrete is in triaxial stress state, can greatly improve carrying energy
Power, ductility and anti-seismic performance.Current research is primary concern is that circle FRP pipe confined concrete, and in practical applications, by
In the reasons such as node processing and architectural construction, square-section is more considered.
Mostly use normal concrete in existing research achievement in FRP pipe, and to full coral seawater coagulation soil studies have shown that
Tensile splitting strength, the flexural strength of full coral seawater coagulation soil are all larger than the common coagulation of identical cubic compressive strength grade
Native and common light aggregate concrete, and axial compressive strength is then between normal concrete and common light aggregate concrete；This
Outside, the static modulus of elasticity of Quan Shanhu seawater coagulation soil is slightly below normal concrete, but is higher than common light aggregate concrete；Full coral
The Poisson's ratio of concrete is 0.25-0.28.And for marine sand concrete, existing research shows by simple physical Screening Treatment
Marine sand concrete relative to river sand concrete, mechanical property does not have apparent difference, and sea sand and flyash, slag etc.
Concrete additives have certain compatibility.And for ocean islands and reefs engineering, construction requires lightweight, quick and corrosion-resistant, and
The usual building height of islands and reefs engineering is little, and bearing capacity is not required for very high-strength.In consideration of it, the corallite gathered materials on the spot completely,
Sea sand (or coral sand) can be used as the coarse-fine aggregate in concrete, constraint of the marine sand concrete made of thus pouring in FRP pipe
Under, requirement for bearing capacity can be reached.In addition, adding a certain amount of accelerator when preparing marine sand concrete, sea sand can be greatly shortened
The condensation firm time of concrete meets marine environment speed of application requirement.And FRP profile is embedded in FRP pipe, it can significantly mention
Resistance to compression, bending resistance and the stability of high component, FRP profile mostly uses cross, I-shaped and H-shaped, profile in current research
It there is no being connected with FRP pipe, also needs to carry out the positioning of profile before casting concrete, when FRP pipe is connected with profile, cuts
Face is divided into several parts, can reduce the early-age shrinkage of concrete, keeps binding effect more preferable.
Summary of the invention
The purpose of the present invention is designing a kind of FRP pipe profile sea sand fast hardening concrete square combination column, ocean islands and reefs are solved
In engineering the problem of materials inconvenience, constructional difficulties, durability difference and Lack of support.
To achieve the above object, FRP pipe profile sea sand fast hardening concrete square combination column provided by the invention, feature exist
In: it is managed by the FRP of outer layer, internal FRP drawing and extruding section bar and sea sand fast hardening concrete therebetween form；The FRP pipe is rectangular
FRP winding pipe；Arrangement accounts for the longitudinal fiber of FRP tube outer surface product 20%-30% in the FRP pipe；The FRP drawing and extruding section bar is adopted
With cross drawing and extruding section bar, the cross drawing and extruding section bar along four endpoints of FRP pipe cross sectional arrangement and cross drawing and extruding section bar with
The connection of FRP inside pipe wall；The FRP pipe using prefabrication and is bolted together with inside FRP drawing and extruding section bar, collectively forms sea sand
The formwork for placing of concrete；The sea sand fast hardening concrete is filled in the gap in formwork for placing.
Preferably, the FRP pipe and FRP drawing and extruding section bar are that single GFRP, CFRP, AFRP or assorted fibre are compound
It is any in material, and fiber volume fraction is not less than 50%.
Further, the sea sand fast hardening concrete is mixed by seawater, sea sand or coral sand, corallite, cement and accelerator
It closes, each component mass ratio is seawater: sea sand: corallite: sulphate aluminium cement: accelerator=235:685:
1680:550:14；Or are as follows: seawater: coral sand: corallite: sulphate aluminium cement: accelerator=235:685:1680:550:
14。
It advantages of the present invention and has the beneficial effect that:
(1) coupled column is available locally, and makes full use of the marine resources such as sea sand.In core sea sand fast hardening concrete in addition to
Outside cement and accelerator, seawater, sea sand (or coral sand) and corallite are available locally, greatly reduction transportation cost.
(2) construction is quick.FRP pipe and FRP profile are prefabrication assembling, light high-strength, are readily transported；And the two is total
With concrete-pouring template is constituted, along with the use of accelerator, speed of application will be greatly improved.
(3) coupled column has preferable durability and bearing capacity.Due to the good durability of FRP, and in the coupled column
Without using reinforcing bar and steel pipe, so that coupled column has preferable durability；In addition, FRP pipe and FRP profile can provide concrete constraint
It acts on and as resistance to side pressure template, enough section rigidities is provided, the bearing capacity and stability of structure are greatly promoted.
Detailed description of the invention
Fig. 1 is cross section structure schematic diagram of the present invention；
In figure: FRP pipe 1, FRP drawing and extruding section bar 2, sea sand fast hardening concrete 3.
Specific embodiment
The present invention is further described in detail below in conjunction with attached drawing:
FRP pipe profile sea sand fast hardening concrete square combination column as shown in the figure, it is characterised in that: managed by the FRP of outer layer
1, internal FRP drawing and extruding section bar 2 and sea sand fast hardening concrete 3 therebetween form；FRP pipe 1 is rectangular FRP winding pipe；FRP pipe 1
It is middle to arrange the longitudinal fiber for accounting for 1 external surface area 20%-30% of FRP pipe；FRP drawing and extruding section bar 2 uses cross drawing and extruding section bar, cross
Drawing and extruding section bar is connect along four endpoints of 1 cross sectional arrangement of FRP pipe and cross drawing and extruding section bar with 1 inner wall of FRP pipe；FRP pipe 1 with it is interior
Portion's FRP drawing and extruding section bar 2 is using prefabrication and is bolted together, and collectively forms the formwork for placing of marine sand concrete 3；Sea sand rapid hardening
Concrete 3 is filled in the gap in formwork for placing.
FRP pipe 1 and FRP drawing and extruding section bar 2 are any in single GFRP, CFRP, AFRP or fiber hybrid composite, and
Fiber volume fraction is not less than 50%.Sea sand fast hardening concrete 3 is by seawater, sea sand or coral sand, corallite, cement and accelerator
Mix forms, and each component mass ratio is seawater: sea sand: corallite: sulphate aluminium cement: accelerator=235:685:1680:
550:14；Or are as follows: seawater: coral sand: corallite: sulphate aluminium cement: accelerator=235:685:1680:550:14.
The production method of FRP pipe profile sea sand fast hardening concrete square combination column of the present invention, mainly comprises the steps that
1) coral reef is crushed, processed, filter out corallite, coral sand with certain granules gradation；
2) light materials such as the shell for using sieve pore to be removed in sea sand for the roller screen of 10mm；
3) corallite, sea sand (or coral sand), cement, seawater and accelerator are placed on FRP pipe and FRP profile through mix
Between, sea sand fast hardening concrete is formed through maintenance.
FRP pipe profile sea sand fast hardening concrete square combination column obtained is 6mm in outer layer CFRP thickness of pipe wall, and internal diameter is
220mm, a height of 800mm, internal CFRP profile thickness pour sea sand fast hardening concrete in the template for 10mm composition.First by coral
Coral stone is crushed, and the corallite of partial size 20-40mm is filtered out, and sieve pore is then used to remove the shellfish in sea sand for the roller screen of 10mm
The light materials such as shell class are equipped with seawater, cement, accelerator and carry out mix, and wherein ratio of mud control is between 0.4-0.5, accelerator
Volume is 3% -5%.In casting process, Yao Jinhang vibrates closely knit to guarantee.The sea sand rapid hardening coagulation prepared by the method
The native presetting period is 3-5 minutes, and final setting time is 8-10 minutes, is able to satisfy the requirement of rapid construction under marine environment.
Claims (3)
1. a kind of FRP pipe profile sea sand fast hardening concrete square combination column, it is characterised in that: (1) is managed by the FRP of outer layer, it is internal
FRP drawing and extruding section bar (2) and therebetween sea sand fast hardening concrete (3) composition；The FRP pipe (1) is rectangular FRP winding pipe；Institute
State the longitudinal fiber that arrangement in FRP pipe (1) accounts for FRP pipe (1) external surface area 20%-30%；The FRP drawing and extruding section bar (2) uses
Cross drawing and extruding section bar, the cross drawing and extruding section bar along FRP manage four endpoints of (1) cross sectional arrangement and cross drawing and extruding section bar with
FRP manages the connection of (1) inner wall；The FRP pipe (1) using prefabrication and is bolted together with inside FRP drawing and extruding section bar (2), altogether
With the formwork for placing for constituting marine sand concrete (3)；The sea sand fast hardening concrete (3) is filled in the gap in formwork for placing.
2. FRP pipe profile sea sand fast hardening concrete square combination column according to claim 1, it is characterised in that: the FRP
(1) and FRP drawing and extruding section bar (2) are managed to be any in single GFRP, CFRP, AFRP or fiber hybrid composite, and corpus fibrosum
Product content is not less than 50%.
3. FRP pipe profile sea sand fast hardening concrete square combination column according to claim 1 or 2, it is characterised in that: described
Sea sand fast hardening concrete (3) is formed by seawater, sea sand or coral sand, corallite, cement and accelerator mix, each group sub-prime
Amount ratio is seawater: sea sand: corallite: sulphate aluminium cement: accelerator=235:685:1680:550:14；Or are as follows: sea
Water: coral sand: corallite: sulphate aluminium cement: accelerator=235:685:1680:550:14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302083.2A CN110056129A (en) | 2019-04-16 | 2019-04-16 | FRP pipe profile sea sand fast hardening concrete square combination column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302083.2A CN110056129A (en) | 2019-04-16 | 2019-04-16 | FRP pipe profile sea sand fast hardening concrete square combination column |
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| Publication Number | Publication Date |
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| CN110056129A true CN110056129A (en) | 2019-07-26 |
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| CN201910302083.2A Pending CN110056129A (en) | 2019-04-16 | 2019-04-16 | FRP pipe profile sea sand fast hardening concrete square combination column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962768A (en) * | 2020-09-11 | 2020-11-20 | 广东工业大学 | Multi-cavity composite material concrete special-shaped column |
| CN113175258A (en) * | 2021-04-16 | 2021-07-27 | 华中科技大学 | FRP pipe-FRP shear-resistant section bar-concrete combined member and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087886A (en) * | 1992-12-10 | 1994-06-15 | 中国人民解放军海军工程设计研究局 | Coral concrete and compound method thereof |
| US5599599A (en) * | 1995-07-06 | 1997-02-04 | University Of Central Florida | Fiber reinforced plastic ("FRP")-concrete composite structural members |
| CN201649285U (en) * | 2010-02-02 | 2010-11-24 | 哈尔滨工业大学深圳研究生院 | FRP sectional steel sea-sand concrete component |
| CN104264903A (en) * | 2014-09-10 | 2015-01-07 | 哈尔滨工业大学深圳研究生院 | Overall sea concrete filled steel tube component and application method thereof |
| CN104328775A (en) * | 2014-10-22 | 2015-02-04 | 清华大学 | Seawater corrosion-resistance composite combination structure adopting seawater sea sand concrete |
| CN106149872A (en) * | 2016-07-05 | 2016-11-23 | 中国京冶工程技术有限公司 | A kind of advanced composite material (ACM) and coral concrete structural system and construction method thereof |
-
2019
- 2019-04-16 CN CN201910302083.2A patent/CN110056129A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087886A (en) * | 1992-12-10 | 1994-06-15 | 中国人民解放军海军工程设计研究局 | Coral concrete and compound method thereof |
| US5599599A (en) * | 1995-07-06 | 1997-02-04 | University Of Central Florida | Fiber reinforced plastic ("FRP")-concrete composite structural members |
| CN201649285U (en) * | 2010-02-02 | 2010-11-24 | 哈尔滨工业大学深圳研究生院 | FRP sectional steel sea-sand concrete component |
| CN104264903A (en) * | 2014-09-10 | 2015-01-07 | 哈尔滨工业大学深圳研究生院 | Overall sea concrete filled steel tube component and application method thereof |
| CN104328775A (en) * | 2014-10-22 | 2015-02-04 | 清华大学 | Seawater corrosion-resistance composite combination structure adopting seawater sea sand concrete |
| CN106149872A (en) * | 2016-07-05 | 2016-11-23 | 中国京冶工程技术有限公司 | A kind of advanced composite material (ACM) and coral concrete structural system and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962768A (en) * | 2020-09-11 | 2020-11-20 | 广东工业大学 | Multi-cavity composite material concrete special-shaped column |
| CN113175258A (en) * | 2021-04-16 | 2021-07-27 | 华中科技大学 | FRP pipe-FRP shear-resistant section bar-concrete combined member and application thereof |
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