CN205776727U - Double-layer aluminium alloy pipe and the combined member of sea sand RPC - Google Patents
Double-layer aluminium alloy pipe and the combined member of sea sand RPC Download PDFInfo
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- CN205776727U CN205776727U CN201620443556.2U CN201620443556U CN205776727U CN 205776727 U CN205776727 U CN 205776727U CN 201620443556 U CN201620443556 U CN 201620443556U CN 205776727 U CN205776727 U CN 205776727U
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- sea sand
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Abstract
This utility model relates to the combined member of a kind of double-layer aluminium alloy pipe and sea sand RPC, including outer aluminium-alloy pipe, the internal concentric of described outer aluminium-alloy pipe is provided with interior aluminium-alloy pipe, annular chamber is formed between described interior aluminium-alloy pipe and outer aluminium-alloy pipe, described annular chamber is provided with the aluminium alloy plate of putting more energy in order to interior aluminium-alloy pipe and outer aluminium-alloy pipe to be welded as a whole, described interior aluminium-alloy pipe and annular chamber have all poured sea sand RPC, the Chloride Attack that the superior corrosion resistance of aluminium alloy is possible to prevent in sea sand, this utility model can need not sea sand is carried out desalination process, marine sand concrete is made directly to use, be conducive to promoting the large-scale application of marine sand concrete, to reach to save river sand resource, the favourable benefit preserved the ecological environment.
Description
Technical field
This utility model provides the combined member of a kind of double-layer aluminium alloy pipe and sea sand RPC, belongs to engineering structure field.
Background technology
Civil engineering is always China as the industry of high energy consumption or even consumes the great industry of natural resources in the world.River sand resource as concrete fine aggregate is the deficientest in China at present; and use natural sea sand can alleviate, as the replacement scheme of fluvial sand, the problem that river sand resource is not enough in coastal area; be conducive to preserving the ecological environment, it is achieved the sustainable development of building industry.But, owing to steel can have been corroded by the chloride ion in sea sand, marine sand concrete application in Practical Project is the most greatly restricted.
Aluminium alloy is that a kind of resistance to corrosion is strong and the material of high-durability, has the superior ability resisting Chloride Attack especially.But the intensity of aluminum alloy materials is the most relatively low, as a example by 5A50 type anticorrosion aluminium alloy, its yield strength is as 265MPa, and compared to the yield strength of construction(al)steel generally at more than 345MPa, aluminum alloy materials also exists the defect that intensity is not enough.
RPC is a kind of novel high-strength high durability concrete.Owing to the addition of silicon ash (SiO2) and silica flour isoreactivity powder, its comprcssive strength can reach 200-800MPa, and its intensity of normal concrete compared to comprcssive strength generally 40-100MPa improves several times.Simultaneously as its aggregate size is little, interior porosity is low so that RPC has good density and durability, and the permeability of its chloride ion is only the 1/25 of common high-strength concrete.But RPC has significant brittle break feature when destroying, very unexpected during destruction, the most unfavorable to integrally-built safety.And RPC is applied strong constraint effect (such as steel tube confinement) is to improve its brittle break feature, improve the effective way of its moulding performance.
Utility model content
The purpose of this utility model is for above weak point, it is provided that a kind of double-layer aluminium alloy pipe and the combined member of sea sand RPC.
The scheme that this utility model solution technical problem is used is the combined member of a kind of double-layer aluminium alloy pipe and sea sand RPC, including outer aluminium-alloy pipe, the internal concentric of described outer aluminium-alloy pipe is provided with interior aluminium-alloy pipe, annular chamber is formed between described interior aluminium-alloy pipe and outer aluminium-alloy pipe, described annular chamber is provided with the aluminium alloy plate of putting more energy in order to interior aluminium-alloy pipe and outer aluminium-alloy pipe to be welded as a whole, described interior aluminium-alloy pipe and annular chamber have all poured sea sand RPC.
Further, described outer aluminium-alloy pipe and the tensile strength of interior aluminium-alloy pipe are more than 200MPa.
Further, the intensity of described sea sand RPC is 200-800Mpa, and its fine aggregate uses the natural sea sand processed without desalination.
Further, described interior aluminium-alloy pipe is circle with the cross sectional shape of outer aluminium-alloy pipe.
Further, described interior aluminium-alloy pipe is square with the cross sectional shape of outer aluminium-alloy pipe.
Further, the cross sectional shape of described interior aluminium-alloy pipe is circular, and the cross sectional shape of described outer aluminium-alloy pipe is square.
Further, aluminium alloy plate annular of putting more energy into described in is distributed in annular chamber.
Further, described in the put more energy into quantity of aluminium alloy plate be four, described annular chamber is separated into four district's lattice by four aluminium alloy plates of putting more energy into.
Compared with prior art, this utility model has the advantages that the Chloride Attack that the superior corrosion resistance of aluminium alloy is possible to prevent in sea sand, this utility model can need not sea sand is carried out desalination process, marine sand concrete is made directly to use, be conducive to promoting the large-scale application of marine sand concrete, to reach to save river sand resource, the favourable benefit preserved the ecological environment, simultaneously, reactive powder owing to adding greatly reduces the porosity of inside concrete, the infiltration of chloride ion in sea sand can be substantially reduced, so that this utility model has the durability of brilliance；In addition, this utility model utilizes the superhigh intensity of sea sand RPC to apply, to make up aluminium alloy, the defect that intensity is not enough in building structure, this combined member is made to have high-strength advantage, simultaneously, utilize aluminium-alloy pipe to the effect of contraction of sea sand RPC to improve its moulding performance, improve its original brittle break feature, improve the safety of works；The more important thing is, between interior aluminium-alloy pipe with outer aluminium-alloy pipe, weld aluminium alloy plate of putting more energy into further enhance its effect of contraction to sea sand RPC, this is owing to aluminium-alloy pipe easily occurs cripling when pressurized, this can reduce the effect of contraction to the core concrete that it wraps up, interior aluminium-alloy pipe in this utility model all has concrete support owing to pipe is inside and outside, therefore it is not susceptible to cripling phenomenon, but outer aluminium-alloy pipe is then susceptible to outside cripling.Therefore between interior aluminium-alloy pipe with outer aluminium-alloy pipe, weld aluminium alloy plate of putting more energy into become entirety, can be the effective support of outer aluminium-alloy pipe offer thus suppress the generation of its cripling, be greatly reinforced its effect of contraction to sea sand RPC.Additionally, the concrete between interior aluminium-alloy pipe and outer aluminium-alloy pipe is also divided into four district's lattice by four aluminium alloy plates of putting more energy into, this can be greatly enhanced the effect of contraction suffered by district's lattice inner concrete, thus be greatly improved its moulding performance, prevent structure generation brittle break；This utility model has the advantages such as high-strength, high-durability and high ductility concurrently, and is conducive to preserving the ecological environment；This utility model can be applied to the pillar in building, bridge pier in bridge and underground engineering structure etc. as main supporting member, is particularly suitable for the important feature thing of coastal area.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model patent is further illustrated.
Fig. 1 is the structural representation of this first embodiment of utility model；
Fig. 2 is the structural representation of this utility model the second embodiment；
Fig. 3 is the structural representation of this third embodiment of utility model；
In figure:
The outer aluminium-alloy pipe of 1-；Aluminium-alloy pipe in 2-；3-annular chamber；4-puts more energy into aluminium alloy plate；5-sea sand RPC.
Detailed description of the invention
With detailed description of the invention, this utility model is further illustrated below in conjunction with the accompanying drawings.
As Figure 1-3, a kind of double-layer aluminium alloy pipe and the combined member of sea sand RPC, including outer aluminium-alloy pipe 1, the internal concentric of described outer aluminium-alloy pipe is provided with interior aluminium-alloy pipe 2, annular chamber 3 is formed between described interior aluminium-alloy pipe and outer aluminium-alloy pipe, described annular chamber is provided with the aluminium alloy plate 4 of putting more energy in order to interior aluminium-alloy pipe and outer aluminium-alloy pipe to be welded as a whole, described interior aluminium-alloy pipe and annular chamber have all poured sea sand RPC 5.
In the present embodiment, described outer aluminium-alloy pipe and the tensile strength of interior aluminium-alloy pipe are more than 200MPa.
In the present embodiment, the intensity of described sea sand RPC is 200-800Mpa, and its fine aggregate uses the natural sea sand processed without desalination.
In the present embodiment, described interior aluminium-alloy pipe is circle with the cross sectional shape of outer aluminium-alloy pipe.
In the present embodiment, described interior aluminium-alloy pipe is square with the cross sectional shape of outer aluminium-alloy pipe.
In the present embodiment, the cross sectional shape of described interior aluminium-alloy pipe is circular, and the cross sectional shape of described outer aluminium-alloy pipe is square.
In the present embodiment, aluminium alloy plate annular of putting more energy into described in is distributed in annular chamber.
In the present embodiment, described in the put more energy into quantity of aluminium alloy plate be four, described annular chamber is separated into four district's lattice by four aluminium alloy plates of putting more energy into, and for square interior aluminium-alloy pipe or outer aluminium-alloy pipe, aluminium alloy plate of putting more energy into is welded on the middle part of each length of side.
In the present embodiment, described sea sand RPC is the RPC with the sea sand processed without desalination as raw material.
In the present embodiment, this double-layer aluminium alloy pipe comprises the following steps with the manufacture method of the combined member of sea sand RPC:
(1) aluminium-alloy pipe and outer aluminium-alloy pipe in first using the yield strengths such as the 5A50 type aluminum alloy materials more than 200MPa to make, add aluminium-alloy pipe in ensureing man-hour and arrange with outer aluminium-alloy pipe concentric；
(2) welding, in the annular chamber formed between interior aluminium-alloy pipe with outer aluminium-alloy pipe, the aluminium alloy plate of putting more energy into that multiple annular is uniform, interior aluminium-alloy pipe is welded as a whole through aluminium alloy plate of putting more energy into outer aluminium-alloy pipe；
(3) in interior aluminium-alloy pipe with annular chamber, sea sand RPC is poured; specification of aggregate is strictly controlled when pouring; guarantee that concrete can be poured in interior aluminium-alloy pipe and annular chamber uniformly, densely; use undressed natural sea sand as fine aggregate, and coordinate ratio requirements to add silicon grey (SiO2) and silica flour isoreactivity powder makes its intensity reach 200-800MPa by predetermined.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; it is it should be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. a double-layer aluminium alloy pipe and the combined member of sea sand RPC, it is characterized in that: include outer aluminium-alloy pipe, the internal concentric of described outer aluminium-alloy pipe is provided with interior aluminium-alloy pipe, annular chamber is formed between described interior aluminium-alloy pipe and outer aluminium-alloy pipe, described annular chamber is provided with the aluminium alloy plate of putting more energy in order to interior aluminium-alloy pipe and outer aluminium-alloy pipe to be welded as a whole, described interior aluminium-alloy pipe and annular chamber have all poured sea sand RPC.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that: described outer aluminium-alloy pipe is more than 200MPa with the tensile strength of interior aluminium-alloy pipe.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that: the intensity of described sea sand RPC is 200-800Mpa, and its fine aggregate uses the natural sea sand processed without desalination.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that: described interior aluminium-alloy pipe is circle with the cross sectional shape of outer aluminium-alloy pipe.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that: described interior aluminium-alloy pipe is square with the cross sectional shape of outer aluminium-alloy pipe.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that: the cross sectional shape of described interior aluminium-alloy pipe is circular, and the cross sectional shape of described outer aluminium-alloy pipe is square.
Double-layer aluminium alloy pipe the most according to claim 1 and the combined member of sea sand RPC, it is characterised in that aluminium alloy plate annular of putting more energy into described in: is distributed in annular chamber.
Double-layer aluminium alloy pipe the most according to claim 7 and the combined member of sea sand RPC, it is characterised in that the quantity of aluminium alloy plate of putting more energy into described in: is four, and described annular chamber is separated into four district's lattice by four aluminium alloy plates of putting more energy into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443556.2U CN205776727U (en) | 2016-05-17 | 2016-05-17 | Double-layer aluminium alloy pipe and the combined member of sea sand RPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443556.2U CN205776727U (en) | 2016-05-17 | 2016-05-17 | Double-layer aluminium alloy pipe and the combined member of sea sand RPC |
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| CN205776727U true CN205776727U (en) | 2016-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105821958A (en) * | 2016-05-17 | 2016-08-03 | 福建农林大学 | Double-layer aluminum alloy pipe and sea sand reactive powder concrete combined member and method thereof |
| CN106948550A (en) * | 2017-03-29 | 2017-07-14 | 广东工业大学 | A kind of FRP tube nucleus heart reinforcing bar sea sand concrete columns |
-
2016
- 2016-05-17 CN CN201620443556.2U patent/CN205776727U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105821958A (en) * | 2016-05-17 | 2016-08-03 | 福建农林大学 | Double-layer aluminum alloy pipe and sea sand reactive powder concrete combined member and method thereof |
| CN106948550A (en) * | 2017-03-29 | 2017-07-14 | 广东工业大学 | A kind of FRP tube nucleus heart reinforcing bar sea sand concrete columns |
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