CN104975680A - Novel aluminum alloy-concrete combined beam - Google Patents
Novel aluminum alloy-concrete combined beam Download PDFInfo
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- CN104975680A CN104975680A CN201510261211.5A CN201510261211A CN104975680A CN 104975680 A CN104975680 A CN 104975680A CN 201510261211 A CN201510261211 A CN 201510261211A CN 104975680 A CN104975680 A CN 104975680A
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- aluminium alloy
- cavity
- aluminum alloy
- alloy extrusions
- concrete
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 63
- 238000001125 extrusion Methods 0.000 claims description 61
- 150000001875 compounds Chemical class 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 5
- 238000010008 shearing Methods 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides a novel aluminum alloy-concrete combined beam, and relates to a beam. The existing steel-concrete beam consists of an I-shaped beam or a box-shaped beam, an anti-shearing connecting element and a concrete slab cast on the top of the steel beam, and cannot simultaneously realize the anti-shearing force and the durability. The novel aluminum alloy-concrete combined beam comprises an aluminum alloy sectional material with a cavity, wherein the aluminum alloy sectional material is in a T shape or in a shape like a Chinese character 'ri', and is divided into an upper part and a lower part; the upper part is wider than the lower part; the upper part of the aluminum alloy sectional material is provided with a plurality of cavities; and the cavities of the upper part of the aluminum alloy sectional material are filled with concrete. The technical scheme has the advantages that the pressure-resistant capability of the concrete and good ductibility of the aluminum alloy sectional material are sufficiently realized; the strength and the force bearing capability of the beam are effectively improved; the problems that the combined beam has many welding processes, and the concrete slab can easily crack are solved; and good durability, economic performance and durability are realized.
Description
Technical field
The present invention relates to a kind of beam, particularly relate to a kind of novel aluminum alloy-concrete combination beam.
Background technology
The concrete slab that existing steel-concrete beam consists of i beam or box beam, shear connector and builds in girder steel top, due to the shaping inapplicable extrusion forming process of girder steel, processing needs welding, therefore the simple cross section of I-shaped or box can only be formed, concrete slab and girder steel only have one side to be connected, and shear connections is not enough, needs shear connector, outside concrete slab is exposed to, the crack easily produced can cause endurance issues.Therefore, how to improve the ability of compound beam component resist torque, for raising building structure performance and durability significant.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition carries out improving to prior art and improves, and provides a kind of novel aluminum alloy-concrete combination beam, to reach the object improving building structure performance and durability.For this reason, the present invention takes following technical scheme.
A kind of novel aluminum alloy-concrete combination beam, it is characterized in that: the aluminium alloy extrusions comprising band cavity, described aluminium alloy extrusions is in " T " or " day " shape, be divided into top and bottom, described top wider than or etc. wider than bottom, aluminium alloy extrusions top is provided with multiple cavity, fill concrete in the cavity on aluminium alloy extrusions top.The cavity on aluminium alloy extrusions top is divided into multiple little cavity, fill concrete in little cavity, can reduce concrete expansion force, avoids the stressed cracking of aluminium alloy extrusions.The bending resistance of aluminium alloy extrusions is effectively improved in the bottom to lower convexity of aluminium alloy extrusions, gives full play to concrete anti-pressure ability, and the ductility that aluminium alloy extrusions is good, effectively improves intensity, the load ability of beam.During use, compound beam is generally two end supports, and pressure is born on the top of compound beam, and pulling force is born in bottom, concrete anti-pressure ability is better than resistance to tension, the cavity of bottom can not fill concrete, to reduce the weight of compound beam, improves load ability, constructability, due to without the need to fill concrete, the distortion of compound beam can be reduced, reduce costs simultaneously.
As improving further and supplementing technique scheme, the present invention also comprises following additional technical feature.
Aluminium alloy extrusions one extrusion molding with multiple cavity.Easy to process, can be mass, reduce cost of production.
The cross-sectional area of described cavity accounts for 1/3 to 2/3 of compound beam cross-sectional area.
Described cavity cross section is square, the thickness of aluminium alloy extrusions be cavity maximal side 1/5 and more than.Reduce the wall thickness difference of aluminium alloy extrusions, be convenient to processing.
Described aluminium alloy extrusions top is provided with four cavitys side by side, and described aluminium alloy extrusions bottom is provided with a cavity, the cavity not fill concrete of aluminium alloy extrusions bottom.Be conducive to improving intensity, reduce distortion, and reduce cost of production.
Uniform four the identical cavitys in aluminium alloy extrusions top, the cavity of aluminium alloy extrusions bottom is more than or equal to the cavity on aluminium alloy extrusions top.
Aluminium alloy extrusions lower width is 1/2 of upper width---1/4; The height of alloy profile bottom is more than or equal to the height on alloy profile top.Improve the bending resistance of aluminium alloys.
Beneficial effect: it is more that the present invention can effectively solve compound beam welding procedure, the problem that concrete slab easily ftractures, and aluminium alloys has good durability, be applicable to bear in the beam-type member of Moment, there is good economy and applicability, effectively improve building structure performance and durability.The cavity on aluminium alloy extrusions top is divided into multiple little cavity, fill concrete in little cavity, can reduce concrete expansion force, avoids the stressed cracking of aluminium alloy extrusions.The bending resistance of aluminium alloy extrusions is effectively improved in the bottom to lower convexity of aluminium alloy extrusions, gives full play to concrete anti-pressure ability, and the ductility that aluminium alloy extrusions is good, effectively improves intensity, the load ability of beam.During use, compound beam is generally two end supports, and pressure is born on the top of compound beam, and pulling force is born in bottom, concrete anti-pressure ability is better than resistance to tension, the cavity of bottom can not fill concrete, to reduce the weight of compound beam, improves load ability, constructability, due to without the need to fill concrete, the distortion of compound beam can be reduced, reduce costs simultaneously.
Accompanying drawing explanation
Fig. 1 is the first structural representation of the present invention.
Fig. 2 is the second structural representation of the present invention.
Fig. 3 is the third structural representation of the present invention.
In figure: 1-aluminium alloy extrusions; 2-concrete.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
Embodiment one: as shown in Figure 1, the technical program comprises the aluminium alloy extrusions 1 of band cavity, and described aluminium alloy extrusions 1 is in "T"-shaped, be divided into top and bottom, described top is wider than bottom, and aluminium alloy extrusions 1 top is provided with multiple cavity, fill concrete 2 in the cavity on aluminium alloy extrusions 1 top.Aluminium alloy extrusions 1 one extrusion molding with multiple cavity.
For taking into account intensity and cost of production, described aluminium alloy extrusions 1 top is provided with four cavitys side by side, and described aluminium alloy extrusions 1 bottom is provided with a cavity, the cavity not fill concrete 2 of aluminium alloy extrusions 1 bottom; Aluminium alloy extrusions 1 one extrusion molding with multiple cavity.Wherein, the cross-sectional area of cavity accounts for 1/3 to 2/3 of compound beam cross-sectional area; Aluminium alloy extrusions 1 lower width is 1/2 of upper width---1/4; The height of alloy profile 1 bottom is more than or equal to the height on alloy profile 1 top.
Cavity cross section can be rounded, square etc., and for taking into account cost, shear resistance, cavity cross section is square, and reduces the wall thickness difference of aluminium alloy extrusions 1, decreases the generation of the phenomenon such as to break in process, be convenient to processing.
The thickness of aluminium alloy extrusions 1 be cavity maximal side 1/5 and more than, favourable ability and the durability that ensure that compound beam resist torque.
Embodiment two:
Be that aluminium alloy extrusions 1 is in " day " shape with embodiment one difference, aluminium alloy extrusions 1 top and bottom wide, one or more cavity is offered in aluminium alloy extrusions 1 bottom, the cavity on aluminium alloy extrusions 1 top and the cavity of aluminium alloy extrusions 1 bottom are staggered, as shown in Figure 2, or be set up in parallel, as shown in Figure 3.Aluminium alloy extrusions 1 can further improve the intensity of compound beam in " day " shape, increase load ability.
A kind of novel aluminum alloy-concrete combination beam shown in above Fig. 1,2,3 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress are embodied; can according to the use needs of reality; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection domain of this programme.
Claims (7)
1. novel aluminum alloy-concrete combination beam, it is characterized in that: the aluminium alloy extrusions (1) comprising band cavity, described aluminium alloy extrusions (1) is in " T " or " day " shape, be divided into top and bottom, described top wider than or etc. wider than bottom, aluminium alloy extrusions (1) top is provided with multiple cavity, fill concrete (2) in the cavity on aluminium alloy extrusions (1) top.
2. a kind of novel aluminum alloy-concrete combination beam according to claim 1, is characterized in that: aluminium alloy extrusions (1) the one extrusion molding with multiple cavity.
3. a kind of novel aluminum alloy-concrete combination beam according to claim 2, is characterized in that: the cross-sectional area of described cavity accounts for 1/3 to 2/3 of compound beam cross-sectional area.
4. a kind of novel aluminum alloy-concrete combination beam according to claim 3, is characterized in that: described cavity cross section is square, the thickness of aluminium alloy extrusions (1) be cavity maximal side 1/5 and more than.
5. a kind of novel aluminum alloy-concrete combination beam according to claim 4, it is characterized in that: described aluminium alloy extrusions (1) top is provided with four cavitys side by side, described aluminium alloy extrusions (1) bottom is provided with a cavity, the cavity not fill concrete (2) of aluminium alloy extrusions (1) bottom.
6. a kind of novel aluminum alloy-concrete combination beam according to claim 5, it is characterized in that: uniform four the identical cavitys in aluminium alloy extrusions (1) top, the cavity of aluminium alloy extrusions (1) bottom is more than or equal to the cavity on aluminium alloy extrusions (1) top.
7. a kind of novel aluminum alloy-concrete combination beam according to claim 5, is characterized in that: aluminium alloy extrusions (1) lower width is 1/2 ~ 1/4 of upper width; The height of alloy profile (1) bottom is more than or equal to the height on alloy profile (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261211.5A CN104975680A (en) | 2015-05-21 | 2015-05-21 | Novel aluminum alloy-concrete combined beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261211.5A CN104975680A (en) | 2015-05-21 | 2015-05-21 | Novel aluminum alloy-concrete combined beam |
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| Publication Number | Publication Date |
|---|---|
| CN104975680A true CN104975680A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510261211.5A Pending CN104975680A (en) | 2015-05-21 | 2015-05-21 | Novel aluminum alloy-concrete combined beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | One kind sets two-way shear connector FRP box section concrete combination beams |
-
2015
- 2015-05-21 CN CN201510261211.5A patent/CN104975680A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | One kind sets two-way shear connector FRP box section concrete combination beams |
| CN106836639B (en) * | 2017-04-11 | 2022-09-23 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
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Application publication date: 20151014 |