CN105781013A - Aluminum alloy and concrete rectangular cross section combined beam - Google Patents
Aluminum alloy and concrete rectangular cross section combined beam Download PDFInfo
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- CN105781013A CN105781013A CN201610302028.XA CN201610302028A CN105781013A CN 105781013 A CN105781013 A CN 105781013A CN 201610302028 A CN201610302028 A CN 201610302028A CN 105781013 A CN105781013 A CN 105781013A
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- aluminum alloy
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
- E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an aluminum alloy and concrete rectangular cross section combined beam, which comprises an aluminum alloy beam, a connecting element and concrete, wherein the cross section of the aluminum alloy beam is in a rectangular shape; the connecting element is in a T shape and a reverse L shape; the connecting element is a part of the aluminum alloy beam; the concrete is cast on the upper part of the aluminum alloy beam, and is mechanically engaged with the connecting element. The aluminum alloy and concrete rectangular cross section combined beam can be used as a floor slab formwork supporter; the construction cost is reduced; the construction speed is high; the influence on the traffic is small; aluminum alloy does not need anti-corrosion treatment or later-stage maintenance; the structure is attractive; the additional decoration is not needed.
Description
Technical field
The invention belongs to new material with new architecture in applications in civil engineering field, specifically, relate to a kind of aluminium alloy and concrete rectangular section combination beam.
Background technology
Being a kind of most basic version at field of civil engineering central sill, conventional version has reinforced beam and section steel beam.Along with the development of Building technology, in order to give full play to concrete material comprcssive strength and the advantage of section steel material tensile strength, development defines steel-concrete composite beam again, and these several version beams have played great function in the evolution of building engineering field.But these several versions there is also some shortcomings, is mainly reflected in: reinforced beam deadweight is relatively big, and manufacturing process needs template, and concrete easily ftractures, and under poor environment, reinforcing bar easily corrodes, and affects the durability of structure；Steel construction durability is poor; need to carry out antirust treatment and periodic maintenance; need higher maintenance cost; work progress needs to carry out more welding and bolt connection; construction quality is affected bigger by site environment; workmen's labor intensity is high, and structure often can produce residual stress and residual deformation, conducts oneself with dignity bigger；Steel-concrete combined structure can better play the advantage of bi-material, but steel construction part to still suffer from welding procedure more, steel antirust treatment, especially for making the combination that steel construction and concrete are good, it is necessary to be welded with the problems such as a large amount of pegs.Therefore, research and development has new material and the new architecture of premium properties, is important research and the developing direction of building engineering field.
Summary of the invention
In view of this, the technical problem to be solved is that existing field of civil engineering center sill structure is from problem great, that structure durability is poor, construction cost is high.
In order to solve above-mentioned technical problem, the invention discloses a kind of aluminium alloy and concrete rectangular section combination beam, including: aluminum alloy beams, connector and concrete, described aluminum alloy beams cross section is rectangle；Described connector is T-shaped and inverted L-shaped, and described connector is a part for described aluminum alloy beams, and described concreting is in described aluminum alloy beams top, with described connector mechanical snap.
Further, hollow in described aluminum alloy beams.
Further, to be 6 be or 7 line aluminium alloy materials described aluminum alloy beams.
Further, described concrete intensity span is C25 to C40.
Further, described concrete utilizes described aluminium alloy rectangular cross section beam as supporting cast in situs.
Compared with prior art, the present invention can obtain and include techniques below effect:
The present invention as floorboard shuttering supporting, can save construction cost, and speed of application is fast, and dead load is light, aluminium alloy does not need preservative treatment and later maintenance, and structure is attractive in appearance, it is not necessary to additionally fit up.
Certainly, the arbitrary product implementing the present invention must be not necessarily required to reach all the above technique effect simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is aluminium alloy and the concrete rectangular section combination beam schematic cross-section of the embodiment of the present invention；
Fig. 2 is the aluminum alloy beams schematic cross-section of the embodiment of the present invention.
Detailed description of the invention
Describe embodiments of the present invention in detail below in conjunction with drawings and Examples, thereby the present invention how application technology means are solved technical problem and reaches the process that realizes of technology effect and can fully understand and implement according to this.
The invention discloses a kind of aluminium alloy and concrete rectangular section combination beam, as it is shown in figure 1, include: aluminum alloy beams 1, connector 2 and concrete 3, described aluminum alloy beams 1 cross section is rectangle；Described connector 2 is T-shaped and inverted L-shaped, and described connector 2 is a part for described aluminum alloy beams 1, and described concrete 3 is built in described aluminum alloy beams 1 top, with described connector 2 mechanical snap.
In the present embodiment, hollow in described aluminum alloy beams 1；Described aluminum alloy beams is 6 is or 7 line aluminium alloy materials, has the advantage that
1) lightweight, alloy aluminum density is 2.7g/cm3, is about the 1/3 of steel density.This advantage can reduce dead load, reduces structural load, reduces construction and installation labor intensity.Cross section is hollow section, is drawing district not have concrete, and structure stress is more reasonable, and construction weight is lighter.
2) intensity is high, and 6000 is intensity respectively 2000MPa-2600MPa and the 400MPa-500MPa of the aluminium alloy being with 7000, and 6000 is that intensity is suitable with Q235, and 7000 is be the twice of Q235 steel, is about 1.5 times of Q345 steel.
3) can be extruded.This is aluminium alloy topmost advantage relative to steel in processing.Extruded can produce hot rolling and welding institute not getable complex section section bar, it is possible to the form making member section is more reasonable, it is not necessary to weld.
4) corrosion resistance and good.Aluminium alloy its surface under the impact of air can be formed naturally layer of oxide layer.This layer of oxide layer prevents the corrosion of aluminium alloy to a great extent, thus aluminium alloy can be non-maintaining, and in relatively strong corrosive environment, opposite concrete structure, steel construction and steel performance have more advantage.
5) aluminium alloy has special gloss and texture, it is not necessary to special finishing can obtain good decorative effect.
6) price of aluminium alloy extrusions is about about 6 times of steel profile price, consider that the density of aluminum only has the 1/3 of steel, intensity is 1.5-2 times of steel, therefore consider dead load alleviate, construct convenient, need not support, reduce welding sequence and peg, non-maintaining expense and ornament materials etc., comprehensively there is advantage in aluminium alloy and concrete combined structure in price.
In the present embodiment, the intensity span of described concrete 3 is C25 to C40；Described concrete 3 utilizes described aluminum alloy beams 1 as supporting cast in situs.That is designed by the present invention is overall with concrete combination formation with the connector that aluminium alloy rectangular beam has a style of one's own, common stress, it is not necessary to additional weld stud as steel and concrete combination beam.By alloy aluminum and concrete mechanical snap, overcome the deficiency that single employing aluminum alloy beams rigidity is low, give full play to the advantage of bi-material, and organically combine with concrete floor structure.Alloy aluminum beam is designed to square-section can improve the anti-twisting property of beam, and girder steel to form square-section and need to increase more welding sequence.Hollow rectangle cross-sectional internal can as the passage of various strong, weak electricity pipelines.
Application example:
Adopting the present invention to build civil buildings building roof beam, beam span 4 meters, case bay 3.6 meters, beam is supported on masonry structure.Aluminium alloy adopts 6 series high-strength aluminum alloys, material condition yield strength 240MPa, elastic modelling quantity 70GPa, and concrete adopts C25 strength grade, and floor adopts cast in place concrete plate, thickness of slab 100mm.
1) cross section parameter according to described aluminum alloy beams fixed at the beginning of beam span, as depicted in figs. 1 and 2；
B=150mm, h=250mm, h1=200mm, a=6mm, s=15mm, c=200mm, h2=50mm, h3=100mm
2) by relevant load design specification value, computation structure design load；
3) described aluminum alloy beams base thickness degree d=120mm is calculated；
4) checking computations combination beam shearing strength and mid-span deflection；
5) described aluminium alloy rectangular cross section beam is selected according to described cross section parameter；
6) the checking computations bending resistance of construction stage aluminum alloy beams, shearing strength and mid-span deflection；
7) determine aluminum alloy beams length by beam span and bearing length, aluminum alloy beams is transported to scene and is fitted in place in the supporting construction of beam；
8) supporting as floor template with described aluminum alloy beams, template crossbeam props up on aluminum alloy beams, sets up floorboard template；
9) described concrete and floorslab concrete are built.
Can be seen that from above-mentioned application example, adopt the technology of the present invention, aluminum alloy beams is plant produced (or adopting the serial approved product of the present invention), aluminum alloy beams can be extruded, convenient formation reasonable stress cross section, the extruded section bar that can produce the not getable complex section of hot rolling and welding institute, it is possible to making the form of member section more rationally, this is also that steel beam structure is difficult to.Owing to dead load is light, facilitates erected on site, labor intensity can be saved.Aluminum alloy beams as floorboard shuttering supporting, can save construction cost, and speed of application is fast, affects traffic little, and aluminium alloy does not need preservative treatment and later maintenance, and structure is attractive in appearance, it is not necessary to additionally fit up.
It can further be stated that, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the commodity of a series of key element or system not only includes those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this commodity or system.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in the commodity including described key element or system.
Described above illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change are without departing from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (5)
1. an aluminium alloy and concrete rectangular section combination beam, it is characterised in that including: aluminum alloy beams, connector and concrete, described aluminum alloy beams cross section is rectangle；Described connector is T-shaped and inverted L-shaped, and described connector is a part for described aluminum alloy beams, and described concreting is in described aluminum alloy beams top, with described connector mechanical snap.
2. aluminium alloy as claimed in claim 1 and concrete rectangular section combination beam, it is characterised in that hollow in described aluminum alloy beams.
3. aluminium alloy as claimed in claim 1 and concrete rectangular section combination beam, it is characterised in that described aluminum alloy beams is 6 is or 7 line aluminium alloy materials.
4. aluminium alloy as claimed in claim 1 and concrete rectangular section combination beam, it is characterised in that described concrete intensity span is C25 to C40.
5. aluminium alloy as claimed in claim 1 and concrete rectangular section combination beam, it is characterised in that described concrete utilizes described aluminum alloy beams as supporting cast in situs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302028.XA CN105781013A (en) | 2016-05-09 | 2016-05-09 | Aluminum alloy and concrete rectangular cross section combined beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610302028.XA CN105781013A (en) | 2016-05-09 | 2016-05-09 | Aluminum alloy and concrete rectangular cross section combined beam |
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| CN105781013A true CN105781013A (en) | 2016-07-20 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20030086531A (en) * | 2003-10-17 | 2003-11-10 | (주)센구조연구소 | Formed Steel Plate Concrete Beam |
| CN1553014A (en) * | 2003-05-29 | 2004-12-08 | 株式会社大宇建设 | Steel concrete assembled beam by asymmetric section steel beam |
| CN1766252A (en) * | 2005-11-22 | 2006-05-03 | 南京工业大学 | Novel steel-concrete combined beam |
| CN103437500A (en) * | 2013-09-16 | 2013-12-11 | 南京工业大学 | C-shaped steel-concrete combined compression flange and corrugated web combined box girder |
| CN204609125U (en) * | 2015-05-21 | 2015-09-02 | 国家电网公司 | A kind of novel aluminum alloy-concrete combination beam |
| CN105155774A (en) * | 2015-08-10 | 2015-12-16 | 河海大学 | Duplex channel steel and recycled concrete combination beam |
| CN205604582U (en) * | 2016-05-09 | 2016-09-28 | 广西大学 | Aluminum alloy and concrete rectangular cross section combination beam |
-
2016
- 2016-05-09 CN CN201610302028.XA patent/CN105781013A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553014A (en) * | 2003-05-29 | 2004-12-08 | 株式会社大宇建设 | Steel concrete assembled beam by asymmetric section steel beam |
| KR20030086531A (en) * | 2003-10-17 | 2003-11-10 | (주)센구조연구소 | Formed Steel Plate Concrete Beam |
| CN1766252A (en) * | 2005-11-22 | 2006-05-03 | 南京工业大学 | Novel steel-concrete combined beam |
| CN103437500A (en) * | 2013-09-16 | 2013-12-11 | 南京工业大学 | C-shaped steel-concrete combined compression flange and corrugated web combined box girder |
| CN204609125U (en) * | 2015-05-21 | 2015-09-02 | 国家电网公司 | A kind of novel aluminum alloy-concrete combination beam |
| CN105155774A (en) * | 2015-08-10 | 2015-12-16 | 河海大学 | Duplex channel steel and recycled concrete combination beam |
| CN205604582U (en) * | 2016-05-09 | 2016-09-28 | 广西大学 | Aluminum alloy and concrete rectangular cross section combination beam |
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Application publication date: 20160720 |
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