Large-span steel-aluminum combined cross beam

Abstract

The invention discloses a large-span steel-aluminum combined cross beam, and relates to the technical field of building curtain wall structure connection. The large-span steel-aluminum combined cross beam comprises overhanging steel cross beams and an aluminum alloy cross beam, and the overhanging steel cross beams are located at the two ends of the aluminum alloy cross beam and connected with the two ends of the aluminum alloy cross beam; the aluminum alloy cross beam comprises an outdoor side sunshade decoration profile and an indoor side curtain wall profile, and the outdoor side sunshade decoration profile and the indoor side curtain wall profile are detachably connected. The large-span curtain wall structure system has multiple functions of structure supporting, decoration and sun shading, the problems that a traditional large-span curtain wall structure system is large in steel consumption, large in dead weight, poor in installation precision, large in construction difficulty and the like can be effectively solved, the production cost is greatly saved, the construction efficiency is improved, the construction safety and quality are guaranteed, and the large-span curtain wall structure system has wide application prospects and market prospects.

Description

Technical Field

[0001] The invention relates to the technical field of building curtain wall structure connection, and in particular to a large-span steel-aluminum composite cross beam. Background Art

[0002] With the development of curtain wall technology and the popularization of curtain wall products in large public buildings (such as exhibition centers, airports, stadiums, etc.), in order to obtain good lighting performance and transparent vision, the application of large-span curtain walls is becoming more and more extensive. How to better solve the problem of the force system of large-span curtain walls while ensuring the visual effect of the building is the common goal pursued by architects and curtain wall designers. In the current curtain wall industry, steel and aluminum are widely used as supporting keels, and the existing large-span building curtain wall design schemes usually use large-sized square steel pipes, round steel pipes or H-shaped steels with vertical load-bearing cables as the structural force system, which has problems such as large steel consumption, heavy weight, easy deformation during processing, and poor installation accuracy.

[0003] However, the combination of steel and aluminum in large-span curtain walls can complement each other, significantly reduce the deadweight of the structure, and effectively control the deformation of the structure. However, this keel system is rarely used in actual applications. Usually, the architectural appearance of large-span curtain walls has the characteristics of structural transparency and sense of lines. Therefore, after using H-shaped steel, it is still necessary to wrap it with an aluminum alloy skin, which is costly, has a large deadweight, and is cumbersome to install. In addition, the 18m span steel keel needs to be specially customized, and the production cycle is long, which does not meet the construction progress requirements. The vertical load-bearing cables used in conjunction need to be tensioned to form a stable structural system. The curtain wall construction process is complicated, and factors such as the tensioning sequence of the cables, the deformation of the anchors at the tensioning end, and the structural creep of the building will cause the prestress loss to gradually increase, posing a safety hazard. Traditional large-span curtain wall technology does not fully utilize the material properties, has a long production cycle, and is difficult to guarantee the construction quality, posing a safety hazard. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a large-span steel-aluminum composite beam, which combines steel and aluminum and adopts a detachable large-span composite cross-section aluminum alloy beam, so that the beam has multiple functions of structural support, decoration, and shading, and effectively solves the problems of traditional large-span curtain wall structure systems such as large steel consumption, heavy weight, poor installation accuracy and great construction difficulty.

[0005] The present invention provides the following technical solutions:

[0006] The present invention proposes a large-span steel-aluminum composite beam, comprising a cantilevered steel beam and an aluminum alloy beam, wherein the cantilevered steel beam is located at both ends of the aluminum alloy beam and is connected to both ends of the aluminum alloy beam; the aluminum alloy beam comprises an outdoor sunshade decorative profile and an indoor curtain wall profile, and the outdoor sunshade decorative profile and the indoor curtain wall profile are detachably connected.

[0007] Furthermore, the outdoor sunshade decorative profile and the indoor curtain wall profile are connected by a first bolt.

[0008] Furthermore, a plurality of the first bolts are arranged at equal intervals.

[0009] Preferably, the spacing between the plurality of first bolts is 600 mm.

[0010] Preferably, the first bolt is an M10 stainless steel bolt.

[0011] Furthermore, the cantilever steel beam is an H-shaped steel beam, the web of one end of the H-shaped steel beam connected to the aluminum alloy beam extends outward to form a web extension plate, the web extension plate is inserted in the aluminum alloy beam, and the H-shaped steel beam is connected to the aluminum alloy beam through the web extension plate.

[0012] Furthermore, the web extension plate has a thickness of not less than 10 mm, a width of not less than 220 mm, and a depth of insertion into the aluminum alloy cross beam of not less than 250 mm.

[0013] Furthermore, the web extension plate is fixedly connected to the aluminum alloy cross beam by a second bolt.

[0014] Furthermore, the second bolts are arranged along the thickness direction of the web extension plate, a plurality of the second bolts are provided, and the plurality of second bolts are arranged at equal intervals.

[0015] Preferably, the second bolts are arranged in at least two rows, and the spacing between the second bolts in each row is 100 mm.

[0016] Furthermore, a buckle cover is installed at the bottom of the outer sunshade decorative profile.

[0017] Furthermore, it also includes a tie rod assembly, which includes a tie rod and a tie rod connecting sleeve, and the tie rod connecting sleeve is sleeved on the outside of the tie rod; a through hole is provided on the aluminum alloy beam in the vertical direction, the tie rod is inserted into the through hole, and the tie rod connecting sleeve is arranged below the through hole.

[0018] Preferably, a plurality of the pull rod assemblies are arranged at equal intervals.

[0019] Preferably, the through hole is a large circular hole, and the diameter of the large circular hole is at least 4 mm larger than the diameter of the pull rod.

[0020] Preferably, a glass temporary fixing block is further provided on the interior side curtain wall profile, and the glass temporary fixing block is located below the through hole.

[0021] Furthermore, the large-span steel-aluminum composite beam of the present invention is used for installing a large span of a curtain wall. A plurality of steel-aluminum composite beams are arranged in parallel, and the tie rod assembly can connect the plurality of large-span steel-aluminum composite beams in series in sections. The tie rod connecting sleeve is arranged below the through hole, which is convenient for the tie rod to be installed and adjusted in sections, and at the same time, the pre-arching condition of the large-span steel-aluminum composite beam can be controlled.

[0022] The present invention has the following beneficial technical effects:

[0023] The present invention has a simple and reasonable structure. By connecting the cantilevered steel beams at both ends of the aluminum alloy beam, a keel system combining steel and aluminum is formed. At the same time, a detachable combined aluminum alloy beam is used, which can effectively solve the problems of large steel consumption, heavy weight, poor installation accuracy and great construction difficulty of the traditional large-span curtain wall structure system; the present invention takes into account the multiple functions of structural support, decoration and sunshade, greatly saves production costs, improves construction efficiency, ensures construction safety and quality, and has broad application prospects and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The overall layout diagram of the large-span steel-aluminum composite cross beam provided by the present invention.

[0026] Figure 2 This is a schematic diagram of the installation of the aluminum alloy beam provided by the present invention.

[0027] Figure 3 This is a schematic diagram of the aluminum alloy beam structure provided by the present invention.

[0028] Figure 4 This is a schematic diagram of the connection structure of the cantilever steel beam and the aluminum alloy beam provided by the present invention.

[0029] Figure 5 This is a schematic diagram from another angle of the connection structure of the cantilever steel beam and the aluminum alloy beam provided by the present invention.

[0030] Figure 6 This is a schematic diagram of the installation of the aluminum alloy crossbeam and connecting rod assembly provided by the present invention.

[0031] Description of the symbols in the figure:

[0032] 1-three-dimensional structural column; 2-cantilevered steel beam; 201-web extension plate; 3-aluminum alloy beam; 301-outdoor sunshade decorative profile; 302-indoor curtain wall profile; 4-through hole; 5-tie rod; 6-tie rod connecting sleeve; 7-temporary glass fixing block; 8-buckle cover; 9-first bolt; 10-second bolt; 11-glass. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1-3The large-span steel-aluminum composite beam shown includes a cantilevered steel beam 2 and an aluminum alloy beam 3. The cantilevered steel beam 2 is located at both ends of the aluminum alloy beam 3 and is connected to both ends of the aluminum alloy beam 3. The aluminum alloy beam 3 includes an outdoor sunshade decorative profile 301 installed on the outside of the glass 11 and an indoor curtain wall profile 302 installed on the inside of the glass 11. The outdoor sunshade decorative profile 301 and the indoor curtain wall profile 302 are detachably connected and cooperate in force as a whole.

[0038] Specifically, the large-span steel-aluminum composite cross beam is installed between two three-dimensional structural columns 1 , the distance between the two three-dimensional structural columns 1 is 18 m, and the cantilevered steel cross beam 2 is connected to the three-dimensional structural columns 1 .

[0039] Specifically, in this embodiment, the lengths of the cantilevered steel beams 2 at both ends of the aluminum alloy beam 3 respectively account for 1 / 6 of the total length of the long-span steel-aluminum composite beam, and the length of the aluminum alloy beam 3 accounts for 2 / 3 of the total length of the long-span steel-aluminum composite beam.

[0040] Specifically, the outdoor sunshade decorative profile 301 and the indoor curtain wall profile 302 are connected by a plurality of equally spaced first bolts 9. The first bolts 9 are M10 stainless steel bolts.

[0041] Specifically, in this embodiment, the distance between two adjacent first bolts 9 is 600 mm.

[0042] For more details, please refer to Figure 4-5 The cantilevered steel beam 2 is an H-shaped steel beam. A web extension plate 201 is provided at one end of the H-shaped steel beam connected to the aluminum alloy beam 3. The web extension plate 201 is inserted into the aluminum alloy beam 3. The H-shaped steel beam is connected to the aluminum alloy beam 3 through the web extension plate 201, and is fixed by a second bolt 10 arranged along the thickness direction of the web extension plate 201, thereby forming a keel system that combines steel and aluminum materials. The advantage of the light weight of the aluminum profile can be used to greatly reduce the dead weight of the structure, and the rigidity of the steel can be used to effectively control the deformation of the structure.

[0043] Specifically, in this embodiment, the web extension plate 201 is obtained by extending the web of the H-shaped steel beam outwardly, and the web extension plate 201 has a thickness of 10 mm, a width of 220 mm, and a depth of 250 mm when inserted into the aluminum alloy cross beam 3 .

[0044] Specifically, in this embodiment, the second bolts 10 are arranged in two rows, with four second bolts in each row, and the distance between the second bolts 10 in each row is 100 mm.

[0045] Specifically, a buckle cover 8 is installed at the bottom of the outer sunshade decorative profile. The buckle cover 8 is detachably installed at the bottom of the outer sunshade decorative profile to close the connection between the outdoor sunshade decorative profile 301 and the indoor curtain wall profile 302.

[0046] Preferably, in some embodiments, the buckle cover 8 can abut against the glass 11 and serve as a glass pressure plate for fixing the glass 11 .

[0047] For more details, please refer to Figure 6 The large-span steel-aluminum composite beam of this embodiment also includes a tie rod assembly, which includes a tie rod 5 and a tie rod connecting sleeve 6, and the tie rod connecting sleeve 6 is sleeved on the outside of the tie rod 5; a through hole 4 is provided on the aluminum alloy beam 3 along the vertical direction, the tie rod 5 is inserted into the through hole 4, and the tie rod connecting sleeve 6 is arranged below the through hole 4. In this embodiment, a plurality of large-span steel-aluminum composite beams are arranged in parallel, and the tie rod assembly can connect a plurality of large-span steel-aluminum composite beams in series in sections, and at the same time, the tie rod 5 can bear the vertical load. The tie rod connecting sleeve 6 is arranged below the through hole 4, which is convenient for the tie rod 5 to be installed and adjusted in sections, and at the same time, the pre-arching of the large-span steel-aluminum composite beam can be controlled.

[0048] Specifically, the tie rod assembly is arranged in the partition gap of the glass 11. The glass 11 plate is a horizontally long strip-shaped grid-shaped simply supported plate with upper and lower opposite sides.

[0049] Preferably, in this embodiment, the through hole 4 is a large circular hole, and the diameter of the large circular hole is 4 mm larger than the diameter of the pull rod 5 .

[0050] Preferably, in this embodiment, a glass temporary fixing pressing block 7 is further provided on the indoor curtain wall profile 302 , and the glass temporary fixing pressing block 7 is located below the through hole 4 .

[0051] Specifically, when installing the aluminum alloy beam 3 of the present invention, the indoor curtain wall profile 302 is installed first, and then the outdoor sunshade decorative profile 301 is fastened to the indoor curtain wall profile 302 through the first bolt 9. After the pull rod 5 and the glass 11 are installed in place, the outdoor buckle cover 8 is finally buckled to complete the installation.

[0052] Specifically, the large-span steel-aluminum composite beams of this embodiment are used for curtain wall installation. Several parallel composite beams are connected in series in sections by vertical load-bearing tie rods 5 hidden in the glass 11 partition joints. The glass 11 panels are simply supported panels with upper and lower opposite sides of horizontal long strip partition sizes.

[0053] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A long-span steel-aluminum composite beam, characterized in that: It includes a cantilevered steel beam and an aluminum alloy beam, wherein the cantilevered steel beam is located at both ends of the aluminum alloy beam and is connected to both ends of the aluminum alloy beam; the aluminum alloy beam includes an outdoor sunshade decorative profile and an indoor curtain wall profile, and the outdoor sunshade decorative profile and the indoor curtain wall profile are detachably connected.

2. The long-span steel-aluminum composite beam according to claim 1, characterized in that: The outdoor sunshade decorative profile and the indoor curtain wall profile are connected by a first bolt.

3. The long-span steel-aluminum composite beam according to claim 2, characterized in that: A plurality of first bolts are arranged at equal intervals.

4. The long-span steel-aluminum composite beam according to claim 1, characterized in that: The cantilever steel beam is an H-shaped steel beam, and one end of the H-shaped steel beam connected to the aluminum alloy beam is provided with a web extension plate, the web extension plate is inserted in the aluminum alloy beam, and the H-shaped steel beam is connected to the aluminum alloy beam through the web extension plate.

5. The long-span steel-aluminum composite beam according to claim 4, characterized in that: The web extension plate has a thickness of not less than 10 mm, a width of not less than 220 mm, and a depth of insertion into the aluminum alloy cross beam of not less than 250 mm.

6. The long-span steel-aluminum composite beam according to claim 5, characterized in that: The web extension plate is fixedly connected to the aluminum alloy cross beam via a second bolt.

7. The long-span steel-aluminum composite beam according to claim 6, characterized in that: The second bolts are arranged along the thickness direction of the web extension plate, and a plurality of the second bolts are provided, and the plurality of second bolts are arranged at equal intervals.

8. The long-span steel-aluminum composite beam according to claim 1, characterized in that: A buckle cover is installed at the bottom of the outer sunshade decorative profile.

9. The long-span steel-aluminum composite beam according to any one of claims 1 to 8, characterized in that: It also includes a pull rod assembly, which includes a pull rod and a pull rod connecting sleeve, and the pull rod connecting sleeve is sleeved on the outside of the pull rod; a through hole is provided on the aluminum alloy crossbeam in the vertical direction, the pull rod is inserted into the through hole, and the pull rod connecting sleeve is arranged below the through hole.

10. The long-span steel-aluminum composite beam according to claim 9, characterized in that: The through hole is a large circular hole, and the diameter of the large circular hole is at least 4 mm larger than the diameter of the pull rod.

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