Large-span steel-aluminum combined cross beam

Abstract

The utility model 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 system has multiple functions of structure supporting, decoration and sun shading, can effectively solve the problems that a traditional large-span curtain wall structure system is large in steel consumption, large in dead weight, poor in installation accuracy, large in construction difficulty and the like, greatly saves production cost, improves construction efficiency, guarantees construction safety and quality, and is suitable for popularization and application. Wide application prospects and market prospects are realized.

Description

Technical Field

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

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

[0003] However, combining steel and aluminum in large-span curtain walls can complement each other, significantly reducing the structure's deadweight while effectively controlling structural deformation. However, this keel system is rarely used in practice. The architectural appearance of large-span curtain walls typically combines structural transparency with a sense of linearity. Therefore, even after using H-shaped steel, it still needs to be covered with an aluminum alloy outer skin, which is costly, heavy, and cumbersome to install. Furthermore, the 18m span steel keel requires special customization, resulting in a long production cycle and not meeting construction schedule requirements. The vertical load-bearing cables used in conjunction need to be tensioned to form a stable structural system, making curtain wall construction complex. Furthermore, factors such as the tensioning sequence of the cables, deformation of the anchors at the tensioning ends, and structural creep of the building can lead to a gradual increase in prestress loss, posing a safety hazard. Traditional large-span curtain wall technology does not fully utilize material properties, has a long production cycle, and construction quality cannot be guaranteed, posing a safety hazard. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a large-span steel-aluminum composite beam, which combines steel and aluminum materials and adopts a detachable large-span composite cross-section aluminum alloy beam, so that the beam can take into account the multiple functions of structural support, decoration, and sunshade, 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 utility model provides the following technical solutions:

[0006] The utility model proposes a large-span steel-aluminum composite beam, which includes a cantilevered steel beam and an aluminum alloy beam. 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.

[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 provided 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 cantilevered steel beam is an H-shaped steel beam, and the web at one end of the H-shaped steel beam connected to the aluminum alloy beam extends outward to form a web extension plate, and the web extension plate is inserted into 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 not less than 250 mm when inserted into the aluminum alloy beam.

[0013] Furthermore, the web extension plate is fixedly connected to the aluminum alloy crossbeam via 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 provided 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 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 beam in the vertical direction, the pull rod is passed through the through hole, and the pull rod connecting sleeve is arranged below the through hole.

[0018] Preferably, a plurality of the pull rod assemblies are provided 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, the interior side curtain wall profile is further provided with a glass temporary fixing block, and the glass temporary fixing block is located below the through hole.

[0021] Furthermore, the long-span steel-aluminum composite crossbeam of the present invention is used for installing large spans in curtain walls. Multiple steel-aluminum composite crossbeams are arranged in parallel, and the tie rod assembly can connect these long-span steel-aluminum composite crossbeams in series in sections. Tie rod connecting sleeves are positioned below the through-holes, facilitating segmented installation and adjustment of the tie rods while also controlling the pre-camber of the long-span steel-aluminum composite crossbeams.

[0022] The utility model has the following beneficial technical effects:

[0023] This new structure is simple and reasonable. By connecting the cantilevered steel beams at both ends of the aluminum alloy beam, a keel system that combines steel and aluminum is formed. At the same time, the use of detachable composite aluminum alloy beams can effectively solve the problems of traditional large-span curtain wall structures such as large steel consumption, heavy weight, poor installation accuracy, and great construction difficulty. This new structure combines the multiple functions of structural support, decoration, and sunshade, greatly saving production costs, improving construction efficiency, ensuring 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 is a brief introduction to 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 any creative work.

[0025] Figure 1 This is the overall layout diagram of the large-span steel-aluminum composite beam provided by the utility model.

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

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

[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 utility model.

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

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

[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-Exterior sunshade decorative profile; 302-Interior 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 following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups 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., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0036] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the 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 work together to bear force as a whole.

[0038] Specifically, the large-span steel-aluminum composite crossbeam 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 crossbeam 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 each 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 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 setting a second bolt 10 along the thickness direction of the web extension plate 201, thereby forming a keel system that combines steel and aluminum materials. It can not only utilize the advantage of the light weight of the aluminum profile to greatly reduce the dead weight of the structure, but also utilize the stiffness of the steel 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 outward. 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 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 details, please refer to Figure 6 The large-span steel-aluminum composite crossbeam of this embodiment also includes a tie rod assembly, which includes a tie rod 5 and a tie rod connecting sleeve 6. 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 crossbeam 3 in the vertical direction, the tie rod 5 is passed through the through hole 4, and the tie rod connecting sleeve 6 is provided below the through hole 4. In this embodiment, several large-span steel-aluminum composite crossbeams are provided in parallel. The tie rod assembly can connect several large-span steel-aluminum composite crossbeams in series in sections. At the same time, the tie rod 5 can withstand vertical loads. The tie rod connecting sleeve 6 is provided below the through hole 4, which facilitates the segmented installation and adjustment of the tie rod 5 and can control the pre-arching condition of the large-span steel-aluminum composite crossbeam.

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

[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 interior side 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. Then, after the pull rod 5 and the glass 11 are installed in place, the outdoor buckle cover 8 is finally buckled on 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 description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection 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. 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. 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 cantilevered steel beam is an H-shaped steel beam. 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 into the aluminum alloy beam. 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 not less than 250 mm when inserted into the aluminum alloy beam.

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 crossbeam 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. There are multiple second bolts, and the multiple 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 beam in the vertical direction, the pull rod is passed through 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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