Connecting joint of aluminum alloy beam and supporting rod

Abstract

The utility model discloses a connecting node of an aluminum alloy beam and a supporting rod, which relates to the technical field of structural engineering and comprises an H-shaped aluminum alloy beam, the supporting rod and a connecting component. The H-shaped aluminum alloy beam comprises an upper flange, a lower flange and a web plate; the connecting assembly comprises an upper connecting plate, two middle connecting plates and a lower T-shaped lug plate; mounting grooves are formed in the upper ends of the supporting rods; the upper connecting plate is positioned above the upper flange; two sides of the web plate are respectively provided with a middle connecting plate; a lower transverse plate of the lower T-shaped lug plate is positioned below the lower flange; the upper connecting plate, the upper flange and the upper ends of the two middle connecting plates are fixedly connected; the lower ends of the two middle connecting plates, the lower flange and the lower transverse plate of the lower T-shaped lug plate are fixedly connected; the lower end of the lower vertical plate of the lower T-shaped lug plate is inserted into the mounting groove of the supporting rod, and the lower vertical plate is rotationally connected with the upper end of the supporting rod around the first axis. The shear capacity of the aluminum alloy beam is fully enhanced, the problem of stress concentration is reduced, and the bearing capacity and stability of the joint and the reliability of joint connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of structural engineering, in particular to a connection node between an aluminum alloy beam and a strut. Background Art

[0002] The string structure is a prestressed structure that is both rigid and flexible, including a variety of structural forms. The beam string structure is one of the most basic and important types and is widely used in large-span space structures. However, due to the large size of steel structure rods and nodes, the heavy structure, the building body is not light enough, the welding workload during production and installation is large, and it is easy to corrode under natural conditions. The advantages of the string structure have not been truly brought into play. After continuous exploration, it was found that aluminum alloy beams can make up for the shortcomings of steel beams. Its main features are light weight, corrosion resistance, easy maintenance, good durability, non-magnetic, lower cost than stainless steel structure, and easy production and installation. The aluminum alloy beam string structure is mainly composed of upper beam components and lower flexible cables. The flexible cable is the key to the high performance of the structure, and the connection node between the beam and the strut is the prerequisite for the normal operation of the plane string structure. In order to ensure the stability of the plane string structure, it is generally required that there is no slippage with the strut node. However, due to the poor welding performance of aluminum alloy and the poor stability of ordinary bolt connections, a new type of aluminum alloy beam and strut connection node is urgently needed.

[0003] At present, there are usually two types of nodes connecting prestressed aluminum alloy beams and struts: 1. Figure 3 As shown, a T-shaped stainless steel ear plate 91 is used, and the T-shaped stainless steel ear plate 91 is connected to the lower flange of the H-shaped aluminum alloy beam 1' by bolts, and the support rod 2' is connected to the T-shaped stainless steel ear plate 91 by a pin 94; 2. Figure 4 As shown, a double-forked ear plate 92 is used. First, a hole is punched on the lower flange of the H-shaped aluminum alloy beam 1' at the node, so that the double-forked surface passes through the lower flange of the H-shaped aluminum alloy beam 1' and is connected to the web of the H-shaped aluminum alloy beam 1' through an axle pin 94, and the steel connecting seat 93 of the node on the strut 2' is connected to the stainless steel strut 2'.

[0004] Existing nodes are prone to stress concentration, especially at the connection point between the connecting plate and the aluminum alloy beam. Connecting only through the lower flange or web of the beam can easily lead to a decrease in the bearing capacity of the node, especially in extreme cases such as long-term use or strong wind loads, which may cause node failure or structural damage. The materials used in some existing nodes may not have good corrosion resistance, especially in outdoor or humid environments, which are prone to corrosion, affecting the service life and stability of the node. Utility Model Content

[0005] The purpose of the utility model is to provide a connection node between an aluminum alloy beam and a strut, so as to solve the problems existing in the above-mentioned prior art, fully enhance the shear resistance of the aluminum alloy beam, reduce the problem of force concentration, and improve the bearing capacity and stability of the node and the reliability of the node connection.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a connection node between an aluminum alloy beam and a strut, comprising an H-shaped aluminum alloy beam, a strut located below the H-shaped aluminum alloy beam and a connection assembly; the H-shaped aluminum alloy beam comprises an upper flange, a lower flange and a web located between the upper flange and the lower flange; the upper flange is located above the lower flange in parallel, the web is perpendicular to the upper flange and the lower flange, and one end of the web is fixedly connected to the upper flange, and the other end of the web is fixedly connected to the lower flange; the connection assembly comprises an upper connecting plate, two middle connecting plates and a lower T-shaped ear plate, the lower T-shaped ear plate comprises a lower transverse plate and a lower vertical plate, the lower transverse plate is located above the lower vertical plate, and the upper end of the lower vertical plate is fixedly connected to the middle of the lower side of the lower transverse plate ; The upper end of the support rod has a mounting groove; the upper connecting plate is located above the upper flange; one of the middle connecting plates is respectively arranged on both sides of the web; the lower transverse plate of the lower T-shaped ear plate is located below the lower flange; the upper connecting plate, the upper flange and the upper ends of the two middle connecting plates are respectively fixedly connected by at least one first connecting member; the lower ends of the two middle connecting plates, the lower flange and the lower transverse plate of the lower T-shaped ear plate are respectively fixedly connected by at least one second connecting member; the lower end of the lower vertical plate of the lower T-shaped ear plate is inserted into the mounting groove of the support rod, and the lower vertical plate is rotatably connected to the upper end of the support rod around a first axis, and the first axis is perpendicular to the length extension direction of the H-shaped aluminum alloy beam.

[0008] Preferably, each of the middle connecting plates is fixedly connected to the web.

[0009] Preferably, the middle connecting plate is a U-shaped plate; the upper flange, the web and the lower flange together form two U-shaped grooves, each of the U-shaped grooves is divided into two sides located at the web; the U-shaped plate is located in the U-shaped groove and the outer wall of the U-shaped plate is in contact with the inner wall of the U-shaped groove.

[0010] Preferably, the middle connecting plate includes a first transverse plate, a second transverse plate and at least one vertical rib plate arranged between the first transverse plate and the second transverse plate; the first transverse plate and the second transverse plate are located on the same side of the web, the first transverse plate and the second transverse plate are arranged in parallel, and the first transverse plate is located above the second transverse plate, the upper end of each of the vertical rib plates is fixedly connected to the first transverse plate, and the lower end of each of the vertical rib plates is fixedly connected to the second transverse plate; the first transverse plate is located below the upper flange, and the second transverse plate is located above the lower flange.

[0011] Preferably, at least one first mounting hole is provided at corresponding positions of the upper ends of the upper connecting plate, the upper flange and the two middle connecting plates, and at least one second mounting hole is provided at corresponding positions of the lower ends of the two middle connecting plates, the lower flange and the lower cross plate of the lower T-shaped ear plate; a first connecting member is fixedly inserted into each of the first mounting holes, and a second connecting member is fixedly inserted into each of the second mounting holes.

[0012] Preferably, the upper connecting plate, each of the middle connecting plates and the lower T-shaped ear plate are all made of stainless steel.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The connecting node between the aluminum alloy beam and the strut provided by the utility model adopts an upper connecting plate, two middle connecting plates and a lower T-shaped ear plate to form an enclosing structure at the node of the H-shaped aluminum alloy beam, thereby increasing the overall strength of the connecting node, so that the tension of the strut can be more evenly dispersed at various positions of the connecting node of the H-shaped aluminum alloy beam; it can realize the connection between each other through the corresponding first connecting piece or the second connecting piece, compared with the existing cutting and punching of the lower flange of the H-shaped aluminum alloy beam, it can improve the bearing capacity of the node; effectively prevent instability, fully enhance the shear resistance of the H-shaped aluminum alloy beam, reduce the problem of force concentration, and improve the bearing capacity and stability of the node and the reliability of the node connection.

[0015] Furthermore, the fixed connection between the middle connecting plate and the web can further improve the overall connection strength and improve the reliability of the connection node.

[0016] Furthermore, the middle connecting plate adopts a U-shaped plate, which has a simple structure and is convenient for processing, manufacturing and installation.

[0017] Furthermore, the middle connecting plate adopts a combination of multiple vertical ribs and a first transverse plate and a second transverse plate to better improve the overall connection strength effect at the connecting node and improve the bearing capacity and stability of the connecting node.

[0018] Furthermore, by opening corresponding first mounting holes and second mounting holes, and using corresponding first connecting members and second connecting members to achieve fixed connection of components at corresponding positions, the connection is simple and convenient.

[0019] Furthermore, stainless steel is used, which has good corrosion resistance and is not prone to corrosion in outdoor or humid environments, thereby ensuring the service life and stability of the connection nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the connection node between the aluminum alloy beam and the support rod provided by the utility model;

[0022] Figure 2 Another schematic diagram of the overall structure of the connection node between the aluminum alloy beam and the support rod provided by the utility model;

[0023] Figure 3 It is a structural schematic diagram of a connection node between an existing aluminum alloy beam and a strut;

[0024] Figure 4 The figure is a schematic diagram of the structure of another existing connection node between an aluminum alloy beam and a strut.

[0025] In the figure:

[0026] 1 / 1'-H-shaped aluminum alloy beam; 11-upper flange; 12-web; 13-lower flange;

[0027] 2 / 2'- support rod; 21- mounting slot;

[0028] 3- Upper connecting plate;

[0029] 4 / 4'-middle connecting plate; 41-first horizontal plate; 42-vertical rib plate; 421-reinforced connecting plate; 43-second horizontal plate;

[0030] 5-lower T-shaped ear plate; 51-lower horizontal plate; 52-lower vertical plate;

[0031] 6- first connecting member;

[0032] 7- second connecting member;

[0033] 8-Connect standard parts;

[0034] 91-T-type stainless steel ear plate; 92-double fork ear plate; 93-steel connecting seat; 94-pin shaft. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The purpose of the utility model is to provide a connection node between an aluminum alloy beam and a strut to solve the problems existing in the prior art, fully enhance the shear resistance of the aluminum alloy beam, reduce the problem of force concentration, and improve the bearing capacity and stability of the node and the reliability of the node connection.

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] Embodiment 1

[0039] This embodiment provides a connection node between an aluminum alloy beam and a support rod 2, such as Figure 1 and Figure 2 As shown, it includes an H-shaped aluminum alloy beam 1, a support rod 2 located below the H-shaped aluminum alloy beam 1, and a connecting assembly; the H-shaped aluminum alloy beam 1 includes an upper flange 11, a lower flange 13, and a web 12 located between the upper flange 11 and the lower flange 13; the upper flange 11 is located above the lower flange 13 in parallel, the web 12 is perpendicular to the upper flange 11 and the lower flange 13, and one end of the web 12 is fixedly connected to the upper flange 11, and the other end of the web 12 is fixedly connected to the lower flange 13; the connecting assembly includes an upper connecting plate 3, two middle connecting plates 4 and a lower T-shaped ear plate 5, the lower T-shaped ear plate 5 includes a lower transverse plate 51 and a lower vertical plate 52, the lower transverse plate 51 is located above the lower vertical plate 52, and the upper end of the lower vertical plate 52 is fixedly connected to the lower middle part of the lower transverse plate 51 ; The upper end of the support rod 2 has a mounting groove 21; the upper connecting plate 3 is located above the upper flange 11; a middle connecting plate 4 is provided on both sides of the web 12; the lower transverse plate 51 of the lower T-shaped ear plate 5 is located below the lower flange 13; the upper connecting plate 3, the upper flange 11 and the upper ends of the two middle connecting plates 4 are respectively fixedly connected by at least one first connecting member 6; the lower ends of the two middle connecting plates 4, the lower flange 13 and the lower transverse plate 51 of the lower T-shaped ear plate 5 are respectively fixedly connected by at least one second connecting member 7; the lower end of the lower vertical plate 52 of the lower T-shaped ear plate 5 is inserted into the mounting groove 21 of the support rod 2, and the lower vertical plate 52 is rotatably connected to the upper end of the support rod 2 around the first axis, and the first axis is perpendicular to the length extension direction of the H-shaped aluminum alloy beam 1.

[0040] By adopting an upper connecting plate 3, two middle connecting plates 4 and a lower T-shaped ear plate 5 to jointly form an enclosing structure at the node of the H-shaped aluminum alloy beam 1, the overall strength of the connection node is increased, so that the tension of the support rod 2 can be more evenly dispersed at various positions of the connection node of the H-shaped aluminum alloy beam 1; it can be connected to each other through the corresponding first connecting member 6 or the second connecting member 7. Compared with the existing cutting and punching of the lower flange 13 of the H-shaped aluminum alloy beam 1, it can improve the bearing capacity of the node; effectively prevent instability, fully enhance the shear resistance of the H-shaped aluminum alloy beam 1, reduce the problem of force concentration, and improve the bearing capacity, stability and reliability of the node connection.

[0041] Among them, regarding the structure of the H-shaped aluminum alloy beam 1:

[0042] Specifically, the H-shaped aluminum alloy beam 1 can be a double web structure or a single web structure; when the H-shaped aluminum alloy beam 1 is a double web structure, the two middle connecting plates 4 are respectively located on the outer sides of the two webs 12 .

[0043] To increase the overall strength, the following settings can also be made:

[0044] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, each middle connecting plate 4 is fixedly connected to the web 12. The fixed connection between the middle connecting plate 4 and the web 12 can further improve the overall connection strength and the reliability of the connection node.

[0045] In order to ensure the service life and stability of the connection nodes, the following settings can also be made:

[0046] In the optional scheme of this embodiment, it is more preferred that the upper connecting plate 3, each middle connecting plate 4 and the lower T-shaped ear plate 5 are all made of stainless steel. Stainless steel has good corrosion resistance and is not prone to corrosion in outdoor or humid environments, ensuring the service life and stability of the connection nodes.

[0047] Among them, regarding the structure of the middle connecting plate 4 / 4':

[0048] Specifically, the middle connecting plate 4 / 4' has the following two structural schemes:

[0049] First, among the optional solutions of this embodiment, it is more preferred that Figure 1As shown, the middle connecting plate 4 includes a first transverse plate 41, a second transverse plate 43 and at least one vertical rib plate 42 disposed between the first transverse plate 41 and the second transverse plate 43; the first transverse plate 41 and the second transverse plate 43 are located on the same side of the web 12, the first transverse plate 41 and the second transverse plate 43 are arranged in parallel, and the first transverse plate 41 is located above the second transverse plate 43, the upper end of each vertical rib plate 42 is fixedly connected to the first transverse plate 41, and the lower end of each vertical rib plate 42 is fixedly connected to the second transverse plate 43; the first transverse plate 41 is located below the upper flange 11, and the second transverse plate 43 is located above the lower flange 13. The middle connecting plate 4 uses a plurality of vertical rib plates 42 and the first transverse plate 41 and the second transverse plate 43 to achieve a better overall connection strength effect at the connection node, and improve the bearing capacity and stability of the connection node.

[0050] Specifically, the number and spacing distribution of the vertical ribs 42 can be determined according to actual conditions or actual simulation results.

[0051] Specifically, a reinforcement connecting plate 421 extends from the vertical rib plate 42 , and each reinforcement connecting plate 421 is used to be fixedly connected to the web 12 via a connection standard part 8 .

[0052] Second, among the optional solutions of this embodiment, it is more preferred that Figure 2 As shown, the middle connecting plate 4' is a U-shaped plate; the upper flange 11, the web 12 and the lower flange 13 together form two U-shaped grooves, each U-shaped groove is divided into two sides located at the web 12; the U-shaped plate is located in the U-shaped groove and the outer wall of the U-shaped plate fits the inner wall of the U-shaped groove. The middle connecting plate 4' adopts a U-shaped plate, which has a simple structure and is easy to process, manufacture and install.

[0053] Among them, the connection between the components is realized as follows:

[0054] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, at least one first mounting hole is provided at the corresponding position of the upper connecting plate 3, the upper flange 11 and the upper ends of the two middle connecting plates 4 / 4', and at least one second mounting hole is provided at the corresponding position of the lower ends of the two middle connecting plates 4 / 4', the lower flange 13 and the lower cross plate 51 of the lower T-shaped ear plate 5; a first connecting member 6 is fixedly inserted in each first mounting hole, and a second connecting member 7 is fixedly inserted in each second mounting hole. By opening corresponding first mounting holes and second mounting holes, and using corresponding first connecting members 6 and second connecting members 7 to realize fixed connection of each component at corresponding positions, the connection is simple and convenient.

[0055] Specifically, the first connecting member 6 and the second connecting member 7 are both annular groove rivets.

[0056] Specifically, when the H-shaped aluminum alloy beam 1 is a double web structure, the connection between the middle connecting plate 4 and the web 12 can be achieved through single-sided high-strength bolts.

[0057] Specifically, the mounting groove 21 on the support rod 2 is formed by two mounting plates arranged in parallel, and a reinforcing rib is arranged between the two mounting plates and the upper end of the support rod 2 .

[0058] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A connection node between an aluminum alloy beam and a strut, characterized in that: It includes an H-shaped aluminum alloy beam, a support rod and a connecting assembly located below the H-shaped aluminum alloy beam; The H-shaped aluminum alloy beam comprises an upper flange, a lower flange and a web located between the upper flange and the lower flange; the upper flange is located parallel to and above the lower flange, the web is perpendicular to the upper flange and the lower flange, one end of the web is fixedly connected to the upper flange, and the other end of the web is fixedly connected to the lower flange; The connecting assembly includes an upper connecting plate, two middle connecting plates and a lower T-shaped ear plate, the lower T-shaped ear plate includes a lower transverse plate and a lower vertical plate, the lower transverse plate is located above the lower vertical plate, and the upper end of the lower vertical plate is fixedly connected to the lower middle part of the lower transverse plate; the upper end of the support rod has a mounting groove; The upper connecting plate is located above the upper flange; one of the middle connecting plates is respectively arranged on both sides of the web; the lower transverse plate of the lower T-shaped ear plate is located below the lower flange; the upper connecting plate, the upper flange and the upper ends of the two middle connecting plates are respectively fixedly connected by at least one first connecting member; the lower ends of the two middle connecting plates, the lower flange and the lower transverse plate of the lower T-shaped ear plate are respectively fixedly connected by at least one second connecting member; The lower end of the lower vertical plate of the lower T-shaped ear plate is inserted into the mounting groove of the support rod, and the lower vertical plate is rotatably connected to the upper end of the support rod around a first axis, and the first axis is perpendicular to the length extension direction of the H-shaped aluminum alloy beam.

2. The connection node between the aluminum alloy beam and the strut according to claim 1, characterized in that: Each of the middle connecting plates is fixedly connected to the web.

3. The connection node between the aluminum alloy beam and the strut according to claim 1, characterized in that: The middle connecting plate is a U-shaped plate; The upper flange, the web and the lower flange together form two U-shaped grooves, each of the U-shaped grooves being located on two sides of the web; The U-shaped plate is located in the U-shaped groove and the outer wall of the U-shaped plate is in contact with the inner wall of the U-shaped groove.

4. The connection node between the aluminum alloy beam and the strut according to claim 1, characterized in that: The middle connecting plate includes a first transverse plate, a second transverse plate and at least one vertical rib plate arranged between the first transverse plate and the second transverse plate; The first transverse plate and the second transverse plate are located on the same side of the web, the first transverse plate and the second transverse plate are arranged in parallel, and the first transverse plate is located above the second transverse plate, the upper end of each of the vertical ribs is fixedly connected to the first transverse plate, and the lower end of each of the vertical ribs is fixedly connected to the second transverse plate; The first transverse plate is located below the upper flange, and the second transverse plate is located above the lower flange.

5. The connection node between the aluminum alloy beam and the strut according to claim 1, characterized in that: At least one first mounting hole is provided at the corresponding positions of the upper connecting plate, the upper flange and the upper ends of the two middle connecting plates, and at least one second mounting hole is provided at the corresponding positions of the lower ends of the two middle connecting plates, the lower flange and the lower cross plate of the lower T-shaped ear plate; A first connecting member is fixedly inserted into each of the first mounting holes, and a second connecting member is fixedly inserted into each of the second mounting holes.

6. The connection node between the aluminum alloy beam and the strut according to claim 1, characterized in that: The upper connecting plate, each of the middle connecting plates and the lower T-shaped ear plates are all made of stainless steel.

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