Connecting joint of aluminum alloy beam with closed section

Abstract

The utility model discloses a closed-section aluminum alloy beam connecting node, which relates to the technical field of metal structures in structural engineering, and comprises a double-web H-shaped beam, a web connecting plate, rivets and an elastic piece, the web connecting plates are arranged on the outer sides of the double webs of the two double-web H-shaped beams at the connecting joint, and the web connecting plates are connected with the double-web H-shaped beams through the rivets; the elastic piece is arranged on the inner sides of double webs of the double-web H-shaped beam, and the elastic piece is in a state of being compressed by the double webs of the double-web H-shaped beam. According to the closed-section aluminum alloy beam connecting node, the problems of insufficient construction space, complex operation, cost increase and the like during connection of closed-section aluminum alloy beams can be solved, the operation is more convenient, reasonable pre-tightening force can be provided, the connection is reinforced through the ring groove rivets at the flanges of the beams, the initial rigidity is higher, and the strength of the beams is improved. And the overall stability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal structures in structural engineering, in particular to a closed-section aluminum alloy beam connection node. Background Art

[0002] Aluminum alloy structures have many advantages such as light weight, corrosion resistance, easy extrusion molding, excellent low temperature performance and beautiful appearance. Since the 1950s, aluminum alloys have been widely used in space structures, bridge structures, offshore structures and special structures. In particular, space structures are the structural form in which aluminum alloys can best exert their advantages. They are widely used in domes and roofs of large-span stadiums, swimming pools, memorial halls, science and technology museums and other projects.

[0003] As a new type of spatial structure that is gradually emerging, the tensioned aluminum alloy beam structure integrates prestressing into the aluminum alloy structure, plays to its strengths and avoids its weaknesses, making full use of the advantages of the aluminum alloy structure.

[0004] For example, the patent with publication number CN116378303A discloses a prestressed aluminum alloy beam structure, including: an upper chord, which is an H-shaped aluminum alloy beam and is arranged on a mounting support; a lower chord, which is a prestressed stainless steel cable, and the end of the prestressed stainless steel cable is connected to the upper chord through a beam-cable node arranged at the end of the upper chord; a stainless steel strut, which is arranged at intervals at the non-end connection of the lower chord, and is connected to the upper chord through the upper node of the strut, and is connected to the lower chord through the lower node of the strut. The prestressed aluminum alloy beam structure of the present invention fully utilizes the reinforcing effect of the prestressed cable on the rigidity of the aluminum alloy structure, and forms the string structure by mechanical connection. It has a simple structure, a clear and reasonable force transmission path, and improves the stability of the aluminum alloy structure. It is worthy of promotion and use in the industry.

[0005] Since the span of the aluminum alloy cable-stayed beam structure is large, a reliable and easy-to-operate aluminum alloy beam connection node is required. Aluminum alloy structures are often connected by bolting, riveting, etc. If there is not enough construction space in the closed interface, ordinary bolts are difficult to install. Single-sided bolts are expensive, and the preload provided by ordinary bolts is insufficient to ensure that the beam connection maintains a high load-bearing capacity. If there is a closed section, a working space is usually cut out at the closed section to achieve bolt installation. This method is complicated to operate and will affect the overall stiffness and reduce stability. If more expensive single-sided bolts are used, the project cost will increase. Summary of the invention

[0006] In order to solve the above technical problems, the utility model provides a closed-section aluminum alloy beam connection node to achieve closed-section aluminum alloy beam connection.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a closed-section aluminum alloy beam connection node, comprising a double-web H-beam, a web connection plate, a rivet and an elastic member; the web connection plate is arranged on the outer side of the double webs of two double-web H-beams at the connection node, and the web connection plate is connected to the double-web H-beam through the rivet; the elastic member is arranged on the inner side of the double webs of the double-web H-beam, and the elastic member is in a state of being compressed by the double webs of the double-web H-beam.

[0009] Optionally, the end of the spring is sleeved on the end cap of the rivet.

[0010] Optionally, flange connecting plates are provided on the outer sides of the flanges of the two double-web H-beams at the connection nodes, and the flange connecting plates are connected to the double-web H-beams via the rivets.

[0011] Optionally, the web connecting plate is made of channel steel, and the flange connecting plate, the flange of the double-web H-beam and the wing plate of the channel steel are connected by the rivets.

[0012] Optionally, the web connecting plate is made of steel plate, and the web connecting plate and the double webs of the double web H-beam are connected by the rivets; it also includes an auxiliary connecting plate, and the auxiliary connecting plate, the flange of the double web H-beam and the flange connecting plate are connected by the rivets.

[0013] Optionally, the rivet is a ring groove rivet.

[0014] Optionally, the elastic member is a spring.

[0015] Optionally, the web connecting plate is made of stainless steel.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The closed-section aluminum alloy beam connection node of the utility model can solve the problems of insufficient construction space, complicated operation, increased cost, etc. when connecting closed-section aluminum alloy beams. The operation is more convenient and can provide a reasonable preload force. The connection is strengthened by ring groove rivets at the beam flange, so it has higher initial stiffness and improves the overall stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a structural schematic diagram of the first embodiment of the closed-section aluminum alloy beam connection node in the utility model;

[0020] Figure 2 It is a schematic diagram of the disassembled structure of the first embodiment of the closed cross-section aluminum alloy beam connection node in the utility model;

[0021] Figure 3 It is a structural schematic diagram of a second embodiment of a closed-section aluminum alloy beam connection node in the utility model;

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the second implementation mode of the closed-section aluminum alloy beam connection node in the utility model.

[0023] Description of reference numerals:

[0024] 1. Double web H-beam; 2. Flange connecting plate; 3. Web connecting plate; 4. Rivet; 5. Spring; 6. Auxiliary connecting plate. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] Embodiment 1:

[0028] like Figure 1 and 2 As shown, the closed-section aluminum alloy beam connection node in this embodiment includes a double-web H-beam 1, a web connection plate 3, a flange connection plate 2, annular groove rivets 4 and a spring 5.

[0029] In this specific embodiment, the web connecting plate 3 is a channel-type stainless steel connecting plate, the flange connecting plate 2 is a flange stainless steel connecting plate, and the spring 5 is a stainless steel spring.

[0030] The installation steps of the closed cross-section aluminum alloy beam connection node in this embodiment are as follows:

[0031] 1. The webs of the two double-web H-beams 1 to be connected have double rows of longitudinal rivet holes, and the upper and lower flanges have single rows of rivet holes. The channel-type stainless steel connecting plates and flange stainless steel connecting plates matching the webs and flanges have corresponding rivet holes.

[0032] 2. Install the double-row ring groove rivets 4 at the web into the rivet holes, and ensure that there is no gap between the rivet caps and gaskets and the web;

[0033] 3. Place a spring 5 slightly smaller than its diameter at the rivet caps corresponding to the upper and lower webs of the aluminum alloy beam, and make it have a certain pressure;

[0034] 4. Butt the two double-web H-beams 1 according to the assembly position, combine the channel-type stainless steel connecting plate with the double-web H-beam 1, and also combine the stainless steel connecting plates at the upper and lower flanges in place, ensuring that all rivet holes are fully aligned;

[0035] 5. After installing the ring groove rivet collar, use a rivet gun to lock the ring groove rivets 4 at the web and flange;

[0036] 6. The closed section aluminum alloy beam connection is completed.

[0037] Embodiment 2:

[0038] like Figure 3 and 4 As shown, the closed-section aluminum alloy beam connection node in this embodiment includes a double-web H-beam 1, a web connection plate 3, a flange connection plate 2, annular groove rivets 4 and a spring 5.

[0039] In this specific embodiment, the web connecting plate 3 is a web stainless steel connecting plate, the flange connecting plate 2 is an upper flange stainless steel connecting plate, the auxiliary connecting plate 6 is a lower flange stainless steel connecting plate, and the spring 5 is a stainless steel spring.

[0040] The installation steps of the closed cross-section aluminum alloy beam connection node in this embodiment are as follows:

[0041] 1. The webs of the two double-web H-beams 1 to be connected are provided with double rows of longitudinal rivet holes, the upper and lower flanges are provided with single rows of rivet holes, and the stainless steel connecting plates matching the webs and flanges are provided with corresponding rivet holes;

[0042] 2. Install the double-row ring groove rivets 4 at the web into the rivet holes, and ensure that there is no gap between the rivet caps and gaskets and the web;

[0043] 3. Place a spring 5 slightly smaller than its diameter at the rivet caps corresponding to the upper and lower webs of the aluminum alloy beam, and make it have a certain pressure;

[0044] 4. Butt the two double-web H-beams 1 according to the assembly position, and combine the stainless steel connecting plate with the double-web H-beam 1 to ensure that all rivet holes are completely aligned;

[0045] 5. After installing the ring groove rivet collar, use a rivet gun to install the ring groove rivets 4 on the webs on both sides;

[0046] 6. Place stainless steel connecting plates on the upper and lower flanges and align the rivet holes;

[0047] 7. Use a special rivet gun to lock the ring groove rivets 4 at the upper and lower flanges;

[0048] 8. The closed section aluminum alloy beam connection is completed.

[0049] The closed-section aluminum alloy beam connection node in the utility model connects the aluminum alloy beam through the ring groove rivet 4, and a spring 5 with a certain pressure is placed at the nail cap of the ring groove rivet 4 in the closed section to install and fix the ring groove rivet 4 to prevent the ring groove rivet 4 from falling into the closed section of the aluminum alloy beam during operation, and then the ring groove rivet 4 is locked on the outside to achieve the closed-section aluminum alloy beam connection.

[0050] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0051] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A closed section aluminum alloy beam connection node, characterized in that: It includes a double-web H-beam, a web connecting plate, a rivet and an elastic member; the web connecting plate is arranged on the outer side of the double webs of the two double-web H-beams at the connection node, and the web connecting plate is connected to the double-web H-beam through the rivet; the elastic member is arranged on the inner side of the double web of the double-web H-beam, and the elastic member is in a state of being compressed by the double web of the double-web H-beam.

2. The closed-section aluminum alloy beam connection node according to claim 1, characterized in that: The end of the elastic member is sleeved on the end cap of the rivet.

3. The closed-section aluminum alloy beam connection node according to claim 1, characterized in that: Flange connecting plates are arranged on the outer sides of the flanges of the two double-web H-beams at the connection nodes, and the flange connecting plates are connected to the double-web H-beams through the rivets.

4. The closed-section aluminum alloy beam connection node according to claim 3, characterized in that: The web connecting plate is made of channel steel, and the flange connecting plate, the flange of the double-web H-beam and the wing plate of the channel steel are connected by the rivets.

5. The closed-section aluminum alloy beam connection node according to claim 3, characterized in that: The web connecting plate is made of steel plate, and the web connecting plate is connected to the double webs of the double web H-beam through the rivets; it also includes an auxiliary connecting plate, and the auxiliary connecting plate, the flange of the double web H-beam and the flange connecting plate are connected through the rivets.

6. The closed-section aluminum alloy beam connection node according to claim 1, characterized in that: The rivet is a ring groove rivet.

7. The closed-section aluminum alloy beam connection node according to claim 1, characterized in that: The elastic member is a spring.

8. The closed-section aluminum alloy beam connection node according to claim 1, characterized in that: The web connecting plate is made of stainless steel.

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