A connecting structure for long-span steel-bamboo building

Abstract

The application discloses a novel connecting structure for large-span steel-bamboo buildings, and belongs to the technical field of large-span buildings. The connecting structure comprises a supporting body which is formed by mutually splicing a plurality of connecting units, long steel-bamboo poles are connected to the periphery of the supporting body, a central lifting point is arranged directly above the supporting body, and a plurality of lifting pieces are connected between the supporting body and the central lifting point. The connecting unit comprises a plurality of short steel-bamboo poles which are in equal-angle radial distribution and are connected at the ends, and the ends of the short steel-bamboo poles are fixed through connecting nodes. Two adjacent connecting units are connected through the connecting nodes or through a shared short steel-bamboo pole. The novel connecting structure for large-span steel-bamboo buildings fully utilizes the initial vertical form of natural steel bamboo, and combines the novel connecting node to form a novel building structure system, which is characterized by low cost, structural safety and building aesthetics, and can be used for large-span steel-bamboo buildings.

Description

Technical Field

[0001] This invention belongs to the field of large-span building technology, and particularly relates to a connection structure for large-span steel-bamboo buildings. Background Technology

[0002] Currently, most construction materials used in my country are still traditional building materials. Whether considering resource and energy consumption, land degradation, or environmental pollution, these materials are unsustainable. Bamboo, with its easy propagation, rapid growth, early maturity, and high yield, has led to the increasing prevalence of steel-bamboo buildings. However, how to fully utilize this material to construct aesthetically pleasing, structurally sound, and large-span buildings remains a crucial issue. Currently, most methods involve bending bamboo with fire and binding it with hemp rope to create various curves or curved surfaces. However, this practice leads to a "loosening effect" in the hemp rope after prolonged use, compromising structural safety. Furthermore, the durability of the hemp rope deteriorates with changes in building temperature and humidity, making replacement or reinforcement difficult in the later stages of use.

[0003] Given that natural steel bamboo has good architectural aesthetics and excellent mechanical properties, how to make full use of the vertical initial shape of natural steel bamboo and combine it with reasonable connection nodes to form an economical, safe, and aesthetically pleasing large-span steel bamboo building has become a technical problem that urgently needs to be solved by those skilled in the art.

[0004] Therefore, this invention proposes a novel structure for large-span steel-bamboo buildings. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a connection structure for large-span steel-bamboo buildings, aiming to solve or improve at least one of the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides a connection structure for large-span steel-bamboo buildings, comprising a support body composed of several sets of connection units spliced ​​together. Long steel bamboo poles are connected to the periphery of the support body, and a central lifting point is provided directly above the support body. Multiple lifting components are connected between the support body and the central lifting point. Each connection unit comprises multiple short steel bamboo poles with their ends connected and radially distributed at equal angles. The ends of the short steel bamboo poles are fixed by connection nodes. Adjacent connection units are connected either by the connection nodes or by sharing a single short steel bamboo pole.

[0007] The above structure aims to propose a connection structure for large-span steel-bamboo buildings, making full use of vertical steel-bamboo poles and new connection nodes, while effectively reducing energy consumption caused by secondary processing and avoiding the problem of unreliable existing connections, so as to achieve the goal of safe, beautiful and reliable large-span steel-bamboo buildings.

[0008] Preferably, the connecting unit comprises three short steel bamboo poles whose ends are connected and radially distributed at equal included angles.

[0009] Preferably, the three short steel bamboo poles in the same connecting unit are not on the same horizontal plane.

[0010] Preferably, the lifting component includes steel pipes and steel cables, which are alternately distributed.

[0011] Preferably, the steel pipe and the steel cable are connected to the connection node.

[0012] Preferably, the connecting node includes a ball node and a plurality of connecting rods radially distributed at equal angles outside the ball node, each connecting rod connecting to a short steel bamboo pole or a long steel bamboo pole.

[0013] Preferably, the end of the connecting rod away from the ball node is connected to a quick-connect mechanism, and at least two quick-connect mechanisms are distributed along the circumference of the connecting rod.

[0014] Preferably, the end of the connecting rod is connected to three quick-connect mechanisms, which are evenly distributed around the circumference of the connecting rod and are all perpendicular to the connecting rod.

[0015] Preferably, the quick-connect mechanism includes a first telescopic rod and a second telescopic rod. The first telescopic rod is a tube, with one end fixed to the end circumferential surface of the connecting rod and the other end open to accommodate the second telescopic rod. The second telescopic rod is elastically contracted inside the first telescopic rod by a drive mechanism. When the drive mechanism is released, the second telescopic rod pops outward.

[0016] Preferably, the driving mechanism is a spring.

[0017] Compared with the prior art, the device of the present invention has the following advantages and technical effects:

[0018] This invention proposes a novel connection node for large-span steel-bamboo buildings. It makes full use of the natural vertical initial shape of steel-bamboo and combines it with the novel connection node proposed in this invention to form a new building structure system. It has the characteristics of being economical, structurally safe, and aesthetically pleasing, and can be used for large-span steel-bamboo buildings.

[0019] Furthermore, using steel bamboo in its natural vertical state effectively avoids excessive energy consumption caused by secondary processing; and a novel connection node enables effective and reliable connection of the steel bamboo components, mitigating safety issues caused by poor node durability from the initial design stage, thus reducing the pressure on later operation and maintenance. Therefore, directly utilizing simply treated steel bamboo for corrosion and insect prevention, combined with the novel connection node, to construct a large-span steel bamboo building with an aesthetically pleasing structure is simpler and less costly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the connection structure for large-span steel-bamboo buildings according to the present invention;

[0022] Figure 2 This is a top view of the connection structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connecting unit in the connecting structure of the present invention;

[0024] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the connection node in the connection structure of the present invention;

[0026] Figure 6 This is a front view of the telescopic connecting rod in the compressed state in Embodiment 1 of the present invention;

[0027] Figure 7 This is a front view of the telescopic connecting rod in the extended state in Embodiment 1 of the present invention;

[0028] Figure 8 This is a front view of the telescopic connecting rod in the compressed state in Embodiment 2 of the present invention;

[0029] Figure 9 This is a front view of the telescopic connecting rod in the extended state in Embodiment 2 of the present invention;

[0030] Figure 10 This is a top view of the telescopic connecting rod in the compressed state in Embodiment 3 of the present invention;

[0031] Figure 11This is a top view of the telescopic connecting rod in the extended state in Embodiment 3 of the present invention;

[0032] Figure 12 This is a front view of the telescopic connecting rod in the compressed state in Embodiment 3 of the present invention;

[0033] Figure 13 This is a front view of the telescopic connecting rod in the extended state in Embodiment 3 of the present invention.

[0034] The components are as follows: 1. Short steel bamboo pole; 2. Long steel bamboo pole; 3. Support connection end; 4. Steel pipe; 5. Steel cable; 6. Connection node; 7. Central lifting point; 61. Ball joint; 62. Connecting rod; 63. First telescopic rod; 64. Second telescopic rod; 65. Spring; 81. First movable rod; 82. Second movable rod; 83. Third movable rod; 84. Fourth movable rod; 85. First hinge; 86. Guide rail; 87. Support; 88. Turntable; 89. Rotating bolt; 91. First push rod; 92. Second push rod; 93. Rotating rod; 94. Second hinge; 95. Rotating shaft; 96. Rotator. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] The following is combined with Figures 1 to 13 This invention describes a connection structure for large-span steel-bamboo buildings.

[0038] refer to Figure 1 , Figure 1 This diagram illustrates a three-dimensional view of a large-span steel-bamboo building connection structure according to Embodiment 1 of the present invention. The large-span steel-bamboo building connection structure includes a support body, with two long steel bamboo poles 2 connected to both sides of the support body. The two long steel bamboo poles 2 extend in opposite directions to both sides of the support body, forming a large-span connection structure. The support body is composed of multiple sets of connecting units spliced ​​together, such as... Figure 1 and Figure 2 As shown, in this embodiment, the support structure is composed of four sets of connecting units spliced ​​together to form a spatial hexagonal structure. Each connecting unit includes three short steel bamboo poles 1 with their ends connected and radially distributed at equal included angles. One end of the three short steel bamboo poles 1 is fixed together by connecting nodes 6 to form a trident-shaped structure. Specifically, as shown... Figure 3 As shown; two adjacent connection units are connected by connection node 6, or by sharing a short steel bamboo pole 1; as Figure 2 As shown, in this embodiment, four connecting units are spliced ​​together to form a support body. Each pair forms a group, with two connecting units in the same group sharing a short steel bamboo pole 1 for connection. Different groups are connected via connecting nodes 6, and long steel bamboo poles 2 extending to both sides of the support body are connected to the connecting nodes 6 at the connection points between the two groups, forming a structure as shown. Figure 1 The large-span connection structure shown has a support connection end 3 at the end of the long steel bamboo pole 2 and the end of the short steel bamboo pole 1 with a free end. The support connection end 3 is used to connect other supporting parts of the building, such as steel structures.

[0039] Further optimization of the plan resulted in the three short steel bamboo poles not being on the same horizontal plane.

[0040] Further optimization of the scheme also includes a central lifting point 7 located directly above the support body. Each connecting node 6 in the support body is connected to the central lifting point 7 with a lifting component, specifically including a steel pipe 4 and a steel cable 5, which are distributed alternately.

[0041] Further optimize the plan, such as Figure 5 As shown, the connecting node 6 includes a ball node 61 and three connecting rods 62 distributed at equal angles around the ball node 61. At least two quick-connecting mechanisms are evenly distributed around the end of the three connecting rods 62 away from the ball node 61, which are used to connect short steel bamboo poles 1 or long steel bamboo poles 2 (collectively referred to as bamboo poles), or to connect the steel structure of the building.

[0042] In one specific embodiment, three fixing rods are evenly distributed around the end of the connecting rod 62, and the three fixing rods are inserted into the bamboo pole from three directions to form a stable connection.

[0043] In some other embodiments, the quick-connect mechanism can be replaced with a tube with an internal threaded hole. After the three tubes are inserted into the bamboo pole, they correspond to the pre-drilled holes on the pole and are then connected by fastening screws.

[0044] To further optimize the solution and achieve rapid installation, this invention proposes three retractable quick-connect mechanisms. After being inserted into the bamboo pole, these mechanisms can quickly extend and engage with the openings on the pole to complete the connection.

[0045] Example 1:

[0046] like Figure 6 and Figure 7 As shown, Figure 6 and Figure 7The diagram shows a first structural schematic of the quick-connect mechanism. The quick-connect mechanism of this embodiment 1 includes a first telescopic rod 63, a second telescopic rod 64, and a spring 65. The first telescopic rod 63 is fixed to the end circumferential surface of the connecting rod 62 and has an inner cavity for accommodating the entry and exit of the second telescopic rod 64. The second telescopic rod 64 slides and extends in the inner cavity, and a spring 65 is connected to the tail end of the second telescopic rod 64 (the end that enters the inner cavity). When the spring 65 is in a compressed state, the second telescopic rod 64 retracts into the inner cavity. When the elasticity of the spring 65 is released, it extends outward along the elastic direction. Under the action of the spring 65, the second telescopic rod 64 is ejected from the inner cavity. It should be understood that when making the connection, you can hold the connecting rod 62 and press down the three quick-connecting mechanisms surrounding the connecting rod 62, so that the three second telescopic rods 64 retract into the inner cavity. Then, insert the entire connecting rod 62 into the end of the bamboo pole. By rotating the bamboo pole, align it with the opening. When the quick-connecting mechanism is aligned with the opening, the second telescopic rod 64 is popped out and locked into the opening, completing the quick connection.

[0047] It is understandable that the spring 65 is initially in a compressed state. A top-pin telescopic mechanism similar to that in an automatic telescopic ballpoint pen can be used to control the spring 65. By pressing the top pin, the telescopic rod inside the spring 65 is moved, thereby releasing the elastic force of the spring 65 and causing the second telescopic rod 64 to pop out of the inner cavity, thus completing the connection.

[0048] Example 2:

[0049] like Figure 8 and Figure 9 As shown, Figure 8 and Figure 9A second structural schematic diagram of the quick-connect mechanism is shown. This embodiment 2's quick-connect mechanism includes a first telescopic rod 63, a second telescopic rod 64, and a first driving mechanism that drives the second telescopic rod 64 to reciprocate within the inner cavity of the first telescopic rod 63. The first driving mechanism includes a guide rail 86 fixedly connected to the inner cavity of the first telescopic rod 63, and four movable rods 81, 82, 83, and 84 that are hinged together at their ends. Each movable rod (referring to the first movable rod 81, 82, 83, and 84) is connected by a first hinge 85. The end of the fourth movable rod 84 furthest from the first movable rod 81 is connected to the tail end of the second telescopic rod 64. A turntable 88, fixedly connected to the first movable rod 81, is also provided at the hinge position of the first movable rod 81 and the second movable rod 82. The turntable 88 is rotatably connected to a support 87, which is fixed to the guide rail 86. The second movable rod 82 slides axially in the guide rail 86. The turntable 88 is driven to rotate by a telescopic L-shaped connecting rod. The L-shaped connecting rod has an end that extends through and out of the first telescopic rod 63, specifically extending from the side opening of the first telescopic rod 63. A reversing connector is provided in the L-shaped connecting rod, which extends out of the end of the L-shaped connecting rod and is connected to a rotating bolt 89. By screwing in / out the rotating bolt 89, the vertical linear motion can be changed to a horizontal linear motion, thereby driving the turntable 88 to rotate. The first movable rod 81, which is fixed to the turntable 88, rotates around its hinge end, while the fourth movable rod 84, which is hinged to the other end of the first movable rod 81, pushes forward, pushing the second telescopic rod 64 out of the inner cavity. Since the second movable rod 82 is restricted in the guide rail 86, it can only move linearly along the axial direction, while the fourth movable rod 84, which is arranged parallel to the second movable rod 82, can be pushed forward or retracted backward under the drive of the first movable rod 81.

[0050] Example 3:

[0051] like Figures 10-13 As shown, Figures 10-13A schematic diagram of a third structure of the quick-connect mechanism is shown. This embodiment 3's quick-connect mechanism includes a first telescopic rod 63, a second telescopic rod 64, and a second driving mechanism that drives the second telescopic rod 64 to reciprocate within the inner cavity of the first telescopic rod 63. The second driving mechanism includes a first push rod 91 and a second push rod 92. One end of the second push rod 92 is fixed to the tail end of the second telescopic rod 64, and the other end is hinged to the end of a rotating rod 93 via a second hinge 94. The middle part of the rotating rod 93 is rotatably connected within the inner cavity of the first telescopic rod 63, and the other end of the rotating rod 93 is hinged to the first push rod 91. The first push rod 91 and the second push rod 92 are arranged in parallel. A rotating shaft 95 perpendicular to the rotating shaft 93 is fixed to the middle of the rotating rod 93. The end of the rotating shaft 95 away from the rotating rod 93 passes through and extends out of the first telescopic rod 63. Specifically, it extends out from the side opening of the first telescopic rod 63. A rotator 96 is connected to the extended end of the rotating shaft 95. The rotator 96 drives the rotating shaft 95 to rotate, so that the first push rod 91 and the second push rod 92 move in opposite directions, and finally drive the second telescopic rod 64 to extend out of the inner cavity, so as to achieve the purpose of quickly connecting the second telescopic rod 64 to the bamboo pole.

[0052] It should be understood that the purpose of the above three quick-connect mechanisms is to enable the second telescopic rod 64 to extend from the end of the first telescopic rod 63. Therefore, other structures with the same function can be used as alternatives to the above embodiments and are not limited in this invention.

[0053] It should also be understood that the support structure can be composed of more sets of connecting units spliced ​​together, such as six sets, eight sets, etc., and it is not only possible to connect long steel bamboo poles 2 on two opposite sides of the support structure, but also to form a multi-directional radial connection structure according to the structural requirements of the building.

[0054] It should be noted that the connecting structure for this large-span steel-bamboo building can be used alone or multiple connecting structures can be spliced ​​together. In general, multiple connecting structures are spliced ​​together to complete the support of the entire building.

[0055] The usage principle and technical effects of the embodiments of the present invention are as follows:

[0056] This invention is used for building support, especially for the top support of large-span steel-bamboo buildings. In use, a certain number of holes of a certain diameter are first made at predetermined positions on the short steel bamboo poles 1 and the long steel bamboo poles 2 to facilitate later connection; then, the quick connection mechanism of this invention is used to connect the bamboo poles and the connection nodes to complete the splicing of multiple sets of connection units of the designed shape; finally, steel pipes 4 and steel cables 5 are used to splice and lift all the connected support bodies to finally form a connection structure for large-span steel-bamboo buildings.

[0057] The connection structure for large-span steel-bamboo buildings of this invention fully utilizes vertical steel-bamboo poles and novel connection nodes, effectively reducing energy consumption from secondary processing and avoiding the problems of unreliable existing connections. This achieves the goal of safe, aesthetically pleasing, and reliable large-span steel-bamboo buildings, while also being economical, structurally safe, and aesthetically pleasing. Furthermore, using steel-bamboo in its natural vertical state effectively avoids excessive energy consumption caused by secondary processing; and the aforementioned connection nodes enable effective and reliable connections between the steel-bamboo poles, avoiding safety issues caused by poor node durability from the initial design stage, thus reducing the pressure on later operation and maintenance. Therefore, directly using simply treated steel-bamboo with anti-corrosion and insect-proof properties, combined with novel connection nodes, to construct a structurally beautiful large-span steel-bamboo building results in a simpler structure and lower cost.

[0058] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.

[0059] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0060] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A connecting structure for large-span steel-bamboo buildings, characterized in that, The system includes a support body composed of several sets of connecting units spliced ​​together. The support body is connected to a long steel bamboo pole (2) on its periphery. A central lifting point (7) is provided on the top of the support body. Multiple lifting parts are connected between the support body and the central lifting point (7). The connecting unit includes multiple short steel bamboo poles (1) with their ends connected and radially distributed at equal angles. The ends of the short steel bamboo poles (1) are fixed by connecting nodes (6). Adjacent connecting units are connected by the connecting nodes (6) or by sharing a single short steel bamboo pole (1).

2. The connection structure for large-span steel-bamboo buildings according to claim 1, characterized in that, The connecting unit includes three short steel bamboo poles (1) with their ends connected and radially distributed at equal angles.

3. The connection structure for large-span steel-bamboo buildings according to claim 2, characterized in that, The three short steel bamboo poles (1) in the same connecting unit are not on the same horizontal plane.

4. The connection structure for large-span steel-bamboo buildings according to claim 1, characterized in that, The lifting component includes a steel pipe (4) and a steel cable (5), which are alternately distributed.

5. The connection structure for large-span steel-bamboo buildings according to claim 4, characterized in that, The steel pipe (4) and the steel cable (5) are connected to the connection node (6).

6. The connection structure for large-span steel-bamboo buildings according to claim 1, characterized in that, The connecting node (6) includes a ball node (61) and a plurality of connecting rods (62) radially distributed at equal angles outside the ball node (61), each connecting rod (62) connecting a short steel bamboo pole (1) or a long steel bamboo pole (2).

7. The connection structure for large-span steel-bamboo buildings according to claim 6, characterized in that, The end of the connecting rod (62) away from the ball node (61) is connected to a quick-connect mechanism, and at least two quick-connect mechanisms are distributed along the circumference of the connecting rod (62).

8. The connection structure for large-span steel-bamboo buildings according to claim 7, characterized in that, The end of the connecting rod (62) is connected to three quick-connect mechanisms. The three quick-connect mechanisms are evenly distributed around the circumference of the connecting rod (62) and are all perpendicular to the connecting rod (62).

9. The connection structure for large-span steel-bamboo buildings according to claim 8, characterized in that, The quick-connect mechanism includes a first telescopic rod (63) and a second telescopic rod (64). The first telescopic rod (63) is a tube, with one end fixed to the end circumferential surface of the connecting rod (62) and the other end open to accommodate the second telescopic rod (64). The second telescopic rod (64) is elastically contracted inside the first telescopic rod (63) by a drive mechanism. When the drive mechanism is released, the second telescopic rod (64) pops outward.

10. The connection structure for large-span steel-bamboo buildings according to claim 9, characterized in that, The driving mechanism is a spring.

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