An assembled light steel-bamboo combined truss floor structure

Abstract

The application discloses an assembled light steel-bamboo combined truss floor structure, which comprises a concrete floor slab and a combined truss structure, wherein the concrete floor slab is fixed to the top of the combined truss structure; the combined truss structure comprises main trusses and secondary trusses, a plurality of the main trusses are arranged in parallel at equal intervals, and the secondary trusses are spliced between two adjacent main trusses; and the main trusses and the secondary trusses are both composed of a plurality of steel sleeve assemblies spliced with original bamboo rods. According to the application, the truss of the floor structure is firstly divided into a plurality of main trusses and secondary trusses, the complete combined truss structure is formed by splicing the main trusses and the secondary trusses to provide a place for the assembly of the floor slab, and the combined truss structure is built by combining steel and original bamboo, so that the weight of the combined truss structure can be effectively reduced, the construction difficulty is lowered, and the assembly quality is improved.

Description

Technical Field

[0001] This invention relates to the field of building engineering, specifically to a prefabricated lightweight steel-bamboo composite truss floor structure. Background Technology

[0002] Vigorously developing prefabricated buildings and promoting the transformation of my country's construction industry from labor-intensive to technology-intensive is an important direction for the future development of the construction industry. Prefabricated buildings are constructed by prefabricating components in factories and assembling them on site. The size and weight of the components directly affect the construction quality and efficiency. Existing prefabricated buildings mainly use reinforced concrete and steel structures, both of which suffer from the problem of heavy components and inconvenient construction, thus failing to realize the advantages of prefabrication. Compared with concrete and steel, bamboo is lightweight, high-strength, environmentally friendly, inexpensive, and readily available, making it significantly advantageous for use in prefabricated buildings. Based on this, considering the construction and installation characteristics of prefabricated buildings, the stress characteristics of floor slabs in building construction, the reliability of the stress on the connections between various components during assembly, and the ease of construction, combined with the abundant bamboo production in Southwest China, a prefabricated lightweight steel-bamboo composite truss floor slab has been developed. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated lightweight steel-bamboo composite truss floor structure, which applies lightweight and high-strength raw bamboo to the field of prefabricated floor slabs, effectively reducing the weight of the floor slabs, thereby reducing construction difficulty and improving assembly quality.

[0004] This invention is achieved through the following technical solution:

[0005] A prefabricated lightweight steel-bamboo composite truss floor structure includes a concrete floor slab and a composite truss structure. The concrete floor slab is fixed to the top of the composite truss structure. The composite truss structure includes main trusses and secondary trusses. Several main trusses are arranged in parallel at equal intervals, and the secondary trusses are spliced ​​between two adjacent main trusses. Both the main trusses and secondary trusses are constructed by fitting several steel sleeve components onto raw bamboo members. To solve the above-mentioned technical problems and achieve the corresponding technical effects, this invention first divides the truss of the floor slab structure into several main trusses and secondary trusses, and then splices the main trusses and secondary trusses to form a complete composite truss structure, providing a space for the assembly of the floor slab. Furthermore, the composite truss structure is constructed by combining steel and raw bamboo, which can effectively reduce the weight of the composite truss structure, thereby reducing construction difficulty and improving assembly quality.

[0006] Further technical solutions:

[0007] The main truss and the secondary truss are connected by splicing assemblies, which include a steel sleeve assembly on a main truss and at least one steel sleeve assembly on a secondary truss.

[0008] When the main truss and the secondary truss are spliced, the steel sleeve assembly at the end of the secondary truss is detachably connected to the steel sleeve assembly on the main truss.

[0009] Furthermore, in the splicing component structure, the steel sleeve assembly at the end of the secondary truss and the steel sleeve assembly on the main truss are both provided with connecting plates on their adjacent sides, and two adjacent connecting plates are connected by connecting bolts.

[0010] Furthermore: the steel sleeve assembly includes a floor slab connection part and a raw bamboo pole sleeve part, the raw bamboo pole sleeve part is disposed at the bottom of the floor slab connection part, and the raw bamboo pole sleeve part is perpendicular to the floor slab connection part;

[0011] Furthermore: the floor slab connection portion is fixedly connected to the concrete floor slab;

[0012] Furthermore: the original bamboo pole fitting is fitted onto the original bamboo pole.

[0013] Furthermore, the original bamboo pole fitting is provided with multiple original bamboo holes, and each original bamboo hole is fitted with an original bamboo pole.

[0014] Furthermore: the positions of the multiple original bamboo holes are such that one of the original bamboo holes is located at the center of the original bamboo pole sleeve, and the remaining original bamboo holes are located on the diagonal of the original bamboo pole sleeve and near the four corners of the original bamboo pole sleeve.

[0015] Furthermore: the floor slab connection part is provided with two rows of threaded holes, the two rows of threaded holes are symmetrical about the original bamboo pole sleeve part, and the concrete floor slab is provided with several threaded holes at corresponding positions.

[0016] Furthermore: when the concrete floor slab is connected to the floor slab connection part, the threaded holes on the concrete floor slab and the floor slab connection part are coaxial and fixedly connected with bolts.

[0017] Furthermore, a clamp is provided on the original bamboo pole near the joint of the original bamboo pole.

[0018] Furthermore, the bottom of the original bamboo pole fitting is provided with multiple steel strand holes, and a steel strand is inserted into each steel strand hole.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. This invention relates to a prefabricated lightweight steel-bamboo composite truss floor structure. In this invention, the truss of the floor structure is first divided into several main trusses and secondary trusses. The main trusses and secondary trusses are spliced ​​together to form a complete composite truss structure, providing a place for the assembly of the floor slab. Furthermore, the composite truss structure is constructed by combining steel and raw bamboo, which can effectively reduce the weight of the composite truss structure, thereby reducing the construction difficulty and improving the assembly quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the combined truss connection structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the main truss structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the secondary truss structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the splicing component structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the steel sleeve assembly structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation structure of the clamp component of the present invention;

[0029] Figure 8 This is an enlarged view of the installation area of ​​the concrete floor slab and the composite truss structure.

[0030] The attached diagram shows the markings and corresponding component names:

[0031] 1-Steel sleeve assembly, 2-Original bamboo pole, 3-Connecting plate, 4-Connecting bolt, 5-Bolt, 6-Clamping part, 7-Steel strand, 10-Concrete floor slab, 11-Floor slab connection part, 12-Original bamboo pole sleeve part, 20-Combined truss structure, 30-Splicing assembly, 121-Original bamboo hole, 122-Steel strand hole, 201-Main truss, 202-Secondary truss. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0034] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0036] Example

[0037] like Figures 1 to 8As shown, the present invention discloses a prefabricated lightweight steel-bamboo composite truss floor structure, comprising a concrete floor slab 10 and a composite truss structure 20. The concrete floor slab 10 is fixed to the top of the composite truss structure 20. The composite truss structure 20 includes a main truss 201 and a secondary truss 202. A plurality of main trusses 201 are arranged in parallel at equal intervals, and the secondary trusses 202 are spliced ​​between two adjacent main trusses 201. Both the main trusses 201 and the secondary trusses 202 are composed of a plurality of steel sleeve assemblies 1 sleeved on the original bamboo poles 2. In this embodiment, the first approach is to disassemble the combined truss structure into several main trusses 201 and secondary trusses 202, which effectively simplifies the installation of the truss structure and reduces its complexity. Furthermore, both the main trusses 201 and secondary trusses 202 are constructed by connecting steel sleeve components 1 to the original bamboo poles 2. Compared to traditional truss structures, the advantage of using original bamboo poles 2 is that they are lighter, which effectively reduces the difficulty of hoisting and positioning, improves the accuracy of hoisting, reduces construction difficulty, and improves assembly quality. At the same time, the use of original bamboo poles 2 can improve the seismic performance of the building and conforms to the construction concept of green and environmentally friendly construction.

[0038] The main truss 201 and the secondary truss 202 are connected by a splicing assembly 30. The splicing assembly 30 includes a steel sleeve assembly 1 on the main truss 201 and at least one steel sleeve assembly 1 on the secondary truss 202. When the main truss 201 and the secondary truss 202 are spliced, the steel sleeve assembly 1 at the end of the secondary truss 202 is detachably connected to the steel sleeve assembly 1 on the main truss 201. In the structure of the splicing assembly 30, a connecting plate 3 is provided on the adjacent side of the steel sleeve assembly 1 at the end of the secondary truss 202 and the steel sleeve assembly 1 on the main truss 201, and two adjacent connecting plates 3 are connected by connecting bolts 4. In this embodiment, the splicing of the main truss 201 and the secondary truss 202 is achieved through the splicing component 30. In fact, the splicing component 30 is composed of multiple steel sleeve components 1. In this embodiment, the splicing component 30 includes two structural forms. In one form, when the splicing component 30 is located at the edge of the combined truss structure 20, its structure contains two steel sleeve components 1, and the directions in which the two steel sleeve components 1 are sleeved onto the original bamboo pole 2 are perpendicular to each other. One steel sleeve component 1 belongs to the main truss 201 structure, and the other steel sleeve component 1 belongs to the secondary truss 202. In the other form, when the splicing component 30 is located in the middle of the combined truss structure 20, its structure includes three steel sleeve components 1. One splicing component 30 belongs to the main truss 201 structure, and the other two splicing components 30 belong to the secondary truss 202 structure. The two splicing components 30 belonging to the secondary truss 202 structure are respectively arranged on both sides of the splicing component 30 belonging to the main truss 201 structure. Specifically, the splicing component 30 is a structure formed after the main truss 201 and the secondary truss 202 are spliced ​​together. Before splicing, a connecting plate 3 needs to be installed on both sides of the steel sleeve component 1 on the main truss 201 structure by welding or other means. At the same time, a connecting plate 3 is installed on one side of the end of the steel sleeve component 1 at both ends of the secondary truss 202 by welding or other means. When splicing the main truss 201 and the secondary truss 202, the two connecting plates 3 are connected by bolts, pins, or other connection methods. Furthermore, considering the combined truss structure 2... Under the premise of ensuring structural stability, load-bearing capacity, and construction cost, in this embodiment, the secondary truss 202 is spliced ​​with the main truss 201 by means of alternating spans (that is, the secondary truss 202 erected between two main trusses 201 needs to be erected by alternating spans, and preferably, a steel sleeve component 1 is spaced apart between two adjacent secondary trusses 202). This not only ensures the structural strength of the combined truss structure 20 and achieves the supporting effect on the concrete floor slab 10, but also effectively reduces the use of secondary trusses 202, thereby reducing construction costs. It is also worth mentioning that during the specific construction process, the interior of the original bamboo pole 2 can be opened up for pipeline layout, thereby avoiding the need to drill additional holes in the floor slab. The structural characteristics of the original bamboo pole 2 are rationally and effectively utilized, which can reduce construction processes and further reduce project costs.

[0039] The steel sleeve assembly 1 includes a floor slab connection part 11 and a bamboo pole fitting part 12. The bamboo pole fitting part 12 is located at the bottom of the floor slab connection part 11 and is perpendicular to the floor slab connection part 11. The floor slab connection part 11 is fixedly connected to the concrete floor slab 10. The bamboo pole fitting part 12 is fitted onto the bamboo pole 2. In this embodiment, the steel sleeve assembly 1 is preferably a "T"-shaped steel sleeve composed of two steel plates, that is, a horizontal steel plate forms the floor slab connection part 11 and a vertical steel plate forms the bamboo pole fitting part 12. In order to ensure that the entire combined truss structure 20 is subjected to uniform stress, the vertical steel plate needs to be set along the centerline of the horizontal steel plate, and the two steel plates can be connected by welding or integral molding.

[0040] In this embodiment, to improve the load-bearing capacity of the combined truss structure 20, multiple bamboo holes 121 are provided in the bamboo pole sleeve portion 12, and a bamboo pole 2 is sleeved in each bamboo hole 121. In this structure, the weight of the concrete floor slab 10 is shared by multiple bamboo poles 2, which can effectively improve the stability and safety of the structure.

[0041] The multiple bamboo holes 121 are positioned such that one bamboo hole 121 is located at the center of the bamboo pole sleeve portion 12, while the remaining bamboo holes 121 are located diagonally across the bamboo pole sleeve portion 12 and near its four corners. In this embodiment, the arrangement of the multiple bamboo poles 2 effectively enhances the load-bearing capacity of the combined truss structure 20; moreover, this enhanced load-bearing capacity is not solely achieved through the arrangement of multiple bamboo poles 2, but also requires the coordinated placement of the bamboo holes 121.

[0042] The floor slab connecting part 11 is provided with two rows of threaded holes, which are symmetrical about the original bamboo pole sleeve part 12. The concrete floor slab 10 is provided with a number of threaded holes. When the concrete floor slab 10 is connected to the floor slab connecting part 11, the threaded holes on the concrete floor slab 10 and the floor slab connecting part 11 are coaxial and fixedly connected with bolts 5. In this embodiment, the connection between the concrete floor slab 10 and the floor slab connecting part 11 is preferably a bolted connection, but other methods that can effectively achieve the connection effect, such as plug-in or pin-connection, can be equivalently replaced by the bolted connection used in this embodiment. In order to improve the connection effect and make full use of the load-bearing capacity of the combined truss structure 20, the two rows of threaded holes are preferably symmetrical about the original bamboo pole sleeve part 12 (that is, the two rows of threaded holes are symmetrically arranged about the centerline of the floor slab connecting part 11).

[0043] A clamp 6 is provided on the original bamboo pole 2 near the original bamboo pole sleeve 12. If the installation and limiting effect of the original bamboo pole 2 is achieved solely through the original bamboo hole 121 opened on the original bamboo pole sleeve 12, problems such as the original bamboo pole 2 shifting may occur. Therefore, in this embodiment, the clamp 6 is provided on the original bamboo pole 2 to prevent the problem of the original bamboo pole 2 shifting. The clamp 6 needs to be provided close to the original bamboo pole sleeve 12, and one side of the clamp 6 needs to be tightly attached to the original bamboo pole sleeve 12. Then, the original bamboo pole sleeve 12 blocks the clamp 6, thereby effectively preventing the original bamboo pole 2 from shifting, and thus improving the overall integrity and stability of the floor slab structure.

[0044] The bottom of the original bamboo pole sleeve 12 is also provided with multiple steel strand holes 122, and a steel strand 7 is inserted into each steel strand hole 122. In this embodiment, for truss units subjected to large forces, the bending resistance can be improved by adding steel strands 7 at their lower part. The two ends of the steel strands 7 need to be anchored into the constraint members at the ends of the truss unit. While improving the overall integrity and load-bearing capacity of the composite floor slab, it also serves as a second line to prevent the failure of the entire composite floor slab due to the failure of the original bamboo pole 2.

[0045] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated lightweight steel-bamboo composite truss floor structure, characterized in that, It includes a concrete floor slab (10) and a composite truss structure (20), wherein the concrete floor slab (10) is fixed to the top of the composite truss structure (20); The combined truss structure (20) includes a main truss (201) and a secondary truss (202). Several main trusses (201) are arranged in parallel at equal intervals, and the secondary trusses (202) are spliced ​​between two adjacent main trusses (201). The main truss (201) and the secondary truss (202) are both composed of several steel sleeve components (1) sleeved on the original bamboo pole (2); The main truss (201) and the secondary truss (202) are connected by a splicing assembly (30), which includes a steel sleeve assembly (1) on a main truss (201) and at least one steel sleeve assembly (1) on a secondary truss (202). When the main truss (201) and the secondary truss (202) are spliced, the steel sleeve assembly (1) at the end of the secondary truss (202) is detachably connected to the steel sleeve assembly (1) on the main truss (201); The steel sleeve assembly (1) includes a floor slab connection part (11) and a bamboo pole sleeve part (12). The bamboo pole sleeve part (12) is located at the bottom of the floor slab connection part (11) and is perpendicular to the floor slab connection part (11). The floor slab connection part (11) is fixedly connected to the concrete floor slab (10); The original bamboo pole sleeve part (12) is sleeved on the original bamboo pole (2); The original bamboo pole sleeve part (12) is provided with multiple original bamboo holes (121), and each original bamboo hole (121) is fitted with an original bamboo pole (2).

2. The prefabricated lightweight steel-bamboo composite truss floor structure according to claim 1, characterized in that, In the splicing assembly (30) structure, the steel sleeve assembly (1) at the end of the secondary truss (202) and the steel sleeve assembly (1) on the main truss (201) are both provided with connecting plates (3) on their adjacent sides, and the two adjacent connecting plates (3) are connected by connecting bolts (4).

3. The prefabricated lightweight steel-bamboo composite truss floor structure according to claim 1, characterized in that, The floor slab connection part (11) is provided with two rows of threaded holes, the two rows of threaded holes are symmetrical about the original bamboo pole sleeve part (12), and the concrete floor slab (10) is provided with a number of threaded holes.

4. The prefabricated lightweight steel-bamboo composite truss floor structure according to claim 3, characterized in that, When the concrete floor slab (10) is connected to the floor slab connection part (11), the threaded holes on the concrete floor slab (10) and the floor slab connection part (11) are coaxial and fixedly connected by bolts (5).

5. The prefabricated lightweight steel-bamboo composite truss floor structure according to claim 1, characterized in that, A clamp (6) is provided on the original bamboo pole (2) near the original bamboo pole sleeve (12).

6. The prefabricated lightweight steel-bamboo composite truss floor structure according to claim 1, characterized in that, The bottom of the original bamboo pole sleeve part (12) is also provided with multiple steel strand holes (122), and a steel strand (7) is inserted into each steel strand hole (122).

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