A modular spliced ​​fine aggregate concrete reinforced truss floor deck

Abstract

This invention relates to the field of building construction technology and discloses a modular splicing fine aggregate concrete reinforced concrete truss floor deck, comprising a fine aggregate concrete base slab, a lower chord reinforcement bar on the surface of the base slab, a connector fixedly connected to the surface of the lower chord reinforcement bar, a web reinforcement bar fixedly connected to the middle of the surface of the connector, and an upper chord reinforcement bar fixedly connected to the top of the connector. This modular splicing fine aggregate concrete reinforced concrete truss floor deck, through the setting of an installation mechanism, utilizes a first installation component and a second installation component to interlock with the lower chord reinforcement bar, and combines a first limiting plate and a second limiting plate for lateral positioning, and then achieves threaded locking through a first fixing bolt and a second fixing bolt, so that a detachable fixed connection is formed between the reinforcement truss and the fine aggregate concrete base slab. This ensures connection strength while enabling rapid assembly and disassembly, facilitating component transportation, on-site adjustment, and subsequent maintenance, significantly improving construction efficiency and reusability.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a modular spliced ​​fine aggregate concrete steel truss floor deck. Background Technology

[0002] In the field of building construction, reinforced steel truss floor decks, as a composite floor structure, are widely used in multi-story and high-rise buildings. Traditional reinforced steel truss floor decks are typically constructed using on-site rebar tying, formwork erection, and concrete pouring. This process is cumbersome, time-consuming, and the accuracy of rebar positioning is difficult to control, affecting the structural load-bearing performance. In recent years, precast reinforced steel truss floor deck products combining a steel truss and a concrete base slab have emerged. However, most of these are fixed by integral casting or welding, leading to difficulties in component transportation and hoisting, poor on-site splicing flexibility, and difficulty in achieving modular production and rapid disassembly. Furthermore, existing floor decks suffer from insufficient reliability in the connection between the steel truss and the concrete base slab during installation, easily resulting in relative slippage or misalignment, affecting the integrity and load-bearing capacity of the floor slab. Simultaneously, the lack of effective restraint structures causes rebar displacement during construction, reducing construction quality. Therefore, there is an urgent need for a modular splicing reinforced steel truss floor deck with a simple structure, convenient installation and disassembly, strong connections, and precise positioning to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a modular spliced ​​fine aggregate concrete reinforced truss floor deck to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular spliced ​​fine aggregate concrete reinforced truss floor deck, comprising a fine aggregate concrete base slab, wherein a lower chord reinforcement is provided on the surface of the fine aggregate concrete base slab, a connector is fixedly connected to the surface of the lower chord reinforcement, a web reinforcement is fixedly connected to the middle of the surface of the connector, an upper chord reinforcement is fixedly connected to the top of the connector, a limiting mechanism is provided on the surface of the upper chord reinforcement, and an installation mechanism is provided on one side of the limiting mechanism; The installation mechanism includes a second limiting plate, which is fixedly connected to the top of the fine stone concrete base plate. The second limiting plate is located between two lower chord reinforcing bars. Second mounting parts are provided on both sides of the second limiting plate, and the second mounting parts are inserted into the surface of the lower chord reinforcing bars.

[0005] Preferably, the second mounting component has a threaded hole, and a second fixing bolt is threaded into the threaded hole. The second fixing bolt is threaded into the fine aggregate concrete base plate, and the second mounting component is fixedly connected to the fine aggregate concrete base plate by the second fixing bolt, which enhances the bonding strength between the second mounting component and the base plate, prevents the second mounting component from loosening or falling off during use, and improves the stability and safety of the overall structure.

[0006] Preferably, a first limiting plate is fixedly connected to both sides of the top of the fine aggregate concrete base plate. A limiting groove is opened on both sides of the first limiting plate, and a first mounting component is inserted into the limiting groove. The first mounting component is inserted into the surface of the lower chord reinforcement. The lower chord reinforcement is laterally limited and positioned by the first mounting component and its limiting groove, ensuring that the lower chord reinforcement is accurately positioned on the base plate, which facilitates subsequent splicing and fixing, and improves installation efficiency.

[0007] Preferably, threaded holes are provided in both the first limiting plate and the first mounting component. A first fixing bolt is threaded into the threaded hole. The first limiting plate and the first mounting component are fixedly connected by the first fixing bolt, which further enhances the limiting effect of the first limiting plate on the lower chord reinforcing bar, prevents the reinforcing bar from displacing under stress, and ensures the integrity and load-bearing capacity of the structure.

[0008] Preferably, two first limiting plates are provided, and the two first limiting plates are symmetrically arranged. The two symmetrically arranged first limiting plates can limit the lower chord steel bars on both sides, distribute the force evenly, avoid the steel bars from tilting when subjected to force on one side, and improve the symmetry and stability of the structure.

[0009] Preferably, the limiting mechanism includes a support member disposed at the bottom of the upper chord reinforcement, and a stabilizing member fixedly connected to the bottom of the support member, the stabilizing member being disposed at the top of the fine aggregate concrete base slab. The support member provides bottom support for the upper chord reinforcement, while the stabilizing member transmits the supporting force to the fine aggregate concrete base slab, forming a vertical limiting and support for the steel truss, preventing the truss from sinking or deforming during construction or use.

[0010] Preferably, the bottom of the stabilizing member is fixedly connected to a fixing seat, which is fixedly connected to the top of the fine stone concrete base plate. The fixing seat serves as the connection base between the stabilizing member and the base plate, increasing the contact area with the base plate, dispersing the load, improving the installation firmness of the stabilizing member, and further enhancing the overall stability and durability of the limiting mechanism.

[0011] Compared with the prior art, the present invention provides a modular spliced ​​fine aggregate concrete reinforced truss floor deck, which has the following beneficial effects: This modular spliced ​​fine aggregate concrete steel truss floor slab, through the setting of an installation mechanism, utilizes the first and second installation components to interlock with the lower chord steel bars, and combines the first and second limiting plates for lateral positioning. Then, the first and second fixing bolts are used to achieve threaded locking, so that the steel truss and the fine aggregate concrete base slab form a detachable fixed connection. This not only ensures the connection strength, but also enables rapid assembly and disassembly, which facilitates component transportation, on-site adjustment and subsequent maintenance, and significantly improves construction efficiency and reusability.

[0012] This modular spliced ​​fine aggregate concrete steel truss floor slab, through the setting of a limiting mechanism, supports the upper chord steel bars, while the stabilizing components and fixing seats are fixed to the top of the fine aggregate concrete base slab. During the installation of the steel truss, it can initially limit and guide the entire truss, prevent the steel bars from shifting or tilting laterally, and ensure the accurate spatial position of the upper chord steel bars, web steel bars and lower chord steel bars, thereby improving the stress uniformity and structural safety of the floor slab after it is formed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the steel truss structure. Figure 4 This is a schematic diagram of the installation mechanism of the present invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the limiting mechanism of the present invention.

[0014] In the diagram: 1. Fine aggregate concrete base slab; 2. Installation mechanism; 21. First installation component; 22. First limiting plate; 23. First fixing bolt; 24. Second limiting plate; 25. Second installation component; 26. Second fixing bolt; 3. Limiting mechanism; 31. Support component; 32. Stabilizing component; 33. Fixing seat; 4. Top chord reinforcement; 5. Web reinforcement; 6. Bottom chord reinforcement; 7. Connecting component. Detailed Implementation

[0015] 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.

[0016] This invention provides a technical solution: Example 1: Combination Figures 1-5A modular splicing fine stone concrete reinforced truss floor deck includes a fine stone concrete base slab 1, a lower chord steel bar 6 is provided on the surface of the fine stone concrete base slab 1, a connector 7 is fixedly connected to the surface of the lower chord steel bar 6, a web steel bar 5 is fixedly connected to the middle of the surface of the connector 7, an upper chord steel bar 4 is fixedly connected to the top of the connector 7, a limit mechanism 3 is provided on the surface of the upper chord steel bar 4, and an installation mechanism 2 is provided on one side of the limit mechanism 3. The installation mechanism 2 includes a second limiting plate 24, which is fixedly connected to the top of the fine stone concrete base plate 1. The second limiting plate 24 is located between two lower chord steel bars 6. Second installation parts 25 are provided on both sides of the second limiting plate 24 and are inserted into the surface of the lower chord steel bars 6.

[0017] Furthermore, the second mounting component 25 has a threaded hole, and a second fixing bolt 26 is threaded into the threaded hole. The second fixing bolt 26 is threaded into the fine stone concrete base plate 1. The second mounting component 25 is fixedly connected to the fine stone concrete base plate 1 by the second fixing bolt 26, which enhances the bonding strength between the second mounting component 25 and the base plate, prevents the second mounting component 25 from loosening or falling off during use, and improves the stability and safety of the overall structure.

[0018] Furthermore, a first limiting plate 22 is fixedly connected to both sides of the top of the fine aggregate concrete base slab 1. A limiting groove is opened on both sides of the first limiting plate 22, and a first mounting component 21 is inserted into the limiting groove. The first mounting component 21 is inserted into the surface of the lower chord steel bar 6. The first mounting component 21 and its limiting groove realize the lateral limiting and positioning of the lower chord steel bar 6, ensuring that the position of the lower chord steel bar 6 on the base slab is accurate, which facilitates subsequent splicing and fixing, and improves installation efficiency.

[0019] Furthermore, threaded holes are provided in both the first limiting plate 22 and the first mounting component 21, and a first fixing bolt 23 is threaded into the threaded hole. The first limiting plate 22 and the first mounting component 21 are fixedly connected by the first fixing bolt 23, which further enhances the limiting effect of the first limiting plate 22 on the lower chord steel bar 6, prevents the steel bar from displacing when under stress, and ensures the integrity and load-bearing capacity of the structure.

[0020] Furthermore, two first limiting plates 22 are provided, and the two first limiting plates 22 are symmetrically arranged. The two symmetrically arranged first limiting plates 22 can limit the lower chord steel bar 6 on both sides, distribute the force evenly, avoid the steel bar from tilting when it is under force on one side, and improve the symmetry and stability of the structure.

[0021] Example 2: See Figure 6Furthermore, based on Embodiment 1, the limiting mechanism 3 further includes a support member 31, which is disposed at the bottom of the upper chord steel bar 4. A stabilizing member 32 is fixedly connected to the bottom of the support member 31, and the stabilizing member 32 is disposed at the top of the fine aggregate concrete base slab 1. The support member 31 provides bottom support for the upper chord steel bar 4, while the stabilizing member 32 transmits the supporting force to the fine aggregate concrete base slab 1, forming a vertical limiting and support for the steel truss, preventing the truss from sinking or deforming during construction or use.

[0022] Furthermore, a fixing seat 33 is fixedly connected to the bottom of the stabilizing member 32. The fixing seat 33 is fixedly connected to the top of the fine stone concrete base plate 1. The fixing seat 33 serves as the connection base between the stabilizing member 32 and the base plate, increasing the contact area with the base plate, dispersing the load, improving the installation firmness of the stabilizing member 32, and further enhancing the overall stability and durability of the limiting mechanism 3.

[0023] In actual operation, the steel truss is first placed on top of the fine aggregate concrete base slab 1. Then, the first mounting piece 21 is inserted into the limiting groove inside the first limiting plate 22. Next, the first fixing bolt 23 is threaded into the overlapping threaded hole. Then, the second mounting piece 25 is inserted into the surface of the lower chord steel bar 6, at which point the second mounting piece 25 is located on both sides of the second limiting plate 24. Finally, the second fixing bolt 26 is threaded into the overlapping threaded hole, thus achieving the purpose of installing the steel truss. Based on the above principle, repeating the reverse steps allows the steel truss to be disassembled from the surface of the fine aggregate concrete base slab 1. During the installation of the steel truss, the top chord steel bar 4 is located inside the support member 31, and the stabilizing member 32 can initially limit the steel truss.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A modular spliced reinforced screed steel truss floor panel comprising a screed base plate (1) characterised in that: The surface of the fine stone concrete base plate (1) is provided with a lower chord steel bar (6), a connector (7) is fixedly connected to the surface of the lower chord steel bar (6), a web steel bar (5) is fixedly connected to the middle of the surface of the connector (7), an upper chord steel bar (4) is fixedly connected to the top of the connector (7), a limiting mechanism (3) is provided on the surface of the upper chord steel bar (4), and an installation mechanism (2) is provided on one side of the limiting mechanism (3). The installation mechanism (2) includes a second limiting plate (24), which is fixedly connected to the top of the fine stone concrete base plate (1). The second limiting plate (24) is located between two lower chord steel bars (6). Second installation parts (25) are provided on both sides of the second limiting plate (24), and the second installation parts (25) are inserted into the surface of the lower chord steel bars (6).

2. The modular spliced reinforced screed deck of claim 1, wherein: The second mounting component (25) has a threaded hole, and a second fixing bolt (26) is threaded into the threaded hole. The second fixing bolt (26) is threaded into the fine stone concrete base plate (1).

3. The modular spliced ​​fine aggregate concrete reinforced truss floor decking according to claim 1, characterized in that: The fine stone concrete base plate (1) is fixedly connected to the top two sides of the first limiting plate (22). The first limiting plate (22) has a limiting groove on both sides. The first mounting part (21) is inserted into the limiting groove and is inserted into the surface of the lower chord steel bar (6).

4. A modular spliced ​​fine aggregate concrete reinforced truss floor deck according to claim 3, characterized in that: Both the first limiting plate (22) and the first mounting part (21) are provided with threaded holes, and the first fixing bolt (23) is threadedly connected in the threaded holes.

5. A modular spliced ​​fine aggregate concrete reinforced truss floor deck according to claim 4, characterized in that: The number of the first limiting plate (22) is two, and the two first limiting plates (22) are arranged symmetrically.

6. A modular spliced ​​fine aggregate concrete reinforced truss floor deck according to claim 1, characterized in that: The limiting mechanism (3) includes a support member (31), which is located at the bottom of the upper chord steel bar (4). A stabilizing member (32) is fixedly connected to the bottom of the support member (31), and the stabilizing member (32) is located at the top of the fine stone concrete base plate (1).

7. A modular spliced ​​fine aggregate concrete reinforced truss floor deck according to claim 6, characterized in that: The bottom of the stabilizing member (32) is fixedly connected to a fixing seat (33), which is fixedly connected to the top of the fine stone concrete base plate (1).

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