Steel pipe truss prestressed concrete laminated slab

Abstract

The utility model relates to the technical field of building materials, and discloses a steel pipe truss prestressed concrete laminated slab, which comprises a plurality of prestressed reinforcements, a plurality of transverse reinforcements are uniformly distributed on the prestressed reinforcements, the transverse reinforcements are perpendicular to the prestressed reinforcements, trusses are arranged on the prestressed reinforcements in a penetrating manner, and the trusses are arranged on the prestressed reinforcements in a penetrating manner. The two trusses form a group, the two trusses in the same group are arranged between the two corresponding transverse reinforcing steel bars, the trusses are wavy, each wave trough of the trusses corresponds to one prestressed reinforcing steel bar, steel pipes are jointly welded on the wave crests of all the trusses between the two adjacent prestressed reinforcing steel bars, and the steel pipes are welded on the wave crests of all the trusses between the two adjacent prestressed reinforcing steel bars. According to the device, the problems that a web component is complex in structure, not easy to produce and tedious in positioning during manufacturing are solved, the accuracy and stability of the relative positions of all the structures are guaranteed, and the manufacturing efficiency and the finished product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, and more specifically, to a steel tube truss prestressed concrete composite plate. Background Art

[0002] Steel tube truss prestressed concrete composite slab refers to a prestressed prestressed concrete prefabricated bottom plate that uses "grouting steel tube truss" as stiffening ribs. After being assembled on site, reinforcement is arranged on the prefabricated bottom plate, and concrete is poured on site to form a composite floor. It is widely used in the modern construction industry because of its moderate rigidity, no or few supports, wide application range, and flexible selection.

[0003] The Chinese invention patent with application number 202311596466.8 discloses a grouting corrugated steel tube truss prestressed concrete composite slab and construction method. The truss is a number of individual web components, which reduces the overall weight of the composite slab, and the joints between the web components and the steel bars and steel pipes are provided with clamping devices to facilitate the connection and fixation during the production process. However, the structure of the web components is relatively complex and inconvenient to manufacture, and it is not easy to accurately position a single web component when it is fixed on the base plate, which affects the production efficiency and the quality of the finished composite slab. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a steel tube truss prestressed concrete composite slab with high production efficiency and stable finished product quality.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel tube truss prestressed concrete composite plate comprises a plurality of prestressed steel bars, a plurality of transverse steel bars are evenly arranged on the plurality of prestressed steel bars, the transverse steel bars and the prestressed steel bars are arranged perpendicular to each other, trusses are passed through the prestressed steel bars, the trusses are arranged in parallel with the transverse steel bars and correspond to the transverse steel bars one by one, two trusses form a group, and the two trusses in the same group are arranged between two corresponding transverse steel bars, the trusses are wavy, each trough of the trusses corresponds to a prestressed steel bar, steel tubes are welded together on the crests of all trusses between two adjacent prestressed steel bars, and a concrete bottom plate is wrapped on the prestressed steel bars and the transverse steel bars.

[0007] The utility model is further configured as follows: the truss includes a web, the web connects the wave crest and the wave trough, the wave crest of the truss is a supporting portion, the supporting portion is provided with an arc-shaped depression, the arc center of the arc-shaped depression falls on the axis of the steel pipe, and the steel pipe fits the supporting portion.

[0008] The utility model is further configured as follows: the supporting parts of the two trusses in the same group are fitted together, and the connection points between the trusses and the steel pipes are welding points, and the welding points jointly connect the steel pipes and the corresponding two supporting parts.

[0009] The utility model is further configured as follows: the trough of the truss is a force transmission part, the force transmission part is curved, the plane where the force transmission part is located is parallel to the prestressed steel bar, and the prestressed steel bar covers and presses on the force transmission part.

[0010] The advantages of the utility model are:

[0011] 1. The truss is an integrated structure formed by bending a whole steel bar, which is easy to manufacture and can ensure that the dimensions of all truss structures are the same, making it easy to position, improving the accuracy of steel pipe installation and ensuring the quality of the finished product;

[0012] 2. The supporting part of the truss is provided with an arc-shaped depression. During installation, the steel pipe fits in the arc-shaped depression, which ensures the stability of the position of the steel pipe during the production process and the quality of the finished product. The two supporting parts of the same group fit each other, so that the steel pipe and the two supporting parts can be connected and fixed to each other through two welding points. The supporting effect is stable and it is easy to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 The top view shown;

[0015] Figure 3 for Figure 1 An enlarged view of part A is shown;

[0016] Figure 4 for Figure 1 Right side view shown;

[0017] Figure 5 for Figure 1 The front view shown;

[0018] In the figure: 1. concrete base plate; 2. prestressed steel bars; 3. transverse steel bars; 4. truss; 41. force transmission part; 42. web member; 43. supporting part; 5. steel pipe; 6. welding point. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0022] See also Figure 1-5 , the utility model provides the following technical solutions:

[0023] A steel tube truss prestressed concrete composite plate, comprising a plurality of prestressed steel bars 2, a plurality of transverse steel bars 3 are evenly arranged on the plurality of prestressed steel bars 2, the transverse steel bars 3 and the prestressed steel bars 2 are arranged perpendicular to each other, a truss 4 is passed through the prestressed steel bars 2, the truss 4 is arranged in parallel with the transverse steel bars 3 and corresponds to the transverse steel bars 3 one by one, two trusses 4 form a group, two trusses 4 of the same group are arranged between two corresponding transverse steel bars 3, the truss 4 is wavy, the truss 4 is an integrated structure formed by bending steel bars, the bending angle of which is controlled by a bending machine, the forming speed is fast, and the bending accuracy is high, which is convenient for the subsequent production of composite plates;

[0024] Each trough of the truss 4 corresponds to a prestressed steel bar 2, and the crest of the truss 4 is between two adjacent prestressed steel bars 2. Steel pipes 5 are welded together on the crests of all trusses 4 between two adjacent prestressed steel bars 2, that is, all crests on the same longitudinal line, and a concrete base plate 1 is wrapped on the prestressed steel bars 2 and the transverse steel bars 3.

[0025] The truss 4 includes a web 42, which connects the wave crest and the wave trough. The wave crest of the truss 4 is a supporting portion 43, and the supporting portion 43 is provided with an arc-shaped depression. The arc center of the arc-shaped depression falls on the axis of the steel pipe 5. The steel pipe 5 fits with the supporting portion 43, which ensures the stability of the placement of the steel pipe 5, makes it difficult for the steel pipe 5 to slide during welding, is easy to manufacture, and increases the contact area of ​​the truss 4 to the steel pipe 5, improves the connection performance, and makes the truss 4 have better support for the steel pipe 5.

[0026] The supporting parts 43 of the same group of two trusses 4 fit together, so that several wave peaks of the two trusses 4 are pressed against each other to form a triangular support, thereby improving the supporting performance of the truss 4 on the steel pipe 5; the connection point between the truss 4 and the steel pipe 5 is a welding point 6, and the two sides of the connection between the two supporting parts 43 and the steel pipe 5 are welded to form welding points 6, that is, the two supporting parts 43 and the steel pipe 5 can be connected and fixed through two welding points 6, which is convenient to manufacture.

[0027] The trough of the truss 4 is the force transmission part 41, and the force transmission part 41 is curved. The plane where the force transmission part 41 is located is parallel to the prestressed steel bar 2. When the steel pipe 5 is subjected to force, the load transmitted to the concrete base plate 1 can be dispersed through the force transmission part 41, thereby improving the usability of the composite plate. The prestressed steel bar 2 covers the force transmission part 41, thereby ensuring that the composite plate has good tensile and compressive resistance in the vertical direction, thereby ensuring the quality of the finished product.

[0028] Specifically, the truss 4 is an integrated structure formed by bending a whole steel bar, which is easy to manufacture and can ensure that the structural dimensions of all trusses 4 are the same, which is convenient for positioning, improves the accuracy of the installation of the steel pipe 5, and ensures the quality of the finished product;

[0029] The supporting portion 43 of the truss 4 is provided with an arc-shaped depression. During installation, the steel pipe 5 fits in the arc-shaped depression, which ensures the stability of the position of the steel pipe 5 during the manufacturing process and the quality of the finished product. The two supporting portions 43 of the same group fit together, so that the steel pipe 4 and the two supporting portions 43 can be connected and fixed to each other through two welding points 6, so that the supporting effect is stable and the manufacturing is convenient.

[0030] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar opposites, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steel tube truss prestressed concrete composite slab, comprising a plurality of prestressed steel bars (2), characterized in that: A plurality of transverse steel bars (3) are evenly arranged on the plurality of prestressed steel bars (2), the transverse steel bars (3) and the prestressed steel bars (2) are arranged perpendicular to each other, a truss (4) is passed through the prestressed steel bars (2), the truss (4) is arranged parallel to the transverse steel bars (3) and corresponds to the transverse steel bars (3) one by one, two trusses (4) form a group, and the two trusses (4) in the same group are arranged between the two corresponding transverse steel bars (3), the truss (4) is wavy, each trough of the truss (4) corresponds to a prestressed steel bar (2), and a steel pipe (5) is welded to the wave crests of all the trusses (4) between two adjacent prestressed steel bars (2), and a concrete bottom plate (1) is wrapped on the prestressed steel bars (2) and the transverse steel bars (3).

2. The steel tube truss prestressed concrete composite slab according to claim 1, characterized in that: The truss (4) comprises a web (42), wherein the web (42) connects the wave crest and the wave trough, the wave crest of the truss (4) is a supporting portion (43), the supporting portion (43) is provided with an arc-shaped depression, the arc center of the arc-shaped depression falls on the axis of the steel pipe (5), and the steel pipe (5) is in contact with the supporting portion (43).

3. The steel tube truss prestressed concrete composite slab according to claim 2, characterized in that: The supporting parts (43) of the two trusses (4) in the same group are fitted together, and the connection point between the trusses (4) and the steel pipes (5) is a welding point (6), and the welding point (6) jointly connects the steel pipes (5) and the corresponding two supporting parts (43).

4. The steel tube truss prestressed concrete composite slab according to claim 3, characterized in that: The trough of the truss (4) is a force transmission part (41), the force transmission part (41) is curved, the plane where the force transmission part (41) is located is parallel to the prestressed steel bar (2), and the prestressed steel bar (2) covers and presses on the force transmission part (41).

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