A steel truss floor deck with sound insulation function

Abstract

This utility model belongs to the field of prefabricated building technology, specifically relating to a steel truss floor deck with sound insulation function, including a steel truss and a bottom formwork. The steel truss includes upper chord steel bars, lower chord steel bars, and web steel bars. The bottom formwork is a steel plate with a hollow interlayer filled with a polymer damping material. A main connecting plate and a secondary connecting plate are respectively provided on the left and right sides of the bottom formwork. The main connecting plate is L-shaped, and the secondary connecting plate is an inverted L-shaped plate that cooperates with the main connecting plate. By modifying the steel plate layer of the steel truss floor deck into a double-layer sound-insulating steel plate and filling the steel plate interlayer with polymer damping material, the sound insulation performance of the steel plate is improved, thereby improving the sound insulation performance of the floor slab after construction.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, specifically relating to a steel truss floor deck with sound insulation function. Background Technology

[0002] With the acceleration of urbanization and the continuous development of building technology, modern buildings have placed higher demands on the comprehensive performance of floor slabs, especially in terms of sound insulation, vibration control, and construction efficiency. Traditional steel truss floor slabs, as a widely used floor slab system in prefabricated buildings, are usually composed of steel trusses and single-layer steel plate bottom formwork. Although they have advantages such as convenient construction and strong load-bearing capacity, their sound insulation performance is significantly insufficient, making it difficult to meet increasingly stringent building sound insulation standards and users' needs for living comfort. Utility Model Content

[0003] The purpose of this utility model is to provide a steel truss floor deck with sound insulation function to solve the problems mentioned in the background art.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A steel truss floor deck with sound insulation function includes a steel truss and a bottom formwork. The steel truss includes upper chord steel bars, lower chord steel bars and web steel bars. The bottom formwork is a steel plate with a hollow interlayer. The hollow interlayer is filled with a polymer damping material.

[0006] The bottom template is provided with a main connecting plate and a secondary connecting plate on its left and right sides, respectively. The main connecting plate is L-shaped, and the secondary connecting plate is an inverted L-shaped plate that cooperates with the main connecting plate.

[0007] The main connecting plate has a plurality of linearly distributed mating grooves on its surface, and the secondary connecting plate has mating strips that match the plurality of mating grooves.

[0008] The polymer damping material is a polyurethane composite material.

[0009] The truss is provided with positioning components at both ends. The positioning components consist of connecting rods and positioning plates. The connecting rods are fixedly connected to the truss. The positioning plates are installed at the lower end of the connecting rods and have positioning holes. The bottom template is provided with fixing columns that match the positioning holes.

[0010] The side wall of the fixed column is threaded, and a nut is threadedly connected to the outside of the fixed column.

[0011] This utility model transforms the steel plate layer of the steel truss floor deck into a double-layer sound-insulating steel plate. By filling the steel plate sandwich with a polymer damping material, the sound insulation performance of the steel plate is improved, thereby improving the sound insulation performance of the floor deck after construction. Attached Figure Description

[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a structural schematic diagram of an embodiment of a steel truss floor deck with sound insulation function according to this utility model;

[0014] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a steel truss floor deck with sound insulation function according to this utility model;

[0015] Figure 3 This is a partial structural schematic diagram of an embodiment of a steel truss floor deck with sound insulation function according to this utility model.

[0016] The symbols for the main components are explained below:

[0017] 1. Stiffening truss, 11. Top chord reinforcement, 12. Bottom chord reinforcement, 13. Web reinforcement, 2. Bottom formwork, 201. Polymer damping material, 21. Main connecting plate, 211. Butt groove, 22. Secondary connecting plate, 221. Butt strip, 3. Connecting rod, 31. Position plate, 32. Fixed column, 33. Nut. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-3 As shown, the present invention provides a steel truss floor deck with sound insulation function, including a steel truss 1 and a bottom formwork 2. The steel truss 1 includes an upper chord steel bar 11, a lower chord steel bar 12 and a web steel bar 13. The bottom formwork 2 is a steel plate with a hollow interlayer. The hollow interlayer is filled with a polymer damping material 201.

[0020] The bottom template 2 has a main connecting plate 21 and a secondary connecting plate 22 on its left and right sides, respectively. The main connecting plate 21 is L-shaped, and the secondary connecting plate 22 is an inverted L-shaped that cooperates with the main connecting plate 21.

[0021] The steel plate has a hollow sandwich structure, meaning the steel plate is divided into upper and lower layers. The thickness of the upper and lower steel plates can be designed differently (e.g., the upper layer is 1.8mm and the lower layer is 2.0mm) to optimize frequency response.

[0022] The surface of the steel plate can be pressed with concave and convex textures to increase the sound wave reflection path and improve the sound insulation.

[0023] The steel plate layer of the steel truss floor deck is transformed into a double-layer sound-insulating steel plate. By filling the steel plate sandwich with a polymer damping material, the sound insulation performance of the steel plate is improved, thereby improving the sound insulation performance of the floor after construction.

[0024] The main connecting plate 21 and the secondary connecting plate 22 on the left and right sides of the bottom formwork 2 are respectively set to L-shape and inverted L-shape. When the two bottom formwork 2 are installed together, the secondary connecting plate 22 of the bottom formwork 2 can be fastened on the main connecting plate 21 of the other bottom formwork 2, which can facilitate the assembly and connection of the two steel truss floor decks.

[0025] The main connecting plate 21 has several linearly distributed mating grooves 211 on its surface, and the secondary connecting plate 22 has mating strips 221 that match the mating grooves 211. By providing the mating grooves 211 and the mating strips 221, when the secondary connecting plate 22 of the bottom template 2 is fastened onto the main connecting plate 21 of another bottom template 2, the mating strips 221 will also enter the mating grooves 211.

[0026] This makes the connection between the two bottom formwork pieces 2 tighter and more secure, preventing wobbling between the bottom formwork pieces 2 and improving the stability of the steel truss floor deck after installation.

[0027] The polymer damping material is a polyurethane composite material. It has excellent damping properties, can effectively absorb and dissipate vibration energy, and further improves the sound insulation performance of the steel truss floor deck.

[0028] Positioning components are provided at both ends of the steel truss 1. These components consist of connecting rods 3 and positioning plates 31. The connecting rods 3 are fixedly connected to the steel truss 1, and the positioning plates 31 are installed at the lower end of the connecting rods 3. The positioning plates 31 have positioning holes, and the bottom formwork 2 has fixing columns 32 that match the positioning holes. When positioning and installing the steel truss floor slab, simply align the positioning holes of the positioning plates 31 with the fixing columns 32 of the bottom formwork 2 and insert them. This simple and convenient operation improves the efficiency of steel truss floor slab installation and allows for quick positioning of the steel truss 1. Furthermore, it prevents the steel truss 1 from shifting position during welding to the bottom formwork 2.

[0029] The side wall of the fixed column 32 is threaded, and a nut 33 is threaded to the outside of the fixed column 32. When the positioning hole of the positioning plate 31 is inserted into the fixed column 32, the nut 33 is rotated and moved along the fixed column 32 toward the positioning plate 31 until the nut 33 is tightly attached to the surface of the positioning plate 31. This fixes the positioning plate 31 onto the fixed column 32, making the steel truss floor deck more stable and secure after installation, and preventing shaking.

[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A steel truss floor slab with sound insulation function, comprising a steel truss and a bottom formwork, wherein the steel truss comprises top chord reinforcement, bottom chord reinforcement and web reinforcement, characterized in that: The bottom template is a steel plate, and the steel plate is provided with a hollow interlayer, which is filled with a polymer damping material. The bottom template is provided with a main connecting plate and a secondary connecting plate on its left and right sides, respectively. The main connecting plate is L-shaped, and the secondary connecting plate is an inverted L-shaped plate that cooperates with the main connecting plate.

2. The steel truss floor deck with sound insulation function according to claim 1, characterized in that: The main connecting plate has a plurality of linearly distributed mating grooves on its surface, and the secondary connecting plate has mating strips that match the plurality of mating grooves.

3. A steel truss floor deck with sound insulation function according to claim 1, characterized in that: The polymer damping material is a polyurethane composite material.

4. A steel truss floor deck with sound insulation function according to claim 1, characterized in that: The truss is provided with positioning components at both ends. The positioning components consist of connecting rods and positioning plates. The connecting rods are fixedly connected to the truss. The positioning plates are installed at the lower end of the connecting rods and have positioning holes. The bottom template is provided with fixing columns that match the positioning holes.

5. A steel truss floor deck with sound insulation function according to claim 4, characterized in that: The side wall of the fixed column is threaded, and a nut is threadedly connected to the outside of the fixed column.

Images