Sound and vibration reduction floating floor slab composite structure

Abstract

The utility model discloses a sound insulation and vibration reduction floating building floor combined structure, including setting on the floor is equipped with interface agent layer (1), a plurality of regular arrangement's rubber pad (2) are equipped on interface agent layer (1), a plurality of steel frame keels (3) are equipped on rubber pad (2), and hollow layer (4) is formed between steel frame keel (3) and floor, and sound insulation rock wool (5) is equipped between adjacent steel frame keel (3), and waterproof nylon layer (6), transparent film layer (7) and rubber pad layer (8) are sequentially equipped on sound insulation rock wool (5) from below to top, the rubber pad layer (8) is equipped with reinforced concrete layer (9). The utility model adopts the combination of sound insulation rock wool and steel frame keel, guarantees the performance of sound insulation rock wool, and promotes the structural durability of sound insulation rock wool.

Description

Technical Field

[0001] This utility model relates to the field of floating floor technology, and in particular to a sound-insulating and vibration-damping floating floor composite structure. Background Technology

[0002] Floating floors are constructed by placing a layer of elastic sound insulation, primarily composed of mineral wool, on a reinforced concrete slab before laying the floor slab. Existing technology discloses a floating floor structure for sound insulation and vibration reduction, which achieves sound insulation and vibration reduction through a combination of a concrete pad, horizontal and vertical reinforcing bars, elastic pads, rubber pads, a sound-absorbing cotton layer, steel plates, and compression springs. However, existing technologies have certain shortcomings in practical applications: the sound-absorbing cotton layer is in direct contact with the rubber pads and steel plates, making it prone to compression deformation under long-term loads, further weakening the durability of its sound insulation performance. Utility Model Content

[0003] The purpose of this invention is to provide a sound-insulating and vibration-damping floating floor slab composite structure. This invention uses a combination of sound-insulating rock wool and steel frame keel to ensure the performance of the sound-insulating rock wool and improve its structural durability.

[0004] The technical solution of this utility model is a sound-insulating and vibration-damping floating floor slab composite structure, including an interface agent layer set on the floor slab, a plurality of regularly arranged rubber pads on the interface agent layer, a plurality of steel frame keels on the rubber pads, a hollow layer formed between the steel frame keels and the floor slab, sound-insulating rock wool set between adjacent steel frame keels, and a waterproof nylon layer, a transparent film layer and a rubber pad layer set sequentially from bottom to top on the sound-insulating rock wool; a reinforced concrete layer is set on the rubber pad layer.

[0005] In the aforementioned sound-insulating and vibration-damping floating floor slab composite structure, the steel frame keel is spliced ​​together along its length using connectors.

[0006] In the aforementioned sound-insulating and vibration-damping floating floor slab composite structure, the connecting component includes a main body, and rectangular frames are provided on both sides of the main body and embedded in the ends of the steel frame keel.

[0007] In the aforementioned sound-insulating and vibration-damping floating floor slab composite structure, the side of the steel frame keel is provided with a groove, and a thin sheet is provided in the groove. The lower surface of the thin sheet is in contact with the upper surface of the sound-insulating rock wool.

[0008] In the aforementioned sound-insulating and vibration-damping floating floor slab composite structure, the steel reinforcement frame in the reinforced concrete layer is suspended on the rubber pad layer by pad blocks.

[0009] In the aforementioned sound-insulating and vibration-damping floating floor slab composite structure, the thickness of the waterproof nylon layer ranges from 1.5 mm to 2.5 mm.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. In this utility model, the rubber pad blocks suspend the steel frame keel in the air, forming a hollow layer between it and the floor slab. Sound insulation rock wool is installed in the space between adjacent steel frame keels. The weight load formed by the waterproof nylon layer, transparent film layer, rubber pad layer and reinforced concrete layer will be borne on the steel frame keel, avoiding the sound insulation rock wool from directly bearing the upper load, improving the durability of the structure and ensuring the performance of the sound insulation rock wool.

[0012] 2. Multiple steel frame keels are connected end to end by connectors, which can be quickly assembled on site, improving construction efficiency and making installation convenient and quick. Attached Figure Description

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

[0014] Figure 2 A schematic diagram of the hollow layer;

[0015] Figure 3 This is a schematic diagram of the connector;

[0016] Figure 4 This is a schematic diagram of the pad block.

[0017] The markings in the attached diagram are as follows: 1-Interface agent layer, 2-Rubber pad, 3-Steel frame keel, 4-Hollow layer, 5-Sound insulation rock wool, 6-Waterproof nylon layer, 7-Transparent film layer, 8-Rubber pad layer, 9-Reinforced concrete layer, 10-Connector, 11-Main sheet, 12-Rectangular frame, 13-Groove, 14-Sheet, 15-Padded block. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A sound-insulating and vibration-damping floating floor slab composite structure, including an interface agent layer 1 disposed on the floor slab, as shown in the attached figure. Figure 1 As shown, the interface agent penetrates into the micropores of the base floor slab surface. Simultaneously, its high-molecular-weight active ingredients react chemically with cement hydration products to form a calcium silicate gel network, improving the flatness and sealing of the base layer. Multiple regularly arranged rubber pads 2 are installed on the interface agent layer 1. The rubber pads have a square structure. When arranging the rubber pads, the positions are first marked on the floor slab before installing the pads. Multiple steel frame joists 3 are installed on the rubber pads 2. The rubber pads lift the steel frame joists, forming a hollow layer 4 between the steel frame joists 3 and the floor slab, as shown in the attached diagram. Figure 2As shown, the air within the hollow layer is a low-rigidity medium. When sound waves propagate to this area, the vibration of air molecules consumes sound energy, especially effectively blocking mid-to-high frequency noises (such as footsteps and equipment operation sounds). This air-layer sound insulation principle can compensate for the shortcomings of traditional sound-absorbing cotton layers in absorbing high-frequency sound waves, and works synergistically with sound-insulating rock wool to improve overall sound insulation performance. When the floor is subjected to loads or vibrations, the air in the hollow layer can generate a buffering effect through compression and expansion, reducing the transmission of vibrations to the base floor slab. Sound-insulating rock wool 5 is embedded between adjacent steel frame keels 3. The porous structure inside the sound-insulating rock wool 5 causes the air to vibrate in the pores when sound waves are incident, converting sound energy into heat energy through friction, viscous resistance, and thermal conduction between fibers, thus exhibiting high absorption efficiency for mid-to-high frequency noises such as human voices, equipment operation sounds, and footsteps. From bottom to top, a waterproof nylon layer 6, a transparent membrane layer 7, and a rubber pad layer 8 are laid on the sound-insulating rock wool 5. The waterproof nylon layer is made of high-density nylon fiber weaving or coated with a waterproof coating, which has strong water tightness and can prevent moisture or ambient moisture from the upper concrete pouring from seeping into the sound-insulating rock wool layer. The thickness of the waterproof nylon layer 6 ranges from 1.5 mm to 2.5 mm, and 2 mm is generally selected. The transparent membrane layer is usually a transparent film of polyethylene or polyester, which covers the surface or interlayer of the structure and can block dust and particulate matter in the air from entering the rock wool or hollow layer, keep the inside clean, and prevent pore blockage from affecting the sound absorption performance. A reinforced concrete layer 9 is laid on the rubber pad layer 8. The rubber pad layer can buffer the load of the upper layer and reduce solid-borne sound transmission.

[0020] The steel frame keel 3 is formed by splicing together the steel frame keel 3 along its length using connectors 10, as shown in the attached figure. Figure 3 As shown, the connector 10 includes a main body 11, with rectangular frames 12 embedded in the ends of the steel frame keel 3 on both sides of the main body 11. Multiple steel frame keels are connected end-to-end via the connector, allowing for rapid on-site assembly, improving construction efficiency, and facilitating quick and easy installation. The side of the steel frame keel 3 has a groove 13, within which a thin sheet 14 is located. The lower surface of the thin sheet 14 is in contact with the upper surface of the sound-insulating rock wool 5, compressing and limiting the position of the sound-insulating rock wool to maintain its stability. The reinforcing steel frame within the reinforced concrete layer 9 is suspended on the rubber pad layer 8 via spacers 15, as shown in the attached diagram. Figure 4 As shown, the spacers are made of cement mortar, plastic or fiber-reinforced materials and are laid under or on both sides of the reinforcing bars to maintain the specified distance between the reinforcing bars and the formwork, prevent the reinforcing bars from shifting during concrete pouring, and ensure the structural bearing capacity.

[0021] The working principle of this utility model is as follows: Before installing the steel frame keel 3, an interface agent layer 1 needs to be coated on the floor slab base. Then, the rubber pad 2 suspends the steel frame keel 3, forming a hollow layer 4 between it and the floor slab. Sound-insulating rock wool 5 is installed in the space between adjacent steel frame keels 3. There is a height difference between the upper surface of the suspended steel frame keel 3 and the floor slab. The sound-insulating rock wool 5 is thickened. By using the composite structure of the hollow layer 4 formed by the thickened sound-insulating rock wool 5 and the steel frame keel 3, a dual noise reduction system of air buffering and fiber sound absorption is constructed, which greatly improves the sound insulation. Secondly, the support structure of the rubber pad 2 and the steel frame keel 3 prevents the sound-insulating rock wool 5 from directly bearing the upper load, thus improving the durability of the structure. A waterproof nylon layer 66, a transparent film layer 77, and a rubber pad layer 88 are laid on the sound-insulating rock wool 5, which has a good waterproof and vibration reduction effect on the entire floor slab structure.

Claims

1. A sound-insulating and vibration-damping floating floor slab composite structure, characterized in that: The system includes an interface agent layer (1) set on the floor slab, on which multiple regularly arranged rubber pads (2) are provided, and multiple steel frame keels (3) are provided on the rubber pads (2). A hollow layer (4) is formed between the steel frame keels (3) and the floor slab. Sound insulation rock wool (5) is provided between adjacent steel frame keels (3). A waterproof nylon layer (6), a transparent membrane layer (7) and a rubber pad layer (8) are provided on the sound insulation rock wool (5) from bottom to top. A reinforced concrete layer (9) is provided on the rubber pad layer (8).

2. The sound-insulating and vibration-damping floating floor slab composite structure according to claim 1, characterized in that: The steel frame keel (3) is spliced ​​together along its length by connectors (10).

3. The sound-insulating and vibration-damping floating floor slab composite structure according to claim 2, characterized in that: The connector (10) includes a main body (11), and rectangular frames (12) are provided on both sides of the main body (11) and embedded in the ends of the steel frame keel (3).

4. The sound-insulating and vibration-damping floating floor slab composite structure according to claim 1, characterized in that: The steel frame keel (3) has a groove (13) on its side, and a thin sheet (14) is provided in the groove (13). The lower surface of the thin sheet (14) is in contact with the upper surface of the sound insulation rock wool (5).

5. The sound-insulating and vibration-damping floating floor slab composite structure according to claim 1, characterized in that: The steel reinforcement frame in the reinforced concrete layer (9) is suspended on the rubber pad layer (8) by a pad block (15).

6. The sound-insulating and vibration-damping floating floor slab composite structure according to claim 1, characterized in that: The thickness of the waterproof nylon layer (6) ranges from 1.5 mm to 2.5 mm.

Images