Fabricated sound insulation floor slab and assembly process

Abstract

The invention provides an assembly type sound insulation floor slab and an assembly technology, and relates to the technical field of assembly type floor slabs, the assembly type sound insulation floor slab comprises a concrete solid main plate, the upper side and the lower side of the concrete solid main plate are each provided with a built-in plate layer, and a plurality of sound absorption matching openings penetrating through the bottom end face of the built-in plate layer are evenly distributed in the top end face of the built-in plate layer; one sound absorption matching piece is placed in each complete sound absorption matching opening, so that when sound waves enter, the sound waves can be reflected and scattered on the wall surfaces of the sound absorption matching openings and the surfaces of the sound absorption matching pieces for multiple times, the number of pores of the whole structure is increased, and the complexity of the whole structure is increased; the sound wave propagation path is more complex, the opportunity of interaction with materials is increased, more sound energy is consumed in the reflection and scattering process, the floor is further assisted to achieve the sound insulation function, and the problems that a traditional building floor lacks an effective sound absorption and silencing mechanism and cannot give full play to the acoustic characteristics of the materials are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of assembled floor slabs, and in particular to an assembled sound insulation floor slab and an assembly process thereof. Background Art

[0002] With the rapid development of modern building technology and people's increasing requirements for the quality of living and working environment, the performance of building floors has become one of the key areas of focus in building design and construction. Among many performance indicators, sound insulation performance is particularly critical, which directly affects the acoustic environment of the building's interior space and the living and working comfort of users.

[0003] In the construction of traditional building floors, solid concrete slabs or simple composite structures are usually used. These traditional floor structures have many limitations in terms of sound insulation. On the one hand, although the mass density of the solid concrete slab itself is relatively large, it can block the propagation of some sounds to a certain extent, but the insulation effect for medium and high frequency sounds is not ideal. Due to its relatively dense internal structure, there is a lack of effective sound absorption and silencer mechanisms when sound waves propagate in it, which makes it easy for sound to be directly transmitted through the floor to the adjacent floors, causing noise interference problems. On the other hand, simple composite structure floors often fail to give full play to the acoustic properties of each material due to unreasonable material selection and combination methods, and there are obvious deficiencies in the coordinated optimization of sound absorption and sound insulation performance. Summary of the invention

[0004] The invention relates to an assembled sound insulation floor slab, which solves the problem that traditional building floors lack an effective sound absorption and noise reduction mechanism and cannot give full play to the acoustic properties of materials.

[0005] The present invention provides an assembled sound insulation floor, which specifically comprises: a concrete solid main board, a steel bar layer composed of stress-bearing steel bars and distribution steel bars is laid inside the concrete solid main board, an internal board layer is arranged on the upper side and the lower side of the concrete solid main board, the internal board layer adopts a wooden board structure, the top surface of the internal board layer is evenly distributed with a plurality of sound-absorbing matching openings penetrating the bottom surface thereof, and the sound-absorbing matching openings are in a hexagonal structure; a sound-absorbing matching piece is placed in each complete sound-absorbing matching opening, and the sound-absorbing matching piece is made of glass fiber wool.

[0006] Furthermore, the sound-absorbing matching piece adopts a spherical structure, and the diameter of the sound-absorbing matching piece is smaller than the structural size of the sound-absorbing matching opening.

[0007] Furthermore, the concrete solid main board and the two built-in board layers are bonded and fixedly connected via a group of sound-absorbing layers, and the sound-absorbing layers are made of mineral wool.

[0008] Furthermore, the sound absorbing layer completely seals and covers the contact end surfaces of the concrete solid main board and the built-in board layer.

[0009] Furthermore, a group of reinforcing layers are fixedly bonded to the top end surface of the built-in board layer located on the upper side and the bottom end surface of the built-in board layer located on the lower side, and the reinforcing layers are made of carbon fiber material.

[0010] Furthermore, the reinforcement layer completely seals and covers the contact end surface with the built-in board layer.

[0011] The present invention provides an assembled sound insulation floor and an assembly process, which have the following beneficial effects:

[0012] The present invention forms a wooden honeycomb board structure through the coordinated design of built-in board layers and sound-absorbing matching openings, which is beneficial for when sound waves enter, they pass through the tiny pores inside the wooden material, causing the sound waves to vibrate with the air in the pores after entering, so that the air and the wood cell wall friction consumes sound energy, and the sound-absorbing matching openings with a hexagonal structure can make the sound reflect multiple times, and each reflection has part of the sound energy absorbed or changes the propagation direction, and each sound-absorbing matching opening can be regarded as a small resonance cavity. When the external sound frequency is close to its natural frequency, resonance occurs to absorb sound energy, thereby achieving a sound-absorbing effect, and assisting the floor to achieve a sound insulation function.

[0013] A spherical sound-absorbing fitting made of glass fiber cotton is placed in each complete sound-absorbing fitting opening of the present invention, and each complete sound-absorbing fitting opening is in a sealed environment. Therefore, when sound waves enter, they will be reflected and scattered multiple times on the wall surface of the sound-absorbing fitting opening and the surface of the sound-absorbing fitting, increasing the number and complexity of pores in the overall structure, making the sound wave propagation path more complicated, increasing the opportunity for interaction with the material, and more sound energy is consumed in the process of reflection and scattering, thereby improving the sound absorption effect and further assisting the floor slab to achieve the sound insulation function.

[0014] The sound-absorbing layer of the present invention is made of mineral wool, which cooperates with the built-in board layer and the sound-absorbing matching parts to achieve sound absorption. The high porosity of the mineral wool fiber provides a large number of channels for the entry of sound waves, and can effectively absorb sounds in a wider frequency range. After the sound waves enter the pores through its loose porous structure, the air molecules vibrate and rub against the mineral wool fiber wall, converting the sound energy into heat energy to consume the sound energy, thereby achieving the effect of sound absorption, and further assisting the floor slab to achieve the sound insulation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0016] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1The schematic diagram of the axonometric structure of the combined state of the present application is shown;

[0019] Figure 2 This application shows Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 This application shows Figure 1 A schematic diagram of the structure in which a set of reinforcement layers are split;

[0021] Figure 4 This application shows Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0022] Figure 5 The isometric structure schematic diagram of the present application in a disassembled state is shown;

[0023] Figure 6 This application shows Figure 5 A schematic diagram of the partially enlarged structure at C in the middle;

[0024] Figure 7 A schematic diagram of the top view of the structure of the present application in a state where the reinforcement layer is removed is shown;

[0025] Figure 8 This application shows Figure 7 The schematic diagram of the local enlarged structure at D in the middle;

[0026] Reference numerals list

[0027] 1. Concrete solid main board; 101. Steel bar layer;

[0028] 2. Strengthening layer;

[0029] 3. Sound absorbing layer;

[0030] 4. Built-in board layer; 401. Sound absorption with opening;

[0031] 5. Sound-absorbing accessories. DETAILED DESCRIPTION

[0032] Example: Please refer to Figures 1 to 8 :

[0033] The present invention proposes an assembled sound insulation floor, comprising: a concrete solid main board 1, a steel bar layer 101 composed of stress-bearing steel bars and distribution steel bars is laid inside the concrete solid main board 1, an internal board layer 4 is arranged on the upper side and the lower side of the concrete solid main board 1, the internal board layer 4 adopts a wooden board structure, and the top surface of the internal board layer 4 is evenly distributed with a plurality of sound-absorbing matching openings 401 penetrating the bottom surface thereof, and the sound-absorbing matching openings 401 are in a hexagonal structure. Through the wooden material of the internal board layer 4 and the sound-absorbing matching openings 401 in a hexagonal structure, a wooden honeycomb board structure is formed, and because there are many tiny pores inside the wood, after the sound waves enter the wood, the pores will be The air in the wood vibrates, and the friction between the air and the wood cell wall consumes the sound energy. When the sound enters the structure, it will be reflected multiple times on the wall surface of the sound absorbing opening 401, and each reflection will have part of the sound energy absorbed or change the propagation direction. Such multiple reflections make the sound energy constantly lost inside the structure, thereby reducing the sound energy reflected out. Based on the above, each sound absorbing opening 401 with a hexagonal structure can be regarded as a small resonance cavity. When the frequency of the external sound is close to its natural frequency, resonance will occur, so that the sound energy is absorbed in the resonance process, thereby achieving the sound absorption effect.

[0034] A sound-absorbing matching piece 5 is placed in each complete sound-absorbing matching opening 401. The sound-absorbing matching piece 5 is made of glass fiber cotton and has a spherical structure. The diameter of the sound-absorbing matching piece 5 is smaller than the structural size of the sound-absorbing matching opening 401. Since the top and bottom opening ends of the sound-absorbing matching opening 401 are respectively covered and sealed by the reinforcing layer 2 and the sound-absorbing layer 3, the sound-absorbing matching piece 5 is placed in the sound-absorbing matching opening 401 in a sealed environment. Therefore, when the sound wave enters the sound-absorbing matching opening 401, it will be reflected and scattered many times on the wall surface of the sound-absorbing matching opening 401 and the surface of the sound-absorbing matching piece 5. Due to the existence of the sound-absorbing matching piece 5, the number and complexity of the pores in the overall structure are further increased, making the propagation path of the sound wave more complicated, and increasing the opportunity for the sound wave to interact with the material, so that more sound energy is consumed in the reflection and scattering process, which helps to improve the sound absorption effect.

[0035] In the embodiment of the present invention, the concrete solid main board 1 and the two built-in board layers 4 are bonded and fixedly connected by a group of sound-absorbing layers 3. The sound-absorbing layers 3 are made of mineral wool. The sound-absorbing layers 3 completely seal and cover the contact end surfaces of the concrete solid main board 1 and the built-in board layers 4. Through the setting of the material of the sound-absorbing layer 3 and its loose porous structure, when the sound is transmitted to the sound-absorbing layer 3, the sound waves will enter these tiny pores. Inside the pores, the air molecules will vibrate with the vibration of the sound waves. Due to the irregular shape and size of the pores, friction will occur between the air molecules and between the air molecules and the mineral wool fiber walls. This friction will convert sound energy into heat energy, thereby consuming the energy of the sound and achieving the effect of sound absorption. Moreover, the high porosity of the mineral wool fiber (generally the porosity can reach 70%-90%) provides a large number of channels for the sound waves to enter, and can effectively absorb sounds in a wider frequency range.

[0036] In the embodiment of the present invention, a group of reinforcing layers 2 are fixedly bonded to the top end surface of the built-in panel layer 4 located on the upper side and the bottom end surface of the built-in panel layer 4 located on the lower side. The reinforcing layer 2 is made of carbon fiber material. The reinforcing layer 2 completely seals and covers the contact end surface with the built-in panel layer 4. By adopting the reinforcing layer 2 made of carbon fiber material, when bearing vertical loads, it can effectively share part of the load and enhance the bearing capacity of the building floor slab. Moreover, when subjected to horizontal shear force, the reinforcing layer 2 made of carbon fiber material can provide additional shear strength in the horizontal direction and improve the shear resistance of the building floor slab.

[0037] The working principle of this embodiment:

[0038] The floor slab assembly process of the present invention is as follows:

[0039] A group of sound-absorbing layers 3 made of mineral wool are fitted on the top and bottom surfaces of the prefabricated concrete solid main board 1, and the contacting end surfaces of the two groups of sound-absorbing layers 3 and the concrete solid main board 1 are fixedly connected by adhesive, and the sound-absorbing layers 3 completely seal and cover the contacting end surfaces with the concrete solid main board 1; then, an internal board layer 4 made of a wooden board structure is fitted on the top surface of the sound-absorbing layer 3 located on the upper side and the bottom surface of the sound-absorbing layer 3 located on the lower side, and the contacting end surfaces of the two internal board layers 4 and the sound-absorbing layer 3 are fixedly connected by adhesive, and the sound-absorbing layers 3 completely seal and cover the contacting end surfaces with the internal board layers 4;

[0040] A group of reinforcing layers 2 made of carbon fiber material are fitted on the top surface of the built-in board layer 4 located on the upper side, and the contact end surfaces of the reinforcing layer 2 and the built-in board layer 4 are fixedly connected by adhesive, and the reinforcing layer 2 completely seals and covers the contact end surfaces with the built-in board layer 4; and before the reinforcing layer 2 is fitted and installed on the built-in board layer 4, a sound-absorbing matching piece 5 with a spherical structure and made of glass fiber wool is placed in each complete sound-absorbing matching opening 401 in the built-in board layer 4;

[0041] Afterwards, the concrete solid main board 1 is turned over 180 degrees, and then a set of reinforcing layers 2 are also installed on the top surface of the built-in board layer 4 currently located on the upper side by adhesive, and are completely sealed to cover the contact end surface with the built-in board layer 4; and before the reinforcing layer 2 is fitted and installed on the built-in board layer 4, a sound-absorbing fitting 5 is placed in each complete sound-absorbing fitting opening 401 in the built-in board layer 4.

Claims

1. An assembled sound insulation floor, comprising a concrete solid main board (1), wherein a steel bar layer (101) composed of stress-bearing steel bars and distribution steel bars is laid inside the concrete solid main board (1), characterized in that: An internal board layer (4) is provided on the upper side and the lower side of the concrete solid main board (1), the internal board layer (4) adopts a wooden board structure, the top surface of the internal board layer (4) is evenly distributed with a plurality of sound-absorbing matching openings (401) penetrating the bottom surface thereof, the sound-absorbing matching openings (401) are in a hexagonal structure; a sound-absorbing matching piece (5) is placed in each complete sound-absorbing matching opening (401), and the sound-absorbing matching piece (5) is made of glass fiber wool.

2. The assembled sound insulation floor according to claim 1, characterized in that: The sound-absorbing matching piece (5) adopts a spherical structure, and the diameter of the sound-absorbing matching piece (5) is smaller than the structural size of the sound-absorbing matching opening (401).

3. The assembled sound insulation floor according to claim 2, characterized in that: The concrete solid main board (1) and the two built-in board layers (4) are bonded and fixedly connected via a group of sound absorbing layers (3), and the sound absorbing layers (3) are made of mineral wool.

4. The assembled sound insulation floor according to claim 3, characterized in that: The sound absorbing layer (3) completely seals and covers the contact end surfaces of the concrete solid main board (1) and the built-in board layer (4).

5. The assembled sound insulation floor according to claim 4, characterized in that: A group of reinforcing layers (2) are fixedly bonded to the top end surface of the built-in plate layer (4) located on the upper side and the bottom end surface of the built-in plate layer (4) located on the lower side, and the reinforcing layers (2) are made of carbon fiber material.

6. The assembled sound insulation floor according to claim 5, characterized in that: The reinforcement layer (2) completely seals and covers the end surface in contact with the built-in board layer (4).

7. The assembly process of an assembled sound insulation floor according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1. A set of sound absorbing layers (3) are attached to the top and bottom end surfaces of the prefabricated concrete solid main board (1), and the two sets of sound absorbing layers (3) are fixedly connected to the contacting end surfaces of the concrete solid main board (1) by adhesive, and the sound absorbing layers (3) completely seal and cover the contacting end surfaces of the concrete solid main board (1); Step 2. On the basis of step 1, a built-in board layer (4) is attached to the top end surface of the sound absorbing layer (3) located on the upper side and the bottom end surface of the sound absorbing layer (3) located on the lower side, and the contact end surfaces of the two built-in board layers (4) and the sound absorbing layer (3) are fixedly connected by an adhesive, and the sound absorbing layer (3) completely seals and covers the contact end surface with the built-in board layer (4); Step 3. On the basis of step 2, a group of reinforcing layers (2) are fitted on the top surface of the built-in board layer (4) located on the upper side, and the contact end surfaces of the reinforcing layer (2) and the built-in board layer (4) are fixedly connected by an adhesive, and the reinforcing layer (2) completely seals and covers the contact end surface with the built-in board layer (4); Before the reinforcing layer (2) and the built-in board layer (4) are fitted together and installed, a sound-absorbing matching piece (5) is placed in each complete sound-absorbing matching opening (401) in the built-in board layer (4); Step 4. On the basis of step 3, the concrete solid main board (1) is turned over 180 degrees, and then a set of reinforcing layers (2) are also installed on the top surface of the built-in board layer (4) currently located on the upper side by adhesive bonding, and the reinforcing layers (2) are completely sealed to cover the contact end surface with the built-in board layer (4); Furthermore, before the reinforcing layer (2) is fitted and installed with the built-in board layer (4), a sound-absorbing matching piece (5) is placed in each complete sound-absorbing matching opening (401) in the built-in board layer (4); Step 6. Based on the above steps 1 to 5, the assembly of the floor slab is completed. When the floor slab is assembled and installed, the reserved steel bars of the floor slab can be welded or tied to the steel bars in the building walls or building beams.

Images