Sound and shock insulation machine room ground structure

Abstract

The utility model relates to the field of buildings. A sound insulation and shock insulation machine room ground structure comprises a structural floor slab, polyurethane plates are fully laid on the structural floor slab, the thickness of each polyurethane plate ranges from 40 mm to 60 mm, and gaps ranging from 50 mm to 100 mm are reserved between the polyurethane plates; a foam concrete layer is poured on the structural floor slab, the thickness of the foam concrete layer ranges from 100 mm to 150 mm, and the polyurethane plate is embedded in the foam concrete layer. The vibration isolation and sound insulation structure has good vibration isolation and sound insulation effects, and is low in construction difficulty and high in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building, concretely relates to ground structure. BACKGROUND

[0002] Machine room vibration isolation foundation is very important in building, especially residential building. It can effectively reduce the vibration and noise generated by the machine room equipment to the working and living environment.

[0003] There are many ways to isolate the vibration of the existing machine room, mainly including the following:

[0004] 1. Floating base: by adding an elastic layer between the equipment base and the building floor, the energy transmitted to the structure of the building is reduced, thereby reducing vibration and noise.

[0005] 2. Vibration isolation pad: place a vibration isolation pad between the equipment base and the building floor, usually made of rubber or foam material, which can effectively absorb vibration energy.

[0006] 3. Sound insulation material: use sound-absorbing materials on the inner walls, ceiling and floor of the machine room to reduce sound reflection and transmission.

[0007] The current machine room vibration isolation and sound insulation method has the following shortcomings:

[0008] 1. Floating base:

[0009] Complex installation: it needs to be installed by professional installers, which increases additional steps and costs in design and construction.

[0010] Maintenance difficulties: if the equipment needs to be maintained or replaced, the floating base may need to be removed or adjusted.

[0011] 2. Vibration isolation pad:

[0012] Limited life: rubber or foam material may age over time, resulting in reduced vibration isolation effect.

[0013] Limited carrying capacity: for heavier equipment, the effect of the vibration isolation pad may not be significant.

[0014] 3. Sound insulation material:

[0015] High cost: high-quality sound insulation materials are expensive, increasing the total cost of the project. INVENTION CONTENT

[0016] The purpose of the utility model is to provide a sound insulation and shock isolation machine room ground structure to solve at least one of the above technical problems.

[0017] The technical problem solved by the utility model can be solved by using the following technical solutions:

[0018] The sound insulation and shock isolation machine room ground structure comprises a structural floor, the structural floor is fully paved with polyurethane plates, the thickness of the polyurethane plates is 40-60 mm, and gaps of 50-100 mm are left between the polyurethane plates.

[0019] A foamed concrete layer is cast on the structural floor, the thickness of the foamed concrete layer is 100-150 mm, and the polyurethane plates are embedded in the foamed concrete layer.

[0020] Preferably, the width of the polyurethane plates is within 1 m, and the polyurethane plates are bonded to the structural floor by using a bonding agent.

[0021] Preferably, a cement mortar surface layer is cast on the foamed concrete layer, the thickness of the cement mortar surface layer is 50 mm, vibration isolation joints are formed on the cement mortar surface layer, the cement mortar surface layer is divided into a square grid of 1.5 mx1.5 m-2 mx2 m by the vibration isolation joints, and the vibration isolation joints are filled with waterproof glue.

[0022] Preferably, the width of the vibration isolation joints is about 10 mm.

[0023] Preferably, a floor paint layer is applied on the cement mortar surface layer.

[0024] Preferably, a second gap is provided between the foamed concrete layer and the cement mortar surface layer and the wall, the second gap is used as a water collecting ditch, and a waterproof roll material is laid in the water collecting ditch; one end of the waterproof roll material is clamped between the cement mortar surface layer and the foamed concrete layer, and the other end of the waterproof roll material is bonded to the wall and fixed by using stainless steel nails.

[0025] Preferably, a first gap of 300-500 mm is left between the polyurethane plates and the wall, and a second gap of 150 mm is left between the foamed concrete layer and the cement mortar surface layer and the wall.

[0026] Preferably, a steel wire mesh is further provided in the foamed concrete layer, and the steel wire mesh is laid on at least the top surface of the polyurethane plates.

[0027] Preferably, the diameter of the steel wire used in the steel wire mesh is 2-3 mm, and the grid of the steel wire mesh is 80-100 mm.

[0028] Preferably, the strength grade of the cement mortar used in the cement mortar surface layer is not less than M15, and the density grade of the foamed concrete used in the foamed concrete layer is C0.5-C1.0.

[0029] Beneficial effects: 1. The utility model is suitable for full paving in equipment room, can play the role of vibration isolation and sound insulation simultaneously, light vibration equipment (such as small and medium-sized fan, pump, small and medium-sized air conditioning unit) can be placed flexibly in the equipment room, and additional vibration isolation support does not need to be set; for heavy vibration equipment, professional vibration isolation support can be additionally arranged at the bottom of the equipment, and the ground of the equipment room plus additional shock isolation support can play a better vibration isolation and sound insulation effect.

[0030] 2. Compared with the prior art, the utility model is completed during the construction of civil engineering, does not need to additionally purchase professional equipment, and is simple to operate and low in construction difficulty.

[0031] 3. Compared with the prior art, the utility model is strong in universality, is not limited by the size and placement position of equipment, and additionally arranges additional vibration isolation support on the ground of the equipment room to strengthen the vibration isolation effect.

[0032] 4. Compared with the prior art, the foam concrete and polyurethane board are common building materials in engineering, are easy to order and low in price, and basically do not increase cost. DRAWINGS

[0033] Figure 1 It is a structural schematic view of the utility model. CONCRETE EMBODIMENT

[0034] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0035] Referring to Figure 1 , a sound insulation and shock isolation equipment room ground structure, comprising a structural floor slab 9, the structural floor slab 9 is full of polyurethane boards 8, the thickness of the polyurethane boards 8 is 40mm-60mm, and a gap of 50mm-100mm is left between the polyurethane boards 8; the structural floor slab 9 is poured with a foam concrete layer 7, the thickness of the foam concrete layer 7 is 100mm-150mm, and the polyurethane boards 8 are embedded in the foam concrete layer 7. The foam concrete has the characteristics of relatively high hardness and relatively low elastic modulus; the polyurethane board 8 has the characteristics of low hardness and low elastic modulus. The utility model combines the two materials, retains the low elastic modulus of the material, is beneficial to absorbing high-frequency vibration of equipment operation, fixes the polyurethane board 8 left and right, and guarantees the integrity of the ground material. In addition, the foam concrete plays the roles of vibration isolation and sound insulation, and reduces the influence of equipment room noise on the lower house.

[0036] Preferably, the polyurethane board 8 has a width of less than 1 meter. The polyurethane board 8 is bonded to the structural floor 9 by means of an adhesive. The foam concrete layer 7 uses foam concrete of density grade C0.5-C1.0. Optionally, the polyurethane board 8 is provided with upwardly open blind holes. In this way, the foam concrete can extend into the blind holes, thereby improving the connection with the polyurethane board.

[0037] The foam concrete layer 7 is also provided with a steel wire mesh 5, which is preferably laid on the top surface and periphery of the polyurethane board 8. The steel wire mesh 5 uses steel wire of diameter 2-3 mm. The mesh of the steel wire mesh is 80-100 mm.

[0038] The foam concrete layer 7 can be provided with a cement mortar surface layer 6 above it, which has a thickness of 50 mm. The cement mortar surface layer 6 uses cement mortar of strength grade not less than M15. The cement mortar surface layer 6 is provided with vibration isolation joints 10, which divide the surface layer into square meshes of 1.5mx1.5m-2mx2m, and the vibration isolation joints 10 are filled with waterproof glue. Preferably, the vibration isolation joints 10 are about 10 mm wide. The equipment (vibration source) of the machine room is placed on the cement mortar surface layer 6, and since the surface layer is divided into square blocks by the vibration isolation joints, the foundation of the equipment (vibration source) will fall on different square blocks. The cement mortar surface layer 6 of the utility model has high strength, and protects the foam concrete and polyurethane board 8 below under the action of the load of the equipment and personnel of the machine room. At the same time, the vibration isolation joints are left between the cement mortar surface layers 6, which artificially divide the surface layers into multiple rigid bodies, which is beneficial to the absorption of the vibration of the equipment of the machine room by the soft material below.

[0039] The cement mortar surface layer 6 can be coated with a floor paint layer 4 above it. The floor paint layer 4 plays a role of anti-skid and shock absorption.

[0040] Preferably, the polyurethane board 8 is left with a gap of 300-500 mm from the wall 1. The foam concrete is left with a gap of 150 mm from the wall 1. The gaps between the foam concrete and the cement mortar surface layer 6 and the wall 1 form a water collecting trench 2, which is provided with a waterproof roll 3. One end of the waterproof roll 3 is bonded and fixed to the foam concrete before the pouring of the cement mortar surface layer, and the other end of the waterproof roll 3 is bonded to the wall 1 and fixed by means of stainless steel nails. The water collecting trench 2 can collect the drainage in the machine room, and also insulate the vibration from being transmitted to other spaces of the building through the wall 1.

[0041] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sound and vibration isolation machine room floor structure comprising a structural floor, characterized by, The structure floor is fully paved with polyurethane plates, the thickness of the polyurethane plates is 40-60 mm, and gaps of 50-100 mm are left between the polyurethane plates; The structure floor is cast with a foam concrete layer, the thickness of the foam concrete layer is 100-150 mm, and the polyurethane plates are embedded in the foam concrete layer.

2. The soundproofing and vibration isolation machine room floor structure according to claim 1, characterized in that, The width of the polyurethane plates is within 1 m, and the polyurethane plates are bonded to the structure floor by using a bonding agent.

3. The soundproofing and vibration isolation machine room floor structure according to claim 1, characterized in that, A cement mortar surface layer is cast on the foam concrete layer, the thickness of the cement mortar surface layer is 50 mm, vibration isolation joints are formed on the cement mortar surface layer, the cement mortar surface layer is divided into square grids of 1.5 mx1.5 m-2 mx2 m by the vibration isolation joints, and the vibration isolation joints are filled with waterproof glue.

4. The soundproofing and vibration isolation machine room floor structure according to claim 3, characterized in that, The width of the vibration isolation joints is about 10 mm.

5. The soundproofing and vibration isolation machine room floor structure according to claim 3, characterized in that, A floor paint layer is applied on the cement mortar surface layer.

6. The soundproofing and vibration isolation machine room floor structure according to claim 3, characterized in that, A second gap is provided between the foam concrete layer, the cement mortar surface layer and the wall, the second gap is used as a water collecting ditch, and a waterproof roll material is laid in the water collecting ditch; one end of the waterproof roll material is clamped between the cement mortar surface layer and the foam concrete layer, and the other end of the waterproof roll material is bonded to the wall and fixed by using stainless steel nails.

7. The soundproofing and vibration isolation machine room floor structure according to claim 6, characterized in that, The polyurethane plates are provided with a first gap of 300-500 mm from the wall, and the foam concrete layer and the cement mortar surface layer are provided with a second gap of 150 mm from the wall.

8. The soundproofing and vibration isolation machine room floor structure according to any one of claims 1-7, characterized in that, Steel wire meshes are further provided in the foam concrete layer, and the steel wire meshes are laid on the top surface of the polyurethane plates.

9. The soundproofing and vibration isolation machine room floor structure according to claim 8, characterized in that, The diameter of the steel wire used in the steel wire meshes is 2-3 mm, and the grid of the steel wire meshes is 80-100 mm.

10. The soundproofing and vibration isolation machine room floor structure according to claim 7, characterized in that, The strength grade of the cement mortar used in the cement mortar surface layer is not less than M15, and the density grade of the foam concrete used in the foam concrete layer is C0.5-C1.0.

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