Anti-vibration pad floating floor slab

Abstract

The utility model discloses a floating floor slab with an anti-vibration pad. The floating floor slab comprises a structural layer floor slab, a bottom leveling layer, the anti-vibration pad, a spacing layer, a concrete slab, an upper leveling layer and a sports floor, the structural layer floor slab is a building pouring floor slab, the bottom layer leveling layer is laid on the top of the structural layer floor slab, the top face of the bottom layer leveling layer is in a horizontal state, the anti-vibration pad is horizontally laid on the top of the bottom layer leveling layer, the concrete slab is laid on the anti-vibration pad, and the sports floor is laid on the concrete slab after the upper layer leveling layer is adopted for leveling. The beneficial effects are that the damping effect is good, the pre-embedded structure is adopted, the probability of vibration of the body is reduced, and the damping and sound insulation performance is more obvious.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor construction, and particularly relates to a vibration-damping pad floating floor. Background Art

[0002] With the improvement of my country's economic level, the construction industry has developed rapidly. Modern engineering structures are increasingly inclined to large spans, lightness and flexibility. The structural vibration caused by people's activities has become more and more obvious. This vibration usually does not cause problems for the safety of the structure, but it will cause discomfort to people in the building, and even cause tension and panic, affecting their normal life, which is the so-called comfort problem. With the advancement of structural design methods and the use of new building materials, and in order to meet people's demand for quality of life, modern stadiums have gradually developed from traditional single-layer structures to double-layer or even multi-layer structures, and their functions have also developed from single to comprehensive. For example, modern stadiums are not only indoor stadiums, but also include conference rooms, libraries, commercial areas, restaurants, leisure areas and other functional areas. However, vibration and noise will be transmitted to other parts of the building through the structure, thereby affecting the normal use of other functional areas. Especially when performing high-intensity basketball, running in step or audience synchronized jumping and other collective synchronous sports, the structure may vibrate to a large extent, making people in the building feel uncomfortable and panic. In order to solve this problem, corresponding measures need to be taken to reduce the transmission of vibration and noise to improve the comfort and safety of the building.

[0003] The patent document with publication number CN209323896U discloses a suspended sports floor with a vibration-damping effect, including a floor body, two adjacent sides of the floor body are fixedly connected with a plurality of U-shaped clips, and a locking member is arranged between two adjacent U-shaped clips, and the other two adjacent sides of the floor body are provided with clip grooves corresponding to the U-shaped clips, and the U-shaped clips on the floor body are docked in place with the clip grooves on another floor body, a cavity is provided on the inner wall of the upper end of the floor body, and a plurality of support columns are evenly arranged in the cavity, and the rest of the cavity except the support columns is filled with an elastic mesh layer.

[0004] The above-mentioned comparative documents do provide a certain vibration reduction effect when used, but the suspended sports floor body is not in full contact with the ground. This will cause the suspended sports floor to vibrate when it is hit, and indirectly hit the cast floor slab, causing the cast floor slab to still transmit part of the vibration, resulting in limited vibration reduction effect. Utility Model Content

[0005] The utility model aims to provide a vibration-damping pad floating floor to solve the problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A vibration-damping pad floating floor comprises: a structural layer floor, a bottom leveling layer, a vibration-damping pad, a spacing layer, a concrete slab, an upper leveling layer, and a sports floor; the structural layer floor is a building cast floor, the bottom leveling layer is laid on the top of the structural layer floor, the top surface of the bottom leveling layer is in a horizontal state, the vibration-damping pad is horizontally laid on the top of the bottom leveling layer, a concrete slab is laid above the vibration-damping pad, and the sports floor is laid after the upper leveling layer is used to level the concrete slab.

[0008] Furthermore, in order to enable the vibration damping pad to withstand alternating stress, absorb vibration energy and have vibration damping and sound insulation performance, the vibration damping pad includes at least a layer of polyurethane foam material and a layer of rubber damping material; rubber is used as the damping layer, polyurethane rigid foam is used as the isolation layer, and epoxy resin adhesive is used as the adhesive of the two layers of materials to form a polyurethane-rubber isolation composite damping material for reducing structural vibration.

[0009] Furthermore, in order to prevent the vibration damping pad from being subjected to a single-point force during vibration damping and buffering, and to help disperse the impact force on the vibration damping pad, a spacer layer is provided between the vibration damping pad and the concrete slab, and the spacer layer is a corrugated thin steel plate with a thickness of 1-3 mm;

[0010] Furthermore, in order to prevent the vibration damping pad from water leakage, the corrugated thin steel plate of the spacer layer is covered with a high-toughness PE film or PVC waterproof membrane with a thickness of between 0.5mm-1.5mm.

[0011] Furthermore, the sports floor comprises: a floor surface layer, a subfloor layer, and a keel; the keel is nailed to the upper leveling layer, a subfloor layer with a wooden board structure is laid on the keel, and the corresponding floor surface layer is laid on the subfloor layer. The floor surface layer can be one or more of a basketball floor, a badminton floor, and a table tennis floor.

[0012] Furthermore, in order to prevent the subfloor layer and the keel from being damp and deformed, a moisture-proof layer is laid between the subfloor layers of the floor surface layer, and the moisture-proof layer is specifically one or more of SBS, non-woven fabric or APP polymer waterproof materials.

[0013] Furthermore, in order to reduce mutual resonance and vibration transmission between the keels, the gaps between the keels are filled with vibration-damping pads, which are natural rubber pads with a thickness of 10 mm; and the gaps between the vibration-damping pads and the keels are filled with ultra-fine glass wool.

[0014] Furthermore, in order to ensure the overall practical effect of this application, the concrete slab is a cast-in-place C20 fine stone concrete slab with reinforcement and a thickness of not less than 40 mm; the thickness of the bottom leveling layer and the upper leveling layer shall not be less than 20 mm.

[0015] In summary, the utility model has the following beneficial effects:

[0016] ①Good shock absorption effect: Because the vibration damping pad is made of polyurethane-rubber isolation composite damping material, hard polyurethane foam is a porous material with low density, easy molding, good economy, and excellent vibration reduction and sound insulation performance, and the rubber material has an appropriate amount of damping, which can absorb vibration energy, and is particularly effective in absorbing high-frequency vibration energy, which is usually quite obvious above 30Hz. Rubber has great linear flexibility, can be stretched and broken without losing its elasticity, and can withstand alternating stress. Therefore, under the combination of the two, the vibration damping pad can withstand alternating stress, absorb vibration energy, and have vibration reduction and sound insulation performance.

[0017] ② The embedded structure reduces the probability of vibration of the main body: because the vibration-damping pad is embedded and fixed with an interval layer and a concrete slab, the probability of vibration during shock absorption and sound insulation is low, making its shock absorption and sound insulation performance more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the sports floor in the utility model;

[0020] In the figure, 1, structural layer slab; 2, bottom leveling layer; 3, vibration-damping pads; 4, spacing layer; 5, concrete slab; 6, upper leveling layer; 7, sports floor; 701, floor surface layer; 702, moisture-proof layer; 703, subfloor layer; 704, keel; 705, vibration-damping pads. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] See also Figure 1-Figure 2 , the utility model provides a technical solution:

[0024] A vibration-damping pad floating floor comprises: a structural layer floor 1, a bottom leveling layer 2, a vibration-damping pad 3, a spacing layer 4, a concrete slab 5, an upper leveling layer 6, and a sports floor 7; the structural layer floor 1 is a building cast floor, the bottom leveling layer 2 is laid on the top of the structural layer floor 1, the top surface of the bottom leveling layer 2 is in a horizontal state, the vibration-damping pad 3 is horizontally laid on the top of the bottom leveling layer 2, a concrete slab 5 is laid above the vibration-damping pad 3, and the sports floor 7 is laid after the concrete slab 5 is leveled with the upper leveling layer 6.

[0025] In order to enable the vibration damping pad 3 to withstand alternating stress, absorb vibration energy and have vibration damping and sound insulation performance, the vibration damping pad 3 includes at least one layer of polyurethane foam material and one layer of rubber damping material; rubber is used as the damping layer, polyurethane rigid foam is used as the isolation layer, and epoxy resin adhesive is used as the adhesive of the two layers of materials to form a polyurethane-rubber isolation composite damping material for reducing structural vibration.

[0026] In order to prevent the vibration damping pad 3 from being subjected to a single-point force during vibration damping and buffering, and to help disperse the impact force on the vibration damping pad 3, a spacer layer 4 is provided between the vibration damping pad 3 and the concrete slab 5. The spacer layer 4 is a corrugated thin steel plate with a thickness of 1-3 mm.

[0027] In order to prevent the vibration damping pad 3 from water leakage, the corrugated thin steel plate of the spacer layer 4 is covered with a high-toughness PE film or PVC waterproof coiled material with a thickness of 0.5mm-1.5mm.

[0028] The sports floor 7 includes: a floor surface layer 701, a subfloor layer 703, and a keel 704; the keel 704 is nailed to the upper leveling layer 6, a subfloor layer 703 with a wooden board structure is laid on the keel 704, and the corresponding floor surface layer 701 is laid on the subfloor layer 703. The floor surface layer 701 can be one or more of a basketball floor, a badminton floor, and a table tennis floor.

[0029] In order to prevent the subfloor layer 703 and the keel 704 from being damp and deformed, a moisture-proof layer 702 is laid between the floor surface layer 701 and the subfloor layer 703. The moisture-proof layer 702 is specifically one or more of SBS, non-woven fabric or APP polymer waterproof materials.

[0030] In order to reduce mutual resonance and vibration transmission between the keels 704, the gaps of the keels 704 are filled with vibration-damping pads 705, which are natural rubber pads with a thickness of 10 mm; the gaps between the vibration-damping pads 705 and the keels 704 are filled with ultra-fine glass wool.

[0031] In order to ensure the overall practical effect of this application, the concrete slab 5 is a cast-in-place C20 fine stone concrete slab with reinforcement and a thickness of not less than 40 mm; the thickness of the bottom leveling layer 2 and the upper leveling layer 6 shall not be less than 20 mm.

[0032] When using it, it is divided into the following steps:

[0033] Step S1, laying the bottom leveling layer 2: using a wire brush and a chisel to clean and remove the ash layer on the structural layer floor 1, brushing off the oil stains on the structural layer floor 1 with a 10% caustic soda aqueous solution, and flushing the reducing liquid with clean water in time; using a cement mortar leveling layer or a self-leveling mortar to level and form the bottom leveling layer 2, in order to avoid cracks in the bottom leveling layer 2, the bottom leveling layer 2 is dried in the shade, and watered during drying to keep it moist, and the curing time is not less than 7d, and its compressive strength is tested. When the compressive strength reaches 5MPa, the next step can be carried out.

[0034] Step S2, making and laying vibration damping pads 3: using rubber as the damping layer, polyurethane rigid foam as the isolation layer, and epoxy resin adhesive as the adhesive of the two layers of materials, and bonding the adjacent surfaces of the damping layer and the isolation layer coated with the adhesive together, lightly compacting to drive out the bubbles in the middle, and curing at room temperature of 23°C for 24 hours to form a polyurethane-rubber isolation composite damping material; and then evenly laying the bonded vibration damping pads 3 on the leveled bottom leveling layer 2.

[0035] Step S3, laying the spacer layer 4 and covering with film: laying the spacer layer 4 of the corrugated thin steel plate structure on the laid vibration damping pad 3, after laying the spacer layer 4, covering the upper surface of the spacer layer 4 with a high-toughness PE film or PVC waterproof membrane, bending the edge of the high-toughness PE film or PVC waterproof membrane by 90 degrees, and then attaching it to the wall 2-5 cm.

[0036] Step S4, pouring concrete slab 5: pouring concrete slab 5 on the spacer layer 4 to compact the spacer layer 4. During pouring, because the upper edge of the spacer layer 4 and the wall are wrapped with PE film or PVC waterproof membrane, the concrete will not leak to the vibration damping pad 3. The concrete slab 5 adopts C20 fine stone concrete cast-in-place slab with reinforcement and a pouring thickness of not less than 40mm.

[0037] Step S5, leveling the top of the concrete slab 5: Use a wire brush and a chisel to clean the upper surface of the concrete slab 5, remove the ash layer on the concrete slab 5, use a 10% caustic soda aqueous solution to brush off the oil stains on the concrete slab 5, and rinse the reducing liquid with clean water in time; use a cement mortar leveling layer or a self-leveling mortar to level and form an upper leveling layer 6. In order to avoid cracks in the upper leveling layer 6, the upper leveling layer 6 is dried in the shade, and water is sprinkled during the drying process to keep it moist. The curing time is not less than 7 days, and its compressive strength is tested. When the compressive strength reaches 5MPa, the next step can be carried out.

[0038] Step S6, laying the sports floor 7: first nail the keel 704 on the leveled upper leveling layer 6, then fill the gaps of the keels 704 with vibration-damping pads 705 of a natural rubber pad structure, and fill the gaps between the vibration-damping pads 705 and the keels 704 with ultra-fine glass wool. After filling, lay a layer of subfloor layer 703 of a wooden board structure on the keels 704, and then lay a thin layer of moisture-proof layer 702 made of waterproof material on the subfloor layer 703, and then lay the corresponding floor surface layer 701 on the moisture-proof layer 702.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A vibration-damping pad floating floor, comprising: A structural layer slab (1), a bottom leveling layer (2), a vibration-damping pad (3), a spacing layer (4), a concrete slab (5), an upper leveling layer (6), and a sports floor (7); characterized in that: the structural layer slab (1) is a building cast slab, the bottom leveling layer (2) is laid on the top of the structural layer slab (1), the top surface of the bottom leveling layer (2) is in a horizontal state, the vibration-damping pad (3) is laid horizontally on the top of the bottom leveling layer (2), a concrete slab (5) is laid on top of the vibration-damping pad (3), and the sports floor (7) is laid on top of the concrete slab (5) after being leveled with an upper leveling layer (6); the vibration-damping pad (3) comprises at least one layer of polyurethane foam material and one layer of rubber damping material; rubber is used as the damping layer, polyurethane rigid foam is used as the isolation layer, and epoxy resin adhesive is used as the adhesive of the two layers of materials, which are bonded to form a polyurethane-rubber isolation composite damping material for reducing structural vibration.

2. A vibration-damping pad floating floor according to claim 1, characterized in that: A spacing layer (4) is provided between the vibration-damping pad (3) and the concrete slab (5); the spacing layer (4) is a corrugated thin steel plate with a thickness of 1-3 mm.

3. A vibration-damping pad floating floor according to claim 2, characterized in that: The corrugated thin steel plate of the spacing layer (4) is covered with a high-toughness PE film or a PVC waterproof coiled material with a thickness of 0.5 mm to 1.5 mm.

4. The vibration-damping pad floating floor according to claim 1, characterized in that: The sports floor (7) comprises: a floor surface layer (701), a subfloor layer (703), and a keel (704); the keel (704) is nailed to the upper leveling layer (6), a subfloor layer (703) with a wooden board structure is laid on the keel (704), and the corresponding floor surface layer (701) is laid on the subfloor layer (703), and the floor surface layer (701) can be one or more of a basketball floor, a badminton floor, and a table tennis floor.

5. The vibration-damping pad floating floor according to claim 4, characterized in that: A moisture-proof layer (702) is laid between the floor surface layer (701) and the subfloor layer (703).

6. A vibration-damping pad floating floor according to claim 5, characterized in that: The gaps of the keel (704) are filled with vibration-damping pads (705), which are natural rubber pads with a thickness of 10 mm; and the gaps between the vibration-damping pads (705) and the keel (704) are filled with ultra-fine glass wool.

7. The vibration-damping pad floating floor according to claim 1, characterized in that: The concrete slab (5) is a cast-in-place C20 fine stone concrete slab with reinforcement and a thickness of not less than 40 mm; the thickness of the bottom leveling layer (2) and the upper leveling layer (6) shall not be less than 20 mm.

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