CN212671263U - Full frequency sound insulation floor system - Google Patents
Full frequency sound insulation floor system Download PDFInfo
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- CN212671263U CN212671263U CN202021313628.4U CN202021313628U CN212671263U CN 212671263 U CN212671263 U CN 212671263U CN 202021313628 U CN202021313628 U CN 202021313628U CN 212671263 U CN212671263 U CN 212671263U
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Abstract
The utility model relates to the technical field of building construction, in particular to a full-frequency sound-insulation floor slab system which is used for sound insulation reconstruction of floors of non-bottom floors of buildings which are put into use, and comprises a new floor slab erected on an original floor slab through steel beams and pillars, wherein a resonance sound absorption layer is arranged below the new floor slab; the pillar lower end pad is equipped with the column base, and the column base is including the cast-in-place pedestal that is located the pillar lower extreme and around the wall that leads that cast-in-place pedestal a week set up, and the stopper has the vibration isolation cushion between leading wall and the cast-in-place pedestal, and the cushion is equipped with the vibration isolation rubber block below the cast-in-place pedestal. In the utility model, most of the noise is isolated above the new floor panel through the overhead structure; and a resonance sound absorption layer is provided under the new floor panel to eliminate low frequency noise propagated from the air downward from the new floor panel. Whole system need not to pour the concrete of big thickness like floating floor when reaching the isolated effect to full frequency channel noise, allows to give sound insulation to the building that has already come into use and reforms transform.
Description
Technical Field
The utility model relates to a construction technical field especially relates to a full frequency noise proof floor surface layer system.
Background
High-intensity external sound and dense footstep sound exist in audio and video entertainment places such as cinemas, and the high-intensity noise source is the high-intensity sound source when the high-intensity external sound and the dense footstep sound are leaked outside, so that sound insulation treatment must be carried out on the places to avoid the noise leakage from disturbing people.
Because no load bearing is needed, the sound insulation treatment of the ceiling and the wall surface is easy, and the light steel keel is usually adopted to hang the sound insulation plate for sound insulation. There are several options for sound insulation treatment of floors: for the bottom floor, the floor does not need any sound insulation treatment; for non-bottom floors, the floor can be made into a floating floor for sound insulation, or a sound insulation plate can be hung on the ceiling of the next floor by using a light steel keel for sound insulation, or both the two floors are combined.
However, it is difficult to reform the floor of the non-bottom floor of the building which has been put into use, and since the next floor is in use, sound insulation cannot be performed by reforming the ceiling of the next floor. If the floating floor slab is adopted, the bearing capacity of the original floor slab can be exceeded by filling the elastic sound insulation layer on the original floor slab and then pouring a layer of thick concrete.
In addition, the existing common sound insulation design, whether a perforated sound absorption plate or a floating floor plate, cannot effectively eliminate low-frequency noise.
SUMMERY OF THE UTILITY MODEL
The utility model provides a full frequency sound insulation floor layer system.
The technical problem to be solved is that: the floor of the non-bottom floor of the building which has been put into use is difficult to be transformed for sound insulation, and the floor cannot be transformed into a floating floor by transforming the ceiling of the next floor.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a full-frequency sound-insulation floor slab system is used for sound insulation reconstruction of floors of non-bottom floors of buildings which are put into use, and comprises a new floor slab erected on an original floor slab through steel beams and pillars, wherein a resonance sound absorption layer is arranged below the new floor slab, completely separates the original floor slab from the new floor slab and is enclosed by the resonance sound absorption layer and the new floor slab to form a closed cavity;
the lower end pad of the strut is provided with a column foot, the column foot comprises a cast-in-place pedestal positioned at the lower end of the strut and a guide wall arranged around the periphery of the cast-in-place pedestal, a vibration isolation rubber pad is plugged between the guide wall and the cast-in-place pedestal, and a vibration isolation rubber block is arranged below the cast-in-place pedestal;
the resonance sound absorption layer is formed by splicing thin resonance sound absorption plates with wavy surfaces.
Furthermore, profiled steel plates are paved on the steel beams, the new floor slab is a cast-in-place concrete slab arranged on the profiled steel plates, and damping paint is coated on the lower surfaces of the profiled steel plates.
Furthermore, gaps for preventing the acoustic bridge are reserved between the edge of the new floor panel, the edge of the profiled steel sheet and the edge of the resonance sound absorption layer and the wall of the house.
Furthermore, the sheet resonance acoustic board is a metal plate with a smooth upper surface, the lower surface of the sheet resonance acoustic board is coated with damping paint, and the wave base surface of the sheet resonance acoustic board is arranged in parallel to the steel beam.
Further, be provided with the steel sheet at the bottom of holding in the palm between cast-in-place pedestal and the vibration isolation cushion, the border of holding in the palm the bottom steel sheet pastes to lean on the inboard vibration isolation cushion setting of guide wall to enclose the storehouse of pouring that is used for pouring the cast-in-place pedestal with the inboard vibration isolation cushion of guide wall, the bulkhead and the bottom of pouring the storehouse are laid and are used for preventing the waterproof membrane of concrete seepage.
Further, asbestos cloth has still been laid to profiled sheet lower surface, asbestos cloth pastes the damping coating setting that leans on profiled sheet, and profiled sheet fixed connection, and gapped between with the resonance sound absorbing layer.
Further, the resonance sound absorption layer comprises the sheet metal resonance sound absorption board that sets up between adjacent girder steel and between girder steel and the wall, sheet metal resonance sound absorption board border and girder steel welded connection.
Furthermore, vibration isolation rubber mats are respectively plugged in the edge of the new floor panel, the edge of the resonance sound absorption layer and the gap between the edge of the profiled steel sheet and the wall of the house.
Furthermore, the wavy edge of the thin plate resonance sound absorption plate is in a sawtooth shape, and the vertex angle of the sawtooth is not less than 60 degrees.
Further, the new floor panel includes a horizontal portion and a stepped portion, and the sheet resonance sound absorbing panel located at the stepped portion is disposed against the ridge of the lower surface of the stepped portion.
The utility model relates to a full frequency noise proof floor surface layer system compares with prior art, has following beneficial effect:
in the utility model, the new floor panel is overhead through the steel beam and the pillar, and the vibration isolation rubber block for isolating the downward conduction of noise is arranged under the pillar, so that most of the noise is isolated above the new floor panel; and set up the resonance sound absorption layer under the new floor panel to eliminate the low frequency noise of air transmission from the new floor panel to the below, the resonance sound absorption layer is the smooth wave metal sheet of upper surface, can reflect more than 90% of the noise of air transmission back, and the noise that is not reflected causes the resonance sound absorption layer to resonate, dissipates with the form of heat energy. Whole system need not to pour the concrete of big thickness like floating floor when reaching the isolated effect to full frequency channel noise, allows to give sound insulation to the building that has already come into use and reforms transform.
Drawings
Fig. 1 is a schematic structural view of a full frequency acoustical floor system of the present invention;
FIG. 2 is a top view of the column shoe
FIG. 3 is a cross-sectional view of the AA section of FIG. 2;
FIG. 4 is a partial enlarged view of portion A of FIG. 1;
the concrete comprises 1-original floor slab, 2-pillar, 3-new floor slab, 31-profiled steel sheet, 311-asbestos cloth, 4-resonance sound absorption layer, 41-damping paint, 5-steel beam, 6-column base, 61-cast-in-place pedestal, 62-guide wall, 63-vibration isolation rubber mat, 64-vibration isolation rubber block, 65-sealant and 66-bottom supporting steel sheet.
Detailed Description
As shown in fig. 1, a full-frequency sound insulation floor system is used for sound insulation reconstruction of a floor of a non-bottom floor of a building which is put into use, and comprises a new floor panel 3 erected on an original floor 1 through a steel beam 5 and a pillar 2, wherein a resonance sound absorption layer 4 is arranged below the new floor panel 3, the resonance sound absorption layer 4 completely separates the original floor 1 from the new floor panel 3, and a closed cavity is enclosed by the resonance sound absorption layer 4 and the new floor panel 3; note that the cavity is different from the resonant cavity of the musical instrument, the resonant cavity of the musical instrument converts more mechanical vibration into sound to be emitted, and the resonant sound absorption layer 4 and the cavity convert the existing sound into mechanical vibration and dissipate the mechanical vibration;
gaps for preventing the acoustic bridge are reserved between the edge of the new floor panel 3 and the edge of the resonance sound absorption layer 4 and the wall of the house;
the lower end pad of the pillar 2 is provided with a pillar base 6, as shown in fig. 2-3, the pillar base 6 comprises a cast-in-place pedestal 61 positioned at the lower end of the pillar 2 and a guide wall 62 arranged around the cast-in-place pedestal 61 in a circle, a vibration isolation rubber pad 63 is plugged between the guide wall 62 and the cast-in-place pedestal 61, and a vibration isolation rubber block 64 is arranged below the cast-in-place pedestal 61; the sound wave is a longitudinal wave and directional, and is transmitted on the pillar 2 in the vertical direction, the vibration isolation rubber block 64 is a main sound insulation device, and the vibration isolation rubber pad 63 plugged between the guide wall 62 and the cast-in-place pedestal 61 mainly functions to prevent the cast-in-place pedestal 61 from shaking.
The resonance sound absorption layer 4 is formed by splicing a thin plate resonance sound absorption plate with a wavy surface, and the wave base surface of the thin plate resonance sound absorption plate is parallel to the steel beam 5. The sheet resonance sound absorption board dissipates noise in a sheet resonance mode, and can effectively eliminate low-frequency noise. The wave-shaped thin plate resonance sound absorption plate has the effects that the incident angle of sound waves is increased, the reflectivity of the sound waves is improved, the air thickness in the cavity is changed, the air thickness influences the resonance frequency of the cavity and the thin plate resonance sound absorption plate, the resonance frequency of different positions is different, the sound waves with various frequencies can be effectively resonated, and therefore noise is effectively dissipated. The wavy edge of the thin plate resonance sound absorption plate is in a sawtooth shape, and the vertex angle of the sawtooth is not less than 60 degrees, so that the incident angle of sound waves can be fully increased.
As shown in fig. 4, a profiled steel sheet 31 is laid on the steel beam 5, and the new floor slab 3 is a cast-in-place concrete slab provided on the profiled steel sheet 31, but a prefabricated slab may be used. A gap for preventing the acoustic bridge is reserved between the edge of the profiled steel sheet 31 and the wall of the house.
The sheet resonance acoustic panel is a metal plate having a smooth upper surface to effectively reflect sound waves, and damping paint 41 is coated on the lower surfaces of the sheet resonance acoustic panel and the profiled steel sheet 31 to prevent the sound waves from re-entering the air.
The resonance sound absorption layer 4 comprises the sheet metal resonance acoustic baffle that sets up between adjacent girder steel 5 and between girder steel 5 and the wall, sheet metal resonance acoustic baffle border and girder steel 5 welded connection.
A bottom supporting steel plate 66 is arranged between the cast-in-place pedestal 61 and the vibration isolation rubber block 64, the edge of the bottom supporting steel plate 66 is arranged by being attached to the vibration isolation rubber pad 63 on the inner side of the guide wall 62, and forms a pouring bin for pouring the cast-in-place pedestal 61 together with the vibration isolation rubber pad 63 on the inner side of the guide wall 62, and a waterproof film for preventing concrete leakage is laid on the bin wall and the bottom of the pouring bin.
Asbestos cloth 311 is further paved on the lower surface of the profiled steel plate 31, the asbestos cloth 311 is arranged by abutting against the damping coating 41 of the profiled steel plate 31, is fixedly connected with the profiled steel plate 31, and has a gap with the resonance sound absorption layer 4. The asbestos cloth 311 serves to suppress the re-reflection of the sound waves reflected to the lower surface of the steel plate 31, and of course, may be a perforated gypsum board, but is easily damaged.
The opening of the gap between the vibration isolation rubber pad 63 and the guide wall 62 is sealed with a sealant 65 to prevent moisture and impurities from entering.
And vibration isolation rubber pads 63 are plugged in the edges of the new floor panel 3, the resonant sound absorption layer 4 and the gap between the edge of the profiled steel sheet 31 and the wall of the house respectively. The gap can separate the acoustic bridge, and the vibration isolation rubber pad 63 is plugged to mainly prevent falling objects.
The new deck plate 3 includes a horizontal portion and a stepped portion, and the sheet resonance sound absorbing panel located in the stepped portion is disposed against the ridge of the lower surface of the stepped portion. Because there is a cavity below each step in the step portion, if the resonance sound absorption layer 4 is further disposed away from the step portion, the thickness of the cavity is excessively large, and the resonance effect becomes poor.
The support column 2 is a steel column and is connected with the cast-in-place pedestal 61 through an anchor bolt.
The utility model relates to a full frequency sound insulation floor layer system, its work progress includes following step:
step one, processing an original floor 1: the original floor slab 1 must be cleaned and leveled, all cracks should be repaired and any residues should be cleaned, and the ground should not have uneven ground, undulation and wrong lap. After the floor is cleaned, if the floor needs to be leveled, a cement mortar layer with the thickness of 15mm needs to be paved, and the error of each extension meter of the floor surface is not more than 5 mm.
Step two, constructing a column base 6: paying off the original floor 1, pouring a guide wall 62, sticking a vibration isolation rubber pad 63 on the inner side of the guide wall 62, anchoring a vibration isolation rubber block 64 at an installation position by using universal glue, wherein the vibration isolation rubber blocks 64 of partial brands, such as QPLAN, have front and back differences and need not be reversely installed; laying a bottom supporting steel plate 66 on the vibration isolation rubber block 64 to form a pouring bin, laying waterproof films on the bin wall and the bottom of the pouring bin, then binding a reinforcement cage in the pouring bin and pouring a cast-in-place pedestal 61, and sealing a gap between the guide wall 62 and the cast-in-place pedestal 61 by a sealant 65 after concrete is solidified; note that the cushion 63 cannot be fixed with any nail or screw so as not to form an acoustic bridge; if the distance between the outer side of the guide wall 62 and the house wall including the door and the window is within 100 mm, the vibration isolation rubber pad 63 should be adhered to the side, close to the house wall, of the guide wall 62;
step three, beam column construction: after the strength of the cast-in-place pedestal 61 reaches the standard, a strut 2 is installed on the cast-in-place pedestal 61 and fixed by an anchor bolt, and then a steel beam 5 is installed;
step four, constructing a resonance sound absorption layer 4: welding the edge of the resonance sound absorption layer 4 with the steel beam 5, and adhering a vibration isolation rubber pad 63 to the edge adjacent to the wall; also, the vibration isolating rubber pad 63 herein cannot be fixed with any nail or screw so as not to form an acoustic bridge; in addition, in each part of the utility model, except the bottom of the guide wall 62, all places which may contact with the original floor 1 or the house wall including doors and windows should be pasted with vibration isolation rubber pads 63 to break the acoustic bridge;
fifthly, sticking asbestos cloth 311 at the bottom of the profiled steel sheet 31, laying the profiled steel sheet 31 matched with the bottom of the new floor panel 3 in shape on the steel beam 5, sticking a vibration isolation rubber pad 63 at the edge of the profiled steel sheet 31, setting the vibration isolation rubber pad 63 at least 20 mm higher than the finished surface of the new floor panel 3, binding a reinforcement cage of the new floor panel 3, if a vertical part exists in the new floor panel 3, setting a layer of template outside the vertical part, and then pouring the new floor panel 3.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides a full frequency noise proof floor surface layer system for the noise insulation of the floor of the non-bottom floor of building that has come into use reforms transform, its characterized in that: the novel floor slab comprises a novel floor slab (3) erected on an original floor slab (1) through a steel beam (5) and a strut (2), wherein a resonance sound absorption layer (4) is arranged below the novel floor slab (3), the original floor slab (1) and the novel floor slab (3) are completely separated by the resonance sound absorption layer (4), and a closed cavity is defined by the resonance sound absorption layer (4) and the novel floor slab (3);
a column foot (6) is arranged on the lower end pad of the strut (2), the column foot (6) comprises a cast-in-place pedestal (61) positioned at the lower end of the strut (2) and a guide wall (62) arranged around the cast-in-place pedestal (61) in a circle, a vibration isolation rubber pad (63) is plugged between the guide wall (62) and the cast-in-place pedestal (61), and a vibration isolation rubber block (64) is arranged below the cast-in-place pedestal (61);
the resonance sound absorption layer (4) is formed by splicing thin resonance sound absorption plates with wavy surfaces.
2. The full frequency acoustical floor system of claim 1 wherein: a profiled steel plate (31) is paved on the steel beam (5), the new floor slab (3) is a cast-in-place concrete slab arranged on the profiled steel plate (31), and damping paint (41) is coated on the lower surface of the profiled steel plate (31).
3. The full frequency acoustical floor system of claim 2 wherein: all leave the clearance that is used for preventing the acoustic bridge production between new floor panel (3) border, profiled sheet (31) border and resonance sound absorption layer (4) border and the house wall.
4. The full frequency acoustical floor system of claim 3 wherein: the sheet metal resonance acoustic board is a metal plate with a smooth upper surface, the lower surface of the sheet metal resonance acoustic board is coated with damping paint (41), and the wave base surface of the sheet metal resonance acoustic board is arranged in parallel to the steel beam (5).
5. The full frequency acoustical floor system of claim 4 wherein: a bottom supporting steel plate (66) is arranged between the cast-in-place pedestal (61) and the vibration isolation rubber block (64), the edge of the bottom supporting steel plate (66) is arranged by being attached to a vibration isolation rubber pad (63) on the inner side of the guide wall (62), and forms a pouring bin with the vibration isolation rubber pad (63) on the inner side of the guide wall (62) for pouring the cast-in-place pedestal (61), and waterproof films for preventing concrete leakage are laid on the bin wall and the bottom of the pouring bin.
6. The full frequency acoustical floor system of claim 5 wherein: asbestos cloth (311) has still been laid to profiled steel sheet (31) lower surface, asbestos cloth (311) paste damping coating (41) setting of profiled steel sheet (31), with profiled steel sheet (31) fixed connection, and gapped between with resonance sound absorbing layer (4).
7. The full frequency acoustical floor system of claim 6 wherein: resonance sound absorbing layer (4) are constituteed by the sheet metal resonance acoustic baffle that sets up between adjacent girder steel (5) and between girder steel (5) and the wall, sheet metal resonance acoustic baffle border and girder steel (5) welded connection.
8. The full frequency acoustical floor system of claim 7 wherein: and vibration isolation rubber pads (63) are plugged in the gaps between the edge of the new floor panel (3), the edge of the resonance sound absorption layer (4) and the edge of the profiled steel sheet (31) and the wall of the house respectively.
9. The full frequency acoustical floor system of claim 8 wherein: the wavy edge of the thin plate resonance sound absorption plate is in a sawtooth shape, and the vertex angle of the sawtooth is not less than 60 degrees.
10. The full frequency acoustical floor system of claim 9 wherein: the new floor panel (3) comprises a horizontal part and a step part, and the thin plate resonance sound absorption plate positioned on the step part is arranged by being attached to the ridge of the lower surface of the step part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021313628.4U CN212671263U (en) | 2020-07-07 | 2020-07-07 | Full frequency sound insulation floor system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021313628.4U CN212671263U (en) | 2020-07-07 | 2020-07-07 | Full frequency sound insulation floor system |
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| CN212671263U true CN212671263U (en) | 2021-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764596A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Floor slab additional sound insulation surface layer system and construction method thereof |
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2020
- 2020-07-07 CN CN202021313628.4U patent/CN212671263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764596A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Floor slab additional sound insulation surface layer system and construction method thereof |
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