CN213868488U - Sound-absorbing vibration-damping floating floor ground structure for large equipment room of public building - Google Patents
Sound-absorbing vibration-damping floating floor ground structure for large equipment room of public building Download PDFInfo
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Abstract
The utility model discloses a floor ground structure is floated in sound absorption damping for public building main equipment room, include concrete bottom plate, float basic structure, equipment concrete damping basis and cuff concrete, float basic structure of building includes: the first waterproof layer is arranged on the top of the concrete bottom plate; the floating vibration isolation cushion layer is arranged on the top of the first waterproof layer; the second waterproof layer is arranged on the top of the floating vibration isolation cushion layer; the steel plate layer is arranged on the top of the second waterproof layer; the equipment concrete vibration damping foundation is poured and formed at the top of the steel plate layer, the hoop concrete is arranged on the peripheries of the floating foundation structure and the equipment concrete vibration damping foundation, the top of the hoop concrete is flush with the top of the equipment concrete vibration damping foundation, and the outer boundary of the floating foundation structure is arranged on the outer side of the equipment foundation. The utility model provides an equipment foundation vibration transaudient problem, make the theater can reach the design result of use.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to floor ground structure is floated in sound absorption damping for public building main equipment room.
Background
With the continuous development of social economy, the cultural and mental demands of people are higher and higher, and large public buildings such as movie theater cultural entertainment grow up like bamboo shoots in spring all over the country. When the buildings are used for entertainment and cultural activities, the short-term large flow of people is usually considered, and more large-scale mechanical equipment must be configured to meet the requirements of fire protection, smoke exhaust, ventilation and the like. These mechanical devices often generate large vibration and noise during operation, which can seriously affect the use effect of the architecture of the theatre.
Aiming at the problems, in the prior art, facing sound-absorbing materials such as a channel wood sound-absorbing board, an FC perforated sound-absorbing board, a mineral wool board and the like are adopted, non-woven fabrics are pasted in the facing sound-absorbing materials, and sound-absorbing glass wool is embedded in a cavity of a light steel keel, so that the method can meet the sound-absorbing and noise-reducing requirements of theater buildings through acoustic rechecking. However, for the noise problem of the ground, especially for the sound absorption and vibration reduction problem of large equipment rooms, a perfect solution is not available at present.
At present, to the sound absorption and vibration reduction problems of large equipment, rubber vibration isolation cushion blocks can be lined below supporting legs and on an equipment foundation during equipment installation so as to reduce vibration caused by equipment operation. The method can be used as a first defense line for reducing the adverse effect of the vibration noise of the equipment, can meet the requirements of common buildings, but can not meet the requirements of movie theatre buildings, and can also transmit larger vibration noise to audience areas, thereby affecting the performance effect.
Chinese patent CN109281432A discloses a prefabricated bottom plate of a well-shaped grid and an air bag template structure, wherein the air bag template is a hollow structure, rectangular or square convex air bags are arranged on the outer surface of the air bag template in parallel, a vertical steel plate I, a vertical steel plate II, a transverse steel plate I, a transverse steel plate II, a transverse steel plate III and a transverse steel plate IV are arranged on the inner surface of the air bag template, the air bag template is connected with the vertical steel plate and the transverse steel plate by rivets, and an air valve is arranged at the end part of the air bag template; in each row of transversely parallel convex air bags, the inner surfaces of two adjacent rows of convex air bags are respectively provided with a transverse steel plate I and a transverse steel plate II, each transverse steel plate I is respectively and vertically provided with a vertical steel plate I along two transverse side surfaces, and each transverse steel plate II is respectively and vertically provided with a vertical steel plate II along two longitudinal side surfaces; a transverse steel plate IV is arranged on the inner surface of the top of the air bag template between each row of the convex air bags which are transversely parallel; a transverse steel plate III is arranged on the inner surface of the top of the air bag template between each row of the raised air bags which are longitudinally parallel; an end steel baffle and a lateral steel baffle are respectively arranged on the periphery of the air bag template, sawteeth of the end steel baffle and the lateral steel baffle correspond to the protruding air bag and are inserted and assembled, bolt holes arranged on the end steel baffle are aligned with bolt holes arranged on the upper portion of the lateral steel baffle, and the end steel baffle and the lateral steel baffle are connected and fixed through bolt rods to form a closed template; the longitudinal stress steel bars and the transverse stress steel bars are welded into a steel bar mesh, concrete cushion blocks are placed on the protruding air bags of the air bag template and are arranged in a V shape, the steel bar mesh is placed on the cushion blocks in the closed template, and concrete is poured in the closed template to form the prefabricated bottom plate with the well-shaped grids. This take well word check precast concrete bottom plate can better satisfy the two-way atress of precast bottom plate, but inhales the sound damping effect relatively poor.
Chinese patent CN110453884A discloses a construction method of a full floating construction vibration reduction sound insulation floor, which comprises the following steps: building a surrounding edge structure to form a floating area to be built; an elastic isolation layer is arranged on the inner side surface of the surrounding edge structure; arranging an elastic layer in the region to be built; pouring a floating layer on the elastic layer; and filling a sealant between the floating building layer and the surrounding edge structure, wherein the sealant is arranged on the elastic isolation layer. The utility model discloses a damping sound insulation floor's elastic layer includes that a plurality of damping pad, a plurality of damping spring and a plurality of sound proof glass are cotton, and a plurality of damping pad intervals are laid evenly on treating the floor of building in the floating region, and damping spring's internal diameter is greater than the external diameter of damping pad, and the damping spring cover is established on the damping pad, and the sound proof glass cotton is filled between two adjacent damping spring. At first this utility model's envelope build by laying bricks or stones the surrounding edge structure, and ground does not have lug connection, because the brick mixes anti-seismic performance very poor, if under the great or large-scale equipment of equipment vibration or the condition of long-time work, there is the potential safety hazard very easily in the fracture of shaking. Secondly, the elastic isolation layer is glued on the surrounding edge structure (masonry) through glue, and the double faced adhesive tape is difficult to be glued with the masonry, so that the elastic isolation layer is easy to fall off when concrete is poured. In addition, this utility model's is waterproof to return to the concrete suitable for reading on, and is waterproof hugged closely on the steel sheet, can not have the surplus, and during concreting, because the reinforcing bar lower part is the glass cotton, the steel sheet is probably inclined when pouring, will struggle the waterproof of another side like this, has waterproof hidden danger.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a floor ground structure is floated in sound absorption damping for public building main equipment room to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a floor ground structure is floated in sound absorption damping for public building main equipment room, include concrete bottom plate, float basic structure, equipment concrete damping basis and cuff concrete, float basic structure and include: the first waterproof layer is arranged on the top of the concrete bottom plate; the floating vibration isolation cushion layer is arranged on the top of the first waterproof layer; the second waterproof layer is arranged on the top of the floating vibration isolation cushion layer; the steel plate layer is arranged on the top of the second waterproof layer; the device concrete vibration damping foundation is cast and molded at the top of the steel plate layer, the hoop concrete is arranged at the peripheries of the floating foundation structure and the device concrete vibration damping foundation, the top of the hoop concrete is flush with the top of the device concrete vibration damping foundation, and the outer boundary of the floating foundation structure is arranged at the outer side of the device foundation; and wherein, the superficial vibration isolation bed course of building includes that the sound glass cotton of inhaling that the level was laid has seted up a plurality of vertical through-holes that are matrix form and distribute in inhaling the sound glass cotton, is provided with the rubber cushion in the vertical through-hole.
In a preferred embodiment, a ready-mixed mortar leveling layer is arranged at the top of the concrete bottom plate, the outer boundary of the floating foundation structure is expanded by at least 150mm, the inner wall of the hoop concrete is respectively attached to the outer walls of the floating foundation structure and the equipment concrete vibration damping foundation, the hoop concrete is a reinforced concrete structure, and a plurality of reinforcing steel bars fixedly connected with the concrete bottom plate are arranged in the hoop concrete.
In a preferred embodiment, the cross section of the sound-absorbing glass wool is square, the bottom of the rubber cushion block is pasted with a double-sided adhesive tape, the thickness of the sound-absorbing glass wool is consistent with the height of the rubber cushion block, the distance between two adjacent vertical through holes which are respectively arranged along the transverse direction and the longitudinal direction is equal, and the distance is less than or equal to 300 mm.
In a preferred embodiment, the vertical through hole is of a cubic structure, and the rubber cushion block is of a cubic structure, and the size of the rubber cushion block is consistent with that of the vertical through hole, so that the outer wall of the rubber cushion block is tightly attached to the inner wall of the vertical through hole.
In a preferred embodiment, the first waterproof layer and the second waterproof layer are both PE films, and the first waterproof layer and the second waterproof layer have the same thickness.
In a preferred embodiment, the thicknesses of the first waterproof layer and the second waterproof layer are both 1mm, the thickness of the floating vibration isolation cushion layer is 50mm, the thickness of the steel plate layer is 2mm, and the thickness of the ready-mixed mortar leveling layer is 20 mm.
In a preferred embodiment, the steel bars in the hoop concrete comprise a plurality of longitudinal steel bars, an upper reinforcing bar and a hoop, two longitudinal steel bars are arranged on each side face, the longitudinal steel bars are three-stage steel bars with the diameter of 12mm, and the upper reinforcing bar is two three-stage steel bars with the diameter of 10 mm.
In a preferred embodiment, the cross-sectional areas of the ready-mixed mortar leveling layer, the first waterproof layer, the floating vibration isolation cushion layer, the second waterproof layer and the steel plate layer are all equal.
Compared with the prior art, the utility model discloses a floor ground structure is floated in sound absorption damping for public building main equipment room's beneficial effect is: the utility model discloses a float and build vibration isolation bed course passes through rubber cushion and the cotton mode that combines together to arrange of sound glass of inhaling, has solved the equipment foundation vibration transaudient problem, makes the theater can reach the design result of use. And the peripheral hoop concrete adopts a reinforced concrete structure, is connected with the ground in a bar planting mode, and is bound with steel bars inside, so that the overall safety and vibration resistance are obviously improved.
Drawings
Fig. 1 is a sectional elevation view of a sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to a preferred embodiment of the present invention.
Fig. 2 is a perspective view of a floating building foundation structure and hoop concrete according to a preferred embodiment of the present invention.
Fig. 3 is a bottom view of the floating building foundation structure according to the preferred embodiment of the present invention.
Fig. 4 is a schematic perspective view of a hoop concrete according to a preferred embodiment of the present invention.
Fig. 5 is a schematic perspective view of a floating vibration isolation cushion according to a preferred embodiment of the present invention.
Fig. 6 is a flow chart of a construction method of a sound absorption and vibration reduction floating floor ground structure for a large equipment room of a public building according to a preferred embodiment of the invention.
Description of reference numerals:
1-concrete bottom plate, 2-floating foundation structure, 21-first waterproof layer, 22-floating vibration isolation cushion layer, 23-second waterproof layer, 24-steel plate layer, 221-sound absorption glass wool, 222-rubber cushion block, 3-equipment concrete vibration reduction foundation, 4-hoop concrete, 5-equipment foundation and 6-ready mixed mortar leveling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative work, all belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-5, the utility model discloses a sound absorption damping floating floor ground structure for public building large-scale equipment room of preferred embodiment, including concrete bottom plate 1, float and build foundation structure 2, equipment concrete damping basis 3 and cuff concrete 4. The floating foundation structure 2 comprises a first waterproof layer 21, a floating vibration isolation cushion layer 22, a second waterproof layer 23 and a steel plate layer 24. The first waterproof layer 21 sets up at the top of concrete floor 1, floats and builds vibration isolation bed course 22 and sets up at the top of first waterproof layer 21, and second waterproof layer 23 sets up at the top of floating vibration isolation bed course 22, and steel deck 24 sets up at the top of second waterproof layer 23. Wherein, equipment concrete damping basis 3 pours the shaping at the top of steel deck 24, and cuff concrete 4 sets up in the periphery of floating building foundation 2 and equipment concrete damping basis 3, and the top of cuff concrete 4 is leveled mutually with the top of equipment concrete damping basis 3, and floats the outer boundary setting of building foundation 2 in the outside of equipment basis 5. And wherein, the floating vibration isolation cushion layer 22 includes the sound absorption glass wool 221 of level laying, has seted up a plurality of vertical through-holes that are the matrix form and distribute in the sound absorption glass wool 221, is provided with rubber cushion 222 in the vertical through-hole.
Example 2:
in a preferred embodiment, as shown in fig. 1, when the flatness of the original structure surface does not meet the requirement, the influence on the damping effect is large, and the ground leveling needs to be performed first. A ready-mixed mortar leveling layer 6 is arranged on the top of the concrete bottom plate 1, and the outward expansion range W1 of the floating foundation structure 2 for the equipment foundation 5 is at least 150 mm. And the inner wall of the hoop concrete 4 is respectively attached to the outer walls of the floating building foundation structure 2 and the equipment concrete vibration damping foundation 3. The hoop concrete 4 is of a reinforced concrete structure, and a plurality of steel bars fixedly connected with the concrete bottom plate 1 are arranged in the hoop concrete 4, so that the integral vibration resistance and safety are enhanced.
Further, the cross section of the sound absorption glass wool 221 is square, and double-sided adhesive tape is adhered to the bottom of the rubber cushion block 222 to prevent the rubber cushion block 222 from shaking and shifting before concrete is not poured. The thickness of the sound-absorbing glass wool 221 is consistent with the height of the rubber cushion block 222, the distance between two adjacent vertical through holes which are respectively arranged along the transverse direction and the longitudinal direction is equal, and the distance W2 is not more than 300 mm.
Further preferably, the cube structure of vertical through-hole, and rubber cushion 222 is the cube structure, and the size of rubber cushion 222 is unanimous with the size of vertical through-hole to make the outer wall of rubber cushion 222 closely laminate with the inner wall of vertical through-hole.
Further, first waterproof layer 21 and second waterproof layer 23 are the PE membrane, and the PE membrane can block the moisture and get into, inhales the cotton influence sound effect of inhaling such as soaking that wets of sound glass. The thicknesses of the first waterproof layer 21 and the second waterproof layer 23 are the same, and the cross sections of the ready-mixed mortar leveling layer 6, the first waterproof layer 21, the floating vibration isolation cushion layer 22, the second waterproof layer 23 and the steel plate layer 24 are all square and equal.
Furthermore, the steel bars in the hoop concrete 4 comprise a plurality of longitudinal steel bars, upper reinforcing bars and hoop bars, two longitudinal steel bars are arranged on each side face, the longitudinal steel bars are three-level steel bars with the diameter of 12mm, and the upper reinforcing bars are two three-level steel bars with the diameter of 10 mm.
Example 3:
in a preferred embodiment, the thickness of the first waterproof layer 21 and the second waterproof layer 23 is 1mm, and the thickness of the steel deck 24 is 2 mm. The ready-mixed mortar leveling layer 6 is made of C30 fine-stone concrete, and the thickness of the ready-mixed mortar leveling layer is 20 mm. The thickness of the floating vibration isolation cushion layer 22 is 50mm, wherein the thickness of the sound absorption glass wool 221 is 50mm, 24kg/m thin film is obtained by carrying out thin film cultivation, and the size of the rubber cushion block 222 is 50mm multiplied by 50 mm. The distance between two adjacent vertical through holes respectively arranged in the transverse direction and the longitudinal direction is 300 mm. The cross sectional areas of the ready-mixed mortar leveling layer 6, the first waterproof layer 21, the floating vibration isolation cushion layer 22, the second waterproof layer 23 and the steel plate layer 24 are all 11m2。
Example 4:
as shown in FIG. 6, the construction method of the utility model for the sound absorption and vibration reduction floating floor ground structure of the large equipment room of the public building comprises the following steps:
step 601: and (3) measuring the flatness of the concrete bottom plate (floor and roof plate), and if the flatness of the original structure surface meets the requirement, directly performing the step 602.
Step 602: and laying a first waterproof layer above the concrete bottom plate.
Step 603: and a floating vibration isolation cushion layer is arranged on the top of the first waterproof layer. Peripheral concrete cuff is not considered in the equipment foundation, tailor according to inside core size and inhale sound glass cotton, then lay at the top of first waterproof layer and tailor good sound glass cotton of inhaling, emit rubber cushion central point position on inhaling sound glass cotton, and a plurality of vertical through-holes have been seted up, lay rubber cushion in vertical through-hole, it is the same with inhaling sound glass cotton thickness to make rubber cushion thickness, upper portion and the cotton parallel and level of sound glass of inhaling, rubber cushion's interaxial distance is 300mm, the double faced adhesive tape is pasted in the rubber cushion lower part, in order to prevent that the cushion from rocking the aversion before not pouring the concrete, and, vertical through-hole is the matrix form and distributes.
Step 604: a second waterproof layer is laid on the top of the floating vibration isolation cushion layer, and the upper waterproof layer and the lower waterproof layer can respectively prevent moisture of concrete on the ground and the upper portion from entering the sound absorption glass wool. Preferably, the first waterproof layer and the second waterproof layer are both PE films.
Step 605: and laying a steel plate layer on the top of the second waterproof layer. The steel plate is an integral welding-free steel plate, and when the steel plate is laid, the damage to the waterproof layer and the disturbance to the rubber cushion block are avoided as much as possible. If damage to the previous finished product is found, immediate repair is required.
Step 606: and pouring a concrete vibration reduction foundation of the equipment above the steel plate layer. The equipment foundation concrete is commercial concrete, and when the concrete is poured, the concrete is poured from the middle part of the steel plate, and the pouring is strictly forbidden at the edge of the inner side of the template, so that the phenomenon that one side of the steel plate is pressed down and the other side of the steel plate is tilted up to cause irreparable damage to the waterproof layer and the rubber cushion block is avoided. The vibration is not possible at the edge, and the vibration is performed in the same way.
Step 607: and constructing the hoop concrete. The hoop concrete is arranged on the periphery of the floating building foundation structure and the equipment concrete vibration damping foundation, and the top of the hoop concrete is flush with the top of the equipment concrete vibration damping foundation. The top of the hoop concrete is flush with the top of the equipment concrete vibration damping foundation, and necessary steel bars are arranged in the hoop concrete to resist the lateral thrust of the floating foundation and prevent the direction-finding instability of the floating foundation.
Example 5:
in a preferred embodiment, the construction method further comprises the steps of: if the flatness of the concrete bottom plate (floor and roof panel) does not meet the requirement, a pre-mixed mortar leveling layer is arranged on the measured concrete bottom plate, so that the flatness deviation after leveling is within the range of 2 mm. The specific method comprises the following steps: and (3) leveling the original structure ground by using bagged dry-mixed DS-M20 ground mortar, wherein the thickness of the leveling layer is determined according to the unevenness degree of the original structure ground, and the deviation of the flatness after leveling is ensured to be within the range of 2 mm. Firstly, in the range of a floating foundation, ash cakes with unified heights are arranged every 0.5m, the size of each ash cake is 50mm multiplied by the thickness of a leveling layer, and the heights of five ash cakes are controlled by a level meter to be unified. After the ash cake is completely dried to a certain strength, adding water into the DS-M20 ground mortar for stirring until certain fluidity is met and the mixture is not too dilute. And shoveling the stirred mortar into the foundation by using a shovel, and ensuring that no mortar exists at the upper part of the ash cake so as not to influence the later leveling. And after the mortar is filled to the required height, scraping the mortar to the same elevation with the mortar cake by using a 1m scraping bar, and strictly forbidding people to tread before the mortar is not dried completely and reaches certain strength. And after the mortar reaches the strength, detecting the flatness by using a level gauge, sampling according to the interval of 0.50m, and meeting the requirement when the flatness deviation is within the range of 2 mm. After detection, the flatness reaches the construction requirement of the floating foundation after the DS-M20 ground mortar is leveled, and the next construction can be carried out.
Further, the construction method also comprises the following steps: the formwork is erected before the equipment foundation concrete is poured, and the formwork is dismantled after the equipment foundation concrete is poured and before the hoop concrete is constructed. The formwork is erected outside the pouring area by adopting bamboo plywood with the thickness of 12mm, and the bamboo plywood on the two sides is erected with a batten keel and is reinforced by adopting an external-bracing internal-pulling mode.
Further, the construction of the hoop concrete comprises the following steps: erecting a template at the periphery of a floating foundation structure and an equipment concrete vibration damping foundation; implanting a plurality of vertically arranged longitudinal steel bars into a concrete bottom plate at the inner side of the template, wherein each side surface is provided with two longitudinal steel bars, and the top of each longitudinal steel bar is provided with an upper reinforcing bar; and pouring concrete to form the hoop concrete structure. Because the steel bar connected with the ground is arranged in the hoop concrete, the lateral thrust of the floating foundation can be effectively resisted, and the direction-finding instability of the floating foundation is prevented.
Further, the construction method also comprises the following steps: and after the construction is finished, performing acoustic on-site rechecking, and calculating whether the requirements of sound absorption and vibration isolation are met. The utility model discloses a main damping part that is used for sound absorption damping in public building main equipment room to float floor ground structure is rubber pad, and its natural frequency is about 16-30Hz, and the damping effect is obvious, and the vibration isolation performance is better.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a floor ground structure is built to sound absorption damping floating for public building main equipment room which characterized in that: a floor ground structure is built to sound absorption damping floating for public building main equipment room includes concrete bottom plate, floats and builds foundation structure, equipment concrete damping basis and cuff concrete, it includes to float and builds foundation structure:
a first waterproof layer disposed on top of the concrete floor;
the floating vibration isolation cushion layer is arranged on the top of the first waterproof layer;
the second waterproof layer is arranged on the top of the floating vibration isolation cushion layer;
the steel plate layer is arranged on the top of the second waterproof layer;
the device concrete vibration-damping foundation is cast and molded at the top of the steel plate layer, the hoop concrete is arranged on the peripheries of the floating foundation structure and the device concrete vibration-damping foundation, the top of the hoop concrete is flush with the top of the device concrete vibration-damping foundation, and the outer boundary of the floating foundation structure is arranged on the outer side of the device foundation;
and wherein, the superficial vibration isolation bed course of building includes that the sound of inhaling that the level was laid is cotton, inhale and to have seted up a plurality of vertical through-holes that are matrix form and distribute in the cotton, be provided with the rubber cushion in the vertical through-hole.
2. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 1, wherein: the top of the concrete bottom plate is provided with a ready-mixed mortar leveling layer, the outer boundary of the floating foundation structure is at least 150mm of the outer expansion of the equipment foundation, the inner wall of the hoop concrete is respectively attached to the outer walls of the floating foundation structure and the equipment concrete vibration reduction foundation, the hoop concrete is of a reinforced concrete structure, and a plurality of reinforcing steel bars fixedly connected with the concrete bottom plate are arranged in the hoop concrete.
3. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 1, wherein: the cross section of the sound-absorbing glass wool is square, the bottom of the rubber cushion block is pasted with double faced adhesive tape, the thickness of the sound-absorbing glass wool is consistent with the height of the rubber cushion block, the sound-absorbing glass wool is arranged horizontally and longitudinally, the distance between every two adjacent vertical through holes is equal, and the distance is smaller than or equal to 300 mm.
4. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 1, wherein: the square structure of vertical through-hole, just the rubber cushion is the square structure, the size of rubber cushion with the size of vertical through-hole is unanimous, so that the outer wall of rubber cushion with the inner wall of vertical through-hole closely laminates.
5. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 2, wherein: the first waterproof layer and the second waterproof layer are both PE films, and the first waterproof layer and the second waterproof layer are the same in thickness.
6. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 5, wherein: the thickness of the first waterproof layer and the second waterproof layer is 1mm, the thickness of the floating vibration isolation cushion layer is 50mm, the thickness of the steel plate layer is 2mm, and the thickness of the ready-mixed mortar leveling layer is 20 mm.
7. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 1, wherein: the steel bars in the hoop concrete comprise a plurality of longitudinal steel bars, upper reinforcing bars and hooping bars, two longitudinal steel bars are arranged on each side face, the longitudinal steel bars are three-level steel bars with the diameter of 12mm, and the upper reinforcing bars are two three-level steel bars with the diameter of 10 mm.
8. The sound absorbing and vibration damping floating floor structure for a large equipment room of a public building according to claim 2, wherein: the cross-sectional areas of the ready-mixed mortar leveling layer, the first waterproof layer, the floating vibration isolation cushion layer, the second waterproof layer and the steel plate layer are equal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022862861.4U CN213868488U (en) | 2020-12-03 | 2020-12-03 | Sound-absorbing vibration-damping floating floor ground structure for large equipment room of public building |
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| CN202022862861.4U CN213868488U (en) | 2020-12-03 | 2020-12-03 | Sound-absorbing vibration-damping floating floor ground structure for large equipment room of public building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482688A (en) * | 2020-12-03 | 2021-03-12 | 中国建筑土木建设有限公司 | Sound absorption and vibration reduction floating floor ground structure for theater and construction method thereof |
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2020
- 2020-12-03 CN CN202022862861.4U patent/CN213868488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482688A (en) * | 2020-12-03 | 2021-03-12 | 中国建筑土木建设有限公司 | Sound absorption and vibration reduction floating floor ground structure for theater and construction method thereof |
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