CN221663946U - Floating vibration isolation device with multistage unloading structure - Google Patents

Abstract

The utility model discloses a floating vibration isolation device with a multistage unloading structure, which comprises a roof floor slab and a multistage unloading structure, wherein the multistage unloading structure is arranged above the roof floor slab, the multistage unloading structure comprises a plurality of groups of steel structures, a plurality of cylindrical piers and a floating foundation layer, the cylindrical piers are arranged above the floating foundation layer to form a column pier group, the floating foundation layer is arranged above the roof floor slab, a first vibration isolation structure and a second vibration isolation structure are respectively arranged above and below the floating foundation layer, the first vibration isolation structure comprises a plurality of vibration isolation and vibration reduction blocks, a gap is formed between the two vibration isolation and vibration reduction blocks connected with each other, and noise elimination rock wool is filled in the gap, and the second vibration isolation structure comprises a cement mortar leveling layer and a polyurethane waterproof layer which are sequentially arranged below the floating foundation layer from top to bottom. The utility model utilizes a multi-stage unloading structure to facilitate the increase of the safety and stability of the building structure.

Description

Floating vibration isolation device with multistage unloading structure

Technical Field

The utility model relates to the technical field of building construction, in particular to a floating vibration isolation device with a multistage unloading structure.

Background

The air conditioning equipment for energy storage is usually provided with a cooling tower, an air conditioning unit, a cooling water pipeline, a chilled water pipe and other equipment, the cooling tower is used as good heat dissipation equipment, the cooling tower is usually arranged on a building top building, cooling water carrying waste heat exchanges heat with air in a tower body, waste heat is transmitted to the air and is scattered into the atmosphere, the cooling tower of the top building is directly fixed on a floor slab, but the cooling tower is large in load capacity and large in vibration, noise generated during normal operation of the cooling tower comprises shallow water noise, fan air inlet and outlet noise, motor noise, circulating water pump noise, water pipeline vibration radiation noise and the like, the fan noise and the motor noise of the cooling tower are main noise sources, the noise of an air outlet is maximum, structural fatigue is aggravated due to vibration, the service life is shortened, serious vibration can cause heavy deformation of a tower body structure and serious structural whole collapse and other serious consequences, and therefore, the control and reduction of the vibration of the cooling tower are very important. Therefore, in order to reduce vibration of the cooling tower, in the construction process of the existing building, a layer of floating floor slab and a concrete seat are usually constructed at the top of the floor slab, cooling tower equipment is supported by the concrete seat, if the building is a super high-rise building, a floating floor slab structure is usually adopted, an elastic cushion layer is firstly filled on the floor slab, then the floor is poured, the floor slab is completely isolated from the floor by the elastic cushion layer, the vibration reduction and sound insulation effects are realized by the elastic cushion layer, and the vibration reduction structure of the existing building has the following problems:

1) In the traditional building structure, a concrete seat support is adopted in a cooling tower supporting system, so that the vibration resistance is poor;

2) The traditional rubber shock pad is adopted, so that the shock absorption effect is not obvious and is poor;

3) The vibration reduction and sound insulation effects of the floating floor structure are not obvious, and the area of the building is generally larger, so that if the floating floor structure is adopted for the whole floor, the cost is increased, the construction period of the building is prolonged easily, and the waste of manpower and material resources is caused.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the floating vibration isolation device which converts the concentrated load of the cooling tower into the distributed load by utilizing the column pier group formed by the column piers with the multistage unloading structure, disperses the concentrated load transmitted by each column pier through the floating floor and the floating foundation surface layer, and uses the vibration isolation and vibration reduction blocks paved on the floating foundation surface layer to absorb vibration, and finally loads the roof floor in the form of the distributed load, thereby achieving good vibration isolation and load reduction effects, being beneficial to increasing the safety stability of the building structure, reducing a large amount of noise generated in the using process of the cooling tower, being beneficial to increasing the using comfort of a user of the building, and adopting the profile steel structure as the cooling tower support and increasing the vibration resistance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a float vibration isolation device with multistage uninstallation structure, float vibration isolation device includes roofing floor and multistage uninstallation structure, multistage uninstallation structure installs in the top of roofing floor, multistage uninstallation structure is including a plurality of sets of shaped steel structures that are used for supporting cooling tower equipment, with shaped steel structure equiquantity a plurality of cylindricality pier, float the foundation layer, each set of shaped steel structure corresponds a cylindricality pier, shaped steel structure installs in the top of cylindricality pier, a plurality of cylindricality pier are installed in the top of float foundation layer in order to form the pier crowd, float the foundation layer and install in the top of roofing floor, float the top and the below of foundation layer are equipped with first layer vibration isolation structure and second vibration isolation structure respectively, first layer vibration isolation structure includes a plurality of vibration isolation vibration block, a plurality of vibration isolation block is laid in the top of float foundation layer with mutual interval, is formed with the clearance between two continuous vibration isolation block, the clearance intussuseption is filled with noise elimination rock wool, the second vibration isolation structure includes cement mortar layer and the setting up in proper order in the below the foundation layer in order on the top of the cement mortar layer of float foundation layer and cement mortar layer, the cement mortar layer sets up the cement mortar layer on the cement mortar layer.

Further, the multistage unloading structure comprises a floating floor, the floating floor is arranged above the first layer of vibration isolation structure, a concrete surrounding edge inverted ridge structure is poured on the periphery of the floating floor, and the bottom of the concrete surrounding edge inverted ridge structure is fixed on a floating foundation surface layer.

Further, the multistage unloading structure comprises a rubber and plastic surrounding edge rubber pad, the rubber and plastic surrounding edge rubber pad is fixed between the floating floor slab and the concrete surrounding edge inverted ridge structure so as to seal the periphery of the floating floor slab, and the upper end of the rubber and plastic surrounding edge rubber pad is filled with silicone sealant.

Further, the multi-stage unloading structure comprises a galvanized steel sheet laid over the first layer of vibration isolation structure and below the floating floor.

Further, a waterproof layer is paved above the galvanized steel sheet.

Further, be equipped with the escape canal on the cement mortar screed-coat, the bottom of the concrete surrounding edge is anti-bank structure pre-buried has a plurality of drain pipes, and a plurality of drain pipes are pre-buried in the bottom of the concrete surrounding edge is anti-bank structure with mutual interval, and interval between two adjacent drain pipes is 1.5m, and the drain pipe is linked together with the escape canal.

Further, the vibration isolation and vibration reduction block adopts inorganic material high-density glass fiber vibration isolation blocks with the model specification of 49mm and 50 mm.

Further, the outer surface of the vibration isolation and vibration reduction block is coated with a layer of high-elasticity film.

Further, the inside of the floating foundation layer is bound with a bidirectional reinforcing steel bar net sheet with the thickness of A8mm@150mm.

Further, through holes for the metal sleeve to pass through are sequentially formed in the floating floor slab and the floating foundation surface layer from top to bottom, gaps are formed between the metal sleeve and the floating floor slab and between the metal sleeve and the floating foundation surface layer after the metal sleeve passes through the through holes, and silicone glass cement is filled in the gaps.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The floating vibration isolation device comprises a roof floor slab and a multistage unloading structure, wherein the multistage unloading structure is arranged above the roof floor slab, the multistage unloading structure comprises a plurality of groups of steel structures, a plurality of cylindrical piers and a floating foundation surface layer, the steel structures are used for supporting cooling tower equipment, the cylindrical piers are arranged above the floating foundation surface layer to form a column pier group, the floating foundation surface layer is arranged above the roof floor slab, a first vibration isolation structure and a second vibration isolation structure are respectively arranged above and below the floating foundation surface layer, the first vibration isolation structure comprises a plurality of vibration isolation vibration blocks, the vibration isolation vibration blocks are paved above the floating foundation surface layer at intervals, a gap is formed between the two vibration isolation vibration blocks, noise elimination rock wool is filled in the gap, and the second vibration isolation structure comprises a cement mortar leveling layer and a polyurethane waterproof layer which are sequentially arranged below the floating foundation surface layer from top to bottom. The utility model converts the concentrated load of the cooling tower into the distributed load by utilizing the column pier group formed by the column piers of the multistage unloading structure, distributes the concentrated load transmitted by each column pier through the floating foundation surface layer, dampens vibration by utilizing the vibration isolation blocks paved on the floating foundation surface layer, and finally loads the roof floor in the form of the distributed load, thereby achieving good vibration isolation and load reduction effects, being beneficial to increasing the safety and stability of the building structure, reducing a large amount of noise generated in the using process of the cooling tower, being beneficial to increasing the using comfort of a building user, and adopting the profile steel structure as a supporting system of the cooling tower, and being capable of improving the vibration resistance.

(2) The multistage unloading structure comprises a floating floor slab, the floating floor slab is arranged above a first layer of vibration isolation structure, a concrete surrounding edge inverted ridge structure is poured on the periphery of the floating floor slab, the bottom of the concrete surrounding edge inverted ridge structure is fixed on a floating foundation surface layer, the multistage unloading structure further comprises a rubber and plastic surrounding edge rubber mat, the rubber and plastic surrounding edge rubber mat is fixed between the floating floor slab and the concrete surrounding edge inverted ridge structure so as to seal the periphery of the floating floor slab, silicone sealant is filled at the upper end of the rubber and plastic surrounding edge rubber mat, and vibration transmission of a cooling tower in the horizontal direction can be weakened through the rubber and plastic surrounding edge rubber mat.

(3) The utility model is characterized in that a drain ditch is arranged on the cement mortar leveling layer, a plurality of drain pipes are pre-embedded at the bottom of the concrete surrounding edge anti-bank structure, the plurality of drain pipes are mutually pre-embedded at the bottom of the concrete surrounding edge anti-bank structure at intervals, and the drain pipes are communicated with the drain ditch. By arranging the drain pipe and the drain ditch, condensed water generated by refrigerating of the building machine room is conveniently drained or the drain water is conveniently maintained.

Drawings

Fig. 1 is a schematic structural view of a floating vibration isolation device of the present utility model;

fig. 2 is a partial schematic view of the floating vibration isolation device of the present utility model;

FIG. 3 is an enlarged schematic view of a detail of portion A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic view of the structure of the metal sleeve of the present utility model passing through a floating floor and a floating foundation layer;

FIG. 5 is a schematic view of the structure of the cooling tower of the present utility model;

FIG. 6 is a force equivalent schematic diagram of the cooling tower of the present utility model in a floating vibration isolation device.

In the figure, a roof slab 1, a multi-stage unloading structure 2, a section steel structure 21, a cylindrical abutment 22, a floating foundation layer 23, a bidirectional reinforcement mesh 231, a first layer of vibration isolation structure 24, vibration isolation and vibration reduction blocks 241, noise elimination rock wool 242, a second vibration isolation structure 25, a cement mortar leveling layer 251, a polyurethane waterproof layer 252, a rubber and plastic surrounding edge rubber mat 26, a silicone sealant 261, a galvanized steel sheet 27, a waterproof layer 271, a metal sleeve 28, a silicone glass cement 29, a floating floor slab 210, a concrete surrounding edge reverse bank structure 3, a drain pipe 4, a cooling tower 5 and a steel bracket base 51.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 6, the present utility model provides a floating vibration isolation device with a multi-stage unloading structure 2, the floating vibration isolation device comprises a roof floor 1 and the multi-stage unloading structure 2, the multi-stage unloading structure 2 is installed above the roof floor 1, the multi-stage unloading structure 2 comprises a plurality of groups of steel structures 21 for supporting cooling tower 5 equipment, a plurality of column-shaped blocks 22 equal to the steel structures 21, and a floating foundation layer 23, each group of steel structures 21 corresponds to one column-shaped block 22, the steel structures 21 are installed above the column-shaped blocks 22, the column-shaped blocks 22 are installed above the floating foundation layer 23 to form column pier groups, the floating foundation layer 23 is installed above the roof floor 1, a first layer of vibration isolation structure 24 and a second vibration isolation structure 25 are respectively arranged above and below the floating foundation layer 23, the first layer of vibration isolation structure 24 comprises a plurality of vibration isolation blocks 241, the plurality of vibration isolation blocks 241 are paved above the floating foundation layer 23 at intervals, gaps are formed between the two connected vibration isolation blocks 241, the gaps are filled with noise-eliminating rock wool 242, the second vibration isolation structure 252 is arranged below the cement mortar layer 252, and a cement mortar layer 252 is arranged above the cement mortar layer 252 in sequence from top to bottom.

In the concrete implementation of the utility model, the steel structure 21 of the utility model is 150 x 150mm H-shaped steel, the column pier section of the column pier 22 is 250 x 250mm, the column pier 22 is added on the floating foundation surface layer 23, the vibration resistance of the multi-stage unloading structure 2 can be improved, the vibration resistance effect of the multi-stage unloading structure 2 is better, the density of the sound-damping rock wool 242 is 32kg/m ³, a plurality of pores are arranged on the sound-damping rock wool 242, the sound-damping rock wool 242 is through the porous structure characteristics, when vibration sound is transmitted to the sound-damping rock wool 242, part of sound energy is absorbed by fibers due to friction generated by the action of flow resistance, the sound is prevented from being further transmitted, the sound-absorbing and sound-insulating function is good, and the transmission of the vibration in the horizontal direction can be weakened, the thickness of the polyurethane waterproof layer 252 is 20mm, and the polyurethane waterproof layer 252 mainly adopts the cement mortar ratio of 1:2.5 leveling the floating foundation surface layer 23 by cement mortar, and performing waterproof treatment after the floating foundation surface layer 23 is dried, wherein the waterproof treatment is realized by brushing cement-based waterproof paint, and the thickness of the cement-based waterproof paint is 3mm. The vibration isolation and vibration reduction block 241 is made of inorganic high-density glass fiber vibration isolation blocks with the model specification of 49mm and 50mm, and the high-density glass fiber vibration isolation blocks are used as the vibration isolation and vibration reduction blocks 241, have the performances of incombustibility, corrosion resistance, good heat insulation and sound insulation, aging resistance and the like, have long service life, can be the same as a building, and simultaneously have the characteristics of insect prevention, mould prevention, ultraviolet resistance, ozone resistance, high temperature resistance and low temperature resistance and are not influenced by external adverse conditions.

The outer surface of the vibration isolation and vibration reduction block 241 is coated with a layer of high-elasticity film which has the properties of fog resistance and water resistance, the thickness of the high-elasticity film is not obviously different after being compressed for many times in a soaking state, the performance is stable, and the film does not need to be replaced or maintained in a later period in the service period.

The rigid contact between the cooling tower 5 and the roof floor slab 1 can be disconnected by arranging the vibration isolation and vibration reduction blocks 241, the working load range of the vibration isolation and vibration reduction blocks 241 is 0.3-0.6MPa, the dynamic rigidity is 0.05, the natural frequency is less than or equal to 8Hz, the frequency correlation difference between the floor slab structure and damping vibration isolation block plastic is more than or equal to 50 percent (resonance prevention is realized), the permanent deformation after unloading is not more than 5 percent, the compressive strength is more than 15MPa, the yield limit is more than 0.45MPa, and the compressive elastic modulus is more than 7MPa. The main physical properties of the vibration isolation and damping mass 241 are shown in table 1.

TABLE 1 Main physical Properties of vibration isolation Block

According to the utility model, a concrete surrounding edge inverted ridge structure 3 is poured on the periphery of a floating foundation surface layer 23, and the bottom of the concrete surrounding edge inverted ridge structure 3 is fixed with the floating foundation surface layer 23. The concrete surrounding edge inverted ridge structure 3 is C20 concrete with the width of 200mm and the height of 200 mm.

The multistage unloading structure 2 comprises a floating floor 210, wherein the floating floor 210 is arranged above a first layer of vibration isolation structure 24, a concrete surrounding edge inverted ridge structure 3 is poured on the periphery of the floating floor 210, the bottom of the concrete surrounding edge inverted ridge structure 3 is fixed on a floating foundation surface layer 23, the multistage unloading structure 2 comprises a rubber and plastic surrounding edge rubber cushion 26, the rubber and plastic surrounding edge rubber cushion 26 is fixed between the floating floor 210 and the concrete surrounding edge inverted ridge structure 3 so as to seal the periphery of the floating floor 210, and the upper end of the rubber and plastic surrounding edge rubber cushion 26 is filled with silicone sealant 261. In particular, when the floating floor 210 is in contact with the concrete surrounding edge inverted bank structure 3, the isolation rigid connection is realized by using the rubber plastic surrounding edge rubber cushion 26 with the thickness of 20mm, the rubber plastic surrounding edge rubber cushion 26 is laid flatly and clings to the concrete surrounding edge inverted bank structure 3, the laying height of the rubber plastic surrounding edge rubber cushion 26 is 200mm higher than that of the concrete surrounding edge inverted bank structure 3, after the concrete surrounding edge inverted bank structure 3 is constructed, the raised part is cut, then the surface of the concrete surrounding edge inverted bank structure 3 is coated and sealed by using the silicone sealant 261, the rubber plastic surrounding edge rubber cushion 26 is preferably surrounding edge rubber, the surrounding edge rubber is adhered on the inner side surface of the concrete surrounding edge inverted bank structure 3, the top of the surrounding edge rubber is slightly lower than the top of the concrete surrounding edge inverted bank structure 3, the bottom of the surrounding edge rubber is abutted against the floating foundation layer 23, and the vibration transmission of the cooling tower 5 in the horizontal direction can be weakened.

The multistage unloading structure 2 comprises galvanized steel plates 27, wherein the galvanized steel plates 27 are paved above a first layer of vibration isolation structure 24 and below a floating floor 210, the thickness of the galvanized steel plates 27 is not less than 2mm, the galvanized steel plates 27 with the thickness not less than 2mm are paved, the galvanized steel plates 27 are single-piece plates, the galvanized steel plates 27 are fixed by spot welding after being in butt joint, the interval of joint welding points is not more than 30mm, the width of the joint is not more than 3mm, the connection strength between the galvanized steel plates 27 is improved, the joint of the galvanized steel plates 27 is prevented from being deformed under pressure, and the joint of the galvanized steel plates 27 is of a T-shaped structure design, so that the number of the joint is reduced, and the corners of the galvanized steel plates 27 are not easy to sink and deform.

The utility model also lays a waterproof layer 271 above the galvanized steel sheet 27, a drainage ditch is arranged on the cement mortar leveling layer 251, a plurality of drainage pipes 4 are pre-embedded at the bottom of the concrete surrounding edge anti-bank structure 3 at intervals, the interval between two adjacent drainage pipes 4 is 1.5m, the drainage pipes 4 are communicated with the drainage ditch, and the drainage pipes 4 adopt PVC pipes with the diameter of 20 mm.

The utility model is characterized in that a bi-directional reinforcing steel mesh 231 with the diameter of A8mm@150mm is bound in the floating foundation surface layer 23, through holes for the metal sleeve 28 to pass through are sequentially formed in the floating floor 210 and the floating foundation surface layer 23 from top to bottom, a gap is formed between the metal sleeve 28 and the floating floor 210 and the floating foundation surface layer 23 after the metal sleeve 28 passes through the through holes, and silicone glass cement 29 is filled in the gap.

In particular, the utility model installs the steel bracket base 51 under the cooling tower 5, the steel bracket base 51 is arranged on the upper end of the steel structure 21, and the steel bracket base 51 is installed with the spring shock absorber. Noise generated by vibration of the device can be reduced by the spring damper.

The multistage unloading structure 2 of the utility model converts the concentrated load of the cooling tower 5 into the distributed load by utilizing the column pier group formed by the column piers 22, the concentrated load downloaded by each column pier 22 is dispersed through the floating foundation surface layer 23, vibration is eliminated by utilizing the vibration isolation and vibration reduction blocks 241 paved on the floating foundation surface layer 23, and finally the roof floor 1 is loaded in the form of the distributed load so as to achieve the effects of vibration isolation and load reduction, as shown in fig. 6, the arrow direction in the figure represents the stress transmission direction, and the secondary vibration isolation structure formed by the first layer vibration isolation structure 24 and the second vibration isolation structure 25 is combined with the profile steel structure 21 on the column pier 22, so that the vibration resistance of the floating vibration isolation device can be improved, and the good vibration and sound insulation effect can be achieved in the construction engineering application of the building structure.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, but is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the details shown and described.

Claims (10)

1. A float vibration isolation device with multistage uninstallation structure, its characterized in that: the floating vibration isolation device comprises a roof floor and a multistage unloading structure, the multistage unloading structure is arranged above the roof floor, the multistage unloading structure comprises a plurality of groups of steel structures for supporting cooling tower equipment, a plurality of cylindrical piers in equal quantity with the steel structures and a floating foundation layer, each group of steel structures corresponds to one cylindrical pier, the steel structures are arranged above the cylindrical piers, the plurality of cylindrical piers are arranged above the floating foundation layer to form a column pier group, the floating foundation layer is arranged above the roof floor, a first vibration isolation structure and a second vibration isolation structure are respectively arranged above and below the floating foundation layer, the first vibration isolation structure comprises a plurality of vibration isolation vibration blocks, the plurality of vibration isolation vibration blocks are paved above the floating foundation layer at intervals, a gap is formed between the two vibration isolation blocks, noise elimination rock wool is filled in the gap, the second vibration isolation structure comprises a cement mortar leveling layer and an ammonia-poly waterproof layer which are sequentially arranged below the floating foundation layer, and the cement mortar leveling layer is arranged on the ammonia-poly waterproof layer.

2. The floating vibration isolation device with a multistage unloading structure according to claim 1, wherein: the multistage unloading structure comprises a floating floor slab, the floating floor slab is arranged above the first layer of vibration isolation structure, a concrete surrounding edge inverted ridge structure is poured on the periphery of the floating floor slab, and the bottom of the concrete surrounding edge inverted ridge structure is fixed on a floating foundation surface layer.

3. The floating vibration isolation device with a multistage unloading structure according to claim 2, wherein: the multistage unloading structure comprises a rubber and plastic surrounding edge rubber pad, the rubber and plastic surrounding edge rubber pad is fixed between the floating floor slab and the concrete surrounding edge reverse ridge structure so as to seal the periphery of the floating floor slab, and the upper end of the rubber and plastic surrounding edge rubber pad is filled with silicone sealant.

4. The floating vibration isolation device with a multistage unloading structure according to claim 1, wherein: the multistage unloading structure comprises a galvanized steel sheet, and the galvanized steel sheet is paved above the first layer of vibration isolation structure and below the floating floor.

5. The floating vibration isolation device with a multistage unloading structure according to claim 4, wherein: a waterproof layer is paved above the galvanized steel sheet.

6. The floating vibration isolation device with a multistage unloading structure according to claim 2, wherein: be equipped with the escape canal on the cement mortar screed-coat, the bottom of concrete surrounding edge is pre-buried has a plurality of drain pipes, and a plurality of drain pipes are pre-buried in the bottom of concrete surrounding edge is anti-ridge structure with mutual interval, and interval between two adjacent drain pipes is 1.5m, the drain pipe is linked together with the escape canal.

7. The floating vibration isolation device with a multistage unloading structure according to claim 1, wherein: the vibration isolation and vibration reduction block is made of inorganic high-density glass fiber vibration isolation blocks with the model specification of 49mm and 50 mm.

8. The floating vibration isolation device with a multistage unloading structure according to claim 7, wherein: the outer surface of the vibration isolation and vibration reduction block is coated with a layer of high-elasticity film.

9. The floating vibration isolation device with a multistage unloading structure according to claim 1, wherein: and a bidirectional reinforcing steel mesh sheet with the thickness of A8mm@150mm is bound in the floating foundation surface layer.

10. The floating vibration isolation device with a multistage unloading structure according to claim 2, wherein: the floating floor slab and the floating foundation layer are sequentially provided with through holes for the metal sleeve to pass through from top to bottom, a gap is formed between the metal sleeve and the floating floor slab and between the metal sleeve and the floating foundation layer after the metal sleeve passes through the through holes, and silicone glass cement is filled in the gap.