CN111236297A - Equipment foundation vibration isolation structure and construction method thereof - Google Patents
Equipment foundation vibration isolation structure and construction method thereof Download PDFInfo
- Publication number
- CN111236297A CN111236297A CN202010009931.3A CN202010009931A CN111236297A CN 111236297 A CN111236297 A CN 111236297A CN 202010009931 A CN202010009931 A CN 202010009931A CN 111236297 A CN111236297 A CN 111236297A
- Authority
- CN
- China
- Prior art keywords
- layer
- vibration isolation
- seat
- spring
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
Abstract
The invention relates to an equipment foundation vibration isolation structure and a construction method thereof, relating to the technical field of building construction, wherein the equipment foundation vibration isolation structure comprises a bedding layer which is paved at the bottom of a foundation pit; the mounting seat is arranged at the upper end of the bedding mounting layer; a damping alloy layer is arranged on the side wall of the foundation pit, and the lower end of the damping alloy layer is arranged on the bedding layer; the damping alloy layer surrounds the mounting seat; the mounting seat comprises a bottom plate fixedly mounted on the bedding layer and a vibration isolation seat arranged on the bottom plate; the bottom plate is respectively provided with a transverse vibration isolation spring and a longitudinal vibration isolation spring which face the vibration isolation seat, and the other ends of the transverse vibration isolation spring and the longitudinal vibration isolation spring are respectively fixed with the side wall of the vibration isolation seat; the invention has the effect of effectively isolating the pre-buried large-scale equipment.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an equipment foundation vibration isolation structure and a construction method thereof.
Background
The vibration isolation technology is widely applied to the field of installation and protection of various precision equipment. The application of the vibration isolation and damping technology can reduce the influence of an external vibration source on one hand, and can reduce the abnormal work of the equipment caused by the inertia force and disturbance force generated by eccentric unbalance when the equipment operates.
Chinese patent No. CN205298398U, granted in the prior art, discloses a vibration isolation device for mounting electrical equipment, which includes a floating plate for mounting equipment and a vibration isolator for supporting the floating plate in such a manner that a gap is formed between the floating plate and a building foundation and for isolating vibration; a certain gap is formed between the floating plate and a building foundation (ground or other foundation surfaces) through the vibration isolator, so that the phenomenon that the wall of a room generates vibration noise due to vibration transmission is avoided, and the use comfort of the building is improved; simultaneously, the rubber ring of isolator cooperates through the wedge face with the annular location portion of location body and base between, through the shear deformation of rubber ring, can reduce the influence of the ascending ambient vibration volume in all directions, improves the vibration isolation effect to form a body structure with the vibration isolation and the support to the bearing subassembly, not only simple structure is reliable, convenient to use, and the structure is fairly compact moreover, has significantly reduced the use quantity of connecting piece, and easy equipment is quick detachable, saves installation time.
The above prior art solutions have the following drawbacks: because the base of the vibration isolation device in the patent adopts the construction of floating plate and vibration isolator, the vibration isolation device is suitable for the vibration isolation of small electrical equipment, but for the pre-buried deep large-scale equipment foundation, the construction of the vibration isolation structure is not facilitated and the vibration isolation effect of the vibration isolation structure is not good, so that the applicability of the vibration isolation device is not strong, and the vibration isolation effect of slightly large-scale equipment is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an equipment foundation vibration isolation structure and a construction method thereof, which have the effect of effectively isolating pre-buried large-scale equipment.
One of the above objects of the present invention is to provide an apparatus foundation vibration isolation structure, which is implemented by the following technical solutions:
the bedding layer is paved at the bottom of the foundation pit;
the mounting seat is arranged at the upper end of the bedding mounting layer;
a damping alloy layer is arranged on the side wall of the foundation pit, and the lower end of the damping alloy layer is arranged on the bedding layer; the damping alloy layer surrounds the mounting seat; the mounting seat comprises a bottom plate fixedly mounted on the bedding layer and a vibration isolation seat arranged on the bottom plate; the bottom plate is provided with a transverse vibration isolation spring and a longitudinal vibration isolation spring which face the vibration isolation seat respectively, and the other ends of the transverse vibration isolation spring and the longitudinal vibration isolation spring are fixed with the opposite side walls of the vibration isolation seat respectively.
By adopting the technical scheme, the damping alloy layer is made of foamed aluminum and has the characteristics of small density, high impact absorption capacity, high temperature resistance, high fireproof performance, corrosion resistance, sound insulation, noise reduction and the like; the damping alloy layer surrounding the mounting seat can effectively weaken the adverse effect of vibration on equipment and play a role in vibration isolation protection for the mounting seat; when the vibration wave is transmitted along the vertical direction, the longitudinal vibration isolation spring arranged on the bottom plate can perform longitudinal buffering vibration isolation on the vibration isolation seat; when the vibration wave is transmitted along the horizontal direction, the transverse vibration isolation spring can play a role in transversely buffering and isolating vibration for the vibration isolation seat; under the combined action of the longitudinal vibration isolation spring and the transverse vibration isolation spring, the vibration isolation effect on the vibration isolation seat can be effectively improved when vibration occurs around the foundation pit, secondary vibration isolation protection is performed on the vibration isolation seat, and the vibration isolation seat is kept stable.
The present invention in a preferred example may be further configured to: the bottom plate is provided with a positioning piece facing the vibration isolation seat, and the longitudinal vibration isolation spring is sleeved outside the positioning piece; the vibration isolation seat is provided with a top block opposite to the positioning piece, and the positioning piece and the top block are not contacted with each other; and a rubber pad is arranged on the side wall of the positioning piece opposite to the top block.
By adopting the technical scheme, the positioning piece and the ejector block are not contacted with each other, so that the transmission of vibration waves to the vibration isolation seat can be reduced; when the positioning piece and the top block vibrate up and down, the positioning piece can be prevented from directly contacting with the top block through the rubber pad; and when vibration intensity is great and make the rubber pad take place the compression, the rubber pad can play the effect of shock attenuation buffering, also can help vertical vibration isolation spring to reset fast simultaneously.
The present invention in a preferred example may be further configured to: a damper is arranged on the vibration isolation seat, and the other end of the damper is fixedly connected with the damping alloy layer; the damper is obliquely and downwards obliquely arranged along the direction far away from the vibration isolation seat, and the damper is circumferentially and alternately wound around the vibration isolation seat.
By adopting the technical scheme, when the vibration isolation seat is subjected to vibration waves transmitted from the periphery, the dampers circumferentially surrounding the vibration isolation seat can correspondingly generate reverse motion resistance, so that the transmission of the vibration waves can be weakened, and the energy of the vibration waves can be reduced; therefore, the vibration isolation seat can be kept stable, and the influence of vibration waves on the vibration isolation seat is reduced; the damper is obliquely and downwards inclined along the direction far away from the vibration isolation seat, so that the vibration isolation seat can be supported to a certain extent through the damper, and the upper end of the vibration isolation seat is kept horizontal; the damper plays a role in vibration isolation and shock absorption for the vibration isolation seat again.
The present invention in a preferred example may be further configured to: steel plate layers and rubber layers are sequentially and alternately laid and fixed on the vibration isolation seat, and a horizontal mounting plate is arranged at the top of the vibration isolation seat; the steel plate layer and the rubber layer are provided with through holes which sequentially penetrate through the steel plate layer and the rubber layer; the through hole is formed in the vertical direction and communicates the vibration isolation seat with the mounting plate; an expansion spring penetrates through the through hole, one end of the expansion spring is fixedly connected with the mounting plate, and the other end of the expansion spring is fixedly connected with the vibration isolation seat.
By adopting the technical scheme, the mounting plate is used for mounting and fixing the bottom of large equipment, and the steel plate layer can stably support the mounting plate, so that the supporting strength is ensured; the alternately laid rubber layers can move relative to the mounting plate when being influenced by transverse vibration waves, and the mounting plate can be kept relatively stable due to the large mass of large-scale equipment; the effect of the flexible connection of the rubber layer is realized, and when the rubber layer and the steel plate layer shake, the mounting plate above the rubber layer can still keep a relatively static state, so that the overall stability of the mounting plate can be greatly improved; when the vibration is comparatively violent, slight slope can take place for the mounting panel inevitable, through setting up the expanding spring in the perforation, can be taut to the opposite direction with the mounting panel to make the mounting panel reset rapidly, reduce the slope range of mounting panel, make the mounting panel also can keep relatively stable in the vibration.
The present invention in a preferred example may be further configured to: the expanding spring is that circumference encircles between mounting panel and vibration isolator, steel sheet layer and the outside parcel of rubber layer have the damping pad, the damping pad is including the rubber bubble cotton layer that is located the inlayer to and be located outer shock-absorbing layer.
By adopting the technical scheme, the shock absorption layer is made of the polyurethane rubber, the polyurethane rubber has good buffering and shock absorption performance, 10% -20% of shock energy can be absorbed by the polyurethane rubber at room temperature, and the higher the shock frequency is, the larger the energy absorption is; therefore, the capacity of absorbing vibration energy can be improved along with the rise of the vibration frequency, and the vibration energy absorption device is suitable for vibration environments with different strengths; the rubber foam layer has the advantages of heat resistance, difficulty in falling off and high tensile strength, so that the whole anti-pulling capacity of the vibration damping pad can be guaranteed, the vibration damping pad is not prone to breaking, and the whole service life of the vibration damping pad can be prolonged.
The present invention in a preferred example may be further configured to: the mounting plate is provided with a through vibration damping hole, the edge of the mounting plate gradually extends outwards of the foundation pit and is provided with a support frame, and the other end of the support frame is parallel to the ground outside the foundation pit; and the air spring facing to the ground outside the foundation pit is arranged on the support frame, and the lower end of the air spring is tightly pressed on the ground.
By adopting the technical scheme, when the vibration wave passes through the vibration reduction hole, the propagation path of the wave is changed due to the diffraction effect of the vibration reduction hole, the intensity of the wave is weakened, and thus the vibration reduction hole can effectively weaken the propagation of the vibration wave; the vibration isolation and damping effects are achieved on the mounting plate; when large-scale equipment is installed on the installation plate, the installation plate can be supported through the support frame, so that the pressure applied to the installation plate can be shared, the pressure applied to the vibration isolation seat can be reduced, and the vibration isolation effect is improved; when vibration occurs, the air spring has remarkable advantages over the common spring: the speed is relatively slow, the dynamic force change is not large, and the control is easy, so that the shaking of the support frame under the influence of vibration can be reduced.
The present invention in a preferred example may be further configured to: a yielding groove is formed at the bottom of the air spring, and a vertical compression spring is installed in the yielding groove; the upper end and the lower end of the compression spring are respectively provided with a symmetrical pressing plate, and the pressing plate positioned at the upper end of the compression spring is inserted into the abdicating groove.
By adopting the technical scheme, the compression spring can support the air spring and can also avoid the direct contact between the lower end of the air spring and the ground outside the foundation pit; when the air spring is deformed, the air spring can be buffered under the action of the compression spring, so that the support frame is more stable.
The present invention in a preferred example may be further configured to: the bedding layer sequentially comprises a cobblestone base layer, a sandstone layer, a waterproof layer, a rubber elastic layer and a concrete base layer from bottom to top; a supporting rod is vertically inserted into the concrete base layer, the lower end of the supporting rod is connected with the rubber elastic layer, and the upper end of the supporting rod is fixedly connected with the bottom plate; and a damping ditch is formed between the concrete base layer and the rubber elastic layer.
By adopting the technical scheme, the characteristic that the cobblestone base layer has a larger absorption coefficient to energy than a dense material is utilized, and the primary vibration-proof effect on the bedding layer can be firstly achieved; then the cobblestone base course is tamped through the gravel layer, and the water permeability problem is solved by paving the waterproof layer on the upper ends of the cobblestone base course and the gravel layer due to the water permeability of the cobblestone base course and the gravel layer, so that the waterproof performance can be improved; the rubber elastic layer laid on the waterproof layer can further play a role in vibration isolation for equipment; finally, capping is carried out through the concrete base layer so as to ensure the structural strength of the top; the lower end of the bottom plate is inserted into the corresponding support rod and is screwed and fixed through the bolt, and the mounting position of the bottom plate can be positioned through the support rod, so that the mounting position of the bottom plate is prevented from deviating; when vibration occurs in the foundation pit, the energy of vibration waves can be weakened through the damping trench, so that the integral shock resistance can be further enhanced.
Another object of the present invention is to provide a construction method for the above-mentioned device foundation vibration isolation structure: which comprises the following steps:
s1, forming a foundation pit of the equipment, and paving a cobble base layer in the foundation pit;
s2, paving a sand stone layer on the cobblestone base layer;
s3, paving a waterproof layer on the sand layer;
s4, paving a rubber elastic layer on the waterproof layer;
s5, mounting an inverted steel plate cover on the rubber elastic layer, enabling an opening of the steel plate cover to face the rubber elastic layer, and sealing the inside of the steel plate cover;
s6, pouring a concrete base layer on the rubber elastic layer, and forming a damping ditch at the bottom of the concrete base layer through the steel plate cover;
s7, fixedly mounting a damping alloy layer on the side wall of the foundation pit, and fixing the lower end of the damping alloy layer on a bedding layer;
and S8, arranging a mounting seat at the upper end of the bedding layer, and enabling the damping alloy layer to circumferentially surround the mounting seat.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the damping alloy layer is made of foamed aluminum, has high damping and shock absorption performance and impact energy absorption rate, can effectively absorb the energy of vibration when the ground vibrates, can effectively weaken the adverse effect of the vibration on equipment by the damping alloy layer surrounding the mounting seat, and plays a role in vibration isolation protection for the mounting seat; the longitudinal vibration isolation spring arranged on the bottom plate can play a role in longitudinally buffering and vibrating isolation on the vibration isolation seat; the transverse vibration isolation spring can play a role in transversely buffering and isolating vibration for the vibration isolation seat; under the combined action of the longitudinal vibration isolation spring and the transverse vibration isolation spring, when vibration occurs around the foundation pit, the vibration isolation effect on the vibration isolation seat can be effectively improved, secondary vibration isolation protection is performed on the vibration isolation seat, and the vibration isolation seat is kept stable;
2. the waterproof layer is laid on the upper ends of the gravel layer and the cobblestone base layer, so that the problem of water permeation is solved, and the waterproof performance can be improved; the rubber elastic layer laid on the waterproof layer can further play a role in vibration isolation for equipment; and finally, capping through the concrete base layer to ensure the structural strength of the top.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an exploded view of the invention highlighting the local structure at the longitudinal vibration isolation springs on the base plate;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;
FIG. 5 is an exploded view of the present invention highlighting the local structure at the location of the extension spring on the isolator mount;
FIG. 6 is an exploded view highlighting a portion of the air spring bottom.
Reference numerals: 1. paving a cushion layer; 2. a mounting seat; 3. a damping alloy layer; 4. a base plate; 5. a vibration isolation seat; 6. a lateral vibration isolation spring; 7. a longitudinal vibration isolation spring; 8. a positioning member; 9. a top block; 10. a rubber pad; 11. a damper; 12. a steel plate layer; 13. a rubber layer; 14. mounting a plate; 15. perforating; 16. a tension spring; 17. a vibration damping pad; 18. a rubber foam layer; 19. a shock absorbing layer; 20. a damping hole; 21. a support frame; 22. a yielding groove; 23. a compression spring; 24. pressing a plate; 25. a cobble bed; 26. a sandstone layer; 27. a waterproof layer; 28. a rubber elastic layer; 29. a concrete base layer; 30. a support bar; 31. steel plate covers; 32. an air spring; 33. shock attenuation ditch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the vibration isolation structure for the equipment foundation disclosed by the invention comprises a bedding layer 1 arranged in an equipment foundation pit and an installation seat 2 installed at the upper end of the bedding layer 1. The bedding layer 1 comprises a cobblestone base layer 25, a gravel layer 26, a waterproof layer 27, a rubber elastic layer 28 and a concrete base layer 29 from bottom to top in sequence.
As shown in fig. 1 and 2, when the cobble bed 25 is laid, the specifications of cobbles are laid in a manner that the sizes of the cobbles are sequentially reduced from bottom to top. A plurality of symmetrical support rods 30 are vertically poured in the concrete base layer 29, the upper ends of the support rods 30 penetrate out of the concrete base layer 29, and the lower ends of the support rods 30 are fixedly connected with the rubber elastic layer 28. An inverted hollow steel plate cover 31 is poured between the rubber elastic layer 28 and the concrete base layer 29, and the lower end opening of the steel plate cover 31 faces the rubber elastic layer 28 and is tightly attached to the upper surface of the rubber elastic layer 28. The steel plate covers 31 are uniformly and alternately laid between the rubber elastic layer 28 and the concrete base layer 29, and the bottom of the concrete base layer 29 is provided with damping ditches 33 through the steel plate covers 31. The mounting block 2 is mounted on a concrete base 29 by means of support rods 30.
As shown in fig. 1, the mount 2 includes a base plate 4 at the bottom, and a vibration-isolating mount 5 mounted above the base plate 4. The bottom of the bottom plate 4 is inserted into the corresponding support rod 30 and is fastened by bolts. The damping alloy layer 3 is fixedly installed on the inner side wall of the foundation pit in the vertical direction, and the damping alloy layer 3 surrounds the installation seat 2 in the circumferential direction. The damping alloy layer 3 is made of foamed aluminum and has the characteristics of small density, high impact absorption capacity, high temperature resistance, high fire resistance, corrosion resistance, sound insulation, noise reduction and the like. Because of its high damping and shock-absorbing performance and impact energy absorption rate, it can effectively absorb the energy of vibration when the ground vibrates.
As shown in fig. 3 and 4, the lower end of the vibration isolation seat 5 is sleeved outside the bottom plate 4, a large number of longitudinal vibration isolation springs 7 are fixedly installed on the upper end surface of the bottom plate 4 and are distributed at equal intervals, the longitudinal vibration isolation springs 7 face the bottom of the vibration isolation seat 5, and the upper ends of the longitudinal vibration isolation springs 7 are fixedly connected with the bottom of the vibration isolation seat 5. The vibration isolation seat 5 can be supported through the longitudinal vibration isolation springs 7, the lateral surface of the bottom plate 4 is circumferentially and fixedly provided with the transverse vibration isolation spring 6 facing the vibration isolation seat 5 in a surrounding manner, and the other end of the transverse vibration isolation spring 6 is fixedly connected with the vertical side wall of the vibration isolation seat 5. The upper end face of the bottom plate 4 is fixedly provided with a positioning piece 8 positioned in the longitudinal vibration isolation spring 7, the positioning piece 8 is arranged along the extension direction of the longitudinal vibration isolation spring 7, and the longitudinal vibration isolation spring 7 is sleeved outside the positioning piece 8. The bottom of the vibration isolation seat 5 is fixedly connected with a top block 9 opposite to the positioning piece 8, and the positioning piece 8 and the top block 9 are not contacted with each other. Rubber pads 10 are fixedly connected to the side walls of the positioning piece 8 opposite to the top block 9, and the rubber pads 10 are also oppositely arranged.
As shown in fig. 1 and 3, dampers 11 are fixedly mounted on the outer side wall of the vibration isolation seat 5, and the number of the dampers 11 can be specifically determined according to actual applications, and the number of the dampers 11 in this embodiment is four. The other end of the damper 11 is obliquely and downwardly arranged along the direction far away from the vibration isolation seat 5, and the other end of the damper 11 is fixedly connected with the respective opposite damping alloy layer 3. The steel plate layers 12 and the rubber layers 13 are sequentially and alternately laid and fixed at the upper end of the vibration isolation seat 5, the specific heights of the steel plate layers 12 and the rubber layers 13 can be selected according to the size of actual equipment, and five layers are laid in the embodiment.
As shown in fig. 1 and 5, the steel plate layer 12 and the rubber layer 13 are wrapped with a damping pad 17, and the damping pad 17 includes a rubber foam layer 18 located at an inner layer and a damping layer 19 located at an outer layer. The shock absorption layer 19 is made of polyurethane rubber, the buffering and shock absorption performance of the polyurethane rubber is good, 10% -20% of shock energy can be absorbed by the polyurethane rubber, and the higher the shock frequency is, the larger the energy absorption is. Therefore, the capacity of absorbing vibration energy can be improved along with the increase of the vibration frequency, and the vibration energy absorption device is suitable for vibration environments with different intensities. A horizontal mounting plate 14 is arranged on the top of the vibration isolation seat 5, and the mounting plate 14 is fixedly mounted at the upper end of the steel plate layer 12 on the top. Four through holes 15 which sequentially penetrate through the steel plate layer 12 and the rubber layer 13 are formed in the steel plate layer 12 and the rubber layer 13, the four through holes 15 are arranged in a surrounding mode, and the through holes 15 are formed in the vertical direction. An expansion spring 16 penetrates through the through hole 15, and the expansion spring 16 circumferentially surrounds between the mounting plate 14 and the vibration isolation seat 5. The upper end of the telescopic spring 16 is fixedly connected with the mounting plate 14, and the lower end of the telescopic spring 16 is fixedly connected with the upper end face of the vibration isolation seat 5.
As shown in fig. 1 and 6, a large number of vibration damping holes 20 (see fig. 5) are formed in the mounting plate 14, the vibration damping holes are arranged at intervals and penetrate through the mounting plate, the peripheral edge of the mounting plate 14 gradually extends out of the foundation pit and is formed with a support frame 21, and the support frame 21 penetrating out of the foundation pit is parallel to the ground outside the foundation pit. Four air springs 32 which are circumferentially surrounded are arranged on the supporting frame 21 positioned on the outer side of the foundation pit, and the lower ends of the air springs 32 are tightly pressed on the ground. A circular relief groove 22 is formed at the bottom of the air spring 32, and a vertical compression spring 23 is installed in the relief groove 22. The upper end and the lower end of the compression spring 23 are respectively fixedly provided with a symmetrical pressing plate 24, and the pressing plates 24 are horizontally arranged. A pressing plate 24 at the upper end of the compression spring 23 is inserted into the relief groove 22.
The above specifically describes an apparatus foundation vibration isolation structure of the present invention, and the following describes a construction method thereof:
and S1, forming a foundation pit of the equipment, and paving a cobble base course 25 in the foundation pit.
And S2, laying a sandstone layer 26 on the cobblestone substrate 25.
S3, paving a waterproof layer 27 on the sand layer 26.
S4, laying the rubber elastic layer 28 on the waterproof layer 27.
S5, mounting the inverted steel sheet cover 31 on the rubber elastic layer 28, and sealing the inside of the steel sheet cover 31 by opening the steel sheet cover 31 toward the rubber elastic layer 28.
And S6, pouring the concrete base layer 29 on the rubber elastic layer 28, and forming a damping ditch 33 at the bottom of the concrete base layer 29 through the steel plate cover 31.
S7, fixedly installing the damping alloy layer 3 on the side wall of the foundation pit, and fixing the lower end of the damping alloy layer 3 on the bedding layer 1.
And S8, arranging a mounting seat 2 at the upper end of the bedding layer 1, and enabling the damping alloy layer 3 to circumferentially surround the mounting seat 2.
The implementation principle of the embodiment is as follows: the damping alloy layer 3 is made of foamed aluminum, has high damping and shock absorption performance and impact energy absorption rate, can effectively absorb the energy of vibration when the ground vibrates, and the damping alloy layer 3 surrounding the mounting seat 2 can effectively weaken the adverse effect of the vibration on equipment and play a role of vibration isolation protection for the mounting seat 2. The longitudinal vibration isolation spring 7 arranged on the bottom plate 4 can perform longitudinal buffering vibration isolation on the vibration isolation seat 5; the transverse vibration isolation spring 6 can perform transverse buffering vibration isolation on the vibration isolation seat 5; under the combined action of the longitudinal vibration isolation spring 7 and the transverse vibration isolation spring 6, when vibration occurs around the foundation pit, the vibration isolation effect on the vibration isolation seat 5 can be effectively improved, secondary vibration isolation protection is performed on the vibration isolation seat 5, and the vibration isolation seat 5 is kept stable. The waterproof layer 27 is laid on the gravel layer 26 and the cobblestone base layer 25, so that the problem of water permeability is solved, and the waterproof performance can be improved; the rubber elastic layer 28 laid on the waterproof layer 27 can further play a role in vibration isolation for equipment; finally capping is performed through the concrete base layer 29 to ensure the structural strength of the top.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides an equipment foundation vibration isolation structure, locates in the foundation ditch of equipment, its characterized in that:
the bedding layer (1) is paved at the bottom of the foundation pit;
the mounting seat (2) is arranged at the upper end of the bedding layer (1);
a damping alloy layer (3) is arranged on the side wall of the foundation pit, and the lower end of the damping alloy layer (3) is arranged on the bedding layer (1); the damping alloy layer (3) surrounds the mounting seat (2); the mounting seat (2) comprises a bottom plate (4) fixedly mounted on the bedding layer (1) and a vibration isolation seat (5) arranged on the bottom plate (4); the base plate (4) is provided with a transverse vibration isolation spring (6) and a longitudinal vibration isolation spring (7) which face the vibration isolation seat (5), and the other ends of the transverse vibration isolation spring (6) and the longitudinal vibration isolation spring (7) are fixed with the side wall of the vibration isolation seat (5) which is opposite to the other end.
2. The vibration isolation structure of an equipment foundation according to claim 1, wherein: a positioning piece (8) facing the vibration isolation seat (5) is arranged on the bottom plate (4), and the longitudinal vibration isolation spring (7) is sleeved on the outer side of the positioning piece (8); the vibration isolation seat (5) is provided with a top block (9) opposite to the positioning piece (8), and the positioning piece (8) and the top block (9) are not contacted with each other; and a rubber pad (10) is arranged on the side wall of the positioning piece (8) opposite to the top block (9).
3. The vibration isolating structure for foundation of equipment as set forth in claim 2, wherein: a damper (11) is arranged on the vibration isolation seat (5), and the other end of the damper (11) is fixedly connected with the damping alloy layer (3); the damper (11) is obliquely and downwards obliquely arranged along the direction far away from the vibration isolation seat (5), and the damper (11) circumferentially surrounds the vibration isolation seat (5) at intervals.
4. The vibration isolating structure for foundation of equipment as set forth in claim 3, wherein: steel plate layers (12) and rubber layers (13) are sequentially and alternately laid and fixed on the vibration isolation seat (5), and a horizontal mounting plate (14) is arranged at the top of the vibration isolation seat (5); the steel plate layer (12) and the rubber layer (13) are provided with through holes (15) which sequentially penetrate through the steel plate layer (12) and the rubber layer (13); the through hole (15) is formed in the vertical direction and communicates the vibration isolation seat (5) with the mounting plate (14); an expansion spring (16) penetrates through the through hole (15), one end of the expansion spring (16) is fixedly connected with the mounting plate (14), and the other end of the expansion spring (16) is fixedly connected with the vibration isolation seat (5).
5. The vibration isolation structure of an equipment foundation according to claim 4, wherein: expansion spring (16) are circumference and encircle between mounting panel (14) and vibration isolator (5), steel deck (12) and rubber layer (13) outside parcel have damping pad (17), damping pad (17) are including the cotton layer of rubber bubble (18) that are located the inlayer to and be located outer shock-absorbing layer (19).
6. The vibration isolation structure of an equipment foundation according to claim 5, wherein: a through vibration reduction hole (20) is formed in the mounting plate (14), the edge of the mounting plate (14) gradually extends outwards of the foundation pit and is provided with a support frame (21), and the other end of the support frame (21) is parallel to the ground outside the foundation pit; and an air spring (32) facing the ground outside the foundation pit is arranged on the support frame (21), and the lower end of the air spring (32) is pressed on the ground.
7. The vibration isolation structure of an equipment foundation according to claim 6, wherein: an abdicating groove (22) is formed at the bottom of the air spring (32), and a vertical compression spring (23) is installed in the abdicating groove (22); the upper end and the lower end of the compression spring (23) are respectively provided with a symmetrical pressing plate (24), and the pressing plate (24) positioned at the upper end of the compression spring (23) is inserted into the abdicating groove (22).
8. The vibration isolation structure of an equipment foundation according to claim 1, wherein: the paving layer (1) sequentially comprises a cobblestone base layer (25), a sandstone layer (26), a waterproof layer (27), a rubber elastic layer (28) and a concrete base layer (29) from bottom to top; a supporting rod (30) is vertically inserted into the concrete base layer (29), the lower end of the supporting rod (30) is connected with the rubber elastic layer (28), and the upper end of the supporting rod (30) is fixedly connected with the bottom plate (4); and a damping ditch (33) is formed between the concrete base layer (29) and the rubber elastic layer (28).
9. The construction method of the basic vibration isolation structure of equipment according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1, forming a foundation pit of the equipment, and paving a cobblestone base layer (25) in the foundation pit;
s2, paving a sand stone layer (26) on the cobblestone base layer (25);
s3, paving a waterproof layer (27) on the gravel layer (26);
s4, paving a rubber elastic layer (28) on the waterproof layer (27);
s5, mounting an inverted steel plate cover (31) on the rubber elastic layer (28), enabling the opening of the steel plate cover (31) to face the rubber elastic layer (28), and sealing the inside of the steel plate cover (31);
s6, pouring a concrete base layer (29) on the rubber elastic layer (28), and forming a damping ditch (33) at the bottom of the concrete base layer (29) through the steel plate cover (31);
s7, fixedly mounting a damping alloy layer (3) on the side wall of the foundation pit, and fixing the lower end of the damping alloy layer (3) on the bedding layer (1);
s8, arranging an installation seat (2) at the upper end of the bedding layer (1), and enabling the damping alloy layer (3) to circumferentially surround the installation seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009931.3A CN111236297B (en) | 2020-01-06 | 2020-01-06 | Equipment foundation vibration isolation structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009931.3A CN111236297B (en) | 2020-01-06 | 2020-01-06 | Equipment foundation vibration isolation structure and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111236297A true CN111236297A (en) | 2020-06-05 |
| CN111236297B CN111236297B (en) | 2021-08-03 |
Family
ID=70879927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010009931.3A Active CN111236297B (en) | 2020-01-06 | 2020-01-06 | Equipment foundation vibration isolation structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111236297B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460188A (en) * | 2020-10-27 | 2021-03-09 | 佛山市华道超精科技有限公司 | Base structure for suppressing vibration of high-speed equipment |
| CN112900478A (en) * | 2021-01-25 | 2021-06-04 | 天津建工城市建设发展有限公司 | Damping foundation structure of equipment and construction method thereof |
| CN115434354A (en) * | 2022-03-18 | 2022-12-06 | 水利部交通运输部国家能源局南京水利科学研究院 | In-barrel vibration damping and anti-overturning device for offshore wind power barrel type foundation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006183711A (en) * | 2004-12-27 | 2006-07-13 | Bridgestone Corp | Quake-absorbing apparatus |
| CN105064392A (en) * | 2015-07-24 | 2015-11-18 | 中国十九冶集团有限公司 | Shock absorption foundation structure of device and construction method of shock absorption foundation structure |
| CN205298398U (en) * | 2016-01-21 | 2016-06-08 | 重庆工商职业学院 | A isolation mounting for electric equipment erection |
| CN206888247U (en) * | 2017-06-08 | 2018-01-16 | 徐靖峰 | A kind of multifunctional building shock isolating pedestal |
| CN109898564A (en) * | 2019-04-14 | 2019-06-18 | 山东天智信息科技有限公司 | A kind of building multiple dimension shock-proof device |
| CN110184904A (en) * | 2019-06-24 | 2019-08-30 | 浙江海洋大学 | A kind of novel beam bridge energy-absorbing shock mount |
| CN209653122U (en) * | 2018-11-12 | 2019-11-19 | 江苏省苏中建设集团股份有限公司 | A kind of building facility aseismatic bearing |
-
2020
- 2020-01-06 CN CN202010009931.3A patent/CN111236297B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006183711A (en) * | 2004-12-27 | 2006-07-13 | Bridgestone Corp | Quake-absorbing apparatus |
| CN105064392A (en) * | 2015-07-24 | 2015-11-18 | 中国十九冶集团有限公司 | Shock absorption foundation structure of device and construction method of shock absorption foundation structure |
| CN205298398U (en) * | 2016-01-21 | 2016-06-08 | 重庆工商职业学院 | A isolation mounting for electric equipment erection |
| CN206888247U (en) * | 2017-06-08 | 2018-01-16 | 徐靖峰 | A kind of multifunctional building shock isolating pedestal |
| CN209653122U (en) * | 2018-11-12 | 2019-11-19 | 江苏省苏中建设集团股份有限公司 | A kind of building facility aseismatic bearing |
| CN109898564A (en) * | 2019-04-14 | 2019-06-18 | 山东天智信息科技有限公司 | A kind of building multiple dimension shock-proof device |
| CN110184904A (en) * | 2019-06-24 | 2019-08-30 | 浙江海洋大学 | A kind of novel beam bridge energy-absorbing shock mount |
Non-Patent Citations (1)
| Title |
|---|
| 倪红军等: "《工程材料》", 31 August 2016, 东南大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460188A (en) * | 2020-10-27 | 2021-03-09 | 佛山市华道超精科技有限公司 | Base structure for suppressing vibration of high-speed equipment |
| CN112900478A (en) * | 2021-01-25 | 2021-06-04 | 天津建工城市建设发展有限公司 | Damping foundation structure of equipment and construction method thereof |
| CN115434354A (en) * | 2022-03-18 | 2022-12-06 | 水利部交通运输部国家能源局南京水利科学研究院 | In-barrel vibration damping and anti-overturning device for offshore wind power barrel type foundation |
| CN115434354B (en) * | 2022-03-18 | 2023-04-07 | 水利部交通运输部国家能源局南京水利科学研究院 | In-barrel vibration damping and anti-overturning device for offshore wind power barrel type foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111236297B (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111236297B (en) | Equipment foundation vibration isolation structure and construction method thereof | |
| JP2944217B2 (en) | Vibration suppression coupling device for earthquake resistance of structures | |
| CN111577326B (en) | Anti-seismic structure suitable for tunnel lining of high-intensity seismic area and construction method thereof | |
| EP1319759A1 (en) | Modular anti-seismic protection array that can be used in the preservation of buildings and the like | |
| JP5405940B2 (en) | Soundproof support device for active mass damper | |
| RU2606884C1 (en) | Aseismic building | |
| RU2568192C1 (en) | Earthquake resistance building | |
| CN114319419B (en) | Vibration isolation system of concrete vibration compaction forming machine | |
| CN213062076U (en) | Building engineering foundation earthquake-resistant structure | |
| KR20110128636A (en) | Seismic isolation damping apparatus of bridge | |
| Fujita et al. | Shake table tests on three-dimensional vibration isolation system comprising rubber bearing and coil springs | |
| KR20130012786A (en) | Tuned mass damper using metal plate spring and vibration isolation base using the tuned mass damper | |
| CN211340882U (en) | Building anti-seismic foundation | |
| RU2572863C1 (en) | Kochetov earthquake-proof building structure | |
| RU2013113693A (en) | SEISMIC RESISTANT BUILDING | |
| RU2643225C2 (en) | Vibrizolated foundation of industrial building | |
| JPH0237860Y2 (en) | ||
| CN211815208U (en) | High-damping vibration isolation and noise isolation type floating slab track | |
| JP3849624B2 (en) | Vibration damping device for use in damping type seismic isolation buildings | |
| RU2649698C2 (en) | Industrial aseismic building | |
| SU755957A1 (en) | Vibration isolator of foundation for turbounit | |
| RU2639206C1 (en) | Seismic-resistant building | |
| CN116104201A (en) | Novel house building shock insulation supporting seat | |
| RU2611647C1 (en) | Seismic-resistant low noise building | |
| JP3761042B2 (en) | Vibration damping structure of columnar structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 402, Xingang building, 2079 Huimin Road, Lucheng District, Wenzhou City, Zhejiang Province 325000 Applicant after: SANJIAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. Address before: 325000 room 402, haoxingang building, 2079 Huimin Road, Lucheng District, Wenzhou City, Zhejiang Province Applicant before: SANJIAN CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |