CN214005726U - Vibration reduction and isolation structure of frame type power foundation - Google Patents
Vibration reduction and isolation structure of frame type power foundation Download PDFInfo
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- CN214005726U CN214005726U CN202022934458.8U CN202022934458U CN214005726U CN 214005726 U CN214005726 U CN 214005726U CN 202022934458 U CN202022934458 U CN 202022934458U CN 214005726 U CN214005726 U CN 214005726U
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Abstract
The utility model provides a frame-type power foundation subtracts vibration isolation structure, it includes relative and the basal layer and the floor that the interval set up, and the frame post that is equipped with a plurality of intervals between basal layer and the floor meets, and the frame post includes the body and connects in the elastic concrete layer of the upper end of body, and the lower extreme and the basal layer of body meet, and elastic concrete layer's upper end meets with the floor. The utility model discloses a frame-type power foundation's vibration reduction and isolation structure sets up elastic concrete layer through the upper portion at the frame roof beam, utilizes elastic concrete's elasticity to play the shock attenuation performance, reducible structural component size when satisfying the power requirement to reduce engineering cost, and, compare with the frame construction of installation attenuator, it is simple to have the construction, and the time limit for a project is short, and the advantage of later stage non-maintaining maintenance has reduced engineering cost by a wide margin.
Description
Technical Field
The utility model relates to a building structure engineering technical field, in particular to frame-type power foundation subtract vibration isolation structure.
Background
A frame-type power machine foundation is a common structural form in the industry, and is composed of a foundation, frame columns, frame beams and a floor slab, and is generally a single-layer frame. The frame is formed by pouring common reinforced concrete, and the common floor system and the frame columns are integrally poured. In a large power machine foundation, a damper is sometimes installed at the top end of a frame column, and a floor system is connected with the frame column through the damper.
The power machine has strict requirements on one or more indexes of horizontal displacement, vertical displacement and vibration speed of a foundation, for example, the specification allows the displacement of a vibration line not to exceed 0.02mm for a steam turbine with the working rotating speed of 3000 r/min. To meet the requirements, the natural frequency of vibration of the structure is far from the operating frequency of the equipment, resulting in large cross sections of the frame columns, frame beams and floor slabs. The damper can effectively reduce the adverse effect of the power machine on the structure, but the damper is high in manufacturing cost, needs periodic inspection and maintenance and is difficult to replace once damage occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a frame-type power foundation's that has vibration damping and isolating performance and can reduce the cost vibration damping and isolating structure.
In order to achieve the above object, the utility model provides a frame-type power foundation subtracts vibration isolation structure, its foundation bed and floor that includes relative and interval setting, the floor is located the top of foundation bed, the foundation bed with the frame post that is equipped with a plurality of intervals between the floor and sets up meets, the frame post include the body with connect in the elastic concrete layer of the upper end of body, the lower extreme of body with the foundation bed meets, elastic concrete layer's upper end with the floor meets.
The vibration reducing and isolating structure of the frame type power foundation as described above, wherein the elastic concrete layer has the same sectional shape as the body.
The vibration reducing and isolating structure of the frame type power foundation is characterized in that the body is rectangular in cross section.
The vibration reducing and isolating structure of the frame type power foundation is characterized in that the frame columns are arranged between the foundation layer and the floor slab at equal intervals.
The vibration reducing and isolating structure of the frame type power foundation is characterized in that a plurality of bosses which are respectively in one-to-one correspondence with the frame columns are correspondingly arranged on the bottom surface of the floor slab, and the elastic concrete layer is connected with the bosses.
The vibration reducing and isolating structure of the frame type power foundation as described above, wherein the cross-sectional shape of the boss is the same as the cross-sectional shape of the elastic concrete layer.
The vibration reducing and isolating structure of the frame type power foundation comprises a frame beam, wherein the frame beam is connected between two adjacent bosses.
The vibration reducing and isolating structure of a frame-type power foundation as described above, wherein the width of the frame beam is smaller than the width of the boss.
The vibration reducing and isolating structure of the frame type power foundation as described above, wherein the height of the frame beam is less than or equal to the height of the boss.
The vibration reducing and isolating structure of the frame-type power foundation as described above, wherein the upper end of the frame beam is connected to the floor.
Compared with the prior art, the utility model has the advantages as follows:
the utility model discloses a frame-type power foundation's vibration reduction and isolation structure sets up elastic concrete layer through the upper portion at the frame roof beam, utilizes elastic concrete's elasticity to play the shock attenuation performance, reducible structural component size when satisfying the power requirement to reduce engineering cost, save space simultaneously, the workshop of being convenient for is arranged, and, compare with the frame construction of installation attenuator, have the construction simply, the time limit for a project is short, later stage non-maintaining's advantage has reduced engineering cost by a wide margin.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of a vibration reducing and isolating structure of a frame-type power foundation of the present invention;
FIG. 2 is a perspective schematic view of the vibration reducing and isolating structure of the frame-type power foundation shown in FIG. 1;
fig. 3 is a schematic sectional view taken along line a-a in fig. 1.
The reference numbers illustrate:
100. a base layer;
200. a floor slab; 210. a boss; 220. a frame beam;
300. a frame column; 310. a body; 320. an elastic concrete layer.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "top" and "bottom" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, 2 and 3, the present invention provides a vibration damping and isolating structure of a frame-type power foundation, which comprises a foundation layer 100 and a floor slab 200 that are oppositely arranged at an interval, wherein the foundation layer 100 and the floor slab 200 are both formed by casting reinforced concrete, the foundation layer 100 is substantially parallel to the floor slab 200, the floor slab 200 is located above the foundation layer 100, a plurality of frame columns 300 that are arranged at an interval are arranged between the foundation layer 100 and the floor slab 200 to be connected, each frame column 300 comprises a body 310 and an elastic concrete layer 320 that is connected to the upper end of the body 310, the body 310 is formed by casting concrete steel bars, the elastic concrete layer 320 is formed by casting elastic concrete, during construction, the reinforced concrete is firstly cast to form the body 310, the elastic concrete is cast to form the elastic concrete layer 320 after initial setting, wherein the elastic concrete is a novel material, the strength level of the concrete is C20-C40, the elastic modulus of the concrete meets the structural stress requirement and is only about 0.1 of that of common concrete, the concrete has good elasticity, crack resistance and durability, the lower end of the body 310 is connected with the foundation layer 100, the upper end of the elastic concrete layer 320 is connected with the floor slab 200, and the frame column 300 is supported between the foundation layer 100 and the floor slab 200.
During design, the strength grade and the section size of concrete of the pouring body 310 are preliminarily determined by static calculation, and then the pouring height of the elastic concrete layer 320 and the section size of the optimized frame are determined by dynamic calculation.
The utility model discloses a frame-type power foundation's vibration reduction and isolation structure sets up elastic concrete layer 320 through the upper portion at frame roof beam 220, utilizes elastic concrete's elasticity to play the damping performance, reducible structural component size when satisfying the power requirement to reduce engineering cost, and, compare with the frame construction of installation attenuator, it is simple to have the construction, and the time limit for a project is short, and the advantage of later stage non-maintaining maintenance has reduced engineering cost by a wide margin.
Further, the sectional shape of the elastic concrete layer 320 is the same as that of the body 310, so that the casting operation of the frame post 300 can be completed using one mold.
Still further, the cross-section of the body 310 is rectangular, so as to facilitate the disassembly and assembly of the mold.
Further, the plurality of frame columns 300 are disposed between the foundation layer 100 and the floor slab 200 at equal intervals, that is, the plurality of frame columns 300 are uniformly distributed between the foundation layer 100 and the floor slab 200, so as to ensure the stability of the support of the frame columns 300.
Further, as shown in fig. 3, the bottom surface of the floor slab 200 is correspondingly provided with a plurality of bosses 210 corresponding to the frame columns 300 one to one, the elastic concrete layer 320 is connected with the bosses 210, and the arrangement of the bosses 210 is convenient for positioning the position of the floor slab 200 so as to avoid the floor slab 200 from deviating relative to the foundation.
Further, the cross-sectional shape of the boss 210 is the same as that of the elastic concrete layer 320, so as to ensure that the boss 210 and the elastic concrete layer 320 can be accurately butted.
Further, as shown in fig. 3, a frame beam 220 is connected between two adjacent bosses 210, and the two adjacent bosses 210 are limited by the frame beam 220 to ensure that the relative position between the bosses 210 is unchanged, so as to ensure that the relative position between the frame columns 300 is fixed.
Further, the width of the frame beam 220 is smaller than that of the boss 210, and the structure can play a limiting role and reduce the construction cost.
Further, the height of the frame beam 220 is less than or equal to the height of the boss 210 to prevent the frame beam 220 from affecting the shock-absorbing effect of the elastic concrete layer 320.
Further, the upper end of the frame beam 220 is connected with the floor 200 to improve the stability of the connection of the frame beam 220, thereby ensuring the limiting effect of the frame beam 220.
To sum up, the utility model discloses a frame-type power foundation's vibration reduction and isolation structure sets up elastic concrete layer through the upper portion at the frame roof beam, utilizes elastic concrete's elasticity to play the shock attenuation performance, reducible structural component size when satisfying the power requirement to reduce engineering cost, save space simultaneously, the workshop of being convenient for is arranged, and compare with the frame construction of installation attenuator, have the construction simply, the time limit for a project is short, the advantage of later stage non-maintaining maintenance has reduced engineering cost by a wide margin.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. The utility model provides a frame-type power foundation's vibration reduction and isolation structure, its characterized in that, frame-type power foundation's vibration reduction and isolation structure includes relative and interval foundation layer and the floor that sets up, the floor is located the top of foundation layer, the foundation layer with the frame post that is equipped with a plurality of intervals between the floor and sets up meets, the frame post include the body with connect in the elastic concrete layer of the upper end of body, the lower extreme of body with the foundation layer meets, elastic concrete layer's upper end with the floor meets.
2. A frame-type power foundation vibration damping and isolation structure as claimed in claim 1,
the section shape of the elastic concrete layer is the same as that of the body.
3. A frame-type power foundation vibration damping and isolation structure as claimed in claim 2,
the cross section of the body is rectangular.
4. A frame-type power foundation vibration damping and isolation structure as claimed in claim 1,
a plurality of the frame columns are arranged between the foundation layer and the floor slab at equal intervals.
5. A frame-type power foundation vibration damping and isolation structure as claimed in claim 1,
the bottom surface of the floor slab is correspondingly provided with a plurality of bosses which are respectively in one-to-one correspondence with the frame columns, and the elastic concrete layer is connected with the bosses.
6. A frame-type power foundation vibration reduction and isolation structure as claimed in claim 5,
the cross section of the boss is the same as that of the elastic concrete layer.
7. A frame-type power foundation vibration reduction and isolation structure as claimed in claim 5,
and a frame beam is connected between every two adjacent bosses.
8. A frame-type power foundation vibration damping and isolation structure as claimed in claim 7,
the width of the frame beam is smaller than that of the boss.
9. A frame-type power foundation vibration damping and isolation structure as claimed in claim 7,
the height of the frame beam is smaller than or equal to that of the boss.
10. A frame-type power foundation vibration damping and isolation structure as claimed in claim 7,
the upper end of the frame beam is connected with the floor slab.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022934458.8U CN214005726U (en) | 2020-12-10 | 2020-12-10 | Vibration reduction and isolation structure of frame type power foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022934458.8U CN214005726U (en) | 2020-12-10 | 2020-12-10 | Vibration reduction and isolation structure of frame type power foundation |
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| CN214005726U true CN214005726U (en) | 2021-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502185A (en) * | 2020-12-10 | 2021-03-16 | 中冶京诚工程技术有限公司 | Vibration reduction and isolation structure of frame type power foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502185A (en) * | 2020-12-10 | 2021-03-16 | 中冶京诚工程技术有限公司 | Vibration reduction and isolation structure of frame type power foundation |
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