CN210830988U - Building pipeline structure friction tuning damping device - Google Patents
Building pipeline structure friction tuning damping device Download PDFInfo
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- CN210830988U CN210830988U CN201921189821.9U CN201921189821U CN210830988U CN 210830988 U CN210830988 U CN 210830988U CN 201921189821 U CN201921189821 U CN 201921189821U CN 210830988 U CN210830988 U CN 210830988U
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Abstract
The utility model discloses a harmonious damping device of building pipeline structure friction, including pipe-line system, jib, the harmonious mass damper of friction, pipe-line system includes the combination pipe clamp of pipeline and fixed pipeline, and the jib is used for being connected to the building structure component with pipe-line system, and the harmonious mass damper of friction is including fixed stopper, quality piece, spring and guide bar, and the guide bar is respectively through two fixed stopper fixed mounting on the combination pipe clamp, the quality piece passes through the vice installation of sliding friction on the guide bar, is connected with a spring between quality piece both ends and two fixed stoppers respectively. The operating frequency of the friction tuned mass damper is adjusted to the roll frequency of the piping system. The friction tuning mass damper performs pipeline damping through comprehensive energy consumption of sliding friction of the frequency tuning absorption mass block. The utility model discloses simple structure, convenient to use, with low costs, damping effect are showing, can be used to building pipe-line system's antidetonation and anti-wind.
Description
Technical Field
The utility model belongs to the technical field of structure shock attenuation (shake) engineering, a building pipeline structure's shock attenuation technique is related to, especially, relate to a harmonious damping device of building pipeline structure friction.
Background
Ductwork is a common non-structural component of building structures, including electromechanical ducts, ventilation ducts, water supply ducts, etc., and makes a significant contribution to the functional utility of the structure. In earthquakes, the piping is more susceptible to damage than the structural members. The damage not only causes huge direct economic loss, but also causes serious secondary disasters and loss of using functions of the building. How to effectively reduce the structural damage of the pipeline system caused by the earthquake and reduce the loss caused by the disaster becomes one of the key problems of the technical development of the pipeline system.
The tuned mass damper has the advantages of simple structural form, obvious damping effect, easiness in realization and the like, and is widely applied to structural damping control. But the disadvantage is that it absorbs the input energy through mass tuning, but due to its low self-damping, it cannot effectively dissipate the input energy. The friction damper has the characteristics of easiness in adjustment, simple structure and stable energy consumption. The friction energy consumption and the mass tuning are combined to form the friction tuning mass damper which has the characteristics of mass tuning and friction energy consumption. The friction tuned mass damper is small in size, simple in structure and outstanding in energy consumption capacity, and the combined pipe clamp of the building pipeline structure is used as a base of the friction tuned mass damper, so that space can be effectively utilized, and the friction tuned mass damper has great significance to engineering application.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and not enough that prior art exists just, provide a damping device for building pipeline structure. On one hand, the device absorbs structural kinetic energy transmitted to a pipeline system through frequency tuning by a friction tuned mass damper, and plays a role of a traditional tuned mass damper; on the other hand, when relative sliding is generated between the mass block and the guide rod, the friction force is overcome to do work, the input energy is consumed, and the damping of the system is increased; the combined action of the two aspects can effectively restrain the swing of the building pipeline system. The utility model discloses simple structure, convenient to use, with low costs, damping effect are showing, can be used to building pipe-line system's antidetonation and anti-wind.
The purpose of the utility model is realized like this:
the utility model provides a harmonious damping device of building pipeline structure friction which characterized in that: including pipe-line system, jib, the harmonious mass damper of friction, pipe-line system includes the combination pipe clamp of pipeline and fixed pipeline, the jib is used for being connected to building structure component with pipe-line system, the harmonious mass damper of friction includes fixed stopper, quality piece, spring and guide bar, the guide bar is respectively through two fixed stopper fixed mounting on the combination pipe clamp, and guide bar and pipeline length direction perpendicular, the quality piece passes through the vice installation of sliding friction on the guide bar, is connected with a spring between quality piece both ends and two fixed stoppers respectively.
As an improvement, a through hole is formed in the mass block, and the mass block is sleeved on the guide rod through the through hole to form a sliding friction pair.
As an improvement, the fixed limiting block is a solid iron block, the mass block is a cylindrical iron block with a cylindrical through hole inside, and the inner wall of the cylindrical through hole is a friction surface with certain roughness.
As an improvement, the guide rod is a cylinder made of stainless steel, and the outer surface of the guide rod is a friction surface with certain roughness.
As an improvement, when the pipeline system has no vibration, the mass block is positioned in the middle of the guide rod, and the springs at the two ends of the mass block are in a natural balance state.
As an improvement, one or more friction tuned mass dampers are provided on the piping system.
As an improvement, the total mass of the mass blocks of the friction tuned mass damper is 1% -5% of the total mass of the pipeline system, and the mass of the mass block of a single friction tuned mass damper is determined according to the number of the friction tuned mass dampers in the pipeline system.
As an improvement, the operating frequency of the friction tuned mass damper is the same as the roll frequency of the piping system.
As an improvement, the friction tuning shock absorption device for the building pipeline structure can be used for shock absorption of electromechanical pipelines, ventilation pipelines and water supply pipelines.
As an improvement, the combined pipe clamp can be processed by metal profiles.
The combined pipe clamp of the utility model has the function of fixing a plurality of pipelines, and the suspender connects the pipeline system to the building structural member; a fixed limiting block of the friction tuning mass damper is welded on the combined pipe clamp; two ends of the guide rod are fixed on the fixed limiting blocks, and the spring, the mass block and the spring sequentially penetrate through the guide rod; one end of the spring is connected with the mass block, and the other end of the spring is connected with the fixed limiting block; the inner groove surface of the mass block and the outer surface of the guide rod form a sliding friction pair. The operating frequency of the friction tuned mass damper is adjusted to the roll frequency of the piping system. Under earthquake load or wind load, the pipeline system shakes, and the friction tuned mass damper starts to work. On one hand, the friction tuned mass damper absorbs structural kinetic energy transmitted to a pipeline system through frequency tuning, and plays a role of a traditional tuned mass damper; on the other hand, in the sliding process between the mass block and the guide rod, the friction energy consumption is realized, the input kinetic energy is consumed, and the damping of the system is increased; the vibration of the building pipeline system can be effectively inhibited under the combined action of the two aspects.
The utility model has the advantages of it is following and positive effect:
① damper is fixed on the combined pipe clamp of the pipeline system, occupies no extra space, is flexibly adjusted according to the actual engineering requirement, and has strong engineering applicability;
② has wide application range, and can be used in various pipeline systems such as electromechanical pipeline, ventilation pipeline, water supply pipeline, etc.;
③ has simple structure and low cost, and is convenient for engineering popularization and application;
④ damper operating mechanism is simple stable, has the quality tuning simultaneously and rubs the characteristics that power consumption increases the damping, when absorbing energy, dissipates energy, the damper has the wind-resistant, antidetonation to building pipeline is showing the effect.
To sum up, the utility model discloses simple structure, convenient to use, with low costs, damping effect are showing, are applicable to under the multiple environment, various shapes and structure size's building pipe-line system's shock attenuation.
Drawings
Fig. 1 is the utility model discloses building pipeline structure friction tuning damping device overall structure sketch map.
Figure 2 is a schematic diagram of the friction tuned mass damper of the present invention.
Reference numerals: 1-a pipe system, 11-a pipe, 12-a combined pipe clamp, 2-a suspender, 3-a friction tuned mass damper, 31-a fixed stopper, 32-a guide rod, 33-a mass block, 34-a spring, 13-an upper fixed plate, 14-a lower fixed plate, 15-a side plate, 16-a support.
Detailed Description
The following detailed description is made with reference to the accompanying drawings and examples:
as shown in fig. 1 to 2, a friction tuning shock absorption device for a building pipeline structure comprises a pipeline 11, a combined pipe clamp 12, a suspension rod 2, a friction tuning mass damper 3, a fixed stop block 31, a guide rod 32, a mass block 33 and a spring 34, wherein the combined pipe clamp 12 fixes a plurality of pipelines 11 together to form a pipeline system 1, in the embodiment, the combined pipe clamp 12 fixes 3 pipelines together to form the pipeline system 1, the combined pipe clamp 12 comprises an upper fixed plate 13, a lower fixed plate 14, side plates 15 and supporting pieces 16, the upper fixed plate 13 and the lower fixed plate 14 are fixed together by the side plates 15 to form a frame wrapping the pipeline 11, the pipeline 11 is fixed on the frame by the supporting pieces 16 in four directions, namely, up and down, left and right, in the frame, and the lower end of the suspension rod 2 is fixedly connected with the upper fixed plate 13 and.
The combination pipe clamps 12 serve to secure the plurality of pipes 11, and the hanger bar 2 connects the pipe system 1 to the structural building member; two fixed limit blocks 31 of the friction tuned mass damper 3 are welded on the upper fixed plate 13 of the combined pipe clamp 12; two ends of the guide rod 32 are fixed on the fixed limiting block 31, and the spring 34, the mass block 33 and the spring 34 sequentially penetrate through the guide rod 32; one end of the spring 34 is connected with the mass block 33, and the other end is connected with the fixed limiting block 31; the through hole in the mass 33 and the outer surface of the guide rod 32 form a sliding friction pair, and when the mass 33 is at rest, the mass 33 is located at the position right in the middle of the guide rod 32.
As a specific embodiment, the fixed limiting block 31 is a solid iron block, and the mass block 33 is a cylindrical iron block with a cylindrical through hole therein.
The inner hole surface of the mass block 33 and the outer surface of the guide rod 32 form a sliding friction pair, and when the two slide relatively, a certain friction force exists, and energy can be dissipated.
The guide rod 32 is a cylinder made of stainless steel, the outer surface of the guide rod and the inner groove surface of the mass block 33 form a sliding friction pair, and the outer surface of the guide rod 32 and the inner hole surface of the mass block 33 both have certain roughness and are friction surfaces, so that energy can be dissipated conveniently through the friction surfaces.
The total mass of the mass blocks 33 of the friction tuned mass damper 3 is 1% -5% of the total mass of the pipeline system structure, and the mass of the mass block 33 of a single friction tuned mass damper 3 is determined according to the number of dampers in the pipeline system.
The mass 33 of the friction tuned mass damper 3 is not in operation, in the middle position, and the springs 34 on both sides are in a natural equilibrium position. As a specific example, the operating frequency of the friction tuned mass damper 3 is adjusted to the lateral oscillation frequency of the pipe system 1.
It should be noted that the pipeline 11 of the present invention is suitable for pipelines of various materials and shapes such as electromechanical pipelines, ventilation pipelines, water supply pipelines, etc.
It should be noted that the combined pipe clamp 12 of the present invention can be assembled according to the shape, structural size and number of the pipes. The horizontal and vertical components of the combined pipe clamp are C-shaped aluminum alloy with holes, finished products are sold on the market, and the components are connected through bolts and are not limited to the structure in the embodiment.
It should be noted that the utility model discloses jib 2 is threaded metal product, and the upper end is through pre-buried or bolt anchor to structural component, and the lower extreme passes through the bolt to be connected with the combination pipe clamp.
It should be noted that the utility model discloses fixed stopper 31 is solid iron plate, firmly fixes on the combination pipe clamp through the welding.
It should be noted that, the utility model discloses single quality piece 33 is the cylinder iron plate, and its mass determination method is that the total mass of all damper quality pieces is 1% -5% of pipe-line system structure total mass, and the mass of single damper quality piece is confirmed according to the number of damper in the pipe-line system.
It should be noted that the stiffness of the spring 34 of the present invention is calculated to tune the damper operating frequency to the pipe system vibration frequency. And calculating the required stiffness of the spring according to the tuning frequency and the mass of the mass block.
It should be noted that the utility model discloses guide bar 35 is stainless steel's cylinder, and for stainless steel's cylinder, the surface forms sliding friction pair with the interior groove surface of quality piece.
Mechanism of operation
When an earthquake or strong wind acts on the structure, the pipe system 1 vibrates. The friction tuned mass damper 3 mounted on the combination pipe clamp 12 is now in operation. Since the operating frequency of the friction tuned mass damper 3 has been tuned to the vibration frequency of the pipe system 1, the energy input into the pipe system 1 is transferred to the friction tuned mass damper 3. The mass block 33 slides on the guide rod 32, and the sliding between the contact surfaces of the mass block and the guide rod overcomes the friction force to consume energy; the spring acts to store energy and provide a restoring force when the mass is operating. Therefore, on one hand, the friction tuned mass damper absorbs the structural kinetic energy transmitted to the pipeline system through frequency tuning, and plays the function of the traditional tuned mass damper; on the other hand, in the sliding process between the mass block and the guide rod, friction energy consumption is realized, the input kinetic energy is consumed, and the damping of the system is increased; (ii) a The vibration of the building pipeline system can be effectively inhibited under the combined action of the two aspects, and the safety of the pipeline system is improved.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a harmonious damping device of building pipeline structure friction which characterized in that: including pipe-line system, jib, the harmonious mass damper of friction, pipe-line system includes the combination pipe clamp of pipeline and fixed pipeline, the jib is used for being connected to building structure component with pipe-line system, the harmonious mass damper of friction includes fixed stopper, quality piece, spring and guide bar, the guide bar is respectively through two fixed stopper fixed mounting on the combination pipe clamp, and guide bar and pipeline length direction perpendicular, the quality piece passes through the vice installation of sliding friction on the guide bar, is connected with a spring between quality piece both ends and two fixed stoppers respectively.
2. A building plumbing structure friction tuning shock absorbing unit as set forth in claim 1, wherein: the mass block is internally provided with a through hole, and the mass block is sleeved on the guide rod through the through hole to form a sliding friction pair.
3. A building plumbing structure friction tuning shock absorbing unit as claimed in claim 2, wherein: the fixed limiting block is a solid iron block, the mass block is a cylindrical iron block with a cylindrical through hole inside, and the inner wall of the cylindrical through hole is a friction surface with certain roughness.
4. A building plumbing structure friction tuning shock absorbing unit as set forth in claim 3, wherein: the guide rod is a cylinder made of stainless steel, and the outer surface of the guide rod is a friction surface with certain roughness.
5. A building plumbing structure friction tuning shock absorbing unit according to any one of claims 1 to 4, wherein: when the pipeline system does not have vibration, the mass block is positioned in the middle of the guide rod, and the springs at the two ends of the mass block are in a natural balance state.
6. A building plumbing structure friction tuning shock absorbing unit according to any one of claims 1 to 4, wherein: one or more friction tuned mass dampers are provided on the piping system.
7. A building plumbing structure friction tuning shock absorbing unit as set forth in claim 6, wherein: the total mass of the mass blocks of the friction tuned mass damper is 1% -5% of the total mass of the pipeline system, and the mass of the mass block of a single friction tuned mass damper is determined according to the number of the friction tuned mass dampers in the pipeline system.
8. A building plumbing structure friction tuning shock absorbing unit according to any one of claims 1 to 4, wherein: the operating frequency of the friction tuned mass damper is the same as the lateral oscillation frequency of the piping system.
9. A building plumbing structure friction tuning shock absorbing unit according to any one of claims 1 to 4, wherein: the friction tuning damping device for the building pipeline structure can be used for damping electromechanical pipelines, ventilation pipelines and water supply pipelines.
10. A building plumbing structure friction tuning shock absorbing unit according to any one of claims 1 to 4, wherein: the combined pipe clamp can be processed by metal section bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921189821.9U CN210830988U (en) | 2019-07-26 | 2019-07-26 | Building pipeline structure friction tuning damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921189821.9U CN210830988U (en) | 2019-07-26 | 2019-07-26 | Building pipeline structure friction tuning damping device |
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| CN210830988U true CN210830988U (en) | 2020-06-23 |
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| CN201921189821.9U Active CN210830988U (en) | 2019-07-26 | 2019-07-26 | Building pipeline structure friction tuning damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410611A (en) * | 2019-07-26 | 2019-11-05 | 武汉地震工程研究院有限公司 | A kind of building pipe structural friction tuned mass damping device |
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2019
- 2019-07-26 CN CN201921189821.9U patent/CN210830988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410611A (en) * | 2019-07-26 | 2019-11-05 | 武汉地震工程研究院有限公司 | A kind of building pipe structural friction tuned mass damping device |
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