CN210768061U - Vibration damper for tower mast structure - Google Patents
Vibration damper for tower mast structure Download PDFInfo
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- CN210768061U CN210768061U CN201921250311.8U CN201921250311U CN210768061U CN 210768061 U CN210768061 U CN 210768061U CN 201921250311 U CN201921250311 U CN 201921250311U CN 210768061 U CN210768061 U CN 210768061U
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Abstract
The utility model discloses a vibration damper for tower mast structure, outside at tower mast structure with or inside, at the top of tower mast structure or top and platform on installation vibration damper, vibration damper receives external dynamic force effect at tower mast structure and acts on, provides a frequency and is close, with tower mast structure opposite direction of motion's power, or consumes the structural response that vibration energy offsets external excitation and arouse. The utility model has the advantages that for the structure damping of tower mast structure increase difference, reduced wind load, promoted the antenna load of tower mast, improved the application efficiency of tower mast.
Description
Technical Field
The utility model relates to a tower mast load technical field, in particular to a vibration damper for tower mast structure.
Background
The tower mast structure is also called a high-rise structure, has larger structural height and smaller cross section, takes wind load as the main basis of structural design, and is divided into a self-standing tower structure and a stay-supported mast structure according to the structural form.
Along with the requirements of 5G communication and Internet of things construction, the types and the number of communication equipment loaded on the tower mast are more and more. Because of the effect of wind load, the load capacity of a single tower mast is limited, in order to adapt to the types and the quantity of more and more communication equipment, the conventional solution is to increase the number of the tower masts or increase the structural appearance of the single tower mast and the consumption of steel, thereby greatly increasing the investment cost. Reducing wind loads while increasing the load capacity of the tower mast structure is where this application needs significant improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a reduce wind load, the damping device who is used for tower mast structure that promotes tower mast antenna load is provided.
In order to solve the technical problem, the utility model provides a damping device for tower mast structure installs damping device in the outside of tower mast structure and inside, on the top or the top of tower mast structure and platform, damping device receives external dynamic force at the tower mast structure and acts on, provides a frequency and is close, with the power of tower mast structure opposite direction of motion, or consumes the structural response that vibration energy offsets external excitation and arouse.
The vibration reduction device comprises a mass module, a rigidity module and a damping module, or the mass module and the rigidity module, or the mass module and the damping module, wherein the mass module is connected with the outer contact type central symmetry or non-central symmetry of the tower mast structure through the damping module, the mass module is connected with the inner contact type central symmetry or non-central symmetry of the tower mast structure through the rigidity module, the mass module provides reaction force for the tower mast structure when the tower mast structure vibrates under wind load to reduce the vibration of the tower body, and meanwhile, the damping module consumes vibration energy when the tower mast structure vibrates under wind load.
The vibration reduction device comprises a mass module and a damping module, wherein a carrier platform is arranged at the middle upper part of the tower mast structure, the mass module is in contact type centrosymmetric connection or non-centrosymmetric connection with the carrier platform through the damping module, the mass module provides reaction force for the tower mast structure to reduce vibration of the tower body when wind load vibrates through the damping module, and meanwhile, the damping module consumes vibration energy when the wind load vibrates.
The vibration reduction device comprises a mass module and a rigidity module, the mass module is symmetrically connected with the internal structure of the tower mast through the rigidity module, and the mass module provides reaction force for the tower mast structure to reduce vibration of the tower body when wind load vibrates through the rigidity module.
The vibration reduction device comprises a rigidity module and a damping module, the rigidity module is arranged on an inclined supporting part at the upper middle position in the internal structure of the tower mast, and the damping module is arranged on a horizontal supporting part at the upper middle position in the internal structure of the tower mast. The damping module converts kinetic energy generated by fluid motion into heat energy so as to dissipate vibration energy; the rigidity module provides rigidity when the small vibration reduces the tower body displacement, takes place plastic deformation and consumes the vibration energy when great vibration.
The vibration reduction device comprises a damping module, a tower mast assembly is arranged at the middle upper part outside the tower body, and the damping module is arranged on a connecting piece between the tower mast assembly and the tower body. The damping module consumes the vibration energy when the tower body vibrates under the wind load and reduces the tower body vibration.
The damping device comprises a rigidity module, and an inclined supporting part or a horizontal supporting part in the tower body adopts the rigidity module. The rigidity module provides rigidity when the small vibration reduces the tower body displacement, takes place plastic deformation and consumes the vibration energy when great vibration.
The utility model has the advantages that:
1) the utility model is provided with different vibration dampers as required, which increases different structural damping for the tower mast structure, reduces wind load, improves the antenna load of the tower mast, and improves the application efficiency of the tower mast;
2) the damping device of the utility model is safe, reliable, low in cost, fast, convenient and easy to popularize;
3) the utility model discloses reduce the input that has capital in the country, reduce the input of homeland resource.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 1 (b) is a schematic view taken along line 1-1 of FIG. 1;
FIG. 1 (c) is a schematic view from 2 to 2 of FIG. 1;
fig. 2 (a) is a schematic structural diagram of a second embodiment of the present invention;
FIG. 2 (b) is a schematic view of FIG. 2 (a) taken along line 1-1;
fig. 3 (a) is a schematic structural diagram of a third embodiment of the present invention;
FIG. 3 (b) is a schematic view of FIG. 3 (a) taken along line 1-1;
fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sixth embodiment of the present invention;
fig. 7 (a) is a schematic structural diagram of a seventh embodiment of the present invention;
FIG. 7 (b) is a schematic view of FIG. 7 (a) taken along line 1-1;
description of the figures
1-tower mast;
102-a circular ring-shaped mass block; 103-steel wire rope;
104-viscous damper;
202-tower mast platform; 203-mass block;
204-viscoelastic damper;
302-mass block; 303-a spring;
402-tower mast connection members; 403-viscous damper;
404, energy dissipation support;
502-damper; 503-tower mast assembly;
6021-energy consumption horizontal support; 6022- -energy dissipating diagonal bracing;
703-mass block a; 704-M viscoelastic damper;
705-mass B; 706-N viscoelastic damper;
707-tower mast platform.
Detailed Description
The communication iron tower comprises a tower body, a platform, a lightning rod, a ladder stand, an antenna support and other steel components, is subjected to hot galvanizing and anti-corrosion treatment, and is mainly used for transmission and emission of microwave, ultrashort wave and wireless network signals. The radio tower mast structure of various wave bands can be divided into two categories of support and emitter from the function. The support is used to suspend the antenna web and the radiator uses the tower structure itself as an antenna to radiate radio waves.
The types of the tower mast type steel materials are generally classified into the following types:
1) an angle steel tower:
the main material and the web members are mainly iron towers made of angle steel. According to the section variables, there are triangular, rectangular, pentagonal, hexagonal and octagonal towers. The communication is most commonly performed by a quadrangular tower and a triangular tower;
2) single-tube column (also known as single-tube column):
the whole tower body is a cantilever type structure made of a single large-diameter steel pipe;
3) a multi-tube tower:
the main material is steel pipe, the inclined material is steel tower made of angle steel or steel pipe, and the like, and the three-pipe tower and the four-pipe tower are most used for communication according to the classification of the section shape;
4) mast or guyed tower:
the high-rise steel structure is composed of a central upright post and a fiber rope or a guy cable.
The following describes in detail an embodiment of the present invention applied to a communication tower with reference to the accompanying drawings.
Fig. 1-1 (c) show a schematic structural diagram of a first embodiment of the present invention. As shown in fig. 1-1 (c), the present invention provides a damping device for a tower mast structure, which comprises a circular ring-shaped mass block 102, a steel wire rope 103 and a viscous damper 104, wherein the circular ring-shaped mass block 102 is disposed outside the single-pipe tower. The circular ring-shaped mass block 102 is connected to the tower mast 1 through a steel wire rope 103, a viscous damper 104 is arranged between the tower mast 1 and the circular ring-shaped mass block 102, the steel wire rope 103 and the viscous damper 104 are symmetrically arranged, and the number of the steel wire ropes is 4 in the embodiment. When the tower mast 1 vibrates under wind load, the circular ring-shaped mass block 102 provides a reverse acting force for the tower mast 1 through the steel wire rope 103 to reduce tower body vibration, and meanwhile, the viscous damper 104 dissipates vibration energy under vibration.
Fig. 2 (a) -2 (b) show the schematic structural diagram of the second embodiment of the present invention. As shown in fig. 2 (a) -2 (b), using the single-pipe tower as an embodiment, the utility model provides a damping device for tower mast structure, tower mast structure cross sectional shape is circular, is the cross-section with central symmetry, the damping device includes quality piece 203 and viscoelastic damper 204, and a tower mast platform 202 has been arranged on upper portion in tower mast 1, and six quality pieces 203 arrange around tower mast platform 202 with central symmetry, and quality piece 203 is connected with tower mast platform 202 through viscoelastic damper 204. When the tower mast 1 vibrates under wind load, the mass block 203 provides a reverse acting force for the tower mast 1 through the viscoelastic damper 204 to reduce tower body vibration, and meanwhile, the viscoelastic damper 204 generates plastic deformation to dissipate vibration energy under vibration. The plane structure of the tower mast structure is centrosymmetric, and the vibration characteristics in all directions are the same, so that the vibration damper is also arranged in a centrosymmetric mode.
Fig. 7 (a) -7 (b) show the structure diagram of embodiment seven of the present invention. As shown in fig. 7 (a) -7 (B), a single-pipe tower is used as an embodiment, the utility model provides a vibration damping device for tower mast structure, the cross-sectional shape of tower mast structure is rectangle, the cross-section of non-central symmetry, the vibration damping device includes mass blocks a703, B705 and viscoelastic dampers M704, N706, a tower mast platform 707 is arranged on the upper middle part of tower mast 1, six mass blocks are arranged on tower mast platform 707 in non-central symmetry, wherein two mass blocks a703 are longitudinally arranged on the upper and lower sides of tower mast platform 707, four mass blocks B705 are transversely arranged on the left and right sides of tower mast platform 707, and mass blocks a703, B705 are connected with tower mast platform 707 through viscoelastic dampers M704, N706. When the tower mast 1 vibrates under wind load, the mass blocks A703 and B705 provide reverse acting force for the tower mast 1 through the viscoelastic dampers M704 and N706 to reduce tower body vibration, and meanwhile, the viscoelastic dampers M704 and N706 are subjected to plastic deformation to dissipate vibration energy under vibration. The plane structure of the tower mast structure is rectangular and is non-centrosymmetric, and the vibration characteristics in all directions are different, so that the vibration damper is arranged in a non-centrosymmetric mode, such as longitudinal arrangement and transverse arrangement.
Fig. 3 (a) -3 (b) show schematic structural diagrams of a third embodiment of the present invention. As shown in fig. 3 (a) -3 (b), the present invention provides a damping device for a tower mast structure, the damping device includes a mass 302 and a spring 303, the mass 302 is disposed inside the tower mast 1, and the mass 302 is connected to the tower mast 1 through four springs 303 symmetrically disposed. When the tower mast 1 vibrates under wind load, the mass 302 provides a counter force to the tower mast 1 via the spring 303 to reduce tower body vibration.
The mass module is divided into a solid module and a liquid module, the solid is divided into steel, concrete or other solid materials, and the liquid is water or other flowing liquid.
Above the utility model discloses an in the embodiment all there is the quality module. When no mass module exists, the rigidity module or the damping module or the rigidity module and the damping module are connected with different components of the tower mast at the inner part and the outer part of the tower mast structure together, provide rigidity or enter an energy consumption state under the action of horizontal load, and absorb earthquake energy, so that the structural vibration is reduced, and the effect of improving the load capacity is achieved. Embodiments of the mass-free module are described in detail below with reference to the figures.
Fig. 4 shows a schematic structural diagram of a fourth embodiment of the present invention. As shown in FIG. 4, in the embodiment of the multi-tube tower, the tower tubes are connected with each other by steel supports. The utility model provides a vibration damper for tower mast structure, vibration damper includes that the power consumption supports 404 and viscous damper 403, and the oblique steel brace replacement of part is supported 404 for the power consumption in the middle upper portion of tower mast 1 inner structure, and the horizontal steel brace replacement of part is for viscous damper 403. When the tower mast 1 vibrates under wind load, the viscous damper 403 converts kinetic energy generated by fluid movement into heat energy, thereby dissipating the vibration energy; the dissipative support 404 provides stiffness to reduce tower displacement at small vibrations and plastic deformation to dissipate vibration energy at larger vibrations.
Fig. 5 shows a schematic structural diagram of embodiment five of the present invention. As shown in FIG. 5, the single-pipe tower is used as an embodiment, the utility model provides a vibration damping device for tower mast structure, the vibration damping device includes a damper 502, and the middle-upper part of the external structure of the tower mast 1 is provided with a tower mast component 503, and the damper 502 is used for connecting the tower mast component 503 and the main body of the tower mast 1. When the tower mast 1 vibrates under wind load, the damper 502 dissipates the vibration energy to reduce tower vibration.
Fig. 6 shows a schematic structural diagram of a sixth embodiment of the present invention. As shown in fig. 6, the single-tube tower is used as an embodiment, the utility model provides a vibration damper for tower mast structure, the vibration damper includes the energy dissipation support, and the steel support part of the internal structure of tower mast 1 adopts the energy dissipation support, and the energy dissipation support is divided into two arrangement modes of oblique energy dissipation support 6022 and horizontal energy dissipation support 6021. When the tower mast 1 vibrates under wind load, the inclined energy consumption support 6022 and the horizontal energy consumption support 6021 are arranged inside the tower mast 1, provide rigidity to reduce tower body displacement during small vibration, and generate plastic deformation to consume vibration energy during large vibration.
The viscous damper in the above embodiments is a rod-type damper, or a damping box.
The vibration damping device has good vibration damping effect in the communication iron tower, and the optimal arrangement position and parameters need to be selected through arrangement:
1) the arrangement position of the vertical surface:
the vibration mode of the communication iron tower under wind load is mainly first-order vibration. The damping device is arranged on the top of the tower, and the effect is best. The arrangement space of the tower top is generally smaller and the construction difficulty is larger, and the tower top and the tower mast platform are arranged at the same time;
2) the plane arrangement position:
the plane structure of the communication iron tower is generally centrosymmetric, and the vibration characteristics in all directions are the same, so the plane arrangement of the vibration damper adopts centrosymmetric arrangement. Due to the special load, the plane structure of the communication iron tower is a non-centrosymmetric structure, and the plane arrangement of the vibration damper is in non-centrosymmetric arrangement. In addition, the mode of arranging in the tower, arranging outside the tower or simultaneously arranging outside the tower in the tower is adopted according to the difference of the space size of the tower body.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A vibration damping device for a tower mast structure, comprising: and the vibration damping device is arranged outside and/or inside the tower mast structure, on the top of the tower mast structure or on the top of the tower mast structure and the platform, and provides a force with a frequency close to that of the tower mast structure in the opposite direction to the moving direction of the tower mast structure when the tower mast structure is subjected to an external dynamic force, or consumes vibration energy to counteract the structural response caused by external excitation.
2. The vibration damping apparatus for a tower mast structure of claim 1, wherein: the vibration reduction device comprises a mass module, a rigidity module and a damping module, or the mass module and the rigidity module, or the mass module and the damping module, wherein the mass module is connected with the external contact type central symmetry or non-central symmetry of the tower mast structure through the damping module, the mass module is connected with the internal contact type central symmetry or non-central symmetry of the tower mast structure through the rigidity module, the mass module provides a reaction force, and the damping module consumes vibration energy.
3. The vibration damping apparatus for a tower mast structure of claim 1, wherein: the vibration damping device comprises a rigidity module and a damping module, the vibration damping device is arranged on an inclined supporting part or a horizontal supporting part at the upper position in the internal structure of the tower mast, and the rigidity module and/or the damping module consume vibration energy.
4. The vibration damping apparatus for a tower mast structure of claim 1, wherein: the vibration damping device comprises a rigidity module, the vibration damping device is arranged on an inclined supporting part or a horizontal supporting part at the upper position in the internal structure of the tower mast, and the rigidity module consumes vibration energy.
5. The vibration damping apparatus for a tower mast structure of claim 1, wherein: the vibration reduction device comprises a damping module, the damping module is arranged on a connecting piece between the tower mast assembly and the tower body, and the connecting piece is arranged at the upper position in the outer structure of the tower mast, and the damping module consumes vibration energy.
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| CN201921250311.8U CN210768061U (en) | 2019-08-05 | 2019-08-05 | Vibration damper for tower mast structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605774A (en) * | 2021-10-11 | 2021-11-05 | 江苏玖泰电力实业有限公司 | Line lateral wind power component for reducing linear rod under extreme strong wind |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605774A (en) * | 2021-10-11 | 2021-11-05 | 江苏玖泰电力实业有限公司 | Line lateral wind power component for reducing linear rod under extreme strong wind |
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Address after: 214104 Room 308, block C, Xidong chuangrong building, No. 88, Danshan Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Jiangu earthquake reduction and Isolation Technology Co.,Ltd. Patentee after: Anhui Jiangu earthquake reduction and Isolation Technology Co., Ltd Address before: Room 1202t, No. 100, Guokang Road, Yangpu District, Shanghai 200092 Patentee before: SHANGHAI JIANGU DAMPING TECHNOLOGY CO.,LTD. Patentee before: Anhui Jiangu earthquake reduction and Isolation Technology Co., Ltd |