CN106930590B - Novel space grid structure ball joint device with damping function - Google Patents
Novel space grid structure ball joint device with damping function Download PDFInfo
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- CN106930590B CN106930590B CN201610839273.4A CN201610839273A CN106930590B CN 106930590 B CN106930590 B CN 106930590B CN 201610839273 A CN201610839273 A CN 201610839273A CN 106930590 B CN106930590 B CN 106930590B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a novel space grid structure ball joint device with a damping function, which comprises a joint ball, a rod piece connected with the joint ball and a damper positioned in the joint ball, wherein the damper comprises an oil cylinder, an oil cylinder top cover, mild steel connected with the oil cylinder top cover, a piston and a piston rod, the other end of the mild steel is connected with the piston, one end of the piston rod is connected with the piston, the other end of the piston rod is connected with the rod piece, the mild steel and the piston are arranged in the oil cylinder, and the lower end of the oil cylinder is connected with a mounting hole in the joint ball. According to the invention, the problem of insufficient damping of the space grid structure is solved according to the characteristic that available space exists inside the hollow steel ball node used in the space grid structure, and the construction and installation are simple and convenient. The invention reduces the earthquake action by increasing the damping energy consumption of the space structure, thereby improving the earthquake resistance of the space structure.
Description
Technical Field
The invention relates to a space grid structure, in particular to a novel ball joint device with a damping function and with the space grid structure.
Background
Between the two major seismic zones in china, the eurasia seismic zone and the pacific seismic zone, is one of the most serious countries in the world suffering from seismic hazards. Historically, strong earthquakes above grade 6 have occurred many times in Yangtze delta and Zhujiang delta, and in the Bohai area of Kyoto ring, approximately 300 years, a major earthquake above grade 7 occurs on average every 44 years. With the acceleration of the urbanization process, a large amount of national wealth is rapidly concentrated into cities and city cluster areas. More than one third of established or proposed urban groups in China are located in areas where big earthquakes of more than 7 levels are likely to occur. The earthquake is that when the stratum of the earth crust is in a complex stress state and the action of the earth stress exceeds the ultimate strength of the stratum at a certain position along with the continuous change of the earth crust, the stratum can be suddenly broken and dislocated, so that the earthquake is caused, and is transmitted to the earth surface in the form of elastic waves, so that an object with certain mass near the earth surface generates inertia force, and when the self seismic capacity of the object for resisting the inertia action is insufficient, the object is damaged. When the excellent period of the local vibration is closer to the natural vibration period of the object, the damage of the object is more serious. The natural vibration period of the object can be obviously changed by arranging a certain vibration isolation device on the object, so that the excellent period of the earthquake is avoided, the inertia force acting on the object is obviously reduced, the damage of the object under the action of the earthquake is reduced, and the safety of the object under the earthquake is improved.
The traditional seismic isolation and reduction technology generally falls into two categories: one is that the self-vibration period of the structure is prolonged by arranging a vibration isolation device, and the seismic reaction of the upper structure is reduced; the other type is that an energy consumption device is arranged at the joint of the structure and the foundation, so that the energy input of the earthquake to the structure is consumed, the earthquake energy input into the structure is reduced, and the damage of the earthquake action is reduced. At present, the two seismic isolation and reduction technologies are better applied. For a space structure, due to the complex acceptance mechanism, the participation degree in three orthogonal directions in the earthquake process cannot be ignored, so that the application of shock insulation is very difficult. However, the energy consumption capacity of the space structure can be improved by increasing the damping of the space structure, so that the shock resistance of the space structure is increased.
Disclosure of Invention
In order to solve the problems in the prior art, the invention develops a device which is simple to install and can increase the energy consumption capability of a space structure by increasing the damping of the connecting node of a rod piece and a hollow steel ball. The method is realized by the following technical scheme:
the utility model provides a novel space grid structure ball node device with damping function, includes node ball and the member that links to each other rather than, the device is still including being located attenuator in the node ball, this attenuator include hydro-cylinder, hydro-cylinder top cap, the mild steel of being connected with the hydro-cylinder top cap, piston and piston rod, the other end of mild steel is connected the piston, the one end of piston rod is connected the piston, the other end is connected the member, mild steel and piston are arranged in the hydro-cylinder, just the lower extreme of hydro-cylinder with mounting hole on the node ball links to each other.
Preferably, the piston is provided with a small hole, and when the piston moves, the viscous damping fluid can pass through the small hole.
Preferably, the lower end of the oil cylinder is in threaded connection with the mounting hole in the node ball.
Preferably, the piston rod is in threaded connection with the rod.
Preferably, the node ball is connected with more than two rods, and each rod is connected with the damper.
The internal force of the rod piece is born by the mild steel in the non-earthquake state and is in a balanced state; under the action of a three-dimensional earthquake, the structure deforms, the stress of the rod piece changes in vibration, the mild steel compresses, pulls and presses to deform in a reciprocating mode, the oil cylinder piston moves, viscous oil passes through the small hole in the piston to generate a damping effect, and the deformation of the mild steel also has the damping effect. Therefore, the overall damping of the structure is increased, the dynamic response of the structure is reduced, and the shock resistance of the structure is improved.
Compared with the prior art, the invention adopting the technical scheme has the advantages that: utilize this actual current situation of clean shot node that has among the spatial structure, rational utilization ball node inner space at its internally mounted attenuator, the mild steel is as normal during operation transmission internal force and uses, and the attenuator only plays a role when the structure takes place to vibrate. The damper can be assembled on site after being processed in a factory in construction, the damper is arranged inside the ball, construction is simple, convenient, tidy and attractive, and the damper can be in other various forms including viscous dampers, metal dampers and the like.
Drawings
FIG. 1 is an isometric view of the present invention in its entirety;
FIG. 2 is a drawing of the cylinder piston and mild steel assembly;
the notation in the figure is: 1, 2-bar; 20-a damper; 21-a piston rod; 22-cylinder piston; 24-mild steel; 26-oil cylinder; 28-cylinder top cover; 29-aperture; 30-node sphere.
Detailed Description
The ball joint device with a novel space lattice structure and a damping function according to the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an exploded schematic view of a novel ball joint device with a spatial grid structure and a damping function according to an embodiment includes a hollow steel ball 30, two rod members 1,2, and a damper 20 connected to the rod members 1,2, respectively, the damper includes an oil cylinder 26, an oil cylinder top cover 28, a soft steel 24 connected to the oil cylinder top cover, a piston 22, and a piston rod 21, the other end of the soft steel 24 is connected to the piston 22, one end of the piston rod 21 is connected to the piston 22, the other end is connected to the rod members 1,2, the soft steel 24 and the piston 22 are disposed in the oil cylinder 26, and the lower end of the oil cylinder is connected to a mounting hole on the joint ball. Thus, the internal rod force is transferred first to the cylinder piston 22, second to the mild steel 24, then to the cylinder 26 and then to the steel ball 30.
In this embodiment, the lower end of the oil cylinder is in threaded connection with the mounting hole in the node ball; the piston rod is in threaded connection with the rod piece.
In one embodiment, the piston 22 is provided with an orifice 29 (shown in FIG. 2) through which viscous damping fluid may pass as the piston moves.
The soft steel is deformed by the internal force of the rod piece in a non-earthquake state; under the action of a three-dimensional earthquake, the structure deforms, the stress of the rod piece changes in vibration, the mild steel 24 compresses, pulls and presses to deform in a reciprocating mode, the oil cylinder piston 22 moves, viscous oil passes through small holes in the piston to generate a damping effect, and the deformation of the mild steel also has the damping effect. Therefore, the overall damping of the structure is increased, the dynamic response of the structure is reduced, and the shock resistance of the structure is improved. In addition, the positions and the number of the rods are certain, but the positions and the number of the dampers can be flexibly arranged according to requirements, and the number of the rods is not necessarily equal to the number of the dampers. Furthermore, fig. 1 is an expression that only two rods are shown, but other numbers of rods may be arranged according to the actual situation.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a novel space grid structure ball node device with damping function, includes node ball and the member that links to each other rather than, its characterized in that the device is still including being located attenuator in the node ball, this attenuator include hydro-cylinder, hydro-cylinder top cap, the mild steel of being connected with the hydro-cylinder top cap, piston and piston rod, the other end of mild steel is connected the piston, the one end of piston rod is connected the piston, the other end is connected the member, mild steel and piston are arranged in the hydro-cylinder, just the lower extreme of hydro-cylinder with mounting hole on the node ball links to each other.
2. The novel ball joint device with space lattice structure having damping function as claimed in claim 1, wherein said piston is provided with small holes through which viscous damping fluid can pass when the piston is moved.
3. The novel ball joint device with a spatial grid structure and a damping function as claimed in claim 1, wherein the lower end of the oil cylinder is in threaded connection with a mounting hole on the joint ball.
4. The novel spatial lattice structured ball joint device with damping function as claimed in claim 1, wherein the piston rod is screw-coupled with the rod member.
5. The novel spatial lattice structure ball joint device with damping function as claimed in claim 1, wherein the joint ball is connected with two or more rod members, and each rod member is connected with the damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610839273.4A CN106930590B (en) | 2016-09-21 | 2016-09-21 | Novel space grid structure ball joint device with damping function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610839273.4A CN106930590B (en) | 2016-09-21 | 2016-09-21 | Novel space grid structure ball joint device with damping function |
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| CN106930590A CN106930590A (en) | 2017-07-07 |
| CN106930590B true CN106930590B (en) | 2023-03-10 |
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| CN201610839273.4A Active CN106930590B (en) | 2016-09-21 | 2016-09-21 | Novel space grid structure ball joint device with damping function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914610B (en) * | 2019-03-20 | 2020-05-19 | 西安建筑科技大学 | Implementation system and method for improving continuous collapse resistance of space grid structure |
| CN110905075B (en) * | 2019-11-22 | 2021-01-26 | 江苏中森建筑设计有限公司 | Prestressed space grid structure |
| CN111287318A (en) * | 2020-03-27 | 2020-06-16 | 山东建筑大学 | Spatial grid structure stud bolt connection node and construction method thereof |
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| DE19602107A1 (en) * | 1996-01-22 | 1997-07-24 | Philip Rex Cullen | Joints and bars system for spatial supporting frameworks, especially geodetic structures |
| JPH11200662A (en) * | 1998-01-14 | 1999-07-27 | Shimizu Corp | Vibration control structure |
| CN2514052Y (en) * | 2001-12-03 | 2002-10-02 | 同济大学 | Combined vibration-proof energy dissipation support |
| JP4552129B2 (en) * | 2005-02-01 | 2010-09-29 | 清水建設株式会社 | Tense grid structure |
| JP2007056552A (en) * | 2005-08-25 | 2007-03-08 | Seiji Kawaguchi | Aseismatic building |
| CN101864805B (en) * | 2010-04-26 | 2011-07-27 | 河南奥斯派克科技有限公司 | Steel dam space truss structure unit body and arch-style steel dam |
| JP5757197B2 (en) * | 2011-08-24 | 2015-07-29 | 清水建設株式会社 | Damping structure |
| CN202324184U (en) * | 2011-10-13 | 2012-07-11 | 中国民航大学 | Steel-wood composite structure Schwedler type single-layer spherical reticulated shell |
| CN102797372B (en) * | 2012-07-16 | 2015-09-02 | 孙经尧 | A kind of method guaranteeing nuclear power plant's safe operation when being caused tsunami by special violent earthquake |
| JP5651198B2 (en) * | 2013-01-09 | 2015-01-07 | 有限会社ユニテック | Beam support structure of building |
| CN103114670B (en) * | 2013-02-25 | 2014-11-19 | 中国民航大学 | Single and double-layer spherical reticulated shell with piezoelectric ceramic bar structure and bar internal force monitoring device |
| CN103147532A (en) * | 2013-03-21 | 2013-06-12 | 东南大学 | Double-layer dome structure of space made of bamboo |
| CN204139363U (en) * | 2014-09-18 | 2015-02-04 | 中国地震局工程力学研究所 | A kind of guide rail disc spring top ball pivot three-dimensional shock isolation pedestal |
| CN204140765U (en) * | 2014-09-18 | 2015-02-04 | 中国地震局工程力学研究所 | Laminated rubber guide rod three-dimensional shock isolation pedestal |
| CN105297918A (en) * | 2015-10-19 | 2016-02-03 | 中铁第四勘察设计院集团有限公司 | Pillar top node of steel grid plant |
| CN206053492U (en) * | 2016-09-21 | 2017-03-29 | 中国地震局工程力学研究所 | New spatial network ball node device with damping function |
| CN106760858B (en) * | 2017-02-21 | 2018-12-25 | 安徽工业大学 | Three-dimensional spring damping shock mitigation system suitable for large span spatial structure |
| CN110468970B (en) * | 2019-07-16 | 2021-02-26 | 北京工业大学 | Large-span assembly type cross universal energy consumption connecting node |
| CN110593428B (en) * | 2019-08-16 | 2020-11-03 | 黑龙江省地震办公室 | Universal-multistage energy-consumption beam-column joint sealing damper and mounting method |
| CN112663793B (en) * | 2020-12-14 | 2022-01-11 | 重庆工程职业技术学院 | High-stability prestressed steel structure |
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