CN112814189A - Novel friction device for earthquake resistance of prefabricated building - Google Patents
Novel friction device for earthquake resistance of prefabricated building Download PDFInfo
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- CN112814189A CN112814189A CN202110006119.XA CN202110006119A CN112814189A CN 112814189 A CN112814189 A CN 112814189A CN 202110006119 A CN202110006119 A CN 202110006119A CN 112814189 A CN112814189 A CN 112814189A
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- friction
- prefabricated building
- steel outer
- friction device
- earthquake resistance
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000000452 restraining effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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
Abstract
The invention relates to the field of constructional engineering, and discloses a novel friction device for earthquake resistance of a prefabricated building, which comprises a rotating device, wherein a friction round block is arranged inside a steel outer disc, an inner fixing part is arranged on the inner side of the friction round block, an outer fixing part is arranged on the outer side of the steel outer disc, a high-strength bolt is arranged on the outer side of the center of the outer fixing part, a rectangular iron block is connected to one side of the steel outer disc, and foot restraining bolts are arranged at two ends of the rectangular iron block. Through installing friction device in the junction of roof beam and post, the toe bolt is fixed two steel outer dishes respectively on roof beam and post, high strength bolt is fixed steel outer dish and each part again, the relative rotation at roof beam and post interface can lead to the friction disk surface among the friction device to produce rotatory sliding when receiving the vibrations effect, thereby the dissipated energy, reduce top displacement and structural damage's possibility, current prefabricated building antidetonation has been solved to this structure and has been used novel friction device bradyseism inefficiency, influence the problem that people's life and property safety and installation are complicated.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a novel friction device for earthquake resistance of a prefabricated building.
Background
The earthquake-proof building refers to a region with earthquake-proof fortification intensity of 6 degrees or more, and more than 95% of human lives and deaths in global major earthquake disasters are caused by damage or collapse of buildings. The method is the most direct and effective method for reducing earthquake disasters by exploring and preventing the damage and collapse reasons of the building in the earthquake and building an earthquake-resistant building which can withstand the strong earthquake from the engineering. The improvement of the earthquake resistance of buildings is one of the main measures for improving the comprehensive defense capability of cities, and is also a main task of 'resistance' in the work of earthquake prevention and disaster reduction. The prefabricated building refers to that components such as concrete beams, plates and columns are cast and produced in a factory and then transported to an engineering site for assembly, so that the engineering time can be shortened to a great extent, and the manpower and financial resources are saved.
Passive control systems have been successfully used to reduce the dynamic response of structures subjected to severe earthquakes, with the result that their energy consumption requirements for major structural components and the likelihood of structural damage have been found to be greatly reduced. Friction dampers are commonly used as components of passive control systems because they provide high energy consumption capability at relatively low cost and are easy to install and maintain. Many researchers have studied and tested a variety of energy dissipation systems, whether for retrofitting after earthquakes or for new construction. However, the application of the existing friction damper on a prefabricated building is relatively less, the effect of the existing friction damper is not ideal, the damping efficiency is low, the life and property safety of people is seriously threatened, meanwhile, the existing friction damper is high in production cost and not easy to install and maintain, and a novel friction device for earthquake resistance of the prefabricated building is provided for solving the problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a novel friction device for earthquake resistance of a prefabricated building, which has the advantages of high-efficiency earthquake-buffering effect, easiness in installation and maintenance and capability of predicting external conditions to respond, and solves the problems that the conventional novel friction device for earthquake resistance of the prefabricated building is low in earthquake-buffering efficiency, influences the life and property safety of people and is complex in installation process.
(II) technical scheme
In order to achieve the purposes of high-efficiency cushioning effect, easy installation and maintenance and response in predicting external conditions, the invention provides the following technical scheme: the utility model provides a prefabricated building antidetonation is with novel friction device, includes rotary device, the internally mounted of steel outer dish has the friction circle piece, and the inboard of friction circle piece is provided with interior fixed part, and the outside of steel outer dish is provided with outer fixed part, and high strength bolt is installed in the outer fixed part center outside, and one side of steel outer dish is connected with the rectangle iron plate, and the foot bolt is restrainted to rectangle iron plate both ends installation, and the foot bolt is restrainted and the steel outer dish is fixed respectively on roof beam and post, and steel outer dish and outer fixed part are refastened to high strength bolt.
Preferably, the friction round blocks are four in number and have rough surfaces, and the rough friction round blocks can achieve the purpose of reducing slippage, so that the four friction round blocks are guaranteed to be vibrated by the outside world to prevent displacement and generate the maximum energy dissipation.
Preferably, the steel outer disc is quarter circular, and quantity is four, and the area is greater than the friction disc to guarantee to rotate smoothly, corresponding with the friction disk simultaneously, play the effect of stable friction disk.
Preferably, the external fixing parts are made of steel, the number of the external fixing parts is two, the inner sides of the external fixing parts are planes, and the sizes of the external fixing parts correspond to those of the friction round blocks, so that smooth attachment with the outer sides of the friction round blocks is guaranteed, and the device can quickly and accurately respond to external conditions.
Preferably, the internal fixing part is made of steel, the surface of the internal fixing part is matched with the friction round block, and the size of the internal fixing part corresponds to that of the friction round block, so that the friction round block is smoothly fixed by the internal fixing part, rotation is realized, and slippage is avoided.
Preferably, the number of the high-strength bolts is two, the high-strength bolts correspond to the round holes in the centers of the outer fixing parts, and the length of the high-strength bolts is larger than the thickness of the outer fixing parts, so that the outer fixing parts and the friction round block can be smoothly fixed, and the high-strength bolts are kept stable under high-strength external force.
Preferably, the rectangle iron plate is connected with one side and steel outer dish, and the opposite side is the plane, and the width is greater than the twice of steel outer dish thickness to guarantee that steel outer dish drives the smooth rotation of friction disk, and the rectangle iron plate can stably laminate on roof beam and post.
Preferably, the foot-restraining bolt corresponds to the round holes on the two sides of the rectangular iron block, and the length of the foot-restraining bolt is far greater than the thickness of the rectangular iron block, so that the whole device can be smoothly fixed at the joint of the beam and the column and is stable and vibration-resistant.
(III) advantageous effects
Compared with the prior art, the invention provides a novel friction device for earthquake resistance of a prefabricated building, which has the following beneficial effects:
1. this prefabricated building antidetonation is with novel friction device, through installing friction device in the junction of roof beam and post, the foot bolt of restrainting fixes two steel outer dishes respectively on roof beam and post, high strength bolt is the steel outer dish of refastening and each part again, the relative rotation at roof beam and post interface can lead to the friction circle piece surface among the friction device to produce rotatory the sliding when receiving the vibrations effect, thereby the dissipation energy, reduce top displacement and structural damage's possibility, current prefabricated building antidetonation is with novel friction device bradyseism inefficiency has been solved to this structure, influence people's security of the lives and property and the complicated problem of installation.
2. This prefabricated building antidetonation is with novel friction device through installing five steel parts the relative rotation that takes place between precast beam and post component to guarantee can the dissipated energy, and because friction device places outside the junction, consequently can easily accomplish inspection and the maintenance of earthquake back beam and post junction. Thereby realizing the maximum cushioning effect on the prefabricated building and avoiding the problems of huge production cost and difficult device maintenance work.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention in use at a beam and column junction;
FIG. 3 is a construction drawing of beams and columns when the prefabricated frame office building is actually used in the present invention;
FIG. 4 is a construction drawing of a beam and a column when the present invention is practically applied to an industrial building;
in the figure: 1 friction round block, 2 steel outer disc, 3 outer fixing part, 4 inner fixing part, 5 high strength bolt, 6 rectangular iron block, 7 foot bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a novel friction device for earthquake resistance of a prefabricated building comprises rotating devices 1 and 2, a friction round block 1 is mounted inside a steel outer disc 2, an inner fixing part 4 is arranged on the inner side of the friction round block 1, an outer fixing part 3 is arranged on the outer side of the steel outer disc 2, a high-strength bolt 5 is mounted on the outer side of the center of the outer fixing part 3, a rectangular iron block 6 is connected to one side of the steel outer disc 2, foot restraining bolts 7 are mounted at two ends of the rectangular iron block 6, the steel outer disc 2 is fixed on a beam and a column respectively by the foot restraining bolts 7, and the steel outer disc 2 and the outer fixing part 3 are fixed by the high-strength bolt 5.
The working principle is as follows: the novel friction device for earthquake resistance of the prefabricated building is characterized in that when the novel friction device for earthquake resistance of the prefabricated building works, the friction device is arranged at the joint of a beam and a column, two steel outer discs 2 are respectively fixed on the beam and the column through the binding bolt 7, the steel outer discs 2 and each part are fixed through the high-strength bolt 5, the friction circular block 1 in the friction device can rotate and slide on the surface due to the relative rotation of the interface of the beam and the column under the action of vibration, so that energy is dissipated, the possibility of top displacement and structural damage is reduced, the five steel parts are arranged between the prefabricated beam and the column to rotate relatively, so that the energy can be dissipated, and the friction device is arranged outside the joint, so that the joint of the post-earthquake beam and the column can be easily inspected and maintained, the earthquake damping effect on the prefabricated building to the maximum degree is realized, and the huge production cost and the difficulty in device maintenance work are, the novel friction device is used in current prefabricated building antidetonation and has been solved to this structure and has cushioned inefficiency, influences the problem that people's security of lives and property and installation are complicated.
As shown in fig. 3: through analyzing the prototype concrete prefabricated frame building office building, the cross section size of the upright post is 70 multiplied by 70cm, the interlayer height is 5.5m, the square columns are connected by a prestressed RC beam with an inverted T-shaped constant section, and the novel friction device for earthquake resistance of the prefabricated building is arranged at the joint of the beam and the column.
As shown in fig. 4: by analysis of the existing prefabricated industrial building, a rectangular plane is presented, with the larger side equal to 56.4m and the smaller side equal to 31.8 m. The square columns have dimensions of 60 x 60cm and a length equal to 6m and are connected by prestressed beams parallel to the longitudinal sides of the building. In the orthogonal direction, the tiles representing the roof are placed on the cross beams. The connection between the main beam and the upright post is carried out through a layer of neoprene bearing. To avoid the beams falling off the support plates during seismic excitation, a pin connection is inserted at the beam-to-column connection. The intervention in the beam and column connection is reinforced by plates bolted to the sides of the beam and columns when installing the friction means.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prefabricated building antidetonation is with novel friction device, including rotary device (1) and (2), the internally mounted of steel outer dish (2) has friction disk (1), the inboard of friction disk (1) is provided with internal fixation part (4), the outside of steel outer dish (2) is provided with external fixation part (3), high strength bolt (5) are installed in external fixation part (3) center outside, one side of steel outer dish (2) is connected with rectangle iron plate (6), restraint foot bolt (7) are installed at rectangle iron plate (6) both ends, restraint foot bolt (7) are fixed steel outer dish (2) respectively on roof beam and post, high strength bolt (5) are fixed steel outer dish (2) and external fixation part (3) again.
2. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the number of the friction round blocks (1) is four, and the surface is rough.
3. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the steel outer disc (2) is in a quarter circle shape, the number of the steel outer disc is four, and the area of the steel outer disc is larger than that of the friction disc (1).
4. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the outer fixing parts (3) are made of steel, the number of the outer fixing parts is two, the inner sides of the outer fixing parts are planes, and the sizes of the outer fixing parts correspond to those of the friction round blocks (1).
5. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the inner fixing part (4) is made of steel, the surface of the inner fixing part is matched with the friction round block (1), and the inner fixing part corresponds to the friction round block in size.
6. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the number of the high-strength bolts (5) is two, the high-strength bolts correspond to the round hole in the center of the outer fixing part (3), and the length of the high-strength bolts is larger than the thickness of the outer fixing part (3).
7. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the rectangular iron block (6) is connected with the steel outer disc (7) on one side, the other side is a plane, and the width of the rectangular iron block is more than twice of the thickness of the steel outer disc (2).
8. A novel friction device for earthquake resistance of a prefabricated building according to claim 1, wherein: the toe-binding bolt (7) corresponds to the round holes on the two sides of the rectangular iron block (6), and the length of the toe-binding bolt is far larger than the thickness of the rectangular iron block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006119.XA CN112814189A (en) | 2021-01-05 | 2021-01-05 | Novel friction device for earthquake resistance of prefabricated building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006119.XA CN112814189A (en) | 2021-01-05 | 2021-01-05 | Novel friction device for earthquake resistance of prefabricated building |
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| CN112814189A true CN112814189A (en) | 2021-05-18 |
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| CN202110006119.XA Pending CN112814189A (en) | 2021-01-05 | 2021-01-05 | Novel friction device for earthquake resistance of prefabricated building |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556748A (en) * | 2013-11-01 | 2014-02-05 | 贵州大学 | Method and device for improving shock resistance of building or bridge |
| CN103835387A (en) * | 2014-03-17 | 2014-06-04 | 河北联合大学 | Assembly-type frame structure joint friction damper |
| CN104499422A (en) * | 2014-11-24 | 2015-04-08 | 北京工业大学 | Friction energy dissipation beam falling prevention device |
| CN105317135A (en) * | 2015-10-23 | 2016-02-10 | 西南交通大学 | Friction damper for ancient timber structure tenon-mortise joints |
| CN205206071U (en) * | 2015-11-04 | 2016-05-04 | 沈阳建筑大学 | Disc type friction power consumption attenuator |
| KR101724534B1 (en) * | 2015-11-27 | 2017-04-07 | 인천대학교 산학협력단 | Energy dissipation elastomer-friction damper |
| CN106894534A (en) * | 2016-11-21 | 2017-06-27 | 北京筑信润捷科技发展有限公司 | Friction energy-dissipating damper |
| CN207453605U (en) * | 2017-09-30 | 2018-06-05 | 广州大学 | A kind of friction energy consuming device and pivoting friction energy-dissipation beam column node |
| CN108560706A (en) * | 2018-06-20 | 2018-09-21 | 中国矿业大学 | A kind of friction energy-dissipating Self-resetting fully assembled joint |
-
2021
- 2021-01-05 CN CN202110006119.XA patent/CN112814189A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556748A (en) * | 2013-11-01 | 2014-02-05 | 贵州大学 | Method and device for improving shock resistance of building or bridge |
| CN103835387A (en) * | 2014-03-17 | 2014-06-04 | 河北联合大学 | Assembly-type frame structure joint friction damper |
| CN104499422A (en) * | 2014-11-24 | 2015-04-08 | 北京工业大学 | Friction energy dissipation beam falling prevention device |
| CN105317135A (en) * | 2015-10-23 | 2016-02-10 | 西南交通大学 | Friction damper for ancient timber structure tenon-mortise joints |
| CN205206071U (en) * | 2015-11-04 | 2016-05-04 | 沈阳建筑大学 | Disc type friction power consumption attenuator |
| KR101724534B1 (en) * | 2015-11-27 | 2017-04-07 | 인천대학교 산학협력단 | Energy dissipation elastomer-friction damper |
| CN106894534A (en) * | 2016-11-21 | 2017-06-27 | 北京筑信润捷科技发展有限公司 | Friction energy-dissipating damper |
| CN207453605U (en) * | 2017-09-30 | 2018-06-05 | 广州大学 | A kind of friction energy consuming device and pivoting friction energy-dissipation beam column node |
| CN108560706A (en) * | 2018-06-20 | 2018-09-21 | 中国矿业大学 | A kind of friction energy-dissipating Self-resetting fully assembled joint |
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