CN113152708A - Vibration and earthquake double-control strategy mainly based on horizontal vibration resistance - Google Patents
Vibration and earthquake double-control strategy mainly based on horizontal vibration resistance Download PDFInfo
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- CN113152708A CN113152708A CN202110185425.4A CN202110185425A CN113152708A CN 113152708 A CN113152708 A CN 113152708A CN 202110185425 A CN202110185425 A CN 202110185425A CN 113152708 A CN113152708 A CN 113152708A
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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
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Abstract
The invention provides a vibration and earthquake double-control strategy and structure mainly based on horizontal earthquake resistance, which is characterized in that the control strategy comprises that a laminated rubber vibration isolator (20) is arranged on a foundation beam (10) of a building and is used for horizontal earthquake resistance; arranging a vertical vibration isolator (30) on the laminated rubber vibration isolator (20) for supporting a column (40) of a building and enhancing vertical vibration isolation; and arranging a viscous damper (60) between the foundation beam and the frame beam (50) of the building to enhance horizontal earthquake resistance, so that the building can meet the double-control requirement in the horizontal and vertical directions simultaneously.
Description
Technical Field
The invention belongs to the technical field of building structure vibration control, and particularly relates to a vibration and earthquake double-control strategy mainly based on horizontal earthquake resistance.
Background
At present, a systematic concept control method combining horizontal anti-seismic vibration and vertical vibration isolation is lacked, and the selection of the two control methods is also lacked, so that the design only aiming at the horizontal anti-seismic vibration or the vertical vibration isolation is mainly used in the actual engineering. The current engineering method has the following defects:
(1) horizontal seismic resistance alone causes vertical damage. At present, laminated rubber is widely used, only the action of horizontal seismic load is considered, the action of vertical vibration isolation is hardly considered, and the laminated rubber is damaged when vertical industrial vibration exists.
(2) Only vertical vibration isolation is performed to cause horizontal damage. The steel spring vibration isolator is widely used at present, only vertical industrial vibration is considered, horizontal earthquake load is hardly considered, and the steel spring vibration isolator can be damaged when horizontal vibration is generated by an earthquake.
(3) The traditional anti-seismic design can not simultaneously meet the requirements of structural deformation and vibration control under the action of earthquake. The traditional anti-seismic design generally adopts an increased section area and a rigid foundation, conflicts with the requirements of structural use functions, has low redundancy protection degree, and is large in transformation and upgrading difficulty, long in construction period and high in manufacturing cost.
Accordingly, there is a need for new techniques and methods that address, at least in part, the above-mentioned problems of the prior art.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a vibration and earthquake double control strategy which mainly aims at horizontal vibration resistance, and aims to design functionality and comfort level on the premise of ensuring the safety of building structures and equipment so as to ensure that a building is not damaged under the action of an earthquake and the production quality and the daily life quality of people are not influenced in the industrial vibration process, thereby realizing the design target of vibration and earthquake double control of the building.
According to one aspect of the invention, a vibration-and-shock dual control strategy based on horizontal vibration resistance is provided, which comprises
The laminated rubber vibration isolator (20) is arranged on a foundation beam (10) of a building and is used for resisting earthquake in the horizontal direction;
arranging a vertical vibration isolator (30) on the laminated rubber vibration isolator (20) for supporting a column (40) of a building and enhancing vertical vibration isolation; and
viscous dampers (60) are arranged between the foundation beams and the frame beams (50) of the building to enhance horizontal earthquake resistance, so that the building can meet double control requirements in the horizontal and vertical directions simultaneously.
According to an embodiment of the invention, the vertical vibration isolator (30) is a polyurethane vibration isolator.
According to an embodiment of the present invention, the viscous damper (60) is a cylindrical cartridge-type viscous damper or a hydraulic-type viscous damper.
According to another aspect of the present invention, there is provided a vibration-and-shock double control structure mainly for horizontal vibration resistance, comprising:
the laminated rubber vibration isolator (20) is arranged on a foundation beam (10) of a building and is used for resisting earthquake in the horizontal direction;
a vertical vibration isolator (30) provided on the laminated rubber vibration isolator (20) for supporting a column (40) of a building and enhancing vertical vibration isolation; and
and a viscous damper (60) is arranged between the foundation beam and the frame beam (50) of the building to enhance horizontal earthquake resistance, so that the building can meet double control requirements in the horizontal and vertical directions.
According to an embodiment of the invention, the vertical vibration isolator (30) is a polyurethane vibration isolator.
According to an embodiment of the present invention, the viscous damper (60) is a cylindrical cartridge-type viscous damper or a hydraulic-type viscous damper.
The design thinking of the invention comprises adopting a design principle of mainly horizontal shock resistance, so that the displacement angle between layers reaches the limit value, and meanwhile, a polyurethane shock absorption pad is added to meet the vertical shock absorption requirement. The invention is mainly suitable for buildings with vibration and shock double control requirements, such as rail transit, industrial buildings, precision machining, electronic industry, aerospace, large scientific devices, optical detection, energy engineering and the like, and the technical invention has the following characteristics:
1. horizontal earthquake resistance is strengthened: on the basis of the original laminated rubber, a horizontal viscous damper is added, so that the horizontal shock resistance is further enhanced, and the building is ensured not to be damaged in the earthquake.
2. Vertical vibration isolation is added: the polyurethane vibration isolator is additionally arranged, so that the engineering vibration is reduced, the use functions and the personnel comfort of buildings and equipment are fully considered, and the safety design of the structure is realized.
3. Simultaneously, double control is satisfied: according to the principle of priority of earthquake damage control, horizontal shock insulation is carried out, vibration control is carried out by additionally arranging a polyurethane vibration isolation pad, a viscous damping technology is added, the building and the shock insulation (vibration) device are intact and undamaged in the process of earthquake and engineering vibration, and the double-control requirements are met horizontally and vertically.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic flow diagram of a vibration-seismic control strategy based on horizontal seismic resistance according to an embodiment of the present invention;
fig. 2 is a schematic view of a vibration-vibration double control structure mainly based on horizontal vibration resistance according to an embodiment of the present invention.
Detailed Description
The vibration control structure and the design method of the subway neighboring ancient building are further explained by combining the attached drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure.
FIG. 1 is a schematic flow diagram of a vibration-seismic control strategy based on horizontal seismic resistance according to an embodiment of the present invention; fig. 2 is a schematic view of a vibration-vibration double control structure mainly based on horizontal vibration resistance according to an embodiment of the present invention. Referring to fig. 1-2, according to the earthquake (vibration) prevention information requirement table, a traditional earthquake-proof design is performed on a building, the earthquake-proof design generally mainly adopts horizontal vibration isolation, a laminated rubber vibration isolator (20) is generally arranged between a foundation beam (10) and a column (40) of the building, and the laminated rubber vibration isolator (20) has high vertical bearing capacity and vertical rigidity and strong horizontal deformability and restoring force. At this time, the method strategy of the invention is utilized to judge whether the anti-seismic design meets the vibration control requirement.
At present, a systematic concept control method combining horizontal anti-vibration and vertical vibration isolation is lacked, and the selection of the two control methods is also lacked, so that the design only aiming at the horizontal anti-vibration or the vertical vibration isolation is mainly used in the actual engineering. Therefore, when the vibration control requirement is not met, the vertical vibration isolator (30) is further arranged on the laminated rubber vibration isolator (20), for example, the vertical vibration isolator can be a polyurethane vibration isolator or the like, and the polyurethane vibration isolator is a vibration isolator made of synthetic polymer materials, has high bearing capacity and excellent vibration isolation performance, and therefore, the vertical vibration isolation level is enhanced, and the control requirement is met.
And then, further judging whether the design meets the deformation requirement of the vibration isolator according to the deformation using condition. If not, a viscous damper (60) is further arranged between the foundation beam (10) and the frame beam (50) of the building to enhance horizontal earthquake resistance, so that the building meets double control requirements in the horizontal and vertical directions at the same time. The viscous damper (60) is, for example, a cylindrical cartridge-type viscous damper or a hydraulic viscous damper, and increases horizontal shock resistance by the principle that a fluid generates a throttling resistance when passing through an orifice.
The invention mainly adopts a horizontal anti-seismic strategy. For the structure or the component which mainly takes earthquake isolation in the double effects of the vibration and the earthquake, the design which mainly takes horizontal earthquake isolation is adopted, and a horizontal viscous damper is additionally arranged on the basis of the original laminated rubber shock isolator to strengthen the horizontal earthquake resistance.
While vertical anti-vibration is considered. For a structure or a component which is mainly used for isolating earthquake in the double effects of vibration and earthquake, the polyurethane vibration isolation pad is added on the basis of meeting the horizontal earthquake-proof requirement, so that the interlayer displacement angle meets the requirement, and finally the aim of vertical earthquake resistance is fulfilled.
And simultaneously control seismic and engineering vibrations. The method is characterized in that a laminated rubber shock insulation scheme is adopted to carry out shock insulation design for meeting the earthquake fortification requirement, a polyurethane shock insulation pad is additionally arranged to carry out shock absorption and isolation, a viscous damper is configured to consume energy and absorb shock according to the use deformation condition, and the reduction of the earthquake and vibration effects is finally realized through continuous optimization. On the basis of the existing product development technology, the integration of deep vibration isolation (shock) and energy consumption limiting products is developed.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent structural changes of the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. A vibration and earthquake double control strategy mainly based on horizontal vibration resistance is characterized by comprising the following steps:
the laminated rubber vibration isolator (20) is arranged on a foundation beam (10) of a building and is used for resisting earthquake in the horizontal direction;
arranging a vertical vibration isolator (30) on the laminated rubber vibration isolator (20) for supporting a column (40) of a building and enhancing vertical vibration isolation; and
viscous dampers (60) are arranged between the foundation beams and the frame beams (50) of the building to enhance horizontal earthquake resistance, so that the building can meet double control requirements in the horizontal and vertical directions simultaneously.
2. The dual control strategy for vibration and shock dominated by horizontal seismic resistance according to claim 1, where the vertical vibration isolator (30) is a polyurethane isolator.
3. The dual-control strategy for horizontal seismic resistance according to claim 1, wherein the viscous damper (60) is a cylindrical cartridge-type viscous damper or a hydraulic viscous damper.
4. A vibration and earthquake double control structure mainly based on horizontal vibration and earthquake, which is characterized by comprising:
the laminated rubber vibration isolator (20) is arranged on a foundation beam (10) of a building and is used for resisting earthquake in the horizontal direction;
a vertical vibration isolator (30) provided on the laminated rubber vibration isolator (20) for supporting a column (40) of a building and enhancing vertical vibration isolation; and
and a viscous damper (60) is arranged between the foundation beam and the frame beam (50) of the building to enhance horizontal earthquake resistance, so that the building can meet double control requirements in the horizontal and vertical directions.
5. The structure according to claim 4, wherein the vertical vibration isolator (30) is a polyurethane vibration isolator.
6. The dual-control vibration and shock control strategy for mainly horizontal earthquake resistance according to claim 4, wherein the viscous damper (60) is a cylindrical cartridge-type viscous damper or a hydraulic viscous damper.
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| CN202110185425.4A CN113152708A (en) | 2021-02-10 | 2021-02-10 | Vibration and earthquake double-control strategy mainly based on horizontal vibration resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627377A (en) * | 2020-12-17 | 2021-04-09 | 机械工业勘察设计研究院有限公司 | Vibration and shock double-control structure for timber structure ancient building along subway line and design method |
| CN114164956A (en) * | 2021-11-15 | 2022-03-11 | 张旭光 | A kind of vibration isolation device and installation method for double vibration and vibration control of buildings |
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| JP2000154667A (en) * | 1998-11-18 | 2000-06-06 | Construccion Aeronauticas Sa | System for modifying the stiffness / damping properties of structural joints |
| CN101024982A (en) * | 2007-03-22 | 2007-08-29 | 武汉理工大学 | 3-D vibration control method and controller for structural member |
| CN101824862A (en) * | 2010-04-20 | 2010-09-08 | 上海大学 | Three-dimensional energy-consumption shock-absorption device |
| CN102587529A (en) * | 2012-02-01 | 2012-07-18 | 钟阳 | Vibration isolation device for seismic resistance of building |
| CN109295996A (en) * | 2018-11-05 | 2019-02-01 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of combined type steam turbine generator spring foundation |
| CN110847409A (en) * | 2019-12-10 | 2020-02-28 | 武汉理工大学 | A three-dimensional vibration isolation structure of a subway superstructure |
| CN112240062A (en) * | 2020-09-15 | 2021-01-19 | 江苏科技大学 | A three-dimensional seismic isolation structure system |
-
2021
- 2021-02-10 CN CN202110185425.4A patent/CN113152708A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154667A (en) * | 1998-11-18 | 2000-06-06 | Construccion Aeronauticas Sa | System for modifying the stiffness / damping properties of structural joints |
| CN101024982A (en) * | 2007-03-22 | 2007-08-29 | 武汉理工大学 | 3-D vibration control method and controller for structural member |
| CN101824862A (en) * | 2010-04-20 | 2010-09-08 | 上海大学 | Three-dimensional energy-consumption shock-absorption device |
| CN102587529A (en) * | 2012-02-01 | 2012-07-18 | 钟阳 | Vibration isolation device for seismic resistance of building |
| CN109295996A (en) * | 2018-11-05 | 2019-02-01 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of combined type steam turbine generator spring foundation |
| CN110847409A (en) * | 2019-12-10 | 2020-02-28 | 武汉理工大学 | A three-dimensional vibration isolation structure of a subway superstructure |
| CN112240062A (en) * | 2020-09-15 | 2021-01-19 | 江苏科技大学 | A three-dimensional seismic isolation structure system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627377A (en) * | 2020-12-17 | 2021-04-09 | 机械工业勘察设计研究院有限公司 | Vibration and shock double-control structure for timber structure ancient building along subway line and design method |
| CN114164956A (en) * | 2021-11-15 | 2022-03-11 | 张旭光 | A kind of vibration isolation device and installation method for double vibration and vibration control of buildings |
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Application publication date: 20210723 |