CN111021529A - Column end constrained rotation assembly type swinging column system - Google Patents
Column end constrained rotation assembly type swinging column system Download PDFInfo
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- CN111021529A CN111021529A CN201911262619.9A CN201911262619A CN111021529A CN 111021529 A CN111021529 A CN 111021529A CN 201911262619 A CN201911262619 A CN 201911262619A CN 111021529 A CN111021529 A CN 111021529A
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- column
- swinging
- assembled
- swing
- column end
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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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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- 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
- E04H9/025—Structures with concrete columns
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a column end constraint rotation assembly type swinging column system, which comprises a column end rotation constraint device, an assembly type swinging column body and a rubber support; the assembled swing column consists of concrete and a rib body; the column end rotation restraining device connects the assembled swing column with the frame beam; a rubber support is arranged at the joint of the assembled swing column and the frame beam; one end of the column end rotation restraint device is prefabricated inside the frame beam, and the other end of the column end rotation restraint device is covered on the outer side of the assembled swinging column body; the column end rotation restraint device is composed of an inner steel plate and an outer FRP sheet. The invention utilizes the mode of the rubber support and the column end restraint device to connect the swinging column and the frame beam, reduces the column end damage of the swinging column after swinging, and improves the defect that the lateral stiffness of the common swinging column is reduced after swinging; the column end restraint device controls the deformation of the swing structure on the premise of not reducing the section area of the column, so that the swing column system can quickly recover the use function after the earthquake.
Description
Technical Field
The invention relates to a column end constraint rotation assembly type swing column system which can be used in a self-resetting swing structure.
Background
Since the 20 th century 90 s, the performance-based building earthquake-resistant design becomes one of the mainstream directions of the structural earthquake-resistant research, and several development processes such as FEMA273(Federal Emergency management agency), FEMA 356 and FEMA445 have been experienced so far. However, in recent years, how to make the whole building, even the whole city, and even the whole society have recovery function (Resilience) after the earthquake happens has attracted the attention and wide discussion of the earthquake engineering world. In the cooperation research plan conference of the second stage of the NEES/E-Defense Meiri earthquake engineering in 1 month in 2009, American and Japanese scholars propose a restorable functional city as a large direction of earthquake engineering cooperation for the first time. How to design a structure which can not be damaged or only be damaged quickly in the earthquake becomes one of the important research directions for continuously developing engineering earthquake resistance.
In earlier rocking building structures, it was common practice to relax the constraints between the structure and the foundation, i.e. the superstructure to foundation interface could be stressed but with little tension, allowing some lifting of the superstructure at the foundation interface under the horizontal overturning moment. In addition to the design of a swinging structure formed by relaxing basic constraints, American, European, Japanese and Chinese scholars also develop structural designs for relaxing the constraints among members, such as a post-tensioned prestressed prefabricated frame structure, the structure is swung by relaxing beam-column joint constraints and allowing the rotation of frame beams, and the structure is self-restored by prestressing.
For the reinforced concrete swinging column, the concrete at the edge of the column end is easy to damage in the swinging state, the damage of the column end not only affects the stability of a system swinging mechanism, but also brings inconvenience to the restoration of the structure after the earthquake, and if the damage degree is not properly controlled, the later stage threatens the safety of the structure. By developing high-performance structural materials, structural members and a structural system 'reinforced' structure, the relatively weak links of the structure are damaged when an earthquake occurs. Meanwhile, certain parts of the structure system are weakened, energy dissipation is concentrated at the parts, combined application of dissipation and separation is realized, the damage of the structure under the action of an earthquake is effectively controlled, and the function restorable capability of the structure is ensured.
Disclosure of Invention
The invention provides a column end constraint rotation assembly type swinging column system which can be used in a self-resetting swinging structure.
The technical scheme adopted by the invention is as follows:
a column end constraint rotation assembly type swinging column system comprises a column end rotation constraint device, an assembly type swinging column body and a rubber support; the assembled swing column consists of concrete and a rib body; the column end rotation restraining device connects the assembled swing column with the frame beam; a rubber support is arranged at the joint of the assembled swing column and the frame beam; one end of the column end rotation restraint device is prefabricated inside the frame beam, and the other end of the column end rotation restraint device is covered on the outer side of the assembled swinging column body; the column end rotation restraint device is composed of an inner steel plate and an outer FRP sheet.
The invention has the advantages that:
1. the invention utilizes the rubber support to connect the frame beam and the swinging column body, realizes a column end rotation energy consumption mechanism, reduces the column end damage of the swinging column after swinging, and simultaneously avoids the complex working procedure caused by the bar penetrating inside the column beam node.
2. The column end restraint device is used for connecting the frame beam and the swing column body on the premise of not greatly changing the section area of the column, restraining the column end, controlling the damage of the column end and controlling the swing behavior of the column body.
3. The rubber support is arranged at the joint of the swing column and the frame beam, and in the swing process, the column foot and the frame beam are prevented from colliding to generate local damage under the action of an earthquake through uneven deformation generated by the rubber support.
4. The restraint device is used for controlling the rotation behavior of the column end, and necessary rotation rigidity and shearing-resistant bearing capacity are provided for the swing column.
Drawings
The column end constrained rotation assembly type swinging column system is further explained with reference to the attached drawings.
FIG. 1 is a schematic view of a swing post system with a post-constrained pivoting assembly.
Fig. 2 is an installation view of a column end rotation-restricting assembled swing column system.
Detailed Description
A column end constrained rotation fabricated sway brace system is described in further detail with reference to fig. 2.
A column end constraint rotation assembly type swinging column system comprises a column end rotation constraint device 2, an assembly type swinging column body 1 and a rubber support 3; the assembly type swinging column 1 consists of concrete 1-1 and a rib body 1-2; the column end rotation restraining device 2 connects the assembled swing column 1 with the frame beam 4; a rubber support 3 is arranged at the joint of the assembly type swinging column 1 and the frame beam 4; one end of the column end rotation restraint device 2 is prefabricated inside the frame beam 4, and the other end of the column end rotation restraint device is wrapped outside the assembled swing column body 1.
The column end rotation restraint device 2 is composed of an inner steel plate 2-1 and an outer FRP sheet 2-2.
The assembled swing post 1 adopts a common reinforced concrete column or a combined structure column.
And a shear-resistant structure is selectively arranged between the assembled swing column 1 and the column end rotation restraint device 2.
The assembled swing column 1 is provided with a chamfer at the column base to avoid the damage of the column end in the swing process.
The column end rotation restraint device 2 is made of steel plates, FRP profiles or FRP-steel composite pipe materials.
The column end rotation restraint device 2 is effectively connected with the swing column end and the frame beam, and through reasonable design, the connection damage of the restraint device and the beam column in the swing process is avoided. The column end rotation restraint device is reasonably arranged along the periphery of the column end of the swing column to restrain the rotation of the swing column in the swing process.
The swinging column is of an assembled concrete structure and can have various cross section forms, and the column body is ensured to have enough strength in the swinging process through reasonable design of the column body.
The column end rotation restraint device is composed of an FRP sheet and a steel plate, is a replaceable part, has the same cross section as that of the column body, restrains the column end, can improve the strength of the column end, is connected with the beam system, and can provide necessary rotation rigidity for the column body, so that the lateral rigidity of the structural system is improved, the node shear bearing capacity can be improved, and the column-beam shear slippage at the node can be prevented.
The rubber support is arranged at the joint of the swing column and the frame beam, the column body swings in the earthquake process, the column end rotation energy dissipation mechanism is realized through the uneven deformation of the rubber support, and meanwhile, the damage of the column end due to stress concentration is avoided.
The scope of the present invention includes, but is not limited to, the products and versions of the above embodiments, and any suitable variations or modifications of the column-end constrained swivel-mount swing column system consistent with the claims and made by those skilled in the art are intended to fall within the scope of the present patent.
Claims (5)
1. The utility model provides a column end restraint rotates assembled and shakes pendulum post system which characterized in that: the device comprises a column end rotation restraining device, an assembled swinging column body and a rubber support;
the assembled swing column consists of concrete and a rib body;
the column end rotation restraining device connects the assembled swing column with the frame beam; a rubber support is arranged at the joint of the assembled swing column and the frame beam;
one end of the column end rotation restraint device is prefabricated inside the frame beam, and the other end of the column end rotation restraint device is covered on the outer side of the assembled swinging column body;
the column end rotation restraint device is composed of an inner steel plate and an outer FRP sheet.
2. The column end constrained rotation fabricated sway column system of claim 1, wherein: the assembled swinging column adopts a common reinforced concrete column or a combined structure column.
3. The column end constrained rotation fabricated sway column system of claim 1, wherein: and a shear-resistant structure is selectively arranged between the assembled swing column and the column end rotation restraint device.
4. The column end constrained rotation fabricated sway column system of claim 1, wherein: the assembled swing column is provided with a chamfer at the column base to avoid the damage of the column end in the swing process.
5. The column end constrained rotation fabricated sway column system of claim 1, wherein:
the column end rotation restraint device is made of steel plates, FRP profiles or FRP-steel composite pipe materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911262619.9A CN111021529A (en) | 2019-12-11 | 2019-12-11 | Column end constrained rotation assembly type swinging column system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911262619.9A CN111021529A (en) | 2019-12-11 | 2019-12-11 | Column end constrained rotation assembly type swinging column system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111021529A true CN111021529A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911262619.9A Pending CN111021529A (en) | 2019-12-11 | 2019-12-11 | Column end constrained rotation assembly type swinging column system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111021529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075643A (en) * | 2022-07-08 | 2022-09-20 | 安徽工业大学 | Controllable post system that sways based on earthquake early warning system |
-
2019
- 2019-12-11 CN CN201911262619.9A patent/CN111021529A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075643A (en) * | 2022-07-08 | 2022-09-20 | 安徽工业大学 | Controllable post system that sways based on earthquake early warning system |
| CN115075643B (en) * | 2022-07-08 | 2024-04-09 | 安徽工业大学 | Controllable swing column system based on earthquake early warning system |
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