CN110670724A - Energy-consuming and shock-absorbing beam column joint structure for prefabricated building - Google Patents
Energy-consuming and shock-absorbing beam column joint structure for prefabricated building Download PDFInfo
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- CN110670724A CN110670724A CN201911022909.6A CN201911022909A CN110670724A CN 110670724 A CN110670724 A CN 110670724A CN 201911022909 A CN201911022909 A CN 201911022909A CN 110670724 A CN110670724 A CN 110670724A
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- column
- precast
- prefabricated
- material layer
- friction 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
- E04B1/62—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
Abstract
The invention discloses an energy-consuming and shock-absorbing beam column joint structure for an assembly type building, which is characterized in that: the beam column node structure comprises a precast beam (1) and a precast column (2), wherein a friction material layer (3) is tightly attached to the top of the precast column (2), one end of the precast beam (1) is horizontally arranged and installed on the friction material layer (3) at the top end of the corresponding precast column (2), and the precast beam (1) and the precast column (2) which are connected with each other are flexibly connected through allowing the precast beam (1) and the precast column (2) to be connected with each other to generate displacement or a corner. The beam column joint structure can improve the energy consumption and shock absorption performance of the beam column joint of the fabricated building, reduce the dynamic response of the fabricated building structure under the action of an earthquake, enhance the integral stability of the structure, and has the advantages of simple construction, economy and convenience and the function of realizing energy consumption and shock absorption.
Description
Technical Field
The invention belongs to the field of fabricated buildings, and particularly relates to an energy-consuming and shock-absorbing beam-column joint structure for fabricated buildings.
Background
The assembly type building is an important direction for realizing green building and industrialization, has wide application prospect, but the energy dissipation and shock absorption performance of the existing assembly type building has a lot of defects:
1. compared with a cast-in-place structure, the stress performance of the connecting section of the assembled beam column is weakened, so that the structural integrity is poor, the bearing capacity of the node is reduced, and the seismic performance is poor;
2. at present, most of the existing concrete dry type connection schemes are external steel members or concrete embedded members and the like, the forms are simple, effective anchoring measures are not available, the construction is complicated, and measures such as energy dissipation and shock absorption cannot be combined;
3. at present, the mode of arranging dampers at nodes of a prefabricated frame structure can effectively dissipate seismic energy under the action of an earthquake, but the mode is only limited to good damping effect at inverted T-shaped nodes and cross-shaped nodes, and the damping device has no universality and is high in manufacturing cost;
4. the assembled energy-consuming and shock-absorbing shear wall structure system is connected by adopting the connecting beam-shear wall energy-consuming connecting device between the prefabricated shear wall pieces and the prefabricated connecting beam, and vertical seam energy-consuming connecting devices or rigid connection is adopted between vertical seams of the prefabricated shear wall pieces, so that the energy-consuming performance of the assembled shear wall structure can be improved, and the assembled energy-consuming and shock-absorbing shear wall structure system has the defects of complicated construction and high technical requirement.
Therefore, it is particularly necessary to develop an assembly type beam-column joint structure which is simple in construction, economical and convenient and can realize energy dissipation and shock absorption.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an energy-consuming and shock-absorbing beam-column joint structure for an assembly type building, so that the energy-consuming and shock-absorbing performance of the beam-column joint of the assembly type building is improved, the dynamic response of the assembly type building structure under the action of an earthquake is reduced, and the integral stability of the structure is enhanced.
The invention aims to solve the problems by the following technical scheme:
the utility model provides an energy consumption shock attenuation beam column node structure for prefabricated building which characterized in that: the beam column node structure comprises a precast beam and a precast column, wherein a friction material layer is tightly attached to the top of the precast column, one end of the precast beam is flatly arranged on the friction material layer at the top end of the corresponding precast column, and the precast beam and the precast column which are connected with each other are flexibly connected through allowing the precast beam and the precast column to be displaced or turned.
Longitudinal steel bars are buried along the length direction of the prefabricated column, the upper ends of the longitudinal steel bars extend out of the friction material layer at the top end of the prefabricated column, one end of each prefabricated beam is flatly placed on the friction material layer at the top end of the corresponding prefabricated column, the upper ends of the longitudinal steel bars upwards penetrate out of the upper edge of each prefabricated beam and then are connected with nuts, and the nuts and the longitudinal steel bars which form the bolt structures are flexibly connected with the prefabricated beams and the prefabricated column.
The nut and the longitudinal steel bar form a high-strength bolt.
The precast beam is a reinforced concrete precast beam.
The prefabricated column is a reinforced concrete prefabricated square column.
The friction material layer is made of friction materials.
The thickness of the friction material layer is 1/4-2/3 of the thickness of the precast beam.
Compared with the prior art, the invention has the following advantages:
the beam and the column in the energy-consuming and damping beam-column joint structure are all prefabricated components, the beam and the column are flexibly connected through bolts formed by combining longitudinal steel bars and nuts, a layer of friction material is added between the beam and the column, the flexible connection allows the mutually connected components to generate displacement or corner, and does not limit the deformation of the beam and the column, so that when the beam and the column generate relative displacement or corner, the friction material is driven to generate friction with the surface of the beam and the column, and the effects of consuming energy and reducing the dynamic response of the structure under the action of earthquake are achieved; compared with the beam column node of the existing fabricated building, the construction method of the energy-consuming and shock-absorbing beam column node structure is relatively simple, friction materials are easy to obtain and are various in types, the requirements of different design functions and manufacturing cost can be met, and the energy-consuming and shock-absorbing beam column node structure is suitable for common single-layer plants.
Drawings
FIG. 1 is an elevation view of a beam-column node configuration of the energy dissipating and shock absorbing of the present invention;
fig. 2 is a left side view of the energy-dissipating and shock-absorbing beam-column joint structure of the present invention.
Wherein: 1, prefabricating a beam; 2, prefabricating a column; 3-a friction material layer; 4-longitudinal steel bars; and 5, a nut.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1: the utility model provides an energy consumption shock attenuation beam column node structure for assembly type structure, this beam column node structure includes precast beam 1 and precast column 2, and it has friction material layer 3 to closely laminate at the top of precast column 2, and precast beam 1 one end is kept flat and is installed on the friction material layer 3 on corresponding precast column 2 top, adopts between precast beam 1 and the precast column 2 to allow interconnect's precast beam 1 and precast column 2 to take place the flexible connection of displacement or corner.
A specific example of a flexible connection is: longitudinal steel bars 4 are buried along the length direction of the prefabricated column 2, the upper ends of the longitudinal steel bars 4 extend out of the top ends of the prefabricated column 2 and the friction material layer 3, one end of the prefabricated beam 1 is flatly placed on the friction material layer 3 at the top end of the corresponding prefabricated column 2, the upper end of each longitudinal steel bar 4 upwards penetrates out of the upper edge of the corresponding prefabricated beam 1 and then is connected with a nut 5, and the nut 5 and the longitudinal steel bars 4 which form a bolt structure are flexibly connected with the prefabricated beam 1 and the prefabricated column 2. In addition, the nut 5 and the longitudinal bar 4 constitute a high-strength bolt.
The precast beam 1 is a reinforced concrete precast beam, the precast column 2 is a reinforced concrete precast square column, the friction material layer 3 is made of friction materials, and the thickness of the friction material layer 3 is 1/4-2/3 of the thickness of the precast beam 1.
Example one
When the energy-consuming and shock-absorbing beam-column node structure is used for building a single-storey factory building, a prefabricated beam 1 is a reinforced concrete prefabricated beam, and the size of the prefabricated beam is determined by the structure of the specific assembled single-storey factory building; the prefabricated column 2 is a reinforced concrete prefabricated square column, and the size is determined by a specific assembly type single-layer factory building structure. The structure is as shown in fig. 1 and fig. 2, and comprises a precast beam 1, a precast column 2, a friction material layer 3, internal longitudinal steel bars 4 and nuts 5, wherein a friction material layer 3 is added between the precast beam 1 and the precast column 2 of the fabricated building, the beam-column connection adopts the internal longitudinal steel bars 4 and the high-strength nuts 5 for connection, and the flexible connection mode allows deformation between connected components, so that under the action of an earthquake, when relative displacement or a corner occurs between the beam-column, the friction material plays a role in friction energy dissipation, the dynamic response of the structure under the action of the earthquake is reduced, and the purposes of energy dissipation and shock absorption are achieved.
According to the energy-consuming and shock-absorbing beam column joint structure, the assembled building beam column can deform in a flexible connection mode, so that the energy-consuming components work to play the effects of consuming earthquake energy and reducing the earthquake effect, and the flexible connection enables vibration of one side of the frame not to affect the other side; meanwhile, the friction material layer 3 is added at the nodes between the beams and the columns to consume energy and reduce vibration, so that the construction is relatively simple, the friction materials are various and easy to obtain, and the requirements of different design functions and manufacturing cost can be met.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (7)
1. The utility model provides an energy consumption shock attenuation beam column node structure for prefabricated building which characterized in that: the beam column node structure comprises a precast beam (1) and a precast column (2), wherein a friction material layer (3) is tightly attached to the top of the precast column (2), one end of the precast beam (1) is horizontally arranged and installed on the friction material layer (3) at the top end of the corresponding precast column (2), and the precast beam (1) and the precast column (2) which are connected with each other are flexibly connected through allowing the precast beam (1) and the precast column (2) to be connected with each other to generate displacement or a corner.
2. The energy dissipating, shock absorbing beam and column node construction for a fabricated building according to claim 1, wherein: longitudinal steel bars (4) are buried along the length direction of the prefabricated column (2), the upper ends of the longitudinal steel bars (4) extend out of the top ends of the prefabricated column (2) and the friction material layer (3), one end of the prefabricated beam (1) is flatly placed on the friction material layer (3) at the top end of the corresponding prefabricated column (2), the upper end of the longitudinal steel bars (4) upwards penetrates out of the upper edge of the prefabricated beam (1) and then is connected with nuts (5), and the nuts (5) and the longitudinal steel bars (4) which form a bolt structure are flexibly connected with the prefabricated beam (1) and the prefabricated column (2).
3. The energy dissipating, shock absorbing beam and column node construction for a fabricated building according to claim 2, wherein: the nut (5) and the longitudinal steel bar (4) form a high-strength bolt.
4. The energy dissipating, shock absorbing beam-column node construction for prefabricated buildings according to claim 1 or 2, wherein: the precast beam (1) is a reinforced concrete precast beam.
5. The energy dissipating, shock absorbing beam-column node construction for prefabricated buildings according to claim 1 or 2, wherein: the prefabricated column (2) is a reinforced concrete prefabricated square column.
6. The energy dissipating, shock absorbing beam and column node construction for a fabricated building according to claim 1, wherein: the friction material layer (3) is made of friction materials.
7. The energy dissipating, shock absorbing beam-column node construction for prefabricated buildings according to claim 1 or 6, wherein: the thickness of the friction material layer (3) is 1/4-2/3 of the thickness of the precast beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911022909.6A CN110670724A (en) | 2019-10-25 | 2019-10-25 | Energy-consuming and shock-absorbing beam column joint structure for prefabricated building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911022909.6A CN110670724A (en) | 2019-10-25 | 2019-10-25 | Energy-consuming and shock-absorbing beam column joint structure for prefabricated building |
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| CN110670724A true CN110670724A (en) | 2020-01-10 |
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| CN201911022909.6A Pending CN110670724A (en) | 2019-10-25 | 2019-10-25 | Energy-consuming and shock-absorbing beam column joint structure for prefabricated building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627545A (en) * | 2020-12-17 | 2021-04-09 | 李伯明 | Building frame installation process for box type building |
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2019
- 2019-10-25 CN CN201911022909.6A patent/CN110670724A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627545A (en) * | 2020-12-17 | 2021-04-09 | 李伯明 | Building frame installation process for box type building |
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