Prefabricated frame structure damper
By using prefabricated frame structure dampers and utilizing slip to change the stress state, the high cost and low efficiency of prefabricated buildings have been solved, achieving efficient construction and improved seismic performance.
Patent Information
- Application Number
- CN202520048530.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing prefabricated buildings suffer from high initial investment costs, limited design freedom, inconvenient transportation, reliance on external supply chains, and the need for accurate design and construction plans, all of which affect construction efficiency.
Design a prefabricated frame structure damper, including prefabricated concrete columns, column embedded parts, beam embedded parts, cover plates and bolt connections. By sliding and changing the stress state under seismic action, replaceable energy-dissipating and damaged components at the nodes are realized, while other components maintain elastic or plastic deformation.
During an earthquake, the nodes are in a state of purely connection-based stress, damaged parts can be replaced, and other parts maintain elastic or plastic deformation, which improves construction efficiency and seismic performance and reduces maintenance costs.
Smart Images
Figure CN223661089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building technology, specifically a prefabricated frame structure damper. Background Technology
[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories are processed and manufactured in factories, transported to the construction site, and assembled on-site using reliable connection methods.
[0003] Existing prefabricated buildings have high initial investment costs, limited design freedom, inconvenient transportation, reliance on external supply chains, and require accurate design and construction plans, which seriously affect construction efficiency and fail to meet usage requirements. To address this, we propose a prefabricated frame structure damper. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a prefabricated frame structure damper that has the advantages of high construction efficiency. It solves the problems of high initial investment costs, limited design freedom, inconvenient transportation, reliance on external supply chains, and the need for accurate design and construction plans in existing prefabricated buildings, which seriously affect construction efficiency and fail to meet usage requirements.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated assembled frame structure damper, comprising a prefabricated concrete column, a column embedded part fixedly connected to the right side of the prefabricated concrete column, a beam embedded part provided to the right side of the column embedded part, a prefabricated concrete beam provided to the right side of the beam embedded part, a first flange cover plate provided at the top of both the column embedded part and the beam embedded part, a second flange cover plate provided at the bottom of both the column embedded part and the beam embedded part, and a web cover plate provided on both the front and back of both the column embedded part and the beam embedded part. Bolts are movably connected to the inner cavities of the first flange cover plate, the second flange cover plate, the column embedded part, the beam embedded part, and the web cover plate, and nuts are threaded onto the surface of the bolts. A screw is provided on one side of the beam embedded part, and the right side of the screw passes through the beam embedded part and the prefabricated concrete beam in sequence and extends into the inner cavity of the prefabricated concrete beam.
[0006] Preferably, the top of the first flange cover and the second flange cover are provided with a third mounting hole, and the front of the web cover is provided with a first mounting hole.
[0007] Preferably, the column embedded part has a first movable groove on its top, bottom and front, and the beam embedded part has a second movable groove on its top, bottom and front.
[0008] Preferably, a second mounting hole is provided on the right side of the beam embedded part, and the second mounting hole is adapted to the screw.
[0009] Compared with the prior art, this utility model provides a prefabricated assembled frame structure damper, which has the following advantages:
[0010] When an earthquake occurs, before the bending moment at the joint of the precast concrete column and precast concrete beam reaches the moment required for relative slippage, the deformation mode of the joint is approximately that of a cast-in-place joint. When the inter-story displacement reaches a certain amplitude, the friction between the web cover plate, the first flange cover plate, and the second flange cover plate and the embedded parts of the column and beam reaches its maximum static friction value. At this point, relative slippage begins between the web cover plate, the first flange cover plate, and the second flange cover plate and the embedded parts of the column and beam. The joint bending moment then reaches the sliding bending moment. However, in the event of a rare earthquake, the building structure experiences significant inter-story displacement under seismic action, and the web cover plate, the first flange cover plate, and the second flange cover plate all begin to slip relative to the embedded parts of the column and beam. Significant displacement occurs between the embedded parts and the beam embedded parts, reaching the maximum relative displacement value reserved. That is, the bolt slides along with the first flange cover plate and the second flange cover plate to the edge of the reserved slot on the first and second movable grooves. The bolt changes from the original stress state dominated by pre-tightening force to a state of shear force where the bolt pre-tightening force and the bolt hole wall are in close contact with the bolt. At this time, the node is in a state of purely relying on the connection to bear the force. During the entire stress process of the node under the seismic action, except for the first flange cover plate, the second flange cover plate, and the web cover plate which are replaceable energy-dissipating damaged parts, other parts and concrete are in the elastic working stage or have a small amount of plastic deformation. After the earthquake, only the damaged parts need to be replaced. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 3 This is a partial structural diagram of the present invention from a first-view perspective.
[0014] Figure 4 This is a partial structural schematic diagram of the present invention from a second perspective.
[0015] In the diagram: 1. Precast concrete column; 2. Column embedded part; 3. Beam embedded part; 4. Bolt; 5. Nut; 6. First flange cover plate; 7. Second flange cover plate; 8. First movable groove; 9. Web cover plate; 10. First mounting hole; 11. Second movable groove; 12. Second mounting hole; 13. Screw; 14. Precast concrete beam; 15. Third mounting hole. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0018] Please see Figures 1 to 4 As shown, this utility model provides a prefabricated assembled frame structure damper, including a prefabricated concrete column 1. A column embedded part 2 is fixedly connected to the right side of the prefabricated concrete column 1. A beam embedded part 3 is provided on the right side of the column embedded part 2. A prefabricated concrete beam 14 is provided on the right side of the beam embedded part 3. A first flange cover plate 6 is provided on the top of both the column embedded part 2 and the beam embedded part 3. A second flange cover plate 7 is provided on the bottom of both the column embedded part 2 and the beam embedded part 3. A web cover plate 9 is provided on the front and back of both the column embedded part 2 and the beam embedded part 3. Bolts 4 are movably connected to the inner cavities of the first flange cover plate 6, the second flange cover plate 7, the column embedded part 2, the beam embedded part 3, and the web cover plate 9. Nuts 5 are threaded onto the surface of the bolts 4. A screw 13 is provided on one side of the beam embedded part 3. The right side of the screw 13 passes through the beam embedded part 3 and the prefabricated concrete beam 14 in sequence and extends into the inner cavity of the prefabricated concrete beam 14.
[0019] The top of the first flange cover plate 6 and the second flange cover plate 7 are both provided with a third mounting hole 15, and the front of the web cover plate 9 is provided with a first mounting hole 10.
[0020] The column embedded part 2 has a first movable groove 8 on its top, bottom and front, and the beam embedded part 3 has a second movable groove 11 on its top, bottom and front.
[0021] A second mounting hole 12 is provided on the right side of the beam embedded part 3, and the second mounting hole 12 is compatible with the screw 13.
[0022] Working principle: When an earthquake occurs, before the bending moment at the joints of precast concrete column 1 and precast concrete beam 14 reaches the moment required for relative slippage, the joints exhibit an approximate deformation mode of integral cast-in-place joints. When the inter-story displacement reaches a certain amplitude, the frictional force between the web cover plate 9, the first flange cover plate 6, and the second flange cover plate 7 and the embedded parts 2 and 3 of the column and beam reaches its maximum static friction value. At this point, relative slippage begins between the web cover plate 9, the first flange cover plate 6, and the second flange cover plate 7 and the embedded parts 2 and 3 of the column and beam. The joint bending moment reaches the sliding bending moment. When a rare earthquake occurs, the building structure experiences significant inter-story displacement under seismic action, and the web cover plate 9, the first flange cover plate 6, and the second flange cover plate 7, along with the embedded parts 2 and 3 of the column and beam, begin to slip. A significant displacement occurs between the column embedded part 2 and the beam embedded part 3, reaching the maximum value of the reserved relative displacement. That is, the bolt 4 slides to the edge of the reserved slot on the first movable groove 8 and the second movable groove 11 along with the first flange cover plate 6 and the second flange cover plate 7. The bolt 4 changes from the original state of being mainly under the pre-tightening force to the state of being under the shear force of the bolt 4 pre-tightening force and the bolt 4 hole wall being close to the bolt. At this time, the node is in a state of being purely under the force of connection. During the entire stress process of the node under the earthquake action, except for the first flange cover plate 6, the second flange cover plate 7 and the web cover plate 9 which are replaceable energy-consuming damaged parts, other parts and concrete are in the elastic working stage or have a small amount of plastic deformation. After the earthquake, only the damaged parts need to be replaced.
[0023] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0024] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A prefabricated assembled frame structure damper, comprising a prefabricated concrete column (1), characterized in that: A column embedded part (2) is fixedly connected to the right side of the precast concrete column (1). A beam embedded part (3) is provided on the right side of the column embedded part (2). A precast concrete beam (14) is provided on the right side of the beam embedded part (3). A first flange cover plate (6) is provided on the top of both the column embedded part (2) and the beam embedded part (3). A second flange cover plate (7) is provided on the bottom of both the column embedded part (2) and the beam embedded part (3). The front and back of the column embedded part (2) and the beam embedded part (3) are... All surfaces are provided with web cover plates (9). The inner cavities of the first flange cover plate (6), the second flange cover plate (7), the column embedded part (2), the beam embedded part (3) and the web cover plate (9) are all movably connected with bolts (4). The surface of the bolts (4) is threaded with nuts (5). One side of the beam embedded part (3) is provided with screws (13). The right side of the screws (13) passes through the beam embedded part (3) and the precast concrete beam (14) in sequence and extends into the inner cavity of the precast concrete beam (14).
2. The prefabricated assembled frame structure damper according to claim 1, characterized in that: The top of the first flange cover (6) and the second flange cover (7) are provided with a third mounting hole (15), and the front of the web cover (9) is provided with a first mounting hole (10).
3. The prefabricated assembled frame structure damper according to claim 1, characterized in that: The column embedded part (2) has a first movable groove (8) on its top, bottom and front, and the beam embedded part (3) has a second movable groove (11) on its top, bottom and front.
4. A prefabricated assembled frame structure damper according to claim 1, characterized in that: The beam embedded part (3) has a second mounting hole (12) on its right side, which is compatible with the screw (13).