Two-stage energy dissipation assembly type combined bearing wall based on rubber support connection

Abstract

The utility model discloses a two-stage energy consumption assembly type combined load-bearing wall based on rubber support connection, which belongs to the technical field of load-bearing walls and comprises a bottom support, a load-bearing wall body and two groups of rubber supports. The bottom support is horizontally arranged, a connecting base is arranged on the top face of the bottom support, and a connecting groove is formed in the top face of the connecting base. The bearing wall is vertically arranged above the bottom support, a connector is arranged on the bottom face of the bearing wall, the connector is inserted into the connecting groove of the connecting base in a matched mode, and a moving space for the connector to horizontally move left and right is formed in the connecting groove. The two sets of rubber supports are located on the left side and the right side of the connecting base respectively and spaced from the connecting base. The bottom face of the rubber support is detachably connected with the bottom support, and the top face of the rubber support is detachably connected with the bearing wall. The fabricated combined bearing wall solves the problems that an existing fabricated combined bearing wall is poor in anti-seismic performance, complex in anti-seismic structure and inconvenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of load-bearing wall technology, and in particular to a two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber support connection. Background Technology

[0002] Prefabricated composite load-bearing walls are a widely used wall structure in the process of building industrialization, with advantages such as high construction efficiency and low environmental pollution. Prefabricated composite load-bearing walls are assembled from prefabricated components through reliable connection methods, and can withstand various loads from the superstructure, including vertical loads, horizontal wind loads, and seismic forces. However, compared with cast-in-place concrete structures, they have the disadvantage of poorer seismic performance.

[0003] Existing technology CN 117966921 A proposes a seismic-resistant structure for prefabricated building walls, comprising a seismic-resistant base, a first seismic-resistant unit, and a second seismic-resistant unit. A load-bearing plate is horizontally installed within the seismic-resistant base, and the top of the load-bearing plate is connected to the wall via fasteners. The first seismic-resistant unit is connected between the bottom wall of the seismic-resistant base and the bottom surface of the load-bearing plate, used to buffer vertical vibrations experienced by the wall. The second seismic-resistant unit is symmetrically connected between the side wall of the seismic-resistant base and the side surface of the load-bearing plate, used to buffer horizontal vibrations experienced by the wall. When the building wall is subjected to vibration, the first and second seismic-resistant units can effectively absorb and dissipate seismic waves from all directions, reducing the transmission of seismic waves from the ground to the wall, thereby improving seismic resistance. However, this seismic-resistant structure is relatively complex, making wall installation inconvenient, and the core components of the seismic-resistant structure are installed within the seismic-resistant base, making repair and replacement difficult when damaged, resulting in maintenance difficulties.

[0004] Therefore, it is evident that the aforementioned seismic-resistant structure is not suitable for prefabricated composite load-bearing walls. Consequently, it is necessary to propose a prefabricated composite load-bearing wall that is relatively simple in structure, easy to install and maintain, and has good seismic resistance. Utility Model Content

[0005] This invention proposes a two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connections to solve the problems of poor seismic performance, complex seismic structure, and inconvenient maintenance of existing prefabricated composite load-bearing walls.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A two-stage energy-dissipating prefabricated load-bearing wall based on rubber bearing connections includes: a bottom support, a load-bearing wall body, and two sets of rubber bearings; the bottom support is horizontally arranged, with a connecting seat on its top surface, and a connecting groove on the top surface of the connecting seat; the load-bearing wall body is vertically arranged above the bottom support, with a connector on its bottom surface, the connector being inserted into the connecting groove of the connecting seat, the connecting groove having space for the connector to move left and right; the two sets of rubber bearings are located on the left and right sides of the connecting seat respectively, and are spaced apart from the connecting seat; the bottom surface of the rubber bearing is detachably connected to the bottom support, and the top surface of the rubber bearing is detachably connected to the load-bearing wall body.

[0008] Furthermore, both the bottom support and the load-bearing wall are made of reinforced concrete.

[0009] Furthermore, both the connecting seat and the connecting head are made of steel-concrete composite.

[0010] Furthermore, the rubber support is detachably connected to the bottom support via a first connecting assembly. The first connecting assembly includes a plurality of first bolts, a plurality of first pre-embedded anchor bars, a plurality of first straight threaded sleeves, and a first connecting plate. The plurality of first pre-embedded anchor bars are vertically arranged inside the bottom support and are connected to the first connecting plate via the plurality of first straight threaded sleeves. The first connecting plate is located on the top surface of the bottom support, and the rubber support is placed on the top surface of the first connecting plate. The plurality of first bolts movably pass through the bottom of the rubber support and the first connecting plate and are threadedly connected to the plurality of first straight threaded sleeves respectively.

[0011] Furthermore, the rubber support is detachably connected to the load-bearing wall via a second connecting assembly. The second connecting assembly includes a plurality of second bolts, a plurality of second pre-embedded anchor bars, a plurality of second straight threaded sleeves, and a second connecting plate. The plurality of second pre-embedded anchor bars are vertically arranged within the load-bearing wall and connected to the second connecting plate via the plurality of second straight threaded sleeves. The second connecting plate is located on the bottom surface of the load-bearing wall and placed on the top surface of the rubber support. The plurality of second bolts movably pass through the top of the rubber support and the second connecting plate and are threadedly connected to the plurality of second straight threaded sleeves respectively.

[0012] Furthermore, a number of the first bolts and a number of the second bolts are arranged around the center line of the rubber support.

[0013] Furthermore, the first straight threaded sleeve is connected to the first pre-embedded anchor bar and the first connecting plate by welding, and the second straight threaded sleeve is connected to the first pre-embedded anchor bar and the second connecting plate by welding.

[0014] Furthermore, the connecting seat is located in the middle of the top surface of the bottom support, and the connecting groove is located in the middle of the top surface of the connecting seat.

[0015] Furthermore, the connector is located in the middle of the bottom surface of the load-bearing wall, and the two sets of rubber supports are located at the edges of the left and right sides of the bottom surface of the load-bearing wall, respectively.

[0016] Furthermore, both the connector and the connecting groove have elliptical cross-sections.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] 1. This utility model has the advantages of simple structure, convenient installation, and easy maintenance. During installation, the connector on the bottom surface of the load-bearing wall is connected to the connector on the top surface of the bottom support, and then reinforced by two sets of rubber supports. Installation is convenient, and the resulting wall structure has high stability. The connector and connector constitute the core load-bearing area, and with the fixing effect of the two sets of rubber supports, it can meet the requirements of prefabricated load-bearing walls for deformation, energy dissipation, and seismic isolation performance. The connector has a connecting groove to connect with the connector, limiting excessive displacement of the load-bearing wall while providing sufficient vertical load-bearing capacity. The rubber supports are exposed on the outside and are detachably connected to the load-bearing wall and the bottom support via a connecting assembly consisting of bolts, pre-embedded anchor bars, straight threaded sleeves, and connecting plates, facilitating replacement and maintenance.

[0019] 2. This utility model employs a two-stage energy dissipation mechanism, achieving good seismic resistance. After the structure is assembled, the rubber bearings and the core load-bearing area in the middle jointly bear the axial load transmitted downward from the upper structure. During an earthquake, the load-bearing walls undergo lateral movement under seismic forces, at which point the structure enters the first-stage energy dissipation state. In this stage, seismic energy is mainly dissipated by the elastic deformation of the rubber bearings and the sliding friction of the connectors. When the displacement is large, the inner wall of the connecting groove contacts the outer wall of the connector, and the structure enters the second-stage energy dissipation state. In this stage, seismic energy is dissipated through the deformation and damage of the structure itself. In the event of a minor earthquake, the horizontal displacement of the structure is small, and seismic energy is dissipated solely by the first-stage energy dissipation state, preventing seismic damage to the walls. When a major earthquake occurs, the structure experiences reciprocating horizontal loads, causing it to alternate between a primary energy dissipation state, a secondary energy dissipation state, and a primary energy dissipation state. The primary energy dissipation state helps the structure absorb some of the seismic energy, reducing the total amount of seismic energy borne by the main structure. This helps reduce and control seismic damage to the walls and acts as a seismic isolation mechanism. The secondary energy dissipation state ensures that the structure has sufficient seismic resistance under the influence of a major earthquake.

[0020] 3. This utility model adopts a prefabricated structure, which avoids the construction quality problems caused by cast-in-place structures, improves the quality of the wall structure, enhances the safety and service life of the wall structure, is easy to install, helps to shorten the construction period, and has good practicality and application prospects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention in its first-level working state;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention in its secondary working state;

[0023] Figure 3 This is an assembly diagram of the present invention;

[0024] Figure 4 This is a top view of the bottom support of this utility model;

[0025] Figure 5 This is a bottom view of the load-bearing wall of this utility model;

[0026] Figure 6 This is a schematic diagram showing the arrangement of the first connecting component and the second connecting component of this utility model;

[0027] The components in the attached diagram are labeled as follows: 1-bottom support, 2-load-bearing wall, 3-rubber support, 4-connecting seat, 5-connecting groove, 6-connecting head, 7-moving space, 8-first bolt, 9-first embedded anchor bar, 10-first straight threaded sleeve, 11-first connecting plate, 12-second bolt, 13-second embedded anchor bar, 14-second straight threaded sleeve, 15-second connecting plate. Detailed Implementation

[0028] 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.

[0029] like Figure 1-6 As shown, a two-stage energy-dissipating prefabricated load-bearing wall based on rubber bearing connection includes: a bottom support 1, a load-bearing wall body 2, and two sets of rubber bearings 3.

[0030] The bottom support 1 is horizontally positioned, and a connecting seat 4 is provided on its top surface, located in the middle of the top surface of the bottom support 1. A connecting groove 5 is formed on the top surface of the connecting seat 4, located in the middle of the top surface of the connecting seat 4. The load-bearing wall 2 is vertically positioned above the bottom support 1, and a connector 6 is provided on its bottom surface, located in the middle of the bottom surface of the load-bearing wall 2. The connector 6 is inserted into the connecting groove 5 of the connecting seat 4, and the connecting groove 5 has a space 7 for the connector 6 to move left and right.

[0031] The bottom support 1 and the load-bearing wall 2 are both made of reinforced concrete, while the connecting seat 4 and the connecting head 6 are both made of steel-concrete composite. The steel-concrete composite is used to withstand seismic loads under strong earthquakes. The cross-sections of the connecting head 6 and the connecting groove 5 are both elliptical.

[0032] Two sets of rubber bearings 3 are located on the left and right sides of the connecting seat 4, respectively, and are spaced apart from the connecting seat 4. Specifically, the two sets of rubber bearings 3 are located at the edges of the bottom surface of the load-bearing wall 2 on the left and right sides, respectively, to facilitate the installation and removal of the rubber bearings 3. The rubber bearings 3 must have sufficient vertical load-bearing capacity and a certain lateral stiffness to ensure that the structure does not undergo significant displacement under slight lateral loads. Each set of rubber bearings 3 includes one or more rubber bearings 3, the specific number of which is determined according to the actual situation.

[0033] The bottom surface of the rubber bearing 3 is detachably connected to the bottom support 1. Specifically, the rubber bearing 3 is detachably connected to the bottom support 1 via a first connecting assembly, which includes a plurality of first bolts 8, a plurality of first pre-embedded anchor bars 9, a plurality of first straight threaded sleeves 10, and a first connecting plate 11. The plurality of first pre-embedded anchor bars 9 are vertically arranged inside the bottom support 1 and are connected to the first connecting plate 11 via the plurality of first straight threaded sleeves 10. The first connecting plate 11 is located on the top surface of the bottom support 1, and the rubber bearing 3 is placed on the top surface of the first connecting plate 11. The plurality of first bolts 8 movably pass through the bottom of the rubber bearing 3 and the first connecting plate 11, and are threadedly connected to the plurality of first straight threaded sleeves 10 respectively.

[0034] The top surface of the rubber bearing 3 is detachably connected to the load-bearing wall 2. Specifically, the rubber bearing 3 is detachably connected to the load-bearing wall 2 via a second connecting assembly, which includes several second bolts 12, several second pre-embedded anchor bars 13, several second straight threaded sleeves 14, and a second connecting plate 15. The several second pre-embedded anchor bars 13 are vertically arranged inside the load-bearing wall 2 and are connected to the second connecting plate 15 via several second straight threaded sleeves 14. The second connecting plate 15 is located on the bottom surface of the load-bearing wall 2 and is placed on the top surface of the rubber bearing 3. The several second bolts 12 movably pass through the top of the rubber bearing 3 and the second connecting plate 15, and are threadedly connected to the several second straight threaded sleeves 14 respectively.

[0035] Among them, several first bolts 8 and several second bolts 12 are arranged around the center line of the rubber support 3. The first straight threaded sleeve 10 is connected to the first pre-embedded anchor bar 9 and the first connecting plate 11 by welding, and the second straight threaded sleeve 14 is connected to the first pre-embedded anchor bar 9 and the second connecting plate 15 by welding.

[0036] In this embodiment, both the first bolt 8 and the second bolt 12 are high-strength bolts, both the first straight-threaded sleeve 10 and the second straight-threaded sleeve 14 are high-strength straight-threaded sleeves, and both the first embedded anchor bar 9 and the second embedded anchor bar 13 are L-shaped. There are eight of each: the first bolt 8, the second bolt 12, the first straight-threaded sleeve 10, the second straight-threaded sleeve 14, the first embedded anchor bar 9, and the second embedded anchor bar 13. The bottom and top surfaces of the rubber support 3, the first connecting plate 11, and the second connecting plate 15 are all square, and through holes are provided for the bolts to pass through. Two first embedded anchor bars 9 located on the same side of the square are arranged opposite each other, and two second embedded anchor bars 13 located on the same side of the square are arranged opposite each other. The rubber support 3 of this utility model is detachably connected to the bottom support 1 and the load-bearing wall 2 by bolts, which has the advantage of convenient assembly and disassembly. By setting embedded anchor bars and straight-threaded sleeves in the concrete, the stability of the connection can be effectively improved.

[0037] This invention employs a two-stage energy dissipation mechanism to achieve better seismic resistance. After the structure is assembled, the rubber bearings 3 and the core load-bearing area in the middle jointly bear the axial load transmitted downward from the superstructure. During an earthquake, the load-bearing wall 2 undergoes lateral movement under seismic action, at which point the structure enters the first-stage energy dissipation state. In this stage, seismic energy is mainly dissipated by the elastic deformation of the rubber bearings 3 and the sliding friction of the connectors 6. When the displacement is large, the inner wall of the connecting groove 5 contacts the outer wall of the connector 6, and the structure enters the second-stage energy dissipation state. In this stage, seismic energy is dissipated through the deformation and damage of the structure itself.

[0038] During minor earthquakes, the horizontal displacement of the structure is small, and the seismic energy can be dissipated solely by the primary energy dissipation state, preventing seismic damage to the walls. During major earthquakes, the structure experiences cyclical horizontal loads, resulting in a cycle of primary energy dissipation state, secondary energy dissipation state, and primary energy dissipation state. The primary energy dissipation state helps the structure absorb some of the seismic energy, reducing the total amount of seismic energy borne by the main structure, thus helping to reduce and control seismic damage to the walls and providing seismic isolation. The secondary energy dissipation state ensures that the structure has sufficient seismic resistance under major earthquakes.

[0039] This utility model has the advantages of simple structure, convenient installation, and easy maintenance. During installation, the connector 6 on the bottom surface of the load-bearing wall 2 is connected to the connector 4 on the top surface of the bottom support 1, and then reinforced by two sets of rubber supports 3. Installation is relatively convenient, and the resulting wall structure has high stability. The connector 6 and connector 4 form the core load-bearing area, and with the fixing effect of the two sets of rubber supports 3, they can meet the requirements of prefabricated load-bearing walls for deformation, energy dissipation, and seismic isolation performance. The connector 4 has a connecting groove 5 that connects with the connector 6, limiting excessive displacement of the load-bearing wall while providing sufficient vertical load-bearing capacity. The rubber supports 3 are exposed on the outside and are detachably connected to the load-bearing wall 2 and the bottom support 1 via a connecting assembly consisting of bolts, pre-embedded anchor bars, straight threaded sleeves, and connecting plates, facilitating replacement and maintenance.

[0040] This utility model adopts a prefabricated structure, which avoids the construction quality problems caused by cast-in-place structures, improves the quality of the wall structure, enhances the safety and service life of the wall structure, is easy to install, helps to shorten the construction period, and has good practicality and application prospects.

[0041] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connections, characterized in that, include: The system comprises a bottom support, a load-bearing wall, and two sets of rubber supports. The bottom support is horizontally positioned with a connecting seat on its top surface, and a connecting groove on the top surface of the connecting seat. The load-bearing wall is vertically positioned above the bottom support, with a connector on its bottom surface. The connector is inserted into the connecting groove of the connecting seat, which provides space for the connector to move left and right. The two sets of rubber supports are located on the left and right sides of the connecting seat, spaced apart from it. The bottom surface of each rubber support is detachably connected to the bottom support, and the top surface of each rubber support is detachably connected to the load-bearing wall.

2. The two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: The bottom support and load-bearing wall are both made of reinforced concrete.

3. The two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: Both the connecting seat and the connector are made of steel-concrete composite.

4. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: The rubber support is detachably connected to the bottom support via a first connecting assembly. The first connecting assembly includes a plurality of first bolts, a plurality of first pre-embedded anchor bars, a plurality of first straight threaded sleeves, and a first connecting plate. The plurality of first pre-embedded anchor bars are vertically arranged inside the bottom support and are connected to the first connecting plate via the plurality of first straight threaded sleeves. The first connecting plate is located on the top surface of the bottom support, and the rubber support is placed on the top surface of the first connecting plate. The plurality of first bolts movably pass through the bottom of the rubber support and the first connecting plate and are threadedly connected to the plurality of first straight threaded sleeves respectively.

5. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 4, characterized in that: The rubber bearing is detachably connected to the load-bearing wall via a second connecting assembly. The second connecting assembly includes several second bolts, several second pre-embedded anchor bars, several second straight threaded sleeves, and a second connecting plate. Several second pre-embedded anchor bars are vertically arranged in the load-bearing wall and connected to the second connecting plate via several second straight threaded sleeves. The second connecting plate is located on the bottom surface of the load-bearing wall and placed on the top surface of the rubber bearing. Several second bolts movably pass through the top of the rubber bearing and the second connecting plate and are threadedly connected to several second straight threaded sleeves respectively.

6. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 5, characterized in that: Several of the first bolts and several of the second bolts are arranged around the center line of the rubber support.

7. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 6, characterized in that: The first straight threaded sleeve is connected to the first pre-embedded anchor bar and the first connecting plate by welding, and the second straight threaded sleeve is connected to the first pre-embedded anchor bar and the second connecting plate by welding.

8. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: The connecting seat is located in the middle of the top surface of the bottom support, and the connecting groove is located in the middle of the top surface of the connecting seat.

9. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: The connector is located in the middle of the bottom surface of the load-bearing wall, and the two sets of rubber supports are located at the edges of the left and right sides of the bottom surface of the load-bearing wall, respectively.

10. A two-stage energy-dissipating prefabricated composite load-bearing wall based on rubber bearing connection according to claim 1, characterized in that: Both the connector and the connecting groove have elliptical cross-sections.

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