A masonry building structure column foot assembly type reinforcing device

Abstract

The application provides a masonry building structure column foot assembly type reinforcing device, and belongs to the technical field of column foot reinforcement. The device solves the problem that, in the prior art, when a column body is inclined and bent, the upper end edge of the column body and the reinforcing device form a shearing force, which causes damage to the column body. The device comprises a bottom plate assembly that embraces the column body. The bottom plate assembly is provided with anti-pulling bolts that are fixedly connected to the ground. The bottom plate assembly is provided with a support assembly. The support assembly is provided with a top plate assembly that embraces the column body. The top plate assembly is provided with an energy consumption assembly that embraces the column body and is used for limiting the bending of the column body. The reinforcing device is fixed to the ground through the anti-pulling bolts on the bottom plate assembly. The energy consumption assembly is used for absorbing and consuming the bending energy of the column body, and allows the column body to bend to a certain extent, so as to ensure that the column body is not damaged. For cultural relic buildings, the device can effectively reduce the damage to the cultural relic buildings while increasing the structural strength, and greatly prolongs the preservation time of the cultural relic buildings.

Description

Technical Field

[0001] The invention belongs to the technical field of column foot reinforcement, and in particular to an assembled reinforcement device for the column foot of a masonry building structure. Background Art

[0002] Currently, my country's construction landscape is shifting toward a coexistence of new and existing buildings. This is particularly true for cultural heritage buildings, which require reinforcement to extend their preservation. Existing masonry buildings are susceptible to damage at the base of columns, a crucial force-transmitting element, under the influence of earthquakes, vibrations, and harsh environmental erosion. This damage can compromise the safety of existing masonry structures, leading to serious safety hazards and economic losses. Effective reinforcement of the base of columns in existing masonry buildings can extend the service life of existing structures, ensuring their safety and long-term serviceability, and is of great significance to my country.

[0003] Cultural heritage buildings are the crystallization of human material and spiritual civilization throughout history, embodying human aesthetics and construction techniques. They are carriers of historical and cultural heritage and possess significant historical, cultural, and scientific value. Compared to modern architecture, cultural heritage buildings lack mature earthquake-resistant theories to draw upon during their construction. Furthermore, after long-term exposure to the natural environment, their material properties and bearing capacity have degraded to a certain extent. Column bases are particularly susceptible to damage under earthquakes, which can seriously impact the stability of cultural heritage buildings. Implementing appropriate column base reinforcement measures to ensure the safety and long-term preservation of cultural heritage buildings is an urgent and crucial task.

[0004] To achieve the goals of "carbon peak" and "carbon neutrality," the use of prefabricated technology is strongly advocated. As a green and environmentally friendly construction method, prefabricated technology has been applied to the construction of residential housing, industrial plants, and sports facilities, becoming a major direction of transformation in the construction industry. The modular assembly system divides the entire structure into multiple units, prefabricating each unit in the factory and then transporting it to the construction site for rapid assembly. Prefabricated technology has developed rapidly in China in recent years and has been widely used due to its advantages such as prefabrication, high industrial production efficiency, fast assembly speed, clear load transfer paths, high recycling rate, and environmental friendliness.

[0005] Existing technologies merely clamp and secure column bases. For example, patent publication number CN218467205U discloses a prefabricated, multifunctional device for reinforcing decayed column bases in wooden structures. The device hollows out the original concrete block encasing the wooden column, removes the decayed portion of the column base, and places a wooden column support device in the hole. The device comprises a steel casing and a jack. A jack screw extends into the steel casing and is rotated by a jack handle to elevate the column to its original elevation. The jack handle then locks the jack into the steel casing. The bottom of the wooden column support device is located within the concrete block and encased in bottom grouting material. The top is encased in upper grouting material, supporting the wooden column at the top. Steel hoops secure the wooden column and the upper grouting material to the outside. The device corrects settlement and reinforces decayed column bases, achieving the goal of strengthening decayed column bases. It offers the advantages of ease of assembly, rapid reinforcement, and cost-effectiveness. However, after the column tilts and bends, a shear force is formed between the column and the upper edge of the reinforcement device, thereby causing damage to the column, which is not conducive to the protection of the building. Summary of the Invention

[0006] In response to the above problems, the purpose of the present invention is to provide an assembled reinforcement device for the column base of a masonry building structure. The reinforcement device is fixed to the ground through anti-pullout bolts on the base plate assembly, and then the bending energy of the column is absorbed and consumed by the energy-absorbing assembly, and the column is allowed to bend to a certain extent to ensure that the column is not damaged.

[0007] The technical solution adopted in the present invention is as follows:

[0008] A masonry building structure column base assembly reinforcement device includes a base plate assembly that embraces the column, the base plate assembly is provided with anti-pullout bolts fixedly connected to the ground, the base plate assembly is provided with a support assembly, the support assembly is provided with a top plate assembly that embraces the column, and the top plate assembly is installed with an energy-absorbing assembly that embraces the column and is used to limit the bending of the column.

[0009] Preferably, the energy-absorbing assembly includes a mounting plate connected to the top plate assembly by screws, a first clamping plate in contact with the surface of the column and a second clamping plate spaced apart on the outside of the first clamping plate are vertically connected to the mounting plate, and an energy-absorbing plate is detachably connected between the first clamping plate and the second clamping plate.

[0010] Preferably, the outer side of the first clamping plate and the inner side of the second clamping plate are both provided with protrusions, and the energy dissipation plate is fitted onto the protrusions and then connected via screws.

[0011] Preferably, the top plate assembly includes at least two assembled first L-shaped plates, and the two first L-shaped plates are connected into a whole by bolts on the mounting plate.

[0012] Preferably, the support assembly includes at least two first vertical plates arranged at intervals, at least two slots are vertically provided on the first vertical plates, and a second vertical plate is clamped between the two first vertical plates via the slots.

[0013] Preferably, the base plate assembly includes at least two second L-shaped plates, and the side walls of the second L-shaped plates are vertically provided with connecting plates. After the two second L-shaped plates are spliced ​​together, the two connecting plates fit together and are detachably connected by screws.

[0014] Preferably, the second L-shaped plate is provided with a slot for clamping the first vertical plate.

[0015] Preferably, the connecting plate is detachably connected to a U-shaped connecting piece via a screw, and a connecting component connecting the energy-absorbing component and the top plate component is vertically arranged on the U-shaped connecting piece. The connecting component includes a tension screw, and compression springs are arranged at both ends of the tension screw. A first washer is arranged on the outside of the compression spring, and the end of the tension screw is threadedly connected to a first nut located on the outside of the first washer.

[0016] Preferably, the support assembly is detachably connected to an L-shaped connector that fits the upper end surface of the U-shaped connector via a screw, and part of the tension screw passes through the L-shaped connector and is then connected to the U-shaped connector.

[0017] Preferably, the anti-pullout bolt includes a countersunk head, on which a sleeve, a disc spring and a second washer are movably sleeved in sequence, and a second nut is threadedly sleeved on the countersunk head.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] The reinforcement device is fixed to the ground through the anti-pullout bolts on the base plate assembly, and then the bending energy of the column is absorbed and consumed by the energy-absorbing assembly, and the column is allowed to bend to a certain extent to ensure that the column is not damaged. For cultural relics buildings, while increasing the structural strength, it can effectively reduce the damage to the cultural relics buildings and greatly extend the preservation time of the cultural relics buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0022] Figure 2A schematic diagram of the structure of the energy dissipation component and the top plate component provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a top view of the energy-consuming component provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the support assembly structure provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the connection assembly structure provided by an embodiment of the present invention;

[0026] Figure 6 A schematic structural diagram of a base plate assembly provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the anti-pullout bolt structure provided in an embodiment of the present invention.

[0028] Figure markings: 1-column; 2-energy absorption component; 201-mounting plate; 202-second clamping plate; 203-first clamping plate; 204-energy absorption plate; 205-through hole; 206-protrusion; 3-top plate assembly; 301-first L-shaped plate; 4-support assembly; 401-first vertical plate; 402-second vertical plate; 403-slot; 5-connecting assembly; 501-tension screw; 502-compression spring; 503-first washer; 504-first nut; 6-L-shaped connector; 7-7-shaped connector; 8-bottom plate assembly; 801-second L-shaped plate; 802-connecting plate; 803-slot; 9-pull-out bolt; 901-countersunk head; 902-sleeve; 903-disc spring; 904-second washer; 905-second nut. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] The following combination Figure 1-Figure 7 The present invention is described in detail.

[0033] Example

[0034] A masonry building structure column base assembly reinforcement device includes a base plate assembly 8 that embraces a column 1, the base plate assembly 8 is provided with anti-pullout bolts 9 fixedly connected to the ground, the base plate assembly 8 is provided with a support assembly 4, the support assembly 4 is provided with a top plate assembly 3 that embraces the column 1, and the top plate assembly 3 is installed with an energy dissipation assembly 2 that embraces the column 1 and is used to limit the bending of the column 1.

[0035] The anti-pullout bolts 9 on the base plate assembly 8 fix the entire reinforcement device to the ground. The energy-absorbing assembly 2 surrounding the outside of the column 1 can absorb and consume the bending energy of the column 1 and allow the column 1 to bend to a certain extent to ensure that the column 1 will not be sheared and broken, which can increase the structural strength of the cultural relic building while reducing damage to the cultural relic building.

[0036] The energy-absorbing assembly 2 includes a mounting plate 201 connected to the top plate assembly 3 via screws. A first clamping plate 203 in contact with the surface of the column 1 and a second clamping plate 202 spaced apart on the outside of the first clamping plate 203 are vertically connected to the mounting plate 201. An energy-absorbing plate 204 is detachably connected between the first clamping plate 203 and the second clamping plate 202. A strip-shaped through-hole 205 is vertically provided on the energy-absorbing plate 204 so that the energy-absorbing plate 204 can deform and absorb energy. When the column 1 tilts, the first clamping plate 203 is subjected to force and deflects outward, squeezing the energy-absorbing plate 204. After absorbing energy, the energy-absorbing plate 204 deforms and is damaged. The first clamping plate 203 can be hinged to the mounting plate 201 to facilitate its deflection. The energy-absorbing plate 204 is made of Q235 steel, a steel with a yield strength range of 100MPa-225MPa, to ensure good plasticity.

[0037] The outer side of the first clamping plate 203 and the inner side of the second clamping plate 202 are both provided with protrusions 206. The energy dissipation plates 204 are attached to the protrusions 206 and then connected via screws. The protrusions 206 and the screws used to install the energy dissipation plates 204 facilitate assembly. At the same time, because the protrusions 206 separate the two energy dissipation plates 204, the energy dissipation plates 204 have sufficient space to deform.

[0038] The top plate assembly 3 includes at least two joined first L-shaped plates 301, which are connected into a single unit by bolts on the mounting plate 201. Some of the bolts on the mounting plate 201 are connected to one of the first L-shaped plates 301, while the remaining bolts are connected to the other first L-shaped plate 301, thereby connecting the two first L-shaped plates 301 into a single unit.

[0039] The support assembly 4 includes at least two first vertical plates 401 spaced apart from each other. Each first vertical plate 401 has at least two vertical slots 403 formed therein. A second vertical plate 402 is secured between the two first vertical plates 401 via the slots 403. When the two first vertical plates 401 and the two second vertical plates 402 are secured together, they encircle the column 1 and provide stable support for the top plate assembly 3, allowing the energy dissipation assembly 2 on the top plate assembly 3 to transfer load downward.

[0040] The bottom plate assembly 8 includes at least two second L-shaped plates 801. Connecting plates 802 are vertically mounted on the sidewalls of the second L-shaped plates 801. When the two second L-shaped plates 801 are assembled, the two connecting plates 802 abut against each other and are detachably connected via screws. In this application, four second L-shaped plates 801 are provided, and the second L-shaped plates 801 are interconnected to form an encircling shape.

[0041] The second L-shaped plate 801 is provided with a slot 803 for clamping the first vertical plate 401. The slot 803 is provided to position the first vertical plate 401, ensuring that the support assembly 4 is quickly installed in place.

[0042] A 7-shaped connector 7 is removably connected to the connecting plate 802 via a screw. A connecting assembly 5 is vertically mounted on the 7-shaped connector 7, connecting the energy dissipation assembly 2 and the top plate assembly 3. The connecting assembly 5 comprises a tensioning screw 501, with compression springs 502 mounted at each end. A first washer 503 is positioned outside the compression spring 502, and a first nut 504 is threadedly connected to the end of the tensioning screw 501, located outside the first washer 503. The tensioning screw 501 connects the energy dissipation assembly 2, the top plate assembly 3, and the bottom plate assembly 8 into a single unit, increasing the structural strength of the reinforcement device. The compression spring 502 acts as a buffer for energy transferred from top to bottom.

[0043] An L-shaped connector 6, which engages with the upper end surface of the 7-shaped connector 7, is detachably connected to the support assembly 4 via a screw. A portion of the tension screw 501 passes through the L-shaped connector 6 and then connects to the 7-shaped connector 7. The L-shaped connector 6 cooperates with the 7-shaped connector 7 to increase the structural strength of the 7-shaped connector 7 and prevent it from easily deforming or damaging. At the same time, the L-shaped connector 6 also connects the support assembly 4 to the connecting assembly 5, further ensuring the overall strength of the reinforcement device and preventing the second vertical plate 402 from sliding out of the first vertical plate 401 along the slot 403.

[0044] The pull-out bolt 9 includes a countersunk head 901, on which a sleeve 902, a disc spring 903, and a second washer 904 are movably mounted. A second nut 905 is threadedly mounted on the countersunk head 901. The countersunk head 901 and sleeve 902 are first inserted into the pre-set hole. The base plate assembly 8 is assembled and placed on the ground. The upper end of the countersunk head 901 is movably inserted through the mounting hole reserved in the second L-shaped plate 801. The disc spring 903, second washer 904, and second nut 905 are then installed in sequence. The second nut 905 is screwed, causing the countersunk head 901 to move outward and force the sleeve 902 to expand and abut against the inner wall of the hole, thereby securing the base plate assembly 8. The deformation of the disc spring 903 achieves self-reset, and the elastic deformation of the disc spring 903 absorbs external energy, improving the energy dissipation capacity of the column foot node and ensuring the safety of the column.

[0045] The above-mentioned detachable connections are all connected by screws, which is convenient for assembly. The reinforcement device of the present application is easy to assemble and reversible. All components can be prefabricated in the factory in advance. Only simple bolt connection work is required during on-site construction, which can achieve rapid assembly and disassembly, high installation efficiency and easy replacement, avoiding on-site welding processes, high assembly efficiency, and meeting the principle of minimum intervention; the reinforcement device of the present application has high rigidity and a clear force mechanism. Through the collaborative work between different components, the comprehensive service performance of the column base is enhanced; due to the presence of bolts, the various components can work together better and cooperate closely, meeting the design principle of "strong nodes, weak components", significantly improving the overall anti-lateral displacement and anti-overturning capabilities of the structure, and enhancing the overall stability; the main raw material of the column base reinforcement device is steel, which has low cost and is easy to recycle, and has great engineering application value.

[0046] The present application forms a base plate assembly 8 that surrounds the column through bolt connection, and adopts a reinforcement method of increasing the column cross-section to achieve a reinforcement effect that improves the column's lateral resistance. During the assembly process, since the bolts themselves have a certain adjustable length, the connection of the base plate assembly 8 can provide a certain dimensional margin for the column, making the manufacture and installation of the component extremely flexible.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A masonry building structure column base assembly reinforcement device, characterized in that: The invention comprises a bottom plate assembly (8) that embraces a column (1), the bottom plate assembly (8) is provided with anti-pullout bolts (9) fixedly connected to the ground, the bottom plate assembly (8) is provided with a support assembly (4), the support assembly (4) is provided with a top plate assembly (3) that embraces the column (1), and the top plate assembly (3) is installed with an energy dissipation assembly (2) that embraces the column (1) and is used to limit the bending of the column (1); the bottom plate assembly (8) comprises at least two second L-shaped plates (801), the side walls of the second L-shaped plates (801) are vertically provided with connecting plates (802), and after the two second L-shaped plates (801) are spliced ​​together, the two connecting plates ( 802) are fitted together and the two connecting plates (802) are detachably connected via screws, a 7-shaped connecting piece (7) is detachably connected to the connecting plate (802) via the screws, a connecting assembly (5) for connecting the energy-absorbing assembly (2) and the top plate assembly (3) is vertically arranged on the 7-shaped connecting piece (7), the connecting assembly (5) comprises a tensioning screw (501), compression springs (502) are arranged at both ends of the tensioning screw (501), a first washer (503) is arranged on the outside of the compression spring (502), and an end of the tensioning screw (501) is threadedly connected to a first nut (504) located on the outside of the first washer (503).

2. The assembled reinforcement device for column bases of masonry building structures according to claim 1, characterized in that: The energy dissipation assembly (2) comprises a mounting plate (201) connected to the top plate assembly (3) via screws, a first clamping plate (203) in contact with the surface of the column (1) and a second clamping plate (202) spaced apart and arranged outside the first clamping plate (203) are vertically connected to the mounting plate (201), and an energy dissipation plate (204) is detachably connected between the first clamping plate (203) and the second clamping plate (202).

3. The assembled reinforcement device for column bases of masonry building structures according to claim 2, characterized in that: The outer side of the first clamping plate (203) and the inner side of the second clamping plate (202) are both provided with protrusions (206), and the energy dissipation plate (204) is connected to the protrusions (206) by means of screws after being fitted thereon.

4. The assembled reinforcement device for column bases of masonry building structures according to claim 2, characterized in that: The top plate assembly (3) comprises at least two assembled first L-shaped plates (301), and the two first L-shaped plates (301) are connected into a whole by bolts on the mounting plate (201).

5. The assembled reinforcement device for column bases of masonry building structures according to claim 1, characterized in that: The support assembly (4) comprises at least two first vertical plates (401) arranged at intervals, at least two slots (403) being vertically arranged on the first vertical plates (401), and a second vertical plate (402) being clamped between the two first vertical plates (401) via the slots (403).

6. The assembled reinforcement device for column bases of masonry building structures according to claim 5, characterized in that: The second L-shaped plate (801) is provided with a slot (803) for clamping the first vertical plate (401).

7. The assembled reinforcement device for column bases of masonry building structures according to claim 1, characterized in that: The support assembly (4) is detachably connected to an L-shaped connector (6) that fits the upper end surface of the 7-shaped connector (7) via a screw, and a portion of the tension screw (501) passes through the L-shaped connector (6) and is then connected to the 7-shaped connector (7).

8. The assembled reinforcement device for column bases of masonry building structures according to claim 1, characterized in that: The anti-pullout bolt (9) comprises a countersunk head (901), a sleeve (902), a disc spring (903) and a second washer (904) being movably sleeved on the countersunk head (901) in sequence, and a second nut (905) being threadedly sleeved on the countersunk head (901).

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